1. UPS for Semiconductor Equipment Jun. 29, 2012

2. 1 / 15 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

3. 2 / 15 ◆ 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?

4. 3 / 15 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. ※ Inverter : DC -> AC UPS charger DC Power AC Power Application charger Inverter

5. 4 / 15 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. UPS Application AC Power chargerBattery Inverter

6. 5 / 15 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. UPS Application AC Power chargerBattery Inverter

7. 6 / 15 EDLC Vs. Secondary Battery ItemsEDLCSecondary Battery Discharging2~5 sec. (100% Load)5 ~ 30 min. ChargingWithin secondsWithin hours Energy Density (Wh/kg)0.8 ~ 1020 ~ 150 Power Density (W/kg)500 ~ 40050 ~ 300 Operatng Temp. -20 ℃ ∼ 70 ℃ 0 ℃ ∼ 60 ℃ Response TimeWithin 2msec.1sec. Efficiency 90 ∼ 95%75 ∼ 85% Cycle Life>100,000<1,000 Environment Low Power Consumption Low CO2 Industrial Waste Regulation => Disposal Cost OthersNo Noise Noise => System Engineere Needed

8. 7 / 15 Application : Industrial (Power assistant/backup) Peak Power Assist (UPS) Advantage of improving battery’s life & size-down

9. 8 / 15 ◆ Short-term UPS (1 – 5 seconds backup) ◊ Markets -. UPS for Semi-conductor production line Telecommunication base station Medical equipment etc.

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