July 2008 Rev 1 1/66

UM0527User manual

UPS evaluation board

IntroductionThe UPS evaluation board provides a complete solution addressing the low/medium range UPS segment with 700 VA output power capability. The evaluation board, from a hardware and firmware point of view, is ready to support the development of a complete solution. Thanks to the PC software it's possible to monitor all the relevant system parameters using the RS232 interface or the USB. The evaluation board is available for the 120 Vac market and 230 Vac market.

The UPS evaluation board is built in offline topology with AVR regulation of the mains boost and buck. The inverter module contains the push-pull DC/DC converter and the DC/AC output full-bridge generating quasi-sine waveform.

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Contents UM0527

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Contents

1 General description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

1.1 Hardware architecture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

1.1.1 General realization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

1.1.2 Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

1.1.3 Detailed description of electronics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

1.1.4 DC/DC converter module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

1.1.5 DC/AC inverter module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

1.1.6 Power switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

1.1.7 RFI/EMI filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

1.1.8 Charger AC/DC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

1.1.9 Control unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

1.1.10 Power supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

1.1.11 Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

1.1.12 Measurements: input voltage, input voltage phase, output current, inverter output voltage, battery voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

1.1.13 Battery overcurrent protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

1.1.14 Mains protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

1.1.15 UPS modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

1.1.16 Microcontroller IN/OUT signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

1.1.17 Signals functions table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

1.1.18 Detailed description of mechanics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

1.2 Software architecture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

1.2.1 Data models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

1.2.2 Protocols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

1.2.3 System architecture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

1.2.4 Main loop . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

1.2.5 ADC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

1.2.6 Communication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

1.2.7 SPI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

1.2.8 Keyboard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

1.2.9 LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

1.2.10 Charger . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

1.2.11 Inverter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

2 Technical description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

UM0527 Contents

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2.1 Circuit diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

2.2 Layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

2.3 Assembly description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

2.3.1 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

2.3.2 Electrical . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

2.3.3 Mechanical . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

2.4 Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

2.4.1 PCB: mains input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

2.4.2 PCB: outlet output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

2.4.3 PCB: AVR transformer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

2.4.4 PCB: battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

2.4.5 PCB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

2.4.6 PCB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

2.4.7 PCB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

2.5 Signalization description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

2.5.1 Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

2.5.2 Sound alarms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

2.6 Bill of material . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

2.6.1 Bill of material for 120 Vac version . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

2.6.2 Bill of material for 230 Vac version . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58

3 Technical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64

4 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65

List of figures UM0527

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List of figures

Figure 1. Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6Figure 2. DC/DC converter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7Figure 3. DC/AC inverter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9Figure 4. Power switches. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11Figure 5. RFI/EMI filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12Figure 6. AC/DC battery charger . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13Figure 7. Control unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15Figure 8. Power supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17Figure 9. Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19Figure 10. Measurements: input voltage, input voltage phase, output current, inverter output

voltage, battery voltage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21Figure 11. Battery overcurrent protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22Figure 12. Main flowchart. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29Figure 13. Circuit diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33Figure 14. DC/AC inverter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34Figure 15. DC/DC converter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35Figure 16. Control unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36Figure 17. Power switches. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37Figure 18. AC/DC battery charger . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38Figure 19. PC interface stage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39Figure 20. Power supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40Figure 21. Measurement stages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41Figure 22. RFI/EMI filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42Figure 23. Battery overcurrent protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42Figure 24. Top view . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43Figure 25. Bottom view . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44Figure 26. Electrical connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46Figure 27. Mechanical view . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46Figure 28. UPS with assembled rear outlets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47Figure 29. UPS with front button and indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47Figure 30. UPS with batteries and battery fuse . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47Figure 31. UPS with battery fuse . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48Figure 32. UPS with AVR transformer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48Figure 33. UPS with automatic fuse and power wires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48Figure 34. UPS with motherboard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49Figure 35. UPS fully assembled. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49Figure 36. UPS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

UM0527 General description

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1 General description

1.1 Hardware architecture

1.1.1 General realization

The UPS evaluation board is built in offline topology with AVR regulation of the mains boost and buck. The inverter module contains the push-pull DC/DC converter and the DC/AC output full-bridge generating quasi-sine waveform. The battery charger module is connected at the output of the UPS and it also has the function of taking over the reactive power which is present on the inverter during battery operation with reactive - resistive load.

The microcontroller controls all UPS functions. It monitors the mains parameters in order to ensure the proper level of the output voltage. The microcontroller measurement parameters are input/output mains voltage and phase, output inverter voltage, battery voltage, output current and output power. The UPS has a built-in RS232, joint signals and USB interfaces (USB for RS232 converter).

General description UM0527

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1.1.2 Block diagram

Figure 1. Block diagram

HVDC

INV

_AIN

V_B

INV_OUT1

INV_OUT2

VDD

VD

D

GN

D

VD

D

DC

/AC

Invverter

DCAC12st05v031.sch

HVDC

VA

KK

VDD

SHD

VDCDC

GND

DC

/DC

converter

DCDC12st05v031.sch

VCC

BAT_LOW

ACF!

UPS_OFF!

USB_IN!

TXD

RXD

INP_LEV

PHASE

ACL!

ACH!

ACF

OUT_REL!

OUT_LEV

INV_A

INV_B

SHD

CHOFF

AKK_LEV

VCC

ON/OFF

SW_ONP

PWR_LEV

VDCDC

ACI!

GND

VCCPU

VCC

VCC

ACF1!

Microcontroller

unitM

icrocontroller12st05v031.sch

AC

_IN1

AC

_IN2

ACL!

ACH!

ACF

OUT_REL!

IOUT_2

IOUT_1

AC_1

AC_2

INV_OUT1

INV_OUT2

AC_IN2

AC_IN1

ACI!

GND

VPP

AC_IN1

AC_IN2

AC_1

AC_2

Pow

erR

elays

Relays12st05v031.sch

AC_2

AC_1

VD

D

CH

OFF

VBAT

VD

D

+VO

UT

GND

AC

/DC

Charger

AC

DC

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VCC

BAT_LOW

ACF!

UPS_OFF!

USB_IN!

TXD

RXD

GND

ACF1!

Inerfaceunit

Interface12st05v031.sch

VD

D

VB

AT

+VO

UT

AC_IN2

ON/OFF

SW_ONP

VCC

AC_IN1

GND

VPP

VCCPU

Pow

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PowerSupply12st05v031.sch

IOUT_1

IOUT_2

PWR_LEV

GND

VCC

Output Current MeasurementOutputCurrent12st05v031.sch

VBAT

AKK_LEV

GNDVCC

Battery

Voltage

BatteryVoltage12st05v031.sch

AC_2

AC_1

OUT_LEV

GND

OutputV

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AC_IN1

AC_IN2

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VCC

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D

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InputVoltage

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AC

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AC

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VBAT

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KK

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Battery

Overcurrent

Protection

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AV

RT

RA

FO

INP

UT

OUTPUT

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DIN

DIC

AT

ION

SB

UT

TO

N

FUSE

FUSE

VCC

BAT_LOW

ACF!

UPS_OFF!

USB_IN!

TXD

RXD

INP_LEV

PHASE

ACI!

ACF

ACL!

ACH!

OUT_REL!

OUT_LEV

INV_A

INV_B

VDCDC

SHD

CHOFF

VA

KK

VB

AT

AKK_LEV

VCC

ON/OFF

SW_ONP

PWR_LEV

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UT

VD

DV

DD

AC_IN2

AC_IN1

AC_1

AC_2

AC_1

AC_2

AC_IN1

AC_IN2

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AC

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AC

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HVDC

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VCCPU

VCC

VDD

VCC

ACF1!

UM0527 General description

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1.1.3 Detailed description of electronics

1.1.4 DC/DC converter module

Figure 2. DC/DC converter

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10R

Q6

STP75NF75

GN

D

D26

STTH8R06D

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STTH8R06D

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STTH8R06D

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Err

Am

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Shut

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100k

100k

100k

100k

30k

120V

acM

odel

230V

acM

odel

VD

CD

C

SHD

HV

DC

VD

DV

DD

VA

KK

VA

KK

GN

DG

ND

C72

100n

F

GN

D

C43

1nF

GN

D

1uF

General description UM0527

8/66

The converter is based on push-pull topology. The PWM controller works in voltage mode. The power components used for the low voltage side are switches 5 - 8 and a transformer. The energy recovery circuit includes L1, D1, L2, D2, C1 and R1. It works as both a clamp and a snubber. Power components on the secondary side are limited to rectifier diodes D3 - D6 and a small voltage smoothing capacitor. The output voltage is limited with direct control loop without insulation. An internal soft-start circuit is used to limit the voltage rise rate on the output of the DC/AC converter. The soft-start circuit is controlled from the microcontroller by an additional transistor. The PWM controller is powered from the main UPS power supply section. The output converter voltage range is battery voltage dependent and has been set to achieve maximum efficiency.

Table 1. DC/DC specification

DC/DC converter 120 Vac version 230 Vac version

Output voltage 130 – 190 V 250 - 360 V

Output power 450 W 450 W

Efficiency > 80% > 80%

Frequency 40 kHz ± 10% 40 kHz ± 10%

PWM controller U1 SG3525 SG3525

Power switches 5 – 8 STP75NF75 STP75NF75

Push-pull transformer T11 EE42 EE42

Rectifiers diodes D1 – D4 STTH803 STTH8R06

UM0527 General description

9/66

1.1.5 DC/AC inverter module

Figure 3. DC/AC inverter

DC

/AC

INV

ER

TE

RH

VD

C

GN

D

D1

SMB

YT

01

VD

D

R12

10k

R11

10k

R7

100R

C1

10uF

/25V

R14 10

k

R13

10k

LIN

1H

IN2

VC

C3

GND4

LV

G5

VO

6H

VG

7V

B8

U1

L63

87D

Q1

STP1

2NM

50

Q2

STP1

2NM

50Q

4ST

P12N

M50

Q3

STP1

2NM

50

D2

SMB

YT

01

VD

DC

2

10uF

/25V

LIN

1H

IN2

VC

C3

GND 4

LV

G5

VO

6H

VG

7V

B8

U2

L63

87D

INV

_BIN

V_A

INV

_AIN

V_B

INV

_OU

T2

INV

_OU

T1

R1

100R

R2

100R

C8

100n

FC

1010

0nF

C9 10

0nF

C11 10

0nF

GN

D

GN

D

GN

D

GN

D

R3

0RD

3B

AS1

6

R8

100R

R4

51R

D4

BA

S16

R10

100RR

651

RD

7B

AS1

6

R9

100RR

50R

D6B

AS1

6

ZD

1SM

6T18

A

D5

BA

S16

ZD

2SM

6T18

A

D8

BA

S16

STP2

2NS2

5ZST

P22N

S25Z

STP2

2NS2

5ZST

P22N

S25Z

RA

D1

Hea

tsin

k

RA

D3

Hea

tsin

k

RA

D2

Hea

tsin

k

RA

D4

Hea

tsin

k

C4

10uF

/35V

C3

10uF

/35V

INV

_AIN

V_B

INV

_AIN

V_B

INV_OUT1

INV_OUT2

120V

acM

odel

230V

acM

odel

HV

DC

GN

D GN

D

HV

DC

VD

DV

DD

R17

347

R

R16

410R

D47

STT

H1L

06A

D48

STT

H1L

06A

R17

447

R

R17

210

R

C36

100p

F

GN

D

C35

100p

F

GN

D

C39

100p

FC

4010

0pF

GN

DG

ND

General description UM0527

10/66

The DC/AC inverter was built in full-bridge topology. The output waveform is a quasi-sine waveform. The inverter is controlled by the microcontroller across two PWM drivers which switch four power transistors. The high-side driver parts are supplied with the bootstrap circuitry D1, C1 and D2, C2. The diodes D1 and D2 are high-voltage fast-recovery diodes. Switching off all transistors is achieved with driver internal logic if both INV_A and INV_B signals are set high or low. There is no any additional overcurrent protection for bridge transistors. Drivers are powered from the main UPS supply unit.

Table 2. DC/AC specification

DC/AC inverter 120 Vac version 230 Vac version

Output voltage RMS 120 Vac +5%/ -10% 230 Vac +5%/ -10%

Frequency (microcontroller outputs)

60 Hz ± 0.1 Hz 50 Hz ± 0.1Hz

Drivers U1, U2 L6387 L6387

Power switches Q1 – Q4 STP22NS25Z STP12NM50

Bootstrap diode D1, D2 SMBYT01-400 SMBYT01-400

UM0527 General description

11/66

1.1.6 Power switches

Figure 4. Power switches

1

J8 6.3x

0.8

1

J7 6.3x

0.8

1

2

3

4

L8

1:10

00

IOUT_2

IOUT_1

RL

5

RM

84-2

022-

25-1

024

RL

2

RM

85-2

011-

25-1

024

RL

3

RM

85-2

011-

25-1

024

1

J56.

3x0.

8

1

J46.

3x0.

8

D12

BA

S16

D34

BZ

V55

C20

D33

BZ

V55

C20

D11 B

AS1

6

VPP

VPP

VPP

AC

L!

AC

H!

D35

BZ

V55

C20

D14 B

AS1

6O

UT

_RE

L!

RL

4

RM

84-2

012-

25-1

024

INV_OUT1

INV_OUT2

1

J66.

3x0.

8D

13B

AS1

6

D36

BZ

V55

C75V

PP

D10

BA

S16

D31 B

ZV

55C

10

VPP

AC

F

OU

TP

UT

IOU

T_2

IOU

T_1

OU

T_R

EL

!

AC

H!

AC

L!

AC

F

AV

R

AC

_1

AC

_2

AC

_IN

1

AC

_IN

2R

L1

SCL

-1-H

-DPN

O

AC

I!A

CI!

D32

BZ

V55

C10

120V

acM

odel

230V

acM

odel

INV

_OU

T2

INV

_OU

T1

AC

_IN

2

AC

_IN

1

VPP

GN

DG

ND

VPP

AC

_1

AC

_2

tRT

1JN

R15

S70L

t

RT

2JN

R15

S70L

JNR

15S2

R5M

JNR

15S2

R5M

D49

BZ

V55

C75

BL

AC

K

WH

ITE

RE

D

BR

OW

N

BL

UE

General description UM0527

12/66

The power line contains:

two pole separation relays DPNO (RL1) (with 2 mm gap)

two relays DPDT (RL2, RL3)

two pole switching battery/mains relays DPDT (RL4)

two pole output on/off relays DPNO (RL5)

All relay coils are powered from the battery and charger voltage. The current transformer is used for monitoring UPS output current and power. The additional AVR boost/buck autotransformer has two sections: winding and output power 60VA. Relay coils are controlled by the microcontroller signals through an additional driver.

