battery eliminator circuit


Posted on Feb 5, 2014

Here is the circuit diagram of a battery eliminator circuit that can be used as a replacement for 9V PP3 batteries. The circuit given here can be used to power any device that operates from a 9V battery. The transformer T1 steps down the mains voltage and bridge D1 performs the job of rectification. Capacitor C1 is a filter. IC LM317T is the regul


battery eliminator circuit
Click here to download the full size of the above Circuit.

ator here. The value of R1, R2 and R3 are so selected that the output voltage of IC1 will be steady 9 volts.




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