500w modified sine wave inverter

Posted on Feb 7, 2014

The MOSFET`s could be in parallel pairs for even more power. Just give each its own 470 © gate resistor and a 22k © from each gate to source. The large 1000 µF capacitor and 47 © resistor used to clean up the voltage spikes coming from the transformer centre tap into the positive rail and protect the PIC from them.

500w modified sine wave inverter
Click here to download the full size of the above Circuit.

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