1.1.7 RFI/EMI filter

Figure 5. RFI/EMI filter

An additional EMI/RFI filter contains one X-type capacitor and a pair of Y-type capacitors.

L

N

C1204,7nF

AC_IN1

AC_IN2

PE R90200k

MA

INS

RFI/EMI FILTER

RV1

JVR-20N471K

R88200k

R89200k

JVR-20N271K

AC_IN1

AC_IN2

1

J9

6.3x0.8

1

J10

6.3x0.8

1

J11

6.3x0.8

C1194,7nF C108

470nF

BROWN

BLUE

YELLOW/GREEN

UM0527 General description

13/66

1.1.8 Charger AC/DC

Figure 6. AC/DC battery charger

AC

/DC

BA

TT

ER

YC

HA

RG

ER

GN

D

R94

10k

C10

1

1000uF/50V

GN

D

D38

STPS

8H10

0D

D16

BA

S16

GN

DC99

1nF

500V

R64

10R

R16

10k

GN

D

C20 100nF

GN

D

L11

10uH

/3A

C19100n

F

GN

D

+VO

UT

GN

D

1 4

12 10

6 732

9`

81113T

1

TI5

0/30

v02

R20

100k

VD

D

F11,25

AC

96

100nFX2

VFF

3

VDD8

ZCD5

VFB 1

COMP 2

GD

7

CS

4

GND 6

U11

L65

65

GN

D

GN

D

R13

416

k

R13

275

0k

R13

543

k

R95

10k

GN

D

R138

33k

VB

AT

MA

X+2

8.2V

61

8

7

23

U12

TL431CD

R13

639

k

R11

53.

3k

R57

22k

GN

D

R13

95.

6k

R14

018

0R

Q12

BC

857B

Ove

rvol

tage

Pro

tect

ion

32V

TH

1T

YN

608

GN

D

2

1

3

4

BR

1K

BU

605

Con

trol

volta

geou

tput

Cur

rent

Mod

eC

harg

ing

Vol

tage

Mod

eC

harg

ing

Pout

(max

)=50

WC

harg

erO

utpu

t

VB

AT

R12

9 10R

GN

D

GN

D

Q11

STP5NK90Z

R13

333

R

R15

10k

GN

D

CH

OFF

VB

AT

MIN

+26.

8V

R12

310

0k

D37

STT

H1R

06

R12

712

0k3W

C97

680pF1600V

AC

_2

AC

_1

Q10

STP8

0PF5

5

U6

PDT

C11

4ET

+VO

UT

ZD

3

BZ

X84

C12

C10

0

100uF/50V

GN

D

RA

D11

Hea

tsin

k

2A

R13

175

0k

R13

0

750k

GN

D

R63

10R

R12

410

0k

R12

510

0k

R12

610

0k

GN

D

C98

47uF/50V

C21 100nF

GN

DG

ND

C10

2

1000uF/50V

R12

210

0kG

ND

R65

10R

R12

8

120k3W

RA

D12

Hea

tsin

kR

137

0.68R2W

L9

10uH

/3A

L10

10uH

/3A

C18 100nF

C49

1nF

C79

10nF

C95

47nF

X2

120V

acM

odel

230V

acM

odel

CH

OFF

AC

_1

AC

_2

D15

BA

S16

D17

BA

S16

Q9

STP8

0PF5

5

VB

AT

GN

D

+VO

UT

GN

D

+VO

UT

VD

DV

DD

R52

4.7R

3W

C44

47nF

X2

General description UM0527

14/66

The battery charger is used as a battery charger for the mains mode or as a reactive power recirculation circuit for the inverter mode. For both modes the charger output power is accepted by the battery. The charger power converter is built in quasi-resonant flyback mode based on the controller L6565 with external power switch Q1 and output diode D1. The PWM controller is powered from the main UPS supply module and from the auxiliary winding on the flyback transformer. The transformer is designed with the ETD29 core. The CHOFF signal is used to switch (Q2 and Q3 STP80PF55) charging modes by the microcontroller. An additional output voltage loop limits open output charger voltage. The charger module also contains a battery overvoltage protection circuit with SCR TYN608 and voltage reference TL431.

Table 3. Battery charger specifications

AC/DC converter 120 Vac version 230 Vac version

Max output voltage 29 Vdc ± 5%

Max output power 50 W

Efficiency >80%

Minimal switching frequency 100kHz ± 10%

Controller U1 L6565

Power switch Q11 STP5NK90Z

Transformer core ETD29

Rectifier diode D1 STPS8H100

Clamp diode D3 STTA106

UM0527 General description

15/66

1.1.9 Control unit

Figure 7. Control unit

GN

D

GN

D

C88 22

pF

C89

22pFY

116

MH

z

NC

1

ON/OFF

BUZZER

GN

DVC

CPU

RX

TX

RST!

PHA

SE

INV_A!INV_B!

BU

TT

ON

AC

LA

CF!

PWR

_LE

V

INP_

LE

V

AK

K_L

EV

TX

RX

L6 4.

7uH

L54.

7uH

ACI

VC

CPU

R11

0

4.7k

GN

D

C17

100n

F

GN

D

VD

D3

RE

S2

VSS 1

U8

STM

809L

L4

4.7u

H

L3

4.7u

HG

ND

VC

CPU

RST

!R

ESE

T!

ICC

_CL

KA

CH

VA

RE

F

VSS

A

OU

T_R

EL

R91

10k

RST

!IC

C_S

EL

GN

DIC

C_D

AT

A

ICP

prog

ram

min

gC

-FL

ASH

11

22

B1

BPT

-14

R12

02.

2k

VC

C

AC

I

R11

33.

3kR

114

3.3k

CO

M9

1B1

1C16

2B2

2C15

3B3

3C14

4B4

4C13

5B5

5C12

6B6

6C11

7B7

7C10

8

EU9

UL

N20

03D

AC

F!

INV

_A!

INV

_B!

OU

T_R

EL

!

INV

_AIN

V_B

GN

D

OU

T_R

EL

AC

L!

AC

LA

CH

VC

C

AC

H!

OU

T_L

EV

R11

8

2.2k

R11

9

2.2k

VC

CV

CC

ICC

_DA

TA

ICC

_CL

K

UPS

_OFF

!

LE

DR

LEDG

BA

T_L

OW

CHOFF

VC

C1 3 5 7

2 4 6 89

10

J2 IDC

10

GN

D

VC

CV

CC

D9

BA

S16

BU

TT

ON

YA

RA

GA

R10

933

0R

R10

733

0R

SW_O

NP

R92 10k

VC

CR

111

100R

R10

433

0RR

106

330R

R10

833

0R

LE

DR

LE

DG

R10

533

0R

LE

DY

OSC1OSC2

OSC

1

OSC

2

ICC_SEL

VAREF 13

VSSA 14

MCO/AIN8/PF0 15

BEEP/PF1(HS) 16

OCMP1_A/AIN10/PF4 18

ICAP1_A/PF6(HS) 19

EXTCLK_A/PF7(HS) 20

AIN

12/O

CM

P2_B

/PC

023

AIN

13/O

CM

P1_B

/PC

124

ICA

P2_B

/PC

225

ICA

P1_B

/PC

326

ICC

DA

TA

/MIS

O/P

C4

27A

IN14

/MO

SI/P

C5

28IC

CC

LK

/SC

K/P

C6

29A

IN15

/SS/

PC7

30PA

3(H

S)31

PA4(HS)34

PA6(HS)36 PA7(HS)37Vpp/ICCSEL38 RESET39 Vss_240 OSC241 OSC142 Vdd_243 PE0/TDO44

PE1/

RD

I1

PB0

2

PB3

5

PB4

(HS)

6

PD0/

AIN

07

PD1/

AIN

18

PB1

3

PB2

4

PD2/

AIN

29

PD3/

AIN

310

PD4/

AIN

411

PD5/AIN5 12

PF2(HS) 17

Vdd_0 21

Vss_0 22

Vdd

_132

Vss

_133

PA5(HS)35

U29

ST72

F324

BJ6

T6

LEDY

VDCDC

VC

CPU

GN

D

GNDVCCPU

VCCPU

GND

VAREFVSSA

USB

_IN

!

SHD

TX

DR

XD

INV

_AIN

V_B

AC

L!

AC

H!

AC

F

OU

T_R

EL

!

SW_O

NP

BA

T_L

OW

UPS

_OFF

!PH

ASE

PWR

_LE

VA

KK

_LE

VO

UT

_LE

VIN

P_L

EV

VD

CD

CC

HO

FFU

SB_I

N!

BA

T_L

OW

UPS

_OFF

!PH

ASE

PWR

_LE

VA

KK

_LE

VO

UT

_LE

VIN

P_L

EV

VD

CD

CC

HO

FFU

SB_I

N!

SHD

SHD

1 3 5 7

2 4 6 89

10

J1ID

C10

GN

D

VC

C

R38

1k

R37

1k

S1

Q2

W3

VSS

4

VC

C8

HO

LD

7

C6

D5

U10

M95

020W

MN

6P

MO

SI

MO

SI

ICC

_CL

KSC

K

ICC

_DA

TA

GN

D

MIS

O

VC

CPU

VC

CPU

R39

4.7k

RE

SET

!H

OL

D!

CS!

ACF1!

R93

10k

NC

1G

ND

AC

I!A

CI!

BU

ZZ

ER

GN

D

GN

D

CS! PH

ASE

INV

_B!

INV

_A!

UPS

_OFF

!A

KK

_LE

V

GN

D

C48

100n

F

C37

1nF

C38

1nF

GN

D

ON

/OFF

RST

!U

SB_I

N!

ICC

_CL

K

ICC

_SE

LIC

C_D

AT

A

BU

TT

ON

RX

TX

MO

SI

GN

D

GN

D

GN

DG

ND

GN

D

GN

DC70

10nF

C71

10nF

C73

1nF

C74

10nF

C76

10nF

C77

10nF

GN

DG

ND

GN

DG

ND

C51

100pF

C52

100pF

C53

100pF

C54

100pF

C55

100pF

C56

100pF

GN

DG

ND

GN

DV

CC

PU

C16 10

0nF

ON

/OFF

120V

acM

odel

230V

acM

odel

GN

D

TX

DR

XD

VC

CPU

VC

C

GN

DG

ND

VC

C

VC

CPU

Q15

MM

BT

A42

R86

4.7k

R87

10k

GN

D

AC

F!A

CF!

AC

F1!

AC

F1!

General description UM0527

16/66

The control unit contains the main microcontroller ST72F324J6T6 - in the TQFP 44 10x10 package with an ICP connector for programming, a reset STM809, a buffer ULN2003A for driving signals and an external EEPROM with SPI interface. Analog signals are measured with an internal 10-bit A/D converter. Digital inputs / outputs are used to control internal and external UPS signals. A thermistor is used to monitor internal UPS temperature.

UM0527 General description

17/66

1.1.10 Power supply

Figure 8. Power supply

D43

STT

H10

2A

GN

D

ON

/OFF

SW_O

NP

D21

BA

S16

U25

SFH

620A

-2C

112

22nF

VB

AT

GN

D

+VO

UT

C27

100n

F

VD

D

INH

3

GND 7

OU

T1

FB5

VR

EF

6

SYN

C2

COMP 4

VCC8

U26

L59

70D

D45

STPS

1L60

A

GN

D

C61

100p

FR

5822

k

L12

330u

H/0

.9A

SW_O

NP

AC

_IN

1

R15

336

k

ON

/OFF

R11

63.

3k

AC

_IN

2

GN

D

R15

2

22R

1W

+5V

dc

VD

Dpo

wer

supp

lyco

ntro

l

C30

100n

F

By

butto

n

C29

100n

F

Vol

tage

From

Bat

tery

C28

100n

F

Vol

tage

From

AC

/DC

Cha

rger

+15V

dc

PO

WE

RS

UP

PL

YV

CC

PU

VC

C

IN3

OU

T2

GND 1

LD

1086

U27

LD

1086

V50

GN

DG

ND

GN

DG

ND

R72

200k

GN

DG

ND

GN

D

U7

PDT

C11

4ET

100k

100k

100k

100k

RA

D13

Hea

tsin

k

R73

200k

R74 200k

R75

200k

C11

01u

F/5

0V

GN

D

C10

422

uF/3

5VC

113

47uF

/25V

C11

447

uF/2

5VC

105

100u

F/35

V

D42

STT

H10

2AD

44STT

H10

2A

L7

4.7u

H

VPP

AC

_IN

1

AC

_IN

2

+VO

UT

VB

AT

VD

D

VC

C

VC

CPU

VPP

GN

DG

ND

+VO

UT

VB

AT

DL

1

LE

D

R17

5

2.2k

GN

DV

CC

1

J17

6.3x

0.8

1

J3 6.3x

0.8

BL

AC

K

BL

AC

K

21

34

BR

2B

600C

1500

F31,25

A

GN

D

C41

100n

F

GN

D

GN

D

GN

D

C45

10uF

/100

V

C46

47uF

/25V

D51

STT

H10

2A

GN

D

R96

33k

D50

BZ

V55

C22

Q16

BD

X53

C

General description UM0527

18/66

The power supply unit provides two outputs used in UPS blocks: +15 V for most of the analog circuits and +5 V for the microcontroller. The switching voltage converter was built in step-down topology with an integrated regulator L5970. The microcontroller is supplied by linear regulator +5 V U3 LD1086V50. The switching regulator is controlled by the microcontroller ON / OFF signal and the BUTTON signal from the front panel ON/OFF switch. Additional supply is switched on by optocoupler SFH620 powered from the mains.

UM0527 General description

19/66

1.1.11 Interface

Figure 9. Interface

CO

MC10

3

22uF

/35V

V+

CO

M

R12

12.

2k

C10

9

2.2u

F/50

V

TR

IG2

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CV

olt

5T

HR

6

DIS

7

VCC8 GND 1

U14

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55C

DT

CO

M

C25

100n

F

C23

100n

F

C5

10uF/35VC

22

100n

FR97 10

k

R41

4.7k

V-

D18

BA

S16

CO

M

CO

M

VPC

VPC

OFF

OFF

1 6 2 7 3 8 4 9 5

J14

U21

PC81

7C

U19

PC81

7C

U20

PC81

7C

D19

BA

S16

R45

4.7k

R14

8

2.4k

R14

7

820R

BT

L

AC

FL

OFF

R14

6

4.7k

R14

5

4.7k

R48

4.7k

U22

PC81

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U23

PC81

7C

R11

2

100R

R99

20k

R14

4

2.2k

R14

9 6.8k

D20

BA

S16

R14

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3.3k

V-

V+

TX

D1

RX

D1

CO

M

VC

C

VC

C

GN

D

VC

C

CO

M

CO

M

CO

M

V+

V+

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AC

F1!

