Simple Ups Diagram. The backup battery takes up the load without spikes or delay when the mains power gets interrupted. If you search you will get i have download it about 2 moth ago but do not remember from which site.
Here the simple mini ups circuit diagram. Online ups block diagram here the block diagram of online ups is given below. How it works first the ac power 220v is entered to through input of transformer t1 to reduce voltage as 9vac.
The online ups is also called as double conversion online uninterruptible power supply.
Ups are widely used in 3rd world countries like in india philipines. As you see in the above diagram there are nine blocks are shown. The ups can deliver up to 2a current. This circuit can provide an uninterrupted power supply ups to operate 12v 9v and 5v dc powered instruments at up to 1a current.