High Frequency Inverter Board / Module 500 W Dc To Ac, Input=12 Vdc 18 Vdc, Output 18 Vac And 220 Vac Or 380 Vac At 19.85k Hz, Using Sg3525 A Regulating Pulse Width Modulator, Directly Suitable For Resistive Loads Otherwise Use As 1 St Stage In An Inverter.