Grid Electrode Basic Driving Circuit

Published:2011/8/18 3:20:00 Author: | Keyword: Grid, Electrode, Basic, Driving | From:SeekIC

The power MOSFET's grid electrode driving circuit has different kinds of types according to the differences of the switching circuit. The picture shows the single-tube and dual-tube switching circuit. The picture (a) is a basic switching circuit composed of the power MOSFET whose the source electrode is connected to the ground. Its load could be resistance, inductance, switching transformer or DC motor and so on. The picture (b) is the swithing circuit composed of two power MOSFET and the VF1 and VF2 would be connected and disconnected working at the same time. Because there are clamp diodes VD1 and VD2 connecting in the power circuit, so the power MOSFET's withstand voltage needn't have the surplus capacity.



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