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info help needed for ups

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shariq

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i want to design a ups,gets charged by 220v AC n gives 12v(AC) output,wot battery should i use? ur tips will be appreciated in designing this circuit.
 

How many watts is your ups?
 

Hi,
It depends on the power rating of your UPS (VA or Watts) and how long you want backup and the maximum restriction imposed by the battery charging circuit.

Tahmid.
 

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