You want to convert 12vdc to 220vac, 300w. Then this schematic diagram will helps you. It can be used for home appliances, lamps, electric radio, mobile charger etc.
Part Total Qty.Description



C1, C22 = 68 uf, 25 V Tantalum Capacitor


R1, R22 =10 Ohm, 5 Watt Resistor


R3, R42 =180 Ohm, 1 Watt Resistor


D1, D22 =HEP 154 Silicon Diode


Q1, Q22 =2N3055 NPN Transistor (see "Notes")


T11 =24V, Center Tapped Transformer (see "Notes")


MISC1 =Wire, Case, Receptical (For Output)