Answer Posted / mehboob k. panjwani

UPS stands for Uninterrupted Power Supply.
Main Parts are:
1.Transformer, used to convert 220V AC to 12V DC or vise versa
2. Circuit, used to control the monitoring and running funtions.
3. Transitors, used to smoothen the supply from AC to DC
4. Diods, to help in charging the battery
5. Rectifier, It converts AC to DC Supply.

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