Position: Index > Bridge Circuit >

Composed of VMOS H bridge motor positive and negative drive

2016-05-15 11:32  
Declaration:We aim to transmit more information by carrying articles . We will delete it soon, if we are involved in the problems of article content ,copyright or other problems.


Composed of VMOS H bridge motor positive and negative drive circuit
Composed of VMOS H bridge motor positive and negative drive circuit
In the dual power optocoupler drive circuit scheme,use the output ofoptocoupler to direct-drive the MOS pipe, it would make the output waveform have a serious distortion,in particular the falling edge of the waveform is relatively slow, mainly caused by the capacitance between G and S of the MOS pipe. When the output waveform is high, charge to the capacitance between the G and S so that the wave increases slightly slow; when output waveform becomes low,the capacitance between G and S discharges through Rl to make the G of MOS pipe's potential decreasesvery slowly ,it leads to the the falling edge of the waveform has a serious distortion.