UPSfor Semiconductor Equipment

Jun. 29, 2012

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Contents

1. What is UPS?

2. UPS System Overview

- UPS with EDLC - UPS with Battery - UPS with EDLC + Battery

3. EDLC Vs. Secondary Battery

※ Application

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◆ What is UPS?

- UPS : Uninterruptible Power System (or Supply)

- When the power supply (source) was shut off, UPS

provide the back-up power for memory and support

the operating power in short term

◆ Why does UPS need?

- High-tech semiconductor equipment can be damaged

or make errors by Instant Voltage Drop, Momentary

Power Failure & Harmonic Distortion etc.

- The stability of power source for high-precision device

or equipment such as office automation, facility

automation. telecommunication system etc. is

essential.

What is UPS?

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UPS System - 1/3

◆ Case #1: Applying only EDLC without Battery

- Function : Short-term Back-up power for momnetray power failure (within seconds)

- Application :

* High-precision Equipment

=> To prevent errors caused by unstable power source (AC110V or AC220V)

* High-precision Medical Equipment, High-tech Semiconductor Equipment

=> To support the power source for data back-up and prevent instant voltage drop when power failure within seconds.

- Operation :

* EDLC Provides DC Power directly to application (DC Power Source) or to inverter (AC Power Source) when power failure.

EDLC충전기 인버터

AC상용전원 전원사용 시스템

EDLC충전기

DC상용전원 전원사용 시스템

※ Inverter : DC -> AC

UPS UPS

charger

DC Power AC PowerApplication Application

charger Inverter

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UPS System - 2/3

◆ Case #2: Applying only Battery withour EDLC

- Function : Long-term Back-up power of main power source when power failure

- Application :

* General Industrial Equipment (Long-term main power source Needed)

=> To support main power source

=> The application doesn’t need rapid response time for power back-up.

- Operation :

* Battery provides DC Power to inverter when power failure.

배터리충전기 인버터

AC상용전원 전원사용 시스템

UPS

ApplicationAC Power

charger Battery Inverter

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UPS System – 3/3

◆ Case #3: Applying EDLC & Battery

- Function : Short-term Back-up power for momnetray power failure (within seconds) & Long-term Back-up power of main power source when power failure (Hybrid Function)

- Operation :

* Momentary power failure -> EDLC provides DC power with high speed response time to inverter.

* Continued power failure -> Battery provides DC power to Inverter for long time.

배터리충전기 인버터

AC상용전원 전원사용 시스템

EDLC

UPS

ApplicationAC Power

charger Battery Inverter

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EDLC Vs. Secondary Battery

Items EDLCSecondary Battery

Discharging2~5 sec. (100% Load)

5 ~ 30 min.

Charging Within seconds Within hours

Energy Density (Wh/kg)

0.8 ~ 10 20 ~ 150

Power Density (W/kg)

500 ~ 400 50 ~ 300

Operatng Temp. -20℃ ∼ 70℃ 0℃ ∼ 60℃

Response Time Within 2msec. 1sec.

Efficiency 90 ∼ 95% 75 ∼ 85%

Cycle Life >100,000 <1,000

EnvironmentLow Power Consumption Low CO2

Industrial Waste Regulation=> Disposal Cost

Others No NoiseNoise=> System Engineere Needed

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Application : Industrial (Power assistant/backup)

• Peak Power Assist (UPS)

• Advantage of improving battery’s life & size-down

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◆ Short-term UPS (1 – 5 seconds backup)

◊ Markets

-. UPS for Semi-conductor production line

Telecommunication base station

Medical equipment etc.

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