Uninterruptible power supply with LED indication

591

07:29:34

Uninterruptible power supply with battery recharging ability. Indication is built around opamp that monitors 12V input DC voltage (blue LED is on). Capacitor emulates a rechargeable battery and charged from 12VDC power supply. When 12VDC supply is disrupted, circuit switches source to the battery so the red LED turns on. Circuit runs on a battery till main 12VDC supply is back or until battery is fully drained out.

published 12 years ago

UncleRick

12 years ago

That might be "Uninterruptible" power supply. Of course I could be wrong.

techplanet

12 years ago

UncleRick, you are right. Changed. Thx

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