Digital intelligent driving device of high-power IGBT (insulated gate bipolar translator)
A drive device and high-power technology, applied in the direction of output power conversion device, emergency protection circuit device, electrical components, etc., can solve the problems of limited drive capacity, difficult realization, Miller effect, poor soft shutdown technology, etc., to achieve Fast triggering, good protection effect, reliable effect of IGBT short-circuit fault protection
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[0024] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.
[0025] Such as figure 1The high-power IGBT digital intelligent driving device shown includes a DC / DC conversion circuit 1 and a CPLD logic control module 2, and also includes an active clamping feedback module 8, a de-protection overcurrent feedback module 9 and a two-stage di / dt detection module 10. The output end of the DC / DC conversion circuit 1 is connected to the undervoltage protection module 3, the output end of the undervoltage protection module 3 is connected to the CPLD logic control module 2, and the input end of the CPLD logic control module 2 is connected to a PWM pulse width modulator 14. The output terminal of the CPLD logic control module 2 is connected to the variable gate resistance module 4, and the two output terminals of the variable gate resistance module 4 are respectively connected to the resistor R1 and the resistor R2...
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