This is the simple 12 to 120 Volt Inverter Circuit Diagram. Ever needed a low power 120volt AC power source for your car, van or
truck? Well this circuit should do the trick for you. It will supply 15
watts of AC power to a device. It should power lamps, shavers, small
stereos and small appliances. If you draw to much power the circuit will
shut down all by itself.
The output of this circuit is a square wave so
there may be some noticeable hum on audio units plugged into it. To
reduce some of the hum increase the value of the output capacitor which
is at .47uf now. That transistor in the circuit are high power PNP
transistors. Radio Shack part number 276-2025 are good ones to use or
TIP32. The transformer is a 24 volt 2 amp center tapped secondary Radio
Shack part number 273-1512 or equivalent.
12 to 120 Volt Inverter Circuit Diagram