I made this circuit.It will charge a 12V/1.2Ah battery & it will keep power when AC loss condition.
The problem is when I speedily switch ON & OFF the switch, the 7812 regulator drops down the voltage to 1V. So every time I have to power down the circuit & restart.When I remove the 100uF capacitor & speedily switch ON & OFF the switch it works nicely.
I checked without loading the battery as well.What made the 7812 to low the voltage?
The problem is when I speedily switch ON & OFF the switch, the 7812 regulator drops down the voltage to 1V. So every time I have to power down the circuit & restart.When I remove the 100uF capacitor & speedily switch ON & OFF the switch it works nicely.
I checked without loading the battery as well.What made the 7812 to low the voltage?