UPS

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RX

D

TX

D

Q13

BC

846B

Q14

BC

857B

GN

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AC

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T_L

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UPS

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RX

D

TX

D

GN

D

TxD

_USB

GN

D1

GN

D1

C92

22pFC91

22pF

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24M

Hz

USB

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1 2 3 4

J13 U

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C24

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R43

4.7k

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USB

RxD

_USB

OSC

OU

TO

SCIN

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USB

DP

USB

VC

C+5

V_U

SB

OSC

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T

OSC

IN

+5V

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USB

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USB

DP

ICC

CL

KIC

CD

AT

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TA

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ST_U

SBV

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ICC

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TA

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R98

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CR

141

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US

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t

C57

100pF

C58 100pF

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ND

1

RST

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RxD

_USB

ICP

RX

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D1

AC

FL

BT

L

OFF

U17

PC81

7C

U18

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R44

4.7k

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3

4.3k

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GN

D1

GN

D

R47

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C

U16

PC81

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R46

4.7k

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INH

6

AD

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A11

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A2

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B1

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B2

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C2

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A14

B15

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DR

B10

VEE 7

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HC

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GN

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GN

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T54

SD

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D41

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T54

A

Vcc

11

Vcc

28

Out

17

In1

2

In2

3

Gnd

14

Out

26

Gnd

25

U13

USB

6B1

Dat

aPr

otec

tion

C26

100n

F

GN

D

C59

100p

F

C60

100p

F

GN

D1

GN

D1

C10

610

0nF

GN

D1

+5V

_USB

GN

D1

GN

D1

VC

C

1357

24689

10J1

5

IDC

10

120V

acM

odel

230V

acM

odel

USB

_IN

!

VC

C

GN

DG

ND

VC

C

NC

10N

C9

NC

8

NC

4

NC

5N

C6

NC

7

R16

510

k

GN

D1R16

610

k

GN

D1R16

710

k

GN

D1R16

810

k

GN

D1R16

910

k

GN

D1R17

010

k

GN

D1R17

110

k

GN

D1

NC

10N

C9

NC

8

NC

4N

C5

NC

6N

C7

VSS

4

USB

DM

23

USB

DP

22

RE

SET

7

OSC

IN3

OSC

OU

T2

PA7

14

PB6

8

PA5

15PA

416

PB3

10

PB2

11

PB1

12PB

013

VD

D1

PA1

19PA

020

USB

VC

C24

VPP

9

PC0

6

VSS

A21

PC1

5

PA3

17PA

218

U15

ST72

F63B

E2M

1SO

24

GN

D1

NC

11N

C12

NC

13

R85

10k

GN

D1R84

10k

GN

D1R40

10k

GN

D1

NC

11N

C12

NC

13

General description UM0527

20/66

The interface unit provides the connection from the UPS unit to the PC via RS, USB or joint signals. The interface contains a USB to RS232 converter based on the microcontroller ST72F623F2M1, in the SO20 package powered from the PC, with optoisolation barrier (PC817B) and RS232 with optoisolation barrier (PC817B). The required voltage for the RS232 circuits is realized by the voltage pump converter built with NE555. The interface unit also contains an analog multi/demultiplexer M74HC4053 used to switch signals from the USB and RS232 to the microcontroller.

UM0527 General description

21/66

1.1.12 Measurements: input voltage, input voltage phase, output current, inverter output voltage, battery voltage

Figure 10. Measurements: input voltage, input voltage phase, output current, inverter output voltage, battery voltage

R155

1k

R158

20R

D23

BAS16

VCC

C84

10nF

GND

R156

47.5k

R157

47.5kC117

1.5nF

R150

6.8k

GND

C1181.5nF

R151

6.8k

R50

4.7k

R51

4.7kVCC

IOUT_1

IOUT_2

PWR_LEV

OUTPUT CURRENT

10

98

U28C

LM324 10R

IOUT_1

IOUT_2

120Vac Model230Vac Model

PWR_LEV

VCC

GNDGND

VCC

R15920k

R25100k

GND GND

VBATVCC

BATTERY VOLTAGE

D24BAS16

AKK_LEV

C63

10uF/50V

12

AKK_LEV

VCC

GNDGND

VCC

VBATVBAT

R83

200k

R82

200kR81

200k

R80

200k

OUT_LEV

AC_2

AC_1

INVERTER OUTPUT VOLTAGE

R16082k

GND

C8510nF

GND

R1612.4k

GND

100k 100k

100k 100k

2k

AC_1

AC_2

OUT_LEV

120Vac M230Vac M

GNDGND

R154

1k

D22

BAS16

VCC

C83

10nF

GND

R21

100k

R22100k

C115

1.5nF

R23

22k

GND C116

1.5nF

R24

22k

R100

10k

R101

10kVCC

INP_LEVAC_IN1

AC_IN2

INPUT VOLTAGE

R77

750k

R76

750k

R79

750k

R78

750kR492k

12

1314

U28D

LM324

360k 360k

360k360k

AC_IN1

AC_IN2

INP_LEV

120Vac Model230Vac Model

R26 1k

R2710k

R10210k

VCC

D46

BAT54

R162

1M

INPUT VOLTAGE PHASE

R10310k

GND

PHASE

R11710k

GND

VDD

VDD

GND

C710uF/35V

C31100nF

GND

3

21

411

U28A

LM324

5

67

U28B

LM324 GND

PHASE

VCC

GNDGND

VCC

VDDVDD

R1762k

GND

GND

GND

VCC

General description UM0527

22/66

Referring to Figure 10, the measurements are defined as follows:

a) Output current. Input voltage measurement unit is built as a differential amplifier with a 2.5 V offset (LM324). The output signal from the amplifier is connected to the A/D converter in the microcontroller.

b) Battery voltage. The input voltage phase unit works as a comparator (LM324) and contains information about the sign of the input voltage waveform.

c) Inverter output voltage. Output current unit is built as a differential amplifier with 2.5 V offset (LM324). The output signal from the amplifier is connected to the A/D converter in the microcontroller.

d) Input voltage. The inverter output voltage is monitored through the voltage divider and connected to the microcontroller A/D converter input.

e) Input voltage phase. The battery voltage measurement uses a resistive voltage divider and the next A/D converter input of the microcontroller.

1.1.13 Battery overcurrent protection

Figure 11. Battery overcurrent protection

The battery overcurrent protection is given by a fuse.

1.1.14 Mains protection

The mains is protected by an automatic fuse mounted in an enclosure. If tripping occurs, the fuse can be reset by the UPS user.

1.1.15 UPS modes

F2

3,15A 250V

VAKK

VBAT

GND

1

J12

1

J16

VAKK

VBAT

GND

Table 4. UPS modes

Mains mode

Boost mode

Buck mode

Inverter mode

Standby mode

Standby charge mode

OFF mode

UPS input On On On Off Off On Off

UPS output On/off On/off On/off On Off Off Off

Battery charger On On On Off(1) Off On Off

Inverter Off Off Off On Off Off Off

UM0527 General description

23/66

1.1.16 Microcontroller IN/OUT signals

Power supply VDD and VCC On On On On On On Off

Communication On On On On On On Off

1. Programming microcontroller only

Table 4. UPS modes (continued)

Mains mode

Boost mode

Buck mode

Inverter mode

Standby mode

Standby charge mode

OFF mode

Table 5. Microcontroller IN/OUT signals

Signal name

Port ST7

Pin no ST7

Type/active state Description

LEDR PA3 31 digital output/active low Red LED control

LEDG PA4 34 digital output/active low Green LED control

LEDY PA5 35 digital output/active low Yellow LED control

INV_A! PA6 36 digital output/active high Inverter control

INV_B! PA7 37 digital output/active high Inverter control

ACF! PB0 2 digital output/active low Input voltage (mains) fail

ACL PB1 3 digital output/active high AVR boost control

ACH PB2 4 digital output/active high AVR buck control

OUT_REL PB3 5 digital output/active high UPS output on/off

BAT_LOW PB4 6 digital output/active high Battery low voltage

USB_IN! PC0 23 digital input/active low USB connected to source (PC) signal

PHASE PC1 24 digital input/active high Input voltage (mains) phase signal

UPS_OFF! PC2 25 digital input/active low The UPS output off – joint signal

BUTTON PC3 26 digital input/active high Button signal

ICC_DATA PC4 27 SPI/ICCData input from external EEPROM / ICC data input (flash programming)

MOSI PC5 28 SPI Data output for external EEPROM

ICC_CLK PC6 29 SPI/ICCSPI clock / ICC clock output (flash

programming)

Unused PC7 30

TERM PD0 7 ADC analog input Temperature sense

PWR_LEV PD1 8 ADC analog input Output current measurement signal

AKK_LEV PD2 9 ADC analog input Battery voltage measurement signal

OUT_LEV PD3 10 ADC analog inputInverter output voltage measurement

signal

INP_LEV PD4 11 ADC analog input Input voltage measurement signal

General description UM0527

24/66

1.1.17 Signals functions table

VDCDC PD5 12 ADC analog inputConverter DC/DC output voltage

measurement signal

TX PE0 44 SCI transmit data out RS-232C TxD signal

RX PE1 1 SCI receive data in RS-232C RxD signal

CHOFF PF0 15 digital output/active high Battery charging mode control signal

BUZZER PF1 16 digital output/active high Buzzer signal

ACI PF2 17 digital output/active high Mains relay control signal

ON/OFF PF4 18 digital output/active high Power supply VDD on/off

SHD PF6 19 output Shutdown DC/DC converter signal

Unused PF7 20

ICC_SELTST/V

PP38 Input ICC mode flash programming

RST! RESET 39 input Reset

OSC1 OSC1 42 Resonator oscillator inverter output

OSC2 OSC2 41External clock input or resonator

oscillator inverter input

Table 5. Microcontroller IN/OUT signals (continued)

Signal name

Port ST7

Pin no ST7

Type/active state Description

Table 6. Signals functions table

Mains mode

Boost mode

Buck modeInverter mode

Standby mode

Standby charge mode

Off mode

ACI H H H L L H L

ACF! H H H L L H L

ACL L H L L L L L

ACH L L H L L L L

OUT_REL L/H L/H L/H H L L L

INV_A! L L L Active L L L

INV_B! L L L Active L L L

SHD L L L Active L L L

TERM Active Active Active Active Active Active Inactive

CHOFF Active Active Active H L Active Inactive

BUZZER Active Active Active Active Active Active Inactive

ON/OFF H H H H H H L

BUTTON Active Active Active Active Active Active Active

LEDR Active Active Active Active Active Active Inactive

UM0527 General description

25/66

1.1.18 Detailed description of mechanics

The standard enclosure dimensions are as follows:

Main PCB:

– Dimensions: 230 x 160 mm

– Type: double-sided GE (glass - epoxy), FR4 with SMOBC

LEDs and button PCB:

– Dimensions: 80 x 25 mm

– Type: single-sided GE (glass - epoxy), FR4 with SMOBC

LEDG Active Active Active Active Active Active Inactive

LEDY Active Active Active Active Active Active Inactive

TX Active Active Active Active Active Active Inactive

RX Active Active Active Active Active Active Inactive

USB_IN! H or L H or L H or L H or L H or L H or L L

BAT_LOW L L L H or L H or L L L

UPS_OFF! H or L H or L H or L H or L H H L

MOSI Active Active Active Active Active Active Inactive

ICC_SEL L L L L L L Active(1)

ICC_DATA/

MISOL/ Active L/ Active L/ Active L/ Active L/ Active L/ Active

Active(1)/

Inactive

ICC_CLK/

SCKL/ Active L/ Active L/ Active L/ Active L/ Active L/ Active

Active(1)/

Inactive

PHASE Active Active Active Active Active Active Inactive

INP_LEV Active Active Active Active Active Active Inactive

OUT_LEV Inactive Inactive Inactive Active Inactive Inactive Inactive

PWR_LEV Active Active Active Active Inactive Inactive Inactive

1. Programming microcontroller only

H - high level +5 Vdc

L - low level 0 Vdc

Active - active signal

Inactive - inactive signal

Table 6. Signals functions table (continued)

Mains mode

Boost mode

Buck modeInverter mode

Standby mode

Standby charge mode

Off mode

General description UM0527

26/66

1.2 Software architecture

1.2.1 Data models

The setting of the UPS is stored in EEPROM memory. The data format is shown in Table 7:

1.2.2 Protocols

The SEC protocol is described briefly below. All messages sent between the PC and the UPS look like:

^<type><len><data>

where:

^ : the header character

<type>: the type of message being sent

The PC sends the following message types to the UPS:

– P: PC polls UPS (a query)

– S: PC sets UPS variable

The UPS returns the following message types to the PC:

– D: UPS returns data to PC (result of query)

– 0: UPS rejected command sent from PC

– 1: UPS accepted command sent from PC

<len>: 3 characters length of following data (zero padded decimal ASCII)

<data> - "len" characters of data

Commands are contained in the <data> field and are always 3 characters long. The orders supported are listed in Table 8.

Table 7. Memory mapping

Address Name Length (bytes) Description

0 OFF_ADDR 1 Flag indicating state of UPS (on/off)

1 ATR_ADDR 1 Auto restart flag

2 SHUT_ADDR 1 Shutdown type

3 BATT_ADDR 1 Battery condition

4 ASHD_ADDR 1 Auto shutdown flag

Table 8. Poll commands

Query (3 characters) Response (values separated by commas)

ATR Auto restart: 0 - disabled or 1 - enabled

MAN “ST”

MOD “UPS reference design”

NOM“230,500,230,500,700,450,1,1” for EU version and

“120,600,120,600,700,450,1,1” for US version

UM0527 General description

27/66

1.2.3 System architecture

1.2.4 Main loop

The UPS works in 7 modes:

– Inverter mode - if the mains voltage is lower than 167 VAC RMS(87 for US version) or higher than 286 VAC RMS(153 for US version) the inverter is switched on. At outputs INV_B and INV_A, a PWM signal 50 Hz (60 for US version) with 40% or less duty cycles (depends on DC/DC output voltage) is generated. In inverter mode the ACF signal is switched on. If the mains voltage returns to the correct value (167 - 286 VAC or 87 - 153 VAC for US version), the PWM signal is

SDA Shutdown type: 0 – output, 1 - system

ST1Battery condition (0 – good, 1 – weak, 2 - replace), battery status (0 –

normal, 1 – low, 2 - depleted), battery voltage (V/10), battery current (A/10)

ST2 Input num lines (1), mains frequency (Hz/10), mains voltage (V/10)

ST3Output source (0 – normal, 1 – on battery, 3 – reducing, 4 – boosting, 5 –

out off), output voltage (V/10), output current (A/10), output power (W)

STR Test result summary (1 – passed, 2 – in progress, 4 – battery test fail)

AP1 “10,16,17,18,19,20,22,24,43”

AP2 “51,58,59,60,61,62,63,64,65,68,73,76,77,80,82,83,84,85,87”

VER “V 1-0-0-0 w”

Table 9. Set commands

Query (3 characters) Response (values separated by commas)

ATR Auto restart: 0 - disabled or 1 - enabled

SDA Shutdown type: 0 – output, 1 - system

PSDShutdown after delay (if parameter > 0: second to shutdown, if parameter =

-1: cancel shutdown)

RWD Reboot with duration (parameter – seconds to startup after shutdown)

STD Startup after delay (parameter – seconds to startup)

TST Battery test: 1 – test or -1 – cancel test

Table 10. Additionally UPS support order not defined in SEC protocol

Query (3 chars) Response (values separated by commas)

ASHAuto shutdown: 0 – disabled, 1 – enabled or poll. UPS is shut down when output

current is less than or equal to 100 mA.

