THD Compensation

[Exclusive_Gates]

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%. 

[lcgse88]

HI,

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.

Luis G.

[Exclusive_Gates]

Can you send me a photo of the sine wave you see. The wave I see doesn't seem to have a 72% THD

[lcgse88]

Hello,

Take a look at the picture. 

[Exclusive_Gates]

Ok. I get the same. Does that seem to warrant a THD of 72%? If so, how can I filter it to make it better?