Full hardware pure sinusoidal inverter circuit diagram

Photocoupler

After nearly 2 weeks of hard work, I finally came up with the first pure sinusoidal inverter in my life.

I just screwed up the radiator by the rice, and the radiator let my father help with the processing........ The awful radiator is hard, and it also ruined a bit of Dad... .

Layout....with drawing pictures........
System Block Diagram:

This is the full circuit diagram (the SPWM board and the H-bridge are changed):



This is my detailed full hardware pure hardware inverter DIY tutorial, we refer to:
By the way, some pictures

D-pole waveform with 100W load, no spikes, power tube without heat dissipation, no pressure, god machine, no-load 60mA, SPWM board and drive is 150mA, AC filter and dummy load (this machine is empty, square wave, no way ) consumes 280mA, the whole machine is no load 0.51A

Output waveform:

Play with the root of the motor.....

Finally, the output is: no load 238V, with 60W load 234V, 300W229V.......