This is 2N3055 Inverter circuit ,It Converts 12VDC to 220VAC Output 180W. Use easy Circuit Square Wave Oscillator Generator 50Hz. So Boost up Current High by 2N3055 Drive Transformer output 220V 50HZ
IC 555 Inverter Circuit Diagram – DIY Electronics Projects
Simple 100watt inverter circuit using IC555 inverter 220v AC
transistors - Design a 100 watt inverter, but why when the circuit is connected to the power supply sparks out? - Electrical Engineering Stack Exchange