Table 8. Poll commands

Query (3 characters) Response (values separated by commas)

General description UM0527

28/66

synchronized with the mains, the ACF! signal is set to low and the inverter is switched off.

– Mains mode - in this mode the battery charger is switched on and the UPS is supplied from the mains. The inverter is switched off (INV_A and INV_B are in low state), and ACF! is high.

– Buck mode - in this mode the battery charger is switched on and the UPS is supplied from the mains. The ACH signal is switched on, the inverter is switched off, ACF! is high and the ACL signal is in low state.

– Boost mode - in this mode the battery charger is switched on and the UPS is supplied from the mains. The ACL signal is switched on, the inverter is switched off, ACF! is high and the ACH signal is in low state.

– Standby mode - in this mode the battery charger is switched off and the UPS is supplied from the battery. ACH and ACL are in low state, ACF! is low, CHOFF is high, and the inverter is switched off.

– Standby charge mode - the UPS is in this state when the mains is lower than the low level boost mode. ACH and ACL are in low state, ACF! is high, CHOFF is low, and the inverter is switched off.

– OFF mode - the UPS in this mode is totally switched off. This state is availably only in battery mode after pressing the on/off key longer than 4 seconds.

Additionally the UPS tests the battery. The battery test is done by switching to the inverter mode. During the test the MCU measures UPS output load and battery voltage. If the battery voltage during the test falls below the limit, the battery is failing. The value of the limit depends on time and load current. The test can be forced by the user with a PC. The battery condition can by checked after switching to the inverter mode without forcing the test. A load is necessary to test the battery.

Table 11. Signal state in different modes

Work mode INV_A INV_B ACH ACL ACF! CHOFF SHD

Inverter mode

50 Hz (60 for US version) PWM

signal (less than 40% duty cycle)

50 Hz (60 for US version) PWM

signal (less than 40% duty cycle)

L L L L

Signal is switched to L after rising edge

INV_A or INV_B and switched to H before falling edge INV_A

or INV_B.

Mains mode L L L L HDepends on

battery voltage

H

Buck mode L L L H H H

Boost mode L L H L H H

Standby mode L L L L L H H

Standby charge mode

L L L L HDepends on

battery voltage

H

Off mode L L L L H L L

UM0527 General description

29/66

Figure 12. Main flowchart

1.2.5 ADC

The ADC thread measures values as described below:

Mains voltage - the voltage measured at INP_LEV is needed for calculating the following values:

– RMS - true RMS main voltage which determines the working mode of the UPS: mains mode, buck mode, boost mode or inverter mode. This value is calculated for one period of input voltage.

– SAMPLE - actual sample voltage which is the value needed for calculating RMS. Additionally this value is needed to compare with the predicted value of the mains

General description UM0527

30/66

value. The result of the comparison is used to make the decision to change the working mode from the mains to the inverter.

– Battery voltage - the value measured at AKK_LEV input determines the process of charging and discharging the battery. The value is averaged. During battery operation a signal is needed to indicate a low level of the battery or to protect the battery. In mains mode this value determines the charger's working mode.

In DC/DC converter voltage the value is not averaged and is used to check if “out” is in short-circuit state.

During load current the value is measured at PWR_LEV input. The value is needed for calculating the power of the load (RMS for one period), battery current, overloading.

1.2.6 Communication

The thread of communication is in charge of communication to the PC. This thread completes the packet from the PC and sends answers. Received packets are interpreted in the main loop.

1.2.7 SPI

SPI interface is using for communication to EEPROM memory. SPI needs four signals: MISO, MOSI, SCK and CS. In inactive state all signals are high.

1.2.8 Keyboard

The keyboard contains only one key button connected to BUTTON input active low. The reaction for this signal depends on the working mode:

Table 12. Battery state

Battery voltage BAT_LOW

>=21.75 V (+/- 1%) L

< 21.75 V (+/- 1%) H

Table 13. Working modes

No Working modeState Action Reaction

OUT_REL BUTTON L time OUT_REL ON/OFF

1 Mains/boost/buck mode H Short No change H

2 Mains/boost/buck mode H Long Fall to L H

3 Mains/boost/buck mode L Short Rise to H H

4 Mains/boost/buck mode L Long Rise to H H

5 Inverter mode H Short No change H

6 Inverter mode H Long Fall to L H

7 Inverter mode H Double long Fall to L

UM0527 General description

31/66

Note: Long = 2 s, Short = 20 ms

Additionally the state of OUT_REL is stored in EEPROM memory and restored after a cold start independent of the AUTOSTART setting.

1.2.9 LEDs

LEDs indicates the state of the UPS. The active state is H.

1.2.10 Charger

The battery charger works in two steps: constant current charging and hysteresis constant voltage. In the constant current step, the battery is charging in current mode until the voltage of the battery is lower than 28.2 VDC. In the second step, the charger is switched on when the battery voltage is lower than 26.8 VDC and switched off if the value is higher than 27.8 VDC. The microcontroller controls the process by switching the CHOFF signal.

8 Off L Short L H

9 Off L Long Rise to H H

Table 13. Working modes (continued)

No Working modeState Action Reaction

OUT_REL BUTTON L time OUT_REL ON/OFF

Table 14. LED states

State LED green LED yellow LED red

Mains mode L H H

Battery mode H L H

Low battery in battery mode H 2 Hz 50% duty cycle H

Buck/boost mode 2 Hz 50% duty cycle H H

Battery charging L 2 Hz 50% duty cycle H

Overload (mains) L H 2 Hz 50% duty cycle

Overload ( battery) H L 2 Hz 50% duty cycle

Self test L L H

Fault ( mains) L H L

Fault (battery) H L L

Standby mode H H 0,5 Hz 50% duty cycle

Table 15. Battery charge modes

Step of charge process

Battery voltage

CHOFF Description

Current mode charging< 28,2 V L

Charging mode active only after battery working mode.

>= 28,2 V H Switch to buffered working mode.

General description UM0527

32/66

1.2.11 Inverter

The inverter is controlled by signals generated by the PWM module. In battery working mode the microcontroller generates two signals: INV_A and INV_B. The frequency depends on the firmware version: EU - 50 Hz, US - 60 Hz. The duty cycle is less than 50% and depends on the voltage of the DC/DC converter. The phase of the INV_B signal has to be shifted by a half time period to INV_A. The inverter is controlled by a timer interrupt. The frequency of the interrupt is 32 times higher than the mains frequency: every half-period is divided into 16 steps, and the number of steps is stored in a global variable.

Before any steps the SHD signals are checked and if they are inactive (H), the inverter signals are switched off (rise to H).

Buffered working mode< 26,8 L

>= 27,8 H

Table 15. Battery charge modes (continued)

Step of charge process

Battery voltage

CHOFF Description

Table 16. SHD signals

Step no

SHD Description

1 Fall to L Proper inverter signal falls to L.

2 - 13 LIn any steps the squared value of the output voltage accumulates. The

accumulated value is compared with the nominal RMS output constant, and if it is greater, the SHD signal rises to H.

14 - 15 H

16 HThe accumulated value of the output voltage is cleared, the variable storing a step

is not cleared. The inverter phase is changed to the opposite state.

UM0527 Technical description

33/66

2 Technical description

2.1 Circuit diagram

Figure 13. Circuit diagram

HVDC

INV

_AIN

V_B

INV_OUT1

INV_OUT2

VDD

VD

D

GN

D

VD

D

DC

/AC

Invverter

DCAC12st05v031.sch

HVDC

VA

KK

VDD

SHD

VDCDC

GND

DC

/DC

converter

DCDC12st05v031.sch

VCC

BAT_LOW

ACF!

UPS_OFF!

USB_IN!

TXD

RXD

INP_LEV

PHASE

ACL!

ACH!

ACF

OUT_REL!

OUT_LEV

INV_A

INV_B

SHD

CHOFF

AKK_LEV

VCC

ON/OFF

SW_ONP

PWR_LEV

VDCDC

ACI!

GND

VCCPU

VCC

VCC

ACF1!

Microcontroller

unitM

icrocontroller12st05v031.sch

AC

_IN1

AC

_IN2

ACL!

ACH!

ACF

OUT_REL!

IOUT_2

IOUT_1

AC_1

AC_2

INV_OUT1

INV_OUT2

AC_IN2

AC_IN1

ACI!

GND

VPP

AC_IN1

AC_IN2

AC_1

AC_2

Pow

erR

elays

Relays12st05v031.sch

AC_2

AC_1

VD

D

CH

OFF

VBAT

VD

D

+VO

UT

GND

AC

/DC

Charger

AC

DC

12st05v031.schVCC

BAT_LOW

ACF!

UPS_OFF!

USB_IN!

TXD

RXD

GND

ACF1!

Inerfaceunit

Interface12st05v031.sch

VD

D

VB

AT

+VO

UT

AC_IN2

ON/OFF

SW_ONP

VCC

AC_IN1

GND

VPP

VCCPU

Pow

erSupply

PowerSupply12st05v031.sch

IOUT_1

IOUT_2

PWR_LEV

GND

VCC

Output Current MeasurementOutputCurrent12st05v031.sch

VBAT

AKK_LEV

GNDVCC

Battery

Voltage

BatteryVoltage12st05v031.sch

AC_2

AC_1

OUT_LEV

GND

OutputV

oltageInverter

InverterVoltage12st05v031.sch

AC_IN1

AC_IN2

PHASE

VCC

GN

D

VDD

INP_LEV

InputVoltage

&P

haseM

easurement

InputVoltage12st05v031.sch

AC

_IN1

AC

_IN2

EM

I/RF

IF

ILT

ER

RFIEMI12st05v031.sch

VBAT

VA

KK

GN

D

Battery

Overcurrent

Protection

BatOver12st05v031.sch

AV

RT

RA

FO

INP

UT

OUTPUT

LE

DIN

DIC

AT

ION

SB

UT

TO

N

FUSE

FUSE

VCC

BAT_LOW

ACF!

UPS_OFF!

USB_IN!

TXD

RXD

INP_LEV

PHASE

ACI!

ACF

ACL!

ACH!

OUT_REL!

OUT_LEV

INV_A

INV_B

VDCDC

SHD

CHOFF

VA

KK

VB

AT

AKK_LEV

VCC

ON/OFF

SW_ONP

PWR_LEV

+VO

UT

VD

DV

DD

AC_IN2

AC_IN1

AC_1

AC_2

AC_1

AC_2

AC_IN1

AC_IN2

IOUT_1

IOUT_2

AC

_IN1

AC

_IN2

BA

TT

ER

Y

VDD

HVDC

GN

D

GN

D

GN

D

GN

D

GN

D

GN

D

GN

D

GN

D

GN

D

GN

D

GN

D

GN

D

VCCPU

VCC

VDD

VCC

ACF1!

