IGBT drive circuit being cable to generate turn-off reverse voltage

IGBT drive circuit being cable to generate turn-off reverse voltage

CN
  • CN 202,424,487 U
  • Filed: 10/10/2011
  • Issued: 09/05/2012
  • Est. Priority Date: 10/10/2011
  • Status: Active Grant
First Claim
Patent Images

1. one kind can produce the IGBT drive circuit that turn-offs negative pressure;

  • It is characterized in that;

    Comprise drive signal shaping amplification circuit, IGBT pipe, reduction voltage circuit and charging circuit;

    The external drive signal of the signal input part of said drive signal shaping amplification circuit, the anodal and power supply ground of the power input external power supply of drive signal shaping amplification circuit;

    Described reduction voltage circuit comprises capacitance and voltage stabilizing didoe, and described capacitance is parallelly connected with voltage stabilizing didoe, and the negative electrode of said voltage stabilizing didoe connects the signal output part of drive signal shaping amplification circuit, and anode connects the gate pole of IGBT pipe;

    The emitter of IGBT pipe connects described power supply ground, the gate pole of the termination IGBT pipe of charging circuit, the emitter of another termination IGBT pipe.

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