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I have made an inverter circuit and my output waveform appears to be perfectly sinusiodal. However my THD is 72% which doesnt seem to represent my waveform. I need help either filtering the harmonics within my circuit to bring my THD below 10%.
I've ran the circuit and I'm not seeing a perfect sine signal, and I'm pretty sure that's where the issue relies. My recommendation on this is to re-built your circuit in order to get a better sine signal.