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Gate drive circuit with a voltage stabilizer and a method

  • US 9,590,619 B2
  • Filed: 02/25/2015
  • Issued: 03/07/2017
  • Est. Priority Date: 02/25/2014
  • Status: Active Grant
First Claim
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1. A gate drive circuit with an active gate voltage stabilizer, comprising:

  • means for creating a bipolar voltage to a gate of an IGB power transistor; and

    means for compensating for Miller currents of the IGB power transistor, the means for compensating being formed by a switching element connected in series with a capacitor between the gate and a supply voltage input;

    wherein a switching voltage of the switching element is controlled by two resistances; and

    wherein one of the two resistances is connected between a source and gate of the switching element, and is an NTC-resistor.

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