DC to AC sine solar inverter IGBT 200V to 120V 500W schematic circuit diagram schema

The purpose of a DC to AC inverter with IGBT transistors is to convert DC voltage to a pure sinusoidal output voltage in applications such as UPS, solar inverter and frequency converter.
 

This demo board is designed to operate without fan up to 500W.

200V, 3A DC power supply
20V, 100 mA DC power supply
120V/500W load bank such as resistors, light bulbs or a portable heater

Operation:
Always start the system by applying power to the +20V power supply prior to applying
+200V DC bus. With a 120V/500W resistive load connected, the output will be a
nominal 120V/60 Hz AC sinusoidal voltage as shown in Figure 3. This figure also shows
the output gate voltages across each IGBT showing 60 Hz commutation and 20 kHz sine
PWM signals for low and high side devices, respectively.