Power Supply Unit for ATCA – based Piezo Power Supply Unit for ATCA – based Piezo

Compensation System

The research leading to these results has received funding from the European Commission under the FP7 Research Infrastructures project

EuCARD, grant agreement no. 227579.

Power Supply Unit for ATCA –

based Piezo Compensation System

K. Przygoda

T. Poźniak, D. Makowski, T. Kozak, M. Wiśniewski, A. NapieralskiDepartment of Microelectronics and Computer ScienceDepartment of Microelectronics and Computer Science

Technical University of Łódź, Poland

M. GreckiDeutsches Elektronen-Synchrotron, DESY

Hamburg, Germany

17th International Conference

Mixed Design of Integrated Circuits and Systems

Wrocław, 24-26 June 2010

Agenda

• Introduction

• Piezo compensation system at FLASH

• ATCA standard overview

• ATCA – based piezo compensation system

• Power supply unit prototype tests• Power supply unit prototype tests

• Summury and conclusions

3K. Przygoda, Dept. of Microelectronics and Computer Science, TUL

FLASH Accelerator

ACC1

ACC2/3 ACC4/5/6/7

Main parameters: (Free Electron LASer in Hamburg):

• length ~ 315 m,• beam energy→ wavelength; E ≈ 1,2 GeV→ λe ≈ (44 ÷ 6) nm,

• 4 RF stations: ACC1; ACC2/3; ACC4/5; ACC6/7,

• RF stations powered by 5 ÷ 10 MW klystrons,

• 7 accelerating modules composed of 8 superconducting cavities each,

• RF pulse duration of 1.3 ms, typical repetition rate fRP= 10 Hz.

4K. Przygoda, Dept. of Microelectronics and Computer Science, TUL

Supercondcuting Resonant Cavity

Main parameters:

5K. Przygoda, Dept. of Microelectronics and Computer Science, TUL

• TESLA technology,

• 1 m length, made of pure Niobium,

• resonance frequency fo ≈ 1,3 GHz,

• mechanical resonance frequency fm ≈ 200÷300 Hz,

• loaded qaulity factor QL ≈ 3·106,

• typical accelerating field gradient 25 MV/m.

Lorentz Force Detuning

400 600 800 1000 1200 1400 1600 1800-300

-200

-100

0

100

200

300

time [us]

det

un

ing

[H

z]

cav1@acc6

25 MV/m

31 MV/m

33 MV/m

6K. Przygoda, Dept. of Microelectronics and Computer Science, TUL

Compensation with Piezo Tuners

500 1000 1500 2000-300

-200

-100

0

100

200

300c av1@ ac c 6

tim e[us ]

detu

nin

g[H

z]

500 1000 1500 2000-300

-200

-100

0

100

200

300c av2@ ac c 6

tim e[us ]

detu

nin

g[H

z]

500 1000 1500 2000-300

-200

-100

0

100

200

300c av3@ ac c 6

t im e[us ]

detu

nin

g[H

z]

500 1000 1500 2000-300

-200

-100

0

100

200

300c av4@ ac c 6

t im e[us ]

detu

nin

g[H

z]

7K. Przygoda, Dept. of Microelectronics and Computer Science, TUL

Piezo Compensation System at FLASH

Piezo Control Board

ADC

DWN

ACC3 ACC5ACC6

(double piezos)

CPU SimconDSP

Piezo Control Board

DOOCS

Probe

Forward

VME

DAC PZS

Piezo drivers

ACC7

(double piezos)

ACC1

(double piezos)

SimconDSP

5x

2x

2x2x

8K. Przygoda, Dept. of Microelectronics and Computer Science, TUL

Piezo Control BoardDOOCS

External PWR Supply

ATCA Standard Overview (1)

AMC

ATCA ATCA Chase

RTM

9K. Przygoda, Dept. of Microelectronics and Computer Science, TUL

AMC – Advanced Mezzanine Card

ATCA – Advanced Telecommunications

Computing Architecture

RTM – Rear Transition Module

Main advantages:

• inteligent patform management

• modular design,

• hot swapping,

• redundancy for the most crucial circuits,

• single relatively high voltage power bus,

• backplane connections.

ATCA Standard Overview (2)Floating

Fastener

ATCA

leds

Alignment

PinsAlignment

Feature

Zone 3 connectors

Alignment

Feature, Keying

10K. Przygoda, Dept. of Microelectronics and Computer Science, TUL

Face

Plate

Handle

Feature, Keying

Zone 2 data

transports

Zone 1 power

connector

Backplane

ATCA-based LLRF Control System

11K. Przygoda, Dept. of Microelectronics and Computer Science, TUL

Piezo Controller configuration for ATCA LLRF:

• 8 slots crate (can take for fabric interfaces slots 5÷8),

• 14 slots crate (can take for fabric interfaces slots 5÷14),

ATCA-based Piezo Compensation System

FPGA

PHYPHY

ZO

NE

3Z

ON

E2

GbE

ADC

RIO

SWITCH

TMPx16

PZD1 PZD8

PZD9 PZD16…

…

… …DAC

16

xPZ

S

ADC

ZO

NE

3 16

xPZ

D

Voltage

Curremt

sense

12K. Przygoda, Dept. of Microelectronics and Computer Science, TUL

LDO

DC/DCIPMC

DC/DCZ

ON

E2

ZO

NE

1LDO

MMC DB

G

IPMB-0 – redundant I2C bus between Shelf Manager and IPMC on ATCA Carrier board

IPMB-L– local I2C bus between IPMC on ATCA Carrier board and external modules, i. e. RTM

IPMC – Intelligent Platform Management Controller

MMC – Module Management Controller

Control Loop

Piezo

Compensation

IQ Probe

IQ Forward

RIO/GbE

FPGA

Piezo

Actuator

RF Probes

LLRF

13K. Przygoda, Dept. of Microelectronics and Computer Science, TUL

Compensation

IQ Reflected

Piezo

Sensor

Actuator

FPGA

Prototype Power Supply Unit

Parameter PRM

P048F048T24AL

VTM

V048F480T006

BCM

B048F48T30

Vin [V] 48 (36÷75) 48 (26÷55) 48 (38÷55)

V [V] 48 (26÷55) 48 (26÷55) 48 (38÷55)

BLACK

BOX-48V ±100V

14K. Przygoda, Dept. of Microelectronics and Computer Science, TUL

Vout [V] 48 (26÷55) 48 (26÷55) 48 (38÷55)

Pout [W] 240 336 300

efficiency [%] 96 96 >96

PRM-VTM Tests

15K. Przygoda, Dept. of Microelectronics and Computer Science, TUL

-48V100V

-100V

BCM Tests

16K. Przygoda, Dept. of Microelectronics and Computer Science, TUL

+100V

-100V

-48V

Power Supply Tests

17K. Przygoda, Dept. of Microelectronics and Computer Science, TUL

8-channel Piezo driver

loaded with 5 µF capacitance

Conclusions and Outlook

• Concept design accomplished (100%)

(16xdriving/16xsensing/integrated current-voltage-

temperature-monitorings/integrated bipolar power

supply),

• Electrical schematics accomplished (100%),

18K. Przygoda, Dept. of Microelectronics and Computer Science, TUL

• PCB layouts accomplished (100%),

• Fabrication, laboratory tests and FLASH

commisioning scheduled for the end of the year

• Possible migrations to µTCA are considered

Thanks for Your Attention

19K. Przygoda, Dept. of Microelectronics and Computer Science, TUL

Power Supply Unit for ATCA – based Piezo Power Supply Unit for ATCA – based Piezo

Compensation System

We acknowledge funding from the European Commissionunder the FP7 Research Infrastructures project EuCARD, grant agreement no. 227579.