A vehicle powertrain includes an IGBT, having a Kelvin emitter and a mirror current sense, configured to energize an inductance, a first switch configured to draw a current from a gate of the IGBT at a rate based on a resistance engaged by the first switch while a current of the inductance exceeds a threshold, and a second switch configured to increase the rate in response to the current being less than the threshold. In one embodiment, the current is based on a filtered voltage across a resistor connected between the mirror current sense and chassis ground while the Kelvin emitter is connected to chassis ground. In another embodiment, the current is based on a filtered voltage across a resistor connected between the mirror