How to Modify output Frequency of a Husky 400 Watt Inverter

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The output signal right out of the inverter is square before and after the mod, the mod only changed the freq. but when using a LC circuit on the ouput we can get a sine wave just like I did.

I used a series LC circuit. the LC combo was tuned for 650 Hz, and you can see that the wave is better at that frea, then when I run it at 420hz, the wave is distorted. I didn't have big enouph caps to tune it for the 420hz.

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test

It worked

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Ok, I was able to mod the husky inverter to output frequencies from 40Hz to 650Hz.

Using a transformer and a some caps we can also get a pretty good sine wave.

Very Nice work.  The main point here is you set out to do something and you were successful.  It may not have a large fequency range for tuning but what the heck I think its a way cool idea.  Nice work again!.
vw

[Hidden]

The output signal right out of the inverter is square before and after the mod, the mod only changed the freq. but when using a LC circuit on the ouput we can get a sine wave just like I did.

I used a series LC circuit. the LC combo was tuned for 650 Hz, and you can see that the wave is better at that frea, then when I run it at 420hz, the wave is distorted. I didn't have big enouph caps to tune it for the 420hz.

Please post the schematic for series LC circuit you used to clean up the sine wave.

Thanks in advance.