Simple DC to AC inverter circuit

 This inverter uses power field effect transistors as the inverter device. Powered by car battery. Therefore, the input voltage is 12 Vdc . The output voltage is 100V AC. However, the input and output voltages are not limited to this. You can use any voltage. They rely on transformers for use. The waveform output is a square wave. As a rule of thumb, this circuit has about 100W power. 
The circuit must be fused as the oscillator stops when excessive input current flows.