Here is the schematic diagram for a 20 Watt driver. I developed this circuit in 1985, and used it to build a lamp that found much use both as camping light and as emergency light during the then-frequent power outages. Read More
This is AC 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 . Read Source
This circuit will allow you to operate small devices like laptop computers inside your automobile without an expensive automobile power supply. Read More