Published:2011/4/21 3:51:00 Author:Nicole | Keyword: Voltage type drive | From:SeekIC
The drive circuit is as shown in figure (a), it is suitable for low frequency and low power drive, when the control singal Ui is high level, VT1 turns on, the switch tube(IGBT) controlled by output voltage Uo turns on too; when the control singal Ui is low level, VT2 turns on, the switch tube(IGBT) controlled by output voltage Uo turns off. The drive circuit is as shown in figure (b), it adopts push pull circuit composed of FET, the working principle is the same as figure (a). The high frequency peak value drive current of this circuit can reach more than 10A, it is suitable for high power IGBT devices.
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