Uninterruptible Power Supply (UPS)
From SciSalvage
Contents |
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Useful Components
- AC power inverter circuit - sustained usage will require extensive modification of the heat sinks.
- Battery - lead acid type
- AC Relay - 240 volt or higher
- Power Transistors IGBT/MOSFET - 50 volt or higher, 15 amps or higher. A large UPS will probably contain "block" type.
- Power Transformer, large step down for charging the battery, small step up transformer which is part of the inverter.
- Overload Circuit Breaker
- Ceramic, Polypropylene, and/or Electrolytic Capacitors
- Heat sinks and/or heat blocks
- Pezio Speaker
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Dismantling Tips
Dismantling is fairly straightforward on PC type UPS devices however larger "Mains" type power supplies may require special tools.
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Safety Points
Lethal electrical voltages can be maintained in the capacitors, capacitors should be drained or can be shorted with an insulated screwdriver.
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Where to Find
Small PC Uninterruptible Power Supplies can be found at PC repair shops, PC recycling businesses, and in business refuse. Larger UPS might be found in a scrapyard.
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