Grid Electrode Isolated Driving Circuit For Half-Bridge Circuit

Published:2011/8/23 23:39:00 Author:Robert | Keyword: Grid, Electrode, Isolated, Driving, Half-Bridge | From:SeekIC

The picture shows the grid electrode isolated driving circuit for half-bridge circuit. The input signal A and B are the signals provided by the switching power integrated controller. And when they are added on the transformer, the waveform's duty cycle would be below 50%. The pulse transformer T1 and T2's each winding is separated. Its primary side has two series windings. Its secondary side has two parallel windings. For reducing the VD3~VD6's positive voltage drop, it should use the schottky diode. But if it uses the general diode, that would also be OK. The driving circuit's output port is connected to the driving power MOSFET's grid electrode (G) and source electrode (S).



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