Technical description UM0527

34/66

Figure 14. DC/AC inverter

DC

/AC

INV

ER

TE

RH

VD

C

GN

D

D1

SMB

YT

01

VD

D

R12

10k

R11

10k

R7

100R

C1

10uF

/25V

R14 10

k

R13

10k

LIN

1H

IN2

VC

C3

GND4

LV

G5

VO

6H

VG

7V

B8

U1

L63

87D

Q1

STP1

2NM

50

Q2

STP1

2NM

50Q

4ST

P12N

M50

Q3

STP1

2NM

50

D2

SMB

YT

01

VD

DC

2

10uF

/25V

LIN

1H

IN2

VC

C3

GND 4

LV

G5

VO

6H

VG

7V

B8

U2

L63

87D

INV

_BIN

V_A

INV

_AIN

V_B

INV

_OU

T2

INV

_OU

T1

R1

100R

R2

100R

C8

100n

FC

1010

0nF

C9 10

0nF

C11 10

0nF

GN

D

GN

D

GN

D

GN

D

R3

0RD

3B

AS1

6

R8

100R

R4

51R

D4

BA

S16

R10

100RR

651

RD

7B

AS1

6

R9

100RR

50R

D6B

AS1

6

ZD

1SM

6T18

A

D5

BA

S16

ZD

2SM

6T18

A

D8

BA

S16

STP2

2NS2

5ZST

P22N

S25Z

STP2

2NS2

5ZST

P22N

S25Z

RA

D1

Hea

tsin

k

RA

D3

Hea

tsin

k

RA

D2

Hea

tsin

k

RA

D4

Hea

tsin

k

C4

10uF

/35V

C3

10uF

/35V

INV

_AIN

V_B

INV

_AIN

V_B

INV_OUT1

INV_OUT2

120V

acM

odel

230V

acM

odel

HV

DC

GN

D GN

D

HV

DC

VD

DV

DD

R17

347

R

R16

410R

D47

STT

H1L

06A

D48

STT

H1L

06A

R17

447

R

R17

210

R

C36

100p

F

GN

D

C35

100p

F

GN

D

C39

100p

FC

4010

0pF

GN

DG

ND

UM0527 Technical description

35/66

Figure 15. DC/DC converter

R60

10R

Q6

STP75NF75

GN

D

D26

STTH8R06D

D28

STTH8R06D

D25

STTH8R06D

D27

STTH8R06D

R53

22k

GN

D

VA

KK

VA

KK

R61

10R

Q7

STP75NF75

GN

D

R55

22k

GN

D

DC

/DC

CO

NV

ER

TE

R

C64

3300

uF/3

5VG

ND

R59

10R

R62

10R

Q8

STP75NF75

Q5

STP75NF75

R56

22k

GN

D R54

22k

GN

D

GN

D

GN

D A1

D

2

CB

12 11

TI1 T

I700

/24/

1v01

C66

470u

F/63

V GN

D

R35

1k3W

D29

STT

H30

2S

D30

STT

H30

2S

C86

1nF1kV

R66

330R2W

C87

330n

F

GN

D

R18

7.5k

GN

D

C34

1nF

C33

4.7n

F GN

D

R28

0R

OU

T_B

OU

T_A

R19

100k

VD

D

R31

36k

GN

D

Vre

f16

Clo

ck4

Ct

5

Rt

6

Dis

ch7

Sync 3

Err

Am

p+2

Err

Am

p-1

Soft

Star

t8

VCC15

VC13

Shut

Dow

n10

GND12O

utB

14

Out

A11

Err

Am

pOut

9

U3

SG35

25A

R17

33R

R36

3.3k

Vre

f

GN

D

Vre

f

R30

5.6k

GN

D

R70 200k

C67

10nF

GN

D

HV

DC

SHD

VD

CD

C

L1

1.5u

H/1

0A

L2

1.5u

H/1

0A

R71

200k

R32

390k

C68 10

nF

GN

DG

ND

GN

D

R69

200k

R68

200k

R29

6.8k

GN

D

R67

330R2W

RA

D10

Hea

tsin

k

RA

D8

Hea

tsin

k

RA

D7

Hea

tsin

k

RA

D9

Hea

tsin

k

RA

D5

Hea

tsin

k

RA

D6

Hea

tsin

k

R34

1k3W

U4

PDT

C11

4ET

R33

47R

C62

10uF

/50V

C32

100uF/25V

C12

100nF

GN

D

GN

DG

ND

C50

100p

F

GN

D

C65

3300

uF/3

5VG

ND

C13

100n

FG

ND

C15

100nF

GN

D

C14

100nF

GN

D

TI7

00/2

4/2v

01

0R

1.5nF1kV

STTH803D

STTH803D STTH803D

STTH803D

100k

100k

100k

100k

100k

30k

120V

acM

odel

230V

acM

odel

VD

CD

C

SHD

HV

DC

VD

DV

DD

VA

KK

VA

KK

GN

DG

ND

C72

100n

F

GN

D

C43

1nF

GN

D

1uF

Technical description UM0527

36/66

Figure 16. Control unit

GN

D

GN

D

C88 22

pF

C89

22pFY

116

MH

z

NC

1

ON/OFF

BUZZER

GN

DVC

CPU

RX

TX

RST!

PHA

SE

INV_A!INV_B!

BU

TT

ON

AC

LA

CF!

PWR

_LE

V

INP_

LE

V

AK

K_L

EV

TX

RX

L6 4.

7uH

L54.

7uH

ACI

VC

CPU

R11

0

4.7k

GN

D

C17

100n

F

GN

D

VD

D3

RE

S2

VSS 1

U8

STM

809L

L4

4.7u

H

L3

4.7u

HG

ND

VC

CPU

RST

!R

ESE

T!

ICC

_CL

KA

CH

VA

RE

F

VSS

A

OU

T_R

EL

R91

10k

RST

!IC

C_S

EL

GN

DIC

C_D

AT

A

ICP

prog

ram

min

gC

-FL

ASH

11

22

B1

BPT

-14

R12

02.

2k

VC

C

AC

I

R11

33.

3kR

114

3.3k

CO

M9

1B1

1C16

2B2

2C15

3B3

3C14

4B4

4C13

5B5

5C12

6B6

6C11

7B7

7C10

8

EU9

UL

N20

03D

AC

F!

INV

_A!

INV

_B!

OU

T_R

EL

!

INV

_AIN

V_B

GN

D

OU

T_R

EL

AC

L!

AC

LA

CH

VC

C

AC

H!

OU

T_L

EV

R11

8

2.2k

R11

9

2.2k

VC

CV

CC

ICC

_DA

TA

ICC

_CL

K

UPS

_OFF

!

LE

DR

LEDG

BA

T_L

OW

CHOFF

VC

C1 3 5 7

2 4 6 89

10

J2 IDC

10

GN

D

VC

CV

CC

D9

BA

S16

BU

TT

ON

YA

RA

GA

R10

933

0R

R10

733

0R

SW_O

NP

R92 10k

VC

CR

111

100R

R10

433

0RR

106

330R

R10

833

0R

LE

DR

LE

DG

R10

533

0R

LE

DY

OSC1OSC2

OSC

1

OSC

2

ICC_SEL

VAREF 13

VSSA 14

MCO/AIN8/PF0 15

BEEP/PF1(HS) 16

OCMP1_A/AIN10/PF4 18

ICAP1_A/PF6(HS) 19

EXTCLK_A/PF7(HS) 20

AIN

12/O

CM

P2_B

/PC

023

AIN

13/O

CM

P1_B

/PC

124

ICA

P2_B

/PC

225

ICA

P1_B

/PC

326

ICC

DA

TA

/MIS

O/P

C4

27A

IN14

/MO

SI/P

C5

28IC

CC

LK

/SC

K/P

C6

29A

IN15

/SS/

PC7

30PA

3(H

S)31

PA4(HS)34

PA6(HS)36 PA7(HS)37Vpp/ICCSEL38 RESET39 Vss_240 OSC241 OSC142 Vdd_243 PE0/TDO44

PE1/

RD

I1

PB0

2

PB3

5

PB4

(HS)

6

PD0/

AIN

07

PD1/

AIN

18

PB1

3

PB2

4

PD2/

AIN

29

PD3/

AIN

310

PD4/

AIN

411

PD5/AIN5 12

PF2(HS) 17

Vdd_0 21

Vss_0 22

Vdd

_132

Vss

_133

PA5(HS)35

U29

ST72

F324

BJ6

T6

LEDY

VDCDC

VC

CPU

GN

D

GNDVCCPU

VCCPU

GND

VAREFVSSA

USB

_IN

!

SHD

TX

DR

XD

INV

_AIN

V_B

AC

L!

AC

H!

AC

F

OU

T_R

EL

!

SW_O

NP

BA

T_L

OW

UPS

_OFF

!PH

ASE

PWR

_LE

VA

KK

_LE

VO

UT

_LE

VIN

P_L

EV

VD

CD

CC

HO

FFU

SB_I

N!

BA

T_L

OW

UPS

_OFF

!PH

ASE

PWR

_LE

VA

KK

_LE

VO

UT

_LE

VIN

P_L

EV

VD

CD

CC

HO

FFU

SB_I

N!

SHD

SHD

1 3 5 7

2 4 6 89

10

J1ID

C10

GN

D

VC

C

R38

1k

R37

1k

S1

Q2

W3

VSS

4

VC

C8

HO

LD

7

C6

D5

U10

M95

020W

MN

6P

MO

SI

MO

SI

ICC

_CL

KSC

K

ICC

_DA

TA

GN

D

MIS

O

VC

CPU

VC

CPU

R39

4.7k

RE

SET

!H

OL

D!

CS!

ACF1!

R93

10k

NC

1G

ND

AC

I!A

CI!

BU

ZZ

ER

GN

D

GN

D

CS! PH

ASE

INV

_B!

INV

_A!

UPS

_OFF

!A

KK

_LE

V

GN

D

C48

100n

F

C37

1nF

C38

1nF

GN

D

ON

/OFF

RST

!U

SB_I

N!

ICC

_CL

K

ICC

_SE

LIC

C_D

AT

A

BU

TT

ON

RX

TX

MO

SI

GN

D

GN

D

GN

DG

ND

GN

D

GN

DC70

10nF

C71

10nF

C73

1nF

C74

10nF

C76

10nF

C77

10nF

GN

DG

ND

GN

DG

ND

C51

100pF

C52

100pF

C53

100pF

C54

100pF

C55

100pF

C56

100pF

GN

DG

ND

GN

DV

CC

PU

C16 10

0nF

ON

/OFF

120V

acM

odel

230V

acM

odel

GN

D

TX

DR

XD

VC

CPU

VC

C

GN

DG

ND

VC

C

VC

CPU

Q15

MM

BT

A42

R86

4.7k

R87

10k

GN

D

AC

F!A

CF!

AC

F1!

AC

F1!

UM0527 Technical description

37/66

Figure 17. Power switches

1

J8 6.3x

0.8

1

J7 6.3x

0.8

1

2

3

4

L8

1:10

00

IOUT_2

IOUT_1

RL

5

RM

84-2

022-

25-1

024

RL

2

RM

85-2

011-

25-1

024

RL

3

RM

85-2

011-

25-1

024

1

J56.

3x0.

8

1J4

6.3x

0.8

D12

BA

S16

D34

BZ

V55

C20

D33

BZ

V55

C20

D11 B

AS1

6

VPP

VPP

VPP

AC

L!

AC

H!

D35

BZ

V55

C20

D14 B

AS1

6O

UT

_RE

L!

RL

4

RM

84-2

012-

25-1

024

INV_OUT1

INV_OUT2

1

J66.

3x0.

8D

13B

AS1

6

D36

BZ

V55

C75V

PP

D10

BA

S16

D31 B

ZV

55C

10

VPP

AC

F

OU

TP

UT

IOU

T_2

IOU

T_1

OU

T_R

EL

!

AC

H!

AC

L!

AC

F

AV

R

AC

_1

AC

_2

AC

_IN

1

AC

_IN

2R

L1

SCL

-1-H

-DPN

O

AC

I!A

CI!

D32

BZ

V55

C10

120V

acM

odel

230V

acM

odel

INV

_OU

T2

INV

_OU

T1

AC

_IN

2

AC

_IN

1

VPP

GN

DG

ND

VPP

AC

_1

AC

_2

tRT

1JN

R15

S70L

t

RT

2JN

R15

S70L

JNR

15S2

R5M

JNR

15S2

R5M

D49

BZ

V55

C75

BL

AC

K

WH

ITE

RE

D

BR

OW

N

BL

UE

Technical description UM0527

38/66

Figure 18. AC/DC battery charger

AC

/DC

BA

TT

ER

YC

HA

RG

ER

GN

D

R94

10k

C10

1

1000uF/50V

GN

D

D38

STPS

8H10

0D

D16

BA

S16

GN

DC99

1nF

500V

R64

10R

R16

10k

GN

D

C20 100nF

GN

D

L11

10uH

/3A

C19100n

F

GN

D

+VO

UT

GN

D

1 4

12 10

6 732

9`

81113T

1

TI5

0/30

v02

R20

100k

VD

D

F11,25

AC

96

100nFX2

VFF

3

VDD8

ZCD5

VFB 1

COMP 2

GD

7

CS

4

GND 6

U11

L65

65

GN

D

GN

D

R13

416

k

R13

275

0k

R13

543

k

R95

10k

GN

D

R138

33k

VB

AT

MA

X+2

8.2V

61

8

7

23

U12

TL431CD

R13

639

k

R11

53.

3k

R57

22k

GN

D

R13

95.

6k

R14

018

0R

Q12

BC

857B

Ove

rvol

tage

Pro

tect

ion

32V

TH

1T

YN

608

GN

D

2

1

3

4

BR

1K

BU

605

Con

trol

volta

geou

tput

Cur

rent

Mod

eC

harg

ing

Vol

tage

Mod

eC

harg

ing

Pout

(max

)=50

WC

harg

erO

utpu

t

VB

AT

R12

9 10R

GN

D

GN

D

Q11

STP5NK90Z

R13

333

R

R15

10k

GN

D

CH

OFF

VB

AT

MIN

+26.

8V

R12

310

0k

D37

STT

H1R

06

R12

712

0k3W

C97

680pF1600V

AC

_2

AC

_1

Q10

STP8

0PF5

5

U6

PDT

C11

4ET

+VO

UT

ZD

3

BZ

X84

C12

C10

0

100uF/50V

GN

D

RA

D11

Hea

tsin

k

2A

R13

175

0k

R13

0

750k

GN

D

R63

10R

R12

410

0k

R12

510

0k

R12

610

0k

GN

D

C98

47uF/50V

C21 100nF

GN

DG

ND

C10

2

1000uF/50V

R12

210

0kG

ND

R65

10R

R12

8

120k3W

RA

D12

Hea

tsin

kR

137

0.68R2W

L9

10uH

/3A

L10

10uH

/3A

C18 100nF

C49

1nF

C79

10nF

C95

47nF

X2

120V

acM

odel

230V

acM

odel

CH

OFF

AC

_1

AC

_2

D15

BA

S16

D17

BA

S16

Q9

STP8

0PF5

5

VB

AT

GN

D

+VO

UT

GN

D

+VO

UT

VD

DV

DD

R52

4.7R

3W

C44

47nF

X2

UM0527 Technical description

39/66

Figure 19. PC interface stage

CO

MC10

3

22uF

/35V

V+

CO

M

R12

12.

2k

C10

9

2.2u

F/50

V

TR

IG2

Q3

R4

CV

olt

5T

HR

6

DIS

7

VCC8 GND 1

U14

TS5

55C

DT

CO

M

C25

100n

F

C23

100n

F

C5

10uF/35V

C22

100n

FR97 10

k

R41

4.7k

V-

D18

BA

S16

CO

M

CO

M

VPC

VPC

OFF

OFF

1 6 2 7 3 8 4 9 5

J14

U21

PC81

7C

U19

PC81

7C

U20

PC81

7C

D19

BA

S16

R45

4.7k

R14

8

2.4k

R14

7

820R

BT

L

AC

FL

OFF

R14

6

4.7k

R14

5

4.7k

R48

4.7k

U22

PC81

7C

U23

PC81

7C

R11

2

100R

R99

20k

R14

4

2.2k

R14

9 6.8k

D20

BA

S16

R14

2

3.3k

V-

V+

TX

D1

RX

D1

CO

M

VC

C

VC

C

GN

D

VC

C

CO

M

CO

M

CO

M

V+

V+

VC

C

CO

M

VPC

BA

T_L

OW

AC

F1!

UPS

_OFF

!

RX

D

TX

D

Q13

BC

846B

Q14

BC

857B

GN

D

AC

F1!

BA

T_L

OW

UPS

_OFF

!

RX

D

TX

D

GN

D

TxD

_USB

GN

D1

GN

D1

C92

22pFC91

22pF

Y2

24M

Hz

USB

DM

GN

D1

1 2 3 4

J13 U

SB-B

GN

D1

C24

100n

F

R43

4.7k

GN

D1

TxD

_USB

USB

RxD

_USB

OSC

OU

TO

SCIN

RST

_USB

USB

DP

USB

VC

C+5

V_U

SB

OSC

OU

T

OSC

IN

+5V

_USB

USB

DM

USB

DP

ICC

CL

KIC

CD

AT

A

VPP

_USB

C6

10uF

/35V

ICC

DA

TA

ICC

CL

KR

ST_U

SBV

PP_U

SB

GN

D1+5

V_U

SB

ICC

DA

TA

ICC

CL

K

R98

10k

VPP

_USB

GN

D1

USB

VC

CR

141

1.5k

US

BS

ocke

t

C57

100pF

C58 100pF

C80

10nF G

ND

1

RST

_USB

RxD

_USB

ICP

RX

D1

TX

D1

AC

FL

BT

L

OFF

U17

PC81

7C

U18

PC81

7C

R44

4.7k

R14

3

4.3k

+5V

_USB

GN

D1

GN

D

R47

4.7k

VC

C

U16

PC81

7CR

42

4.7k

GN

D1

+5V

_USB

R46

4.7k

GN

D

VC

C

GN

D

GN

D

+5V

_USB

INH

6

AD

DR

A11

AD

DR

C9

A1

12

A2

13

B1

2

B2

1

C1

5

C2

3C

4

A14

B15

VCC16

VSS 8

AD

DR

B10

VEE 7

U24

M74

HC

4053

RM

13T

R

VC

C

USB

_IN

!

GN

D1

GN

D1

D40

BA

T54

SD

39

BA

T54

C

D41

BA

T54

A

Vcc

11

Vcc

28

Out

17

In1

2

In2

3

Gnd

14

Out

26

Gnd

25

U13

USB

6B1

Dat

aPr

otec

tion

C26

100n

F

GN

D

C59

100p

F

C60

100p

F

GN

D1

GN

D1

C10

610

0nF

GN

D1

+5V

_USB

GN

D1

GN

D1

VC

C

1357

24689

10J1

5

IDC

10

120V

acM

odel

230V

acM

odel

USB

_IN

!

VC

C

GN

DG

ND

VC

C

NC

10N

C9

NC

8

NC

4

NC

5N

C6

NC

7

R16

510

k

GN

D1R16

610

k

GN

D1R16

710

k

GN

D1R16

810

k

GN

D1R16

910

k

GN

D1R17

010

k

GN

D1R17

110

k

GN

D1

NC

10N

C9

NC

8

NC

4N

C5

NC

6N

C7

VSS

4

USB

DM

23

USB

DP

22

RE

SET

7

OSC

IN3

OSC

OU

T2

PA7

14

PB6

8

PA5

15PA

416

PB3

10

PB2

11

PB1

12PB

013

VD

D1

PA1

19PA

020

USB

VC

C24

VPP

9

PC0

6

VSS

A21

PC1

5

PA3

17PA

218

U15

ST72

F63B

E2M

1SO

24

GN

D1

NC

11N

C12

NC

13

R85

10k

GN

D1R84

10k

GN

D1R40

10k

GN

D1

NC

11N

C12

NC

13

Technical description UM0527

40/66

Figure 20. Power supply

D43

STT

H10

2A

GN

D

ON

/OFF

SW_O

NP

D21

BA

S16

U25

SFH

620A

-2C

112

22nF

VB

AT

GN

D

+VO

UT

C27

100n

F

VD

D

INH

3GND 7

OU

T1

FB5

VR

EF

6

SYN

C2

COMP 4

VCC8

U26

L59

70D

D45

STPS

1L60

A

GN

D

C61

100p

FR

5822

k

L12

330u

H/0

.9A

SW_O

NP

AC

_IN

1

R15

336

k

ON

/OFF

R11

63.

3k

AC

_IN

2

GN

D

R15

2

22R

1W

+5V

dc

VD

Dpo

wer

supp

lyco

ntro

l

C30

100n

F

By

butto

n

C29

100n

F

Vol

tage

From

Bat

tery

C28

100n

F

Vol

tage

From

AC

/DC

Cha

rger

+15V

dc

PO

WE

RS

UP

PL

YV

CC

PU

VC

C

IN3

OU

T2

GND 1

LD

1086

U27

LD

1086

V50

GN

DG

ND

GN

DG

ND

R72

200k

GN

DG

ND

GN

D

U7

PDT

C11

4ET

100k

100k

100k

100k

RA

D13

Hea

tsin

k

R73

200k

R74 200k

R75

200k

C11

01u

F/5

0V

GN

D

C10

422

uF/3

5VC

113

47uF

/25V

C11

447

uF/2

5VC

105

100u

F/35

V

D42

STT

H10

2AD

44STT

H10

2A

L7

4.7u

H

VPP

AC

_IN

1

AC

_IN

2

+VO

UT

VB

AT

VD

D

VC

C

VC

CPU

VPP

GN

DG

ND

+VO

UT

VB

AT

DL

1

LE

D

R17

5

2.2k

GN

DV

CC

1

J17

6.3x

0.8

1

J3 6.3x

0.8

BL

AC

K

BL

AC

K

2

1

3

4

BR

2B

600C

1500

F31,25

A

GN

D

C41

100n

F

GN

D

GN

D

GN

D

C45

10uF

/100

V

C46

47uF

/25V

D51

STT

H10

2A

GN

D

R96

33k

D50

BZ

V55

C22

Q16

BD

X53

C

UM0527 Technical description

41/66

Figure 21. Measurement stages

R155

1k

R158

20R

D23

BAS16

VCC

C84

10nF

GND

R156

47.5k

R157

47.5kC117

1.5nF

R150

6.8k

GND

C1181.5nF

R151

6.8k

R50

4.7k

R51

4.7kVCC

IOUT_1

IOUT_2

PWR_LEV

OUTPUT CURRENT

10

98

U28C

LM324 10R

IOUT_1

IOUT_2

120Vac Model230Vac Model

PWR_LEV

VCC

GNDGND

VCC

R15920k

R25100k

GND GND

VBATVCC

BATTERY VOLTAGE

D24BAS16

AKK_LEV

C63

10uF/50V

12

AKK_LEV

VCC

GNDGND

VCC

VBATVBAT

R83

200k

R82

200kR81

200k

R80

200k

OUT_LEV

AC_2

AC_1

INVERTER OUTPUT VOLTAGE

R16082k

GND

C8510nF

GND

R1612.4k

GND

100k 100k

100k 100k

2k

AC_1

AC_2

OUT_LEV

120Vac M230Vac M

GNDGND

R154

1k

D22

BAS16

VCC

C83

10nF

GND

R21

100k

R22100k

C115

1.5nF

R23

22k

GND C116

1.5nF

R24

22k

R100

10k

R101

10kVCC

INP_LEVAC_IN1

AC_IN2

INPUT VOLTAGE

R77

750k

R76

750k

R79

750k

R78

750kR492k

12

1314

U28D

LM324

360k 360k

360k360k

AC_IN1

AC_IN2

INP_LEV

120Vac Model230Vac Model

R26 1k

R2710k

R10210k

VCC

D46

BAT54

R162

1M

INPUT VOLTAGE PHASE

R10310k

GND

PHASE

R11710k

GND

VDD

VDD

GND

C710uF/35V

C31100nF

GND

3

21

411

U28A

LM324

5

67

U28B

LM324 GND

PHASE

VCC

GNDGND

VCC

VDDVDD

R1762k

GND

GND

GND

VCC

Technical description UM0527

42/66

Figure 22. RFI/EMI filter

Figure 23. Battery overcurrent protection

L

N

C1204,7nF

AC_IN1

AC_IN2

PE R90200k

MA

INS

RFI/EMI FILTER

RV1

JVR-20N471K

R88200k

R89200k

JVR-20N271K

AC_IN1

AC_IN2

1

J9

6.3x0.8

1

J10

6.3x0.8

1

J11

6.3x0.8

C1194,7nF C108

470nF

BROWN

BLUE

YELLOW/GREEN

F2

3,15A 250V

VAKK

VBAT

GND

1

J12

1

J16

VAKK

VBAT

GND

UM0527 Technical description

43/66

2.2 Layout

Figure 24. Top view

Technical description UM0527

44/66

Figure 25. Bottom view

UM0527 Technical description

45/66

2.3 Assembly description

2.3.1 General

Table 17. UPS components

Model

Type 120 Vac version 230 Vac version

Case UPS Ares 700/1000

Power cord 3 x 1.0 mm2

Control panel UPS 500 rack

Battery VRLA type 2 x 7,2 Ah/12 V

AVR transformer AVR 700/ST/120/1 AVR 700/ST/230/1

Switch/fuse ETA 3120-F35G-P7M1-D04X -12 A ETA 3120-F35G-P7M1-D04X -6 A

Output wires Twisted 2x1.0 mm2, 30 cm long

Ground wire 1x1.0 mm2, 30 cm long

Ferrite toroidal core Richco RT250-150-120

Battery fuse 40 A

Motherboard ver. 020

Technical description UM0527

46/66

2.3.2 Electrical

The schematic of the electrical connections is shown in Figure 26.

Figure 26. Electrical connections

2.3.3 Mechanical

The UPS case with assembled front and power cord.

Figure 27. Mechanical view

UM0527 Technical description

47/66

Figure 28. UPS with assembled rear outlets

Figure 29. UPS with front button and indicators

Figure 30. UPS with batteries and battery fuse

Technical description UM0527

48/66

Figure 31. UPS with battery fuse

Figure 32. UPS with AVR transformer

Figure 33. UPS with automatic fuse and power wires

UM0527 Technical description

49/66

Figure 34. UPS with motherboard

Figure 35. UPS fully assembled

Technical description UM0527

50/66

Figure 36. UPS

2.4 Connectors

2.4.1 PCB: mains input

2.4.2 PCB: outlet output

2.4.3 PCB: AVR transformer

Table 18. PCB: mains input

Connector identification Type Description

J9 Tabs Line in L

J10 Tabs Line in N

J11 Tabs PE

Table 19. PCB: outlet output

Connector identification Type Description

J7 Tabs Line out L

J8 Tabs Line out P

Table 20. PCB: AVR transformer

Connector identification Type Description

J4 Tabs Black

J5 Tabs White

J6 Tabs Red

UM0527 Technical description

51/66

2.4.4 PCB: battery

2.4.5 PCB

2.4.6 PCB

2.4.7 PCB

J3 Tabs Brown

J17 Tabs Brown

Table 20. PCB: AVR transformer (continued)

Connector identification Type Description

Table 21. PCB: battery

Connector identification Type Description

-BAT Solder pad Battery -

+BAT Solder pad Battery +

Table 22. PCB

Connector identification Type Description

J2 IDC10 Control panel

Table 23. PCB

Connector identification Type Description

J1 IDC10 ISP for ST72F324J6T6

Table 24. PCB

Connector identification Type Description

J15 IDC10 ISP for ST72F623F2M1

Technical description UM0527

52/66

2.5 Signalization description

2.5.1 Indicators

2.5.2 Sound alarms

2.6 Bill of material

2.6.1 Bill of material for 120 Vac version

Table 25. Indicators

Green LED

(mains)

Yellow LED

(battery)

Red LED

(failure/overload)

Mains mode Solid on Off Off

Battery mode OffSolid on

Flash On (BATLOW)Off

Buck/boost mode Flash on Off Off

Battery charging Solid on Flash on Off

Overload (mains) Solid on Off Flash on

Overload ( battery) Off Solid On Flash on

Self test Solid on Solid on Off

Fault ( mains) Solid on Off Solid on

Fault (battery) Off Solid on Solid on

Standby mode Off OffFlash on

(one per 2 sec.)

Table 26. Sound alarms

State Beeper alarm sequence

Inverter mode 1 beep with 1 s. interval by 15 s. and after this 1 beep with 15 s. interval

Overload 1 beep with 0.3 s. interval

BATLOW continuous signal

State Beeper alarm sequence

Inverter mode 1 beep with 1 s. interval by 15 s. and after this 1 beep with 15 s. interval

Table 27. Bill of material for 120 Vac version

Part type Designator Manufacturer Qty Ordering code

0.68 R 2 W R137 Royal Ω 1 MOR I 2W J 68K T 1 0

0 R R28 Yageo 1 RC 0805 J R-07 0R L

UM0527 Technical description

53/66

0 R R5,R3 Yageo 2 RC 1206 J R-07 0R L

1,25 A F1, F3 ESKA 1 RFTQ 1.25A

1.5 kΩ R141 Yageo 1 RC 0805 J R-07 1K5 L

1.5 nF C115,C118,C116,C117 Yageo 4 CC0805KRX7R9BB152

1.5 µH / 10 A L2,L1 Richco 2 RI-RRH50-15-110

1:1000 L8 DTW 1 1000CT1307C

1 M R162 Yageo 1 RC 0805 J R-07 1M L

1 kΩ 3 W R35,R34 Royal Ω 2 MOR I 3W J 102 T 1 0

1 kΩ R154,R38,R37,R26,R155 Yageo 5 RC 0805 J R-07 1K L

1 nF 1 kV C86 Vishay 1 1DF0D10

1 nF 500 V C99 Vishay 1 1DF0D10

1 nF C38,C34,C49,C73,C43,C37 Yageo 6CC 0805 M R X7R 9 B B

102

1 µF 400 V C87 EVOX Rifa 1 PHE426KF7100J

1 µF / 50 V C110 Kemet 1 C06(4)(1)105K5X5C(2)

2.2 kΩ R119,R175,R118,R121,R120 Yageo 5 RC 0805 J R-07 2K2 L

2.2 µF/50 V C109 Yageo 1 SH050M2R20A5F-0511

2.4 kΩ R148 Yageo 1 RC 0805J R-07 2K4 L

2 kΩ R176,R49,R161 Yageo 3 RC 0805 F R-07 2K L

3,15 A 250 V F2 ESKA 1 RFTQ 3.15A

3.3 kΩ R115,R114,R116,R36,R113 Yageo 5 RC 0805 J R-07 3K3 L

3.3 kΩ R142 Yageo 1 RC 1206 J R-07 3K3 L

4,7 nF C120,C119 Vishay 2 VY2472M49Y5US6*V7

4.3 kΩ R144,R143 Yageo 2 RC 0805 J R-07 4K3 L

4.7 R 3 W R52 Royal Ω 1 MOR I 3W J 47J T 1 0

4.7 kΩR48,R110,R39,R43,R41,R42,

R46,R86,R45,R40,R47,R44,R50, R51

Yageo 14 RC 0805 J R-07 4K7 L

4.7 kΩ R145,R146 Yageo 2 RC 1206 J R-07 4K7 L

4.7 nF C33 Yageo 1CC 0805 M R X7R 9 B B

473

4.7 µH L4,L7,L3,L5,L6 Vishay 5 IMC1210-4.7

5.6 kΩ R30 Yageo 1 RC 0805 F R-07 5K6 L

5.6 kΩ R139 Yageo 1 RC 1206 J R-07 5K6 L

6.3x0.8 J8,J10,J7,J5,J4,J9,J11,J6,J3,J17 Zierick 10 836/836-Tape

6.8 kΩ R150,R149,R29,R151 Yageo 4 RC 0805 F R-07 6K8 L

Table 27. Bill of material for 120 Vac version (continued)

Part type Designator Manufacturer Qty Ordering code

Technical description UM0527

54/66

7.5 kΩ R18 Yageo 1 RC 0805 J R-07 7K5 L

10 R R129,R158 Yageo 2 RC 0805 J R-07 10R L

10 RR64,R61,R60,R62,R59,R63,R65,

R164,R172Yageo 9 RC 1206 J R-07 10R L

10 kΩ

R91,R97,R87,R117,R95,R170,R171,R94,R27,R102,R101,R100,R

103,R166,R92,R96,R165,R98, R169,R93,R168,R167

Yageo 22 RC 0805 J R-07 10K L

10 kΩ R11,R12,R16,R15,R14,R13 Yageo 6 RC 1206 J R-07 10K L

10 nFC80,C79,C76,C85,C68,C81,C67,

C77,C84,C83,C70,C71,C74Yageo 13

CC 0805 M K X7R 9 B N 103

10 µF/25 V C2,C1 Yageo 2 SB025M0010A5F-0611

10 µF/35 V C3,C4,C7,C6,C5 Yageo 5 SH035M0010A5F-0511

10 µF/50 V C63,C62 Yageo 2 SH050M0010A5F-0511

10 µF/100 V C45 Yageo 1 SH035M0010A5F-0511

12 MHz Y2 CQ 1 12.00M HC49-S

12 V ZD3 Fairchild 1 BZX84C12

16 MHz Y1 CQ 1 16.00M HC49-S

16 kΩ R134 Yageo 1 RC 0805 J R-07 16K L

20 kΩ R159 Yageo 1 RC 0805 F R-07 20K L

22 R 1 W R152 Royal Ω 1 MOR I 1W J 220 T 1 0

22 kΩ R23,R57,R24,R58,R55,R56,R54,R53

Yageo 8 RC 0805 F R-07 22K L

22 nF C112 Yageo 1CC 0805 M K Y5V 9 B N

223

22 pF C91,C90,C88,C89,C92 Yageo 5 CC0805MKX7R9BN220

22 µF/35 V C103,C104 Yageo 2 SH035M0022A5F-0511

10 µH/3 A L10,L11,L9 Feryster 3 DSz-8/10/3-V

30 kΩ R31 Yageo 1 RC 0805 F R-07 30k L

33 R R17 Yageo 1 RC 0805 J R-07 33R L

33 R R133 Yageo 1 RC 1206 J R-07 33R L

33 kΩ R99,R138, R96 Yageo 3 RC 0805 J R-07 33K L

36 kΩ R153 Yageo 1 RC 1206 J R - 07 36K L

39 kΩ R136 Yageo 1 RC 0805 J R-07 39K L

43 kΩ R135 Yageo 1 RC 0805 J R-07 43K L

47.5 kΩ R157,R156 Yageo 2 RC 0805 F R-07 47K5 L

47 R R33 Yageo 1 RC 0805 J R-07 47R L

Table 27. Bill of material for 120 Vac version (continued)

Part type Designator Manufacturer Qty Ordering code

UM0527 Technical description

55/66

47 R R173,R174 Yageo 2 RC 1206 J R-07 47R L

47 nF X2 C95 Arcotronics 1 MKPX2-47NR15

47 µF/25 V C113,C114, C46 Yageo 2 SH025M0047A5F-0511

47 µF/50 V C98 Yageo 1 SC050M0047A5F-0611

51 R R6,R4 Yageo 2 RC 1206 J R-07 51R L

82 kΩ R160 Yageo 1 RC 0805 F R-07 82K L

100 R R111,R112 Yageo 2 RC 0805 J R-07 100R L

100 R R2,R8,R1,R9,R10,R7 Yageo 6 RC1206JR-07100RL

100 kΩ R122,R21,R20,R25,R22,R32, R19

Yageo 7 RC 0805 J R-07 100K L

100 kΩR123,R68,R126,R71,R69,R70,R124,R125,R80,R72,R73,R83,R81

,R82,R75,R74Yageo 16 RC 1206 J R-07 100K L

100 nF

C20,C19,C12,C14,C15,C13,C11,C18,C21,C30,C29,C28,C8,C72,C

23,C25,C16,C17,C24,C22,C9, C10,C26,C48,C27,C31,C41

Yageo 27CC 0805 K R X7R 9 B B

104

100 nF X2 C96 Arcotronics 1 MKPY2-100NR15

100 pFC50,C57,C58,C54,C55,C53,C51,C52,C56,C35,C36,C39,C61,C40,

C59,C60Yageo 16

CC 0805 M R X7R 9 B B 101

100 µF/25 V C32 Yageo 1 SH050M0010A5F-0611

100 µF/35 V C105 Yageo 1 SC035M0100A5F-0811

100 µF/50 V C100 Yageo 1 SC050M0100A5F-0815

120 k 3 W R128,R127 Royal Ω 2 MOR I 3W J 124 T 1 0

180 R R140 Yageo 1 RC 0805 J R-07 180R L

200 kΩ R88,R89,R90 Yageo 3 RC 1206 F R-07 200K L

330 R 2 W R67,R66 Royal Ω 2 MOR I 2W J 331 T 1 0

330 RR107,R106,R108,R105,R109,

R104Yageo 6 RC 0805 J R-07 330R L

330 µH / 0.5 A L12 Feryster 1 DSz-9/330/0,9-V

360 kΩ R78,R76,R77,R79 Yageo 4 RC 1206 F R-07 360K L

470 nF C106 Yageo 1CC 0805 M K X7R 9 B N

474

470 nF C108 Arcotronics 1 MKPX2-470NR22

470 µF/63 V C66 Rubycon 1 63 YXG 470 M CA 16X20

680 pF 1600 V C97 WIMA 1 FKP1 680/1600

750 kΩ R131,R130,R132 Yageo 3 RC 1206 J R-07 750K L

Table 27. Bill of material for 120 Vac version (continued)

Part type Designator Manufacturer Qty Ordering code

Technical description UM0527

56/66

820 R R147 Yageo 1 RC 0805 J R-07 820R L

1000 µF/50 V C101,C102 Rubycon 2 50 YXG 1000 M CA 16X25

3300 µF/35 V C65,C64 Yageo 2 SC035M3300A5F-1836

BAS16D15,D5,D6,D22,D7,D24,D21,D19,D14,D11,D23,D18,D13,D3,D20,

D9,D4,D17,D16,D12,D10,D8Fairchild 22 BAS16

BAT54 D46 Vishay 1 BAT54-GS18

BAT54A D41 Vishay 1 BAT54A-GS18

BAT54C D39 Vishay 1 BAT54C-GS18

BAT54S D40 Vishay 1 BAT54S-GS18

BC846B Q13Infineon

technologies1 BC846B

BC857B Q12,Q14 Fairchild 2 BC857B

BDX53C Q16 STMicroelectronics 1 BDX53C

BPT-14 B1Bestar electronics

industry1 BPT-14

B600C1500 BR2 DC Components 1 B600C1500

BZV55C10 D32,D31Central

semiconductor, Microsemi

2 BZV55C10

BZV55C20 D34,D33Central

semiconductor, Microsemi

2 BZV55C20

BZV55C20 D35Central

semiconductor, Microsemi

1 BZV55C20

BZV55C22 D50Central

semiconductor, Microsemi

1 BZV55C22

BZV55C75 D49,D36Central

semiconductor, Microsemi

2 BZV55C75

Heatsink RAD5,RAD6 Fideltronik 2 40X53X20 (MUP831)

HeatsinkRAD13,RAD10,RAD9,RAD7,

RAD8Fideltronik 5 LM-317 (MUPS190)

HeatsinkRAD12,RAD4,RAD1,RAD3,

RAD11,RAD2Fischer elektronik 6 SK145 37,5 STS TO220

IDC10 J15,J1 Molex 2 MX-5332-10GS1

IDC10 J2 Molex 1 MX-5332-10GS1

JNR15S2R5M RT1,RT2 Joyin 2 JNR15S2R5M

Table 27. Bill of material for 120 Vac version (continued)

Part type Designator Manufacturer Qty Ordering code

UM0527 Technical description

57/66

JVR-20N271K RV1 Joyin 1 JVR-20N271K

KBU605 BR1Taiwan

semiconductor1 70-070-65 Elfa

L5970D U26 ST 1 L5970D013TR

L6387D U1,U2 STMicroelectronics 2 L6387D

L6565 U11 STMicroelectronics 1 L6565D

LD1086V50 U27 STMicroelectronics 1 LD1086V50

LED DL1 Kingbrigth 1 L-934LSRD

LM324 U28 STMicroelectronics 1 LM324D

M74HC4053RM13TR U24 STMicroelectronics 1 M74HC4053RM13TR

M95020MN6P U10 STMicroelectronics 1 M95020MN6P

MMBTA42 Q15 STMicroelectronics 1 MMBTA42

PC817CU17,U23,U16,U18,U19,U21,U22,

U20Sharp 8 PC817C

PDTC114ET U7,U6,U4 Philips 3 PDTC114ET

RM84-2012-25-1024 RL4 Relpol 1 RM84-2012-25-1024

RM84-2022-25-1024 RL5 Relpol 1 RM84-2022-25-1024

RM85-2011-25-1024 RL2,RL3 Relpol 2 RM85-2011-25-1024

SCL-1-H-DPNO RL1 Song Chuan 1SCL-1-H-DPNO (24V coil

voltage)

SFH620A-2 U25 Vishay 1 SFH620A-2

SG3525A U3 STMicroelectronics 1 SG3525AP

SM6T18A ZD2,ZD1 STMicroelectronics 2 SM6T18A

SMBYT01 D2,D1 STMicroelectronics 2 SMBYT01

ST72F324J6T6 U29 STMicroelectronics 1 ST72F324J6T6

ST72F623F2M1 U15 STMicroelectronics 1 ST72F623F2M1

STM809L U8 STMicroelectronics 1 STM809LWX6F

STP5NK90Z Q11 STMicroelectronics 1 STP5NK90Z

STP22NS25Z Q3,Q4,Q1,Q2 STMicroelectronics 4 STP22NS25Z

STP75NF75 Q8,Q6,Q5,Q7 STMicroelectronics 4 STP75NF75

STP80PF55 Q10,Q9 STMicroelectronics 2 STP80PF55

STPS1L60A D45 STMicroelectronics 1 STPS1L60A

STPS8H100D D38 STMicroelectronics 1 STPS8H100D

STTA106 D37 STMicroelectronics 1 STTA106U

STTH1L06A D48,D47 STMicroelectronics 2 STTH1L06A

STTH102A D43,D42,D44, D51 STMicroelectronics 4 STTH102A

Table 27. Bill of material for 120 Vac version (continued)

Part type Designator Manufacturer Qty Ordering code

Technical description UM0527

58/66

2.6.2 Bill of material for 230 Vac version

STTH302S D30,D29 STMicroelectronics 2 STTH302S

STTH803D D28,D25,D26,D27 STMicroelectronics 4 STTH803D

TI50/30v01 T1 Sigma 1 TI50/30v01

TI700/24/2v01 TI1 Sigma 1 TI700/24/2v01

TL431CD U12 Fairchild 1 TL431CD

TS555CDT U14 STMicroelectronics 1 TS555CDT

TYN608 TH1 STMicroelectronics 1 TYN608RG

ULN2003D U9 STMicroelectronics 1 ULN2003D

USB6B1 U13 STMicroelectronics 1 USB6B1RL

USB-B J13 JST 1 UBB-4R-D10T-1

Table 27. Bill of material for 120 Vac version (continued)

Part type Designator Manufacturer Qty Ordering code

Table 28. Bill of material for 230 Vac version

Part type Designator Manufacturer Qty Ordering code

0.68 R 2 W R137 Royal Ω 1 MOR I 2W J 68K T 1 0

0 R R28 Yageo 1 RC 0805 J R-07 0R L

0 R R3,R5 Yageo 2 RC 1206 J R-07 0R L

1,25 A F1, F3 ESKA 1 RFTQ 1.25A

1.5 kΩ R141 Yageo 1 RC 0805 J R-07 1K5 L

1.5 nF C117,C116,C115,C118 Yageo 4 CC0805KRX7R9BB152

1.5 µH / 10 A L2,L1 Richco 2 RI-RRH50-15-110

1:1000 L8 DTW 1 1000CT1307C

1 M R162 Yageo 1 RC 0805 J R-07 1M L

1 kΩ 3 W R34,R35 Royal Ω 2 MOR I 3W J 102 T 1 0

1 kΩ R26,R155,R38,R37,R154 Yageo 5 RC 0805 J R-07 1K L

1 nF 1 kV C86 Vishay 1 1DF0D10

1 nF 500 V C99 Vishay 1 1DF0D10

1 nF C43,C37,C49,C38,C34,C73 Yageo 6CC 0805 M R X7R 9 B B

102

1 µF / 50 V C110 Kemet 1 C06(4)(1)105K5X5C(2)

2.2 kΩ R119,R118,R120,R175,R121 Yageo 5 RC 0805 J R-07 2K2 L

2.2 µF/50 V C109 Yageo 1 SH050M2R20A5F-0511

2.4 kΩ R148,R161 Yageo 2 RC 0805J R-07 2K4 L

2 kΩ R49,R176 Yageo 2 RC 0805 F R-07 2K L

UM0527 Technical description

59/66

3,15 A 250 V F2 ESKA 1 RFTQ 3.15A

3.3 kΩ R115,R116,R114,R36,R113 Yageo 5 RC 0805 J R-07 3K3 L

3.3 kΩ R142 Yageo 1 RC 1206 J R-07 3K3 L

4,7 nF C119,C120 Vishay 2 VY2472M49Y5US6*V7

4.3 kΩ R143,R144 Yageo 2 RC 0805 J R-07 4K3 L

4.7 R 3 W R52 Royal Ω 1 MOR I 3W J 47J T 1 0

4.7 kΩR48,R40,R41,R86,R110,R45,

R43,R47,R44,R39,R46,R42,R51,R50

Yageo 14 RC 0805 J R-07 4K7 L

4.7 kΩ R145,R146 Yageo 2 RC 1206 J R-07 4K7 L

4.7 nF C33 Yageo 1CC 0805 M R X7R 9 B B

473

4.7 µH L7,L4,L3,L6,L5 Vishay 5 IMC1210-4.7

5.6 kΩ R30 Yageo 1 RC 0805 F R-07 5K6 L

5.6 kΩ R139 Yageo 1 RC 1206 J R-07 5K6 L

6.3x0.8J8,J10,J7,J5,J4,J9,J11,J6, J3,

J17Zierick 10 836/836-Tape

6.8 kΩ R149,R151,R29,R150 Yageo 4 RC 0805 J R-07 6K8 L

7.5 kΩ R18 Yageo 1 RC 0805 J R-07 7K5 L

10 R R129 Yageo 1 RC 0805 J R-07 10R L

10 RR172,R60,R63,R164,R59,R62,

R64,R61,R65Yageo 9 RC 1206 J R-07 10R L

10 kΩ

R166,R171,R91,R117,R102, R103,R169,R167,R93,R168,

R170,R165,R98,R95,R87,R96, R100,R92,R97,R27,R94,R101

Yageo 22 RC 0805 J R-07 10K L

10 kΩ R16,R12,R13,R15,R11,R14 Yageo 6 RC 1206 J R-07 10K L

10 nFC79,C76,C77,C74,C70,C71,C67,

C85,C81,C84,C83,C68,C80Yageo 13

CC 0805 M R X7R 9 B B 103

10 µF/25 V C2,C1 Yageo 2 SB025M0010A5F-0611

10 µF/35 V C4,C6,C3,C7,C5 Yageo 5 SH035M0010A5F-0511

10 µF/50 V C62,C63 Yageo 2 SC050M0010A5F-0511

10 µF/100 V C45 Yageo 1 SH035M0010A5F-0511

10 µH/3 A L10,L11,L9 Feryster 3 DSz-8/10/3-V

12 MHz Y2 CQ 1 12.00M HC49-S

16 MHz Y1 CQ 1 16.00M HC49-S

16 kΩ R134 Yageo 1 RC 0805 J R-07 16K L

20 R R158 Yageo 1 RC 0805 F R-07 20R L

Table 28. Bill of material for 230 Vac version (continued)

Part type Designator Manufacturer Qty Ordering code

Technical description UM0527

60/66

20 kΩ R159 Yageo 1 RC 0805 F R-07 20K L

22 R 1 W R152 Royal Ω 1 MOR I 1W J 220 T 1 0

22 kΩ R24,R55,R53,R57,R56,R58,R54,R23

Yageo 8 RC 0805 F R-07 22K L

22 nF C112 Yageo 1CC 0805 M K Y5V 9 B N

223

22 pF C90,C92,C91,C89,C88 Yageo 5 CC0805MKX7R9BN220

22 µF/35 V C104,C103 Yageo 2 SH035M0022A5F-0511

33 R R17 Yageo 1 RC 0805 J R-07 33R L

33 R R133 Yageo 1 RC 1206 J R-07 33R L

33 kΩ R138,R99, R96 Yageo 3 RC 0805 J R-07 33K L

36 kΩ R153,R31 Yageo 2 RC 1206 J R - 07 36K L

39 kΩ R136 Yageo 1 RC 0805 J R-07 39K L

43 kΩ R135 Yageo 1 RC 0805 J R-07 43K L

47.5 kΩ R156,R157 Yageo 2 RC 0805 F R-07 47K5 L

47 R R33 Yageo 1 RC 0805 J R-07 47R L

47 R R173,R174 Yageo 2 RC 1206 J R-07 47R L

47 nF X2 C95 Arcotronics 1 MKPX2-47NR15

47 µF/25 V C114,C113, C46 Yageo 3 SH025M0047A5F-0511

47 µF/50 V C98 Yageo 1 SC050M0047A5F-0611

51 R R4,R6 Yageo 2 RC 1206 J R-07 51R L

82 kΩ R160 Yageo 1 RC 0805 F R-07 82K L

100 R R112,R111 Yageo 2 RC 0805 J R-07 100R L

100 R R7,R1,R2,R8,R9,R10 Yageo 6 RC 1206 J R-07 100R L

100 kΩ R20,R25,R21,R122,R22,R19 Yageo 6 RC 0805 J R-07 100K L

100 kΩ R123,R125,R126,R124 Yageo 4 RC 1206 J R-07 100K L

100 nF

C26,C18,C30,C29,C48,C21,C25,C28,C27,C24,C22,C23,C20,C11,C12,C15,C16,C13,C19,C17,C72,

C14,C31,C9,C10,C8, C41

Yageo 27CC 0805 M K X7R 9 B N

104

100 nF X2 C96 Arcotronics 1 MKPY2-100NR15

100 pFC40,C52,C61,C35,C51,C59,C39,C60,C55,C57,C50,C56,C54,C36,

C58,C53Yageo 16

CC 0805 M K X7R 9 B N 101

100 µF/25 V C32 Yageo 1 SH050M0010A5F-0611

100 µF/35 V C105 Yageo 1 SC035M0100A5F-0811

100 µF/50 V C100 Yageo 1 SC050M0100A5F-0815

Table 28. Bill of material for 230 Vac version (continued)

Part type Designator Manufacturer Qty Ordering code

UM0527 Technical description

61/66

120 kΩ 3 W R128,R127 Royal Ω 2 MOR I 3W J 124 T 1 0

180 R R140 Yageo 1 RC 0805 J R-07 180R L

200 kΩR82,R83,R89,R80,R90,R81,R88,R70,R72,R68,R69,R73,R71,R75,

R74Yageo 15 RC 1206 F R-07 200K L

330 R 2 W R66,R67 Royal Ω 2 MOR I 2W J 331 T 1 0

330 RR108,R104,R106,R105,R109,R1

07Yageo 6 RC 0805 J R-07 330R L

330 nF C87 EVOX Rifa 1 PHE426MD6330J

330 µH / 0.9 A L12 Feryster 1 DSz-9/330/0,9-V

390 kΩ R32 Yageo 1 RC 0805 F R-07 390K L

470 nF C106 Yageo 1CC 0805 M K X7R 9 B N

474

470 nF C108 Arcotronics 1 MKPX2-470NR22

470 µF/63 V C66 Rubycon 1 63 YXG 470 M CA 16X20

680 pF 1600 V C97 WIMA 1 FKP1 680/1600

750 kΩ R78,R76,R79,R77,R130,R131, R132

Yageo 7 RC 1206 F R-07 750K L

820 R R147 Yageo 1 RC 0805 J R-07 820R L

1000 µF/50 V C101,C102 Rubycon 2 50 YXG 1000 M CA 16X25

3300 µF/35 V C64,C65 Yageo 2 SC035M3300A5F-1836

BAS16D15,D7,D16,D6,D4,D17,D11,D18,D23,D24,D20,D14,D13,D10,D19

,D5,D22,D9,D12,D3,D8,D21Fairchild 22 BAS16

BAT54 D46 Vishay 1 BAT54-GS18

BAT54A D41 Vishay 1 BAT54A-GS18

BAT54C D39 Vishay 1 BAT54C-GS18

BAT54S D40 Vishay 1 BAT54S-GS18

BC846B Q13Infineon

technologies1 BC846B

BC857B Q12,Q14 Fairchild 2 BC857B

BDX53C Q16 STMicroelectronics 1 BDX53C

BPT-14 B1Bestar electronics

industry1 BPT-14

B600C1500 BR2 DC Components 1 B600C1500

BZV55C10 D32,D31Central

semiconductor , microsemi

2 BZV55C10

Table 28. Bill of material for 230 Vac version (continued)

Part type Designator Manufacturer Qty Ordering code

Technical description UM0527

62/66

BZV55C20 D35Central

semiconductor, microsemi

1 BZV55C20

BZV55C20 D34,D33Central

semiconductor, microsemi

2 BZV55C20

BZV55C22 D50Central

semiconductor, microsemi

1 BZV55C22

BZV55C75 D36,D49Central

semiconductor, microsemi

2 BZV55C75

BZX84C12 ZD3 Fairchild 1 BZX84C12

Heatsink RAD5,RAD6 Fideltronik 2 40X53X20 (MUP831)

HeatsinkRAD10,RAD9,RAD13,RAD8,RA

D7Fideltronik 5 LM-317 (MUPS190)

HeatsinkRAD11,RAD3,RAD1,RAD4,RAD

2,RAD12Fischer Elektronik 6 SK145 37,5 STS TO220

IDC10 J1,J15 Molex 2 MX-5332-10GS1

IDC10 J2 Molex 1 MX-5332-10GS1

JNR15S70L RT1,RT2 Joyin 2 JNR15S70L

JVR-20N471K RV1 Joyin 1 JVR-20N471K

KBU605 BR1Taiwan

Semiconductor1 KBU605

L5970D U26 STMicroelectronics 1 L5970D013TR

L6387D U1,U2 STMicroelectronics 2 L6387D

L6565 U11 STMicroelectronics 1 L6565D

LD1086V50 U27 STMicroelectronics 1 LD1086V50

LED DL1 Kingbrigth 1 L-934LSRD

LM324 U28 STMicroelectronics 1 LM324D

M74HC4053RM13TR U24 STMicroelectronics 1 M74HC4053RM13TR

M95020MN6P U10 STMicroelectronics 1 M95020MN6P

MMBTA42 Q15 STMicroelectronics 1 MMBTA42

PC817CU21,U18,U16,U19,U22,U17,U20,

U23Sharp 8 PC817C

PDTC114ET U6,U4,U7 Philips 3 PDTC114ET

RM84-2012-25-1024 RL4 Relpol 1 RM84-2012-25-1024

RM84-2022-25-1024 RL5 Relpol 1 RM84-2022-25-1024

RM85-2011-25-1024 RL2,RL3 Relpol 2 RM85-2011-25-1024

Table 28. Bill of material for 230 Vac version (continued)

Part type Designator Manufacturer Qty Ordering code

UM0527 Technical description

63/66

SCL-1-H-DPNO RL1 Song Chuan 1 SCL-1-H-DPNO 24V

SFH620A-2 U25 Vishay 1 SFH620A-2

SG3525A U3 STMicroelectronics 1 SG3525AP

SM6T18A ZD1,ZD2 STMicroelectronics 2 SM6T18A

SMBYT01 D2,D1 STMicroelectronics 2 SMBYT01

ST72F324J6T6 U29 STMicroelectronics 1 ST72F324J6T6

ST72F623F2M1 U15 STMicroelectronics 1 ST72F623F2M1

STM809L U8 STMicroelectronics 1 STM809LWX6F

STP5NK90Z Q11 STMicroelectronics 1 STP5NK90Z

STP12NM50 Q1,Q2,Q4,Q3 STMicroelectronics 4 STP12NM50

STP75NF75 Q6,Q5,Q8,Q7 STMicroelectronics 4 STP75NF75

STP80PF55 Q10,Q9 STMicroelectronics 2 STP80PF55

STPS1L60A D45 STMicroelectronics 1 STPS1L60A

STPS8H100D D38 STMicroelectronics 1 STPS8H100D

STTA106 D37 STMicroelectronics 1 STTA106U

STTH1L06A D48,D47 STMicroelectronics 2 STTH1L06A

STTH8R06D D27,D26,D25,D28 STMicroelectronics 4 STTH8R06D

STTH102A D43,D42,D44, D51 STMicroelectronics 4 STTH102A

STTH302S D29,D30 STMicroelectronics 2 STTH302S

TI50/30v01 T1 Sigma 1 TI50/30v01

TI700/24/1v01 TI1 Sigma 1 TI700/24/1/v01

TL431CD U12 Fairchild 1 TL431CD

TS555CDT U14 STMicroelectronics 1 TS555CDT

TYN608 TH1 STMicroelectronics 1 TYN608RG

ULN2003D U9 STMicroelectronics 1 ULN2003D

USB6B1 U13 STMicroelectronics 1 USB6B1RL

USB-B J13 JST 1 UBB-4R-D10T-1

Table 28. Bill of material for 230 Vac version (continued)

Part type Designator Manufacturer Qty Ordering code

Technical specifications UM0527

64/66

3 Technical specifications

Table 29. Technical specifications

Parameters 120 V/60 Hz model 230 V/50 Hz model

Output rating power 700 VA/450 W 700 VA/450 W

Input voltage 83 Vac±3% - 153 Vac±3% 160 Vac±3% - 294 Vac±3%

Input frequency 60 Hz 50 Hz

Power factor 0.6 lagging at 700 VA 0.6 lagging at 700 VA

Operating modes input voltage

Mains mode 96 – 138 Vac±3 Vac 184 - 265 Vac±3 Vac

Boost mode 83 – 100 Vac ± 3 Vac 160 - 191 Vac ± 3 Vac

Buck mode 134 - 153 Vac±3 Vac 257 - 294 Vac±3 Vac

Inverter mode0 - 87 Vac±3 Vac

153 - 175 Vac±3 Vac0 -167 Vac±3 Vac

286-300 Vac±3 Vac

Output voltage

Mains mode 96 – 138Vac±3Vac 184 - 265 Vac ± 3 Vac

Boost mode 96 – 115Vac±3Vac 184 - 220 Vac ± 3 Vac

Buck mode 117 - 133Vac±3Vac 224 - 256 Vac ± 3 Vac

Inverter mode

Battery voltage 28 – 20 Vdc±0.4 Vdc

120Vac +5/-10% 230 Vac +5/-10%

Output frequency 60Hz±0.1Hz 50 Hz ± 0.1Hz

Transfer time class 3 [EN62040-3] class 3 [EN62040-3]

Typical 4 ms 4 ms

Maximum 10 ms 10 ms

Inverter output waveform Quasi-sine (square wave) Quasi-sine (square wave)

Inverter output waveform THD 70% 70%

Backup time (full load) 2.5 – 3 min 2.5 - 3 min

Battery 2 pcs.

Type Maintenance free Lead Acid Maintenance free Lead Acid

Nominal voltage 12 V 12 V

Capacity 7.2 Ah 7.2 Ah

Recharge time

(after full discharge)

max 8 h for 90% recharge

max 4 h for 80% recharge

max 8h for 90% recharge

max 4h for 80% recharge

BATLOW level 22 – 21.5 Vdc 22 – 21.5Vdc

Battery protection level

(UPS output shutdown)

18 – 19 Vdc for load >100 W

20 – 21 Vdc for load <100 W

18 – 19 Vdc for load >100 W

20 – 21 Vdc for load <100 W

UM0527 Revision history

65/66

4 Revision history

Battery recharge Two recharge steps Two recharge steps

First stepConstant current

(Imax=2.16 A, Vmax=28.2 Vdc)Constant current

(Imax=2.16 A, Vmax=28.2 Vdc)

Second step Hysteresis constant voltage

V=27.3 Vdc ± 0.5 VdcHysteresis constant voltage

V=27.3 Vdc ± 0.5 Vdc

Table 29. Technical specifications (continued)

Parameters 120 V/60 Hz model 230 V/50 Hz model

Table 30. Document revision history

Date Revision Changes

18-Jul-2008 1 Initial release

UM0527

66/66

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