Simple chrgr with 1 transistor:
Simple Lion chrgr:
Dual batt lion chrgr:
Mini inverter 2:
Using this circuit you can convert the 12Vdc in to the 220VAc. In this circuit 4047 is use to generate the square wave of 50hz and amplify the current and then amplify the voltage by using the step transformer.
The basic formula is P=VI and between input output of the transformer we have Power input = Power output For example if we want a 220W output at 220V then we need 1A at the output. Then at the input we must have at least 18.3V at 12V because: 12V*18.3 = 220v*. So you have to wind the step up transformer 12v to 220v but input winding must be capable to bear 20A.
C1 100uf 25V Electrolytic C2,C3 0.01uf 25V Ceramic Disc C4 0.01uf 1KV Ceramic Disc
R1 1K 1/4W R2 2.7K 1/4W Q1 IRF510/540 MOSFET U1 TLC555 Timer IC
T1 16V 300mA Transformer LAMP 14W Fluorescent Lamp MISC Board, Wire, Heatsink For Q1