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Power Supplies and UPS

Power Supplies and UPS. Some peripheral devices have an AC adapter. Converts alternating current (AC,115 to 120 volts) to direct current (DC, 5 to 12 volts). Power supplies. What is a power supply?. Power Problems. No Power Power turn on and shut down after a few minutes

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Power Supplies and UPS

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  1. Power Supplies and UPS COMP 364 Prof Jess Role@ UEAB 2006

  2. Some peripheral devices have an AC adapter Converts alternating current (AC,115 to 120 volts) to direct current (DC, 5 to 12 volts) Power supplies What is a power supply? COMP 364 Prof Jess Role@ UEAB 2006

  3. Power Problems • No Power • Power turn on and shut down after a few minutes • Protection fuse always blow • No +12 or -12 volts output • No +5 or -5 volts output • Fan running no output COMP 364 Prof Jess Role@ UEAB 2006

  4. Power Management • Idling time • Monitor auto turn off • Hard drive shutdown • System Auto Shutdown COMP 364 Prof Jess Role@ UEAB 2006

  5. Troubleshooting the Power Supply COMP 364 Prof Jess Role@ UEAB 2006

  6. Switcher Section COMP 364 Prof Jess Role@ UEAB 2006

  7. Basic Low Voltage Circuit COMP 364 Prof Jess Role@ UEAB 2006

  8. Regulated IC outputs COMP 364 Prof Jess Role@ UEAB 2006

  9. Power Supply Connectors COMP 364 Prof Jess Role@ UEAB 2006

  10. Basic Power Supply Semiconductor devices COMP 364 Prof Jess Role@ UEAB 2006

  11. Batteries • Type • Ni Cad • Lithium • Mercury • Time duration • 2 hrs • 3 hrs • 4 hrs • 35 hrs COMP 364 Prof Jess Role@ UEAB 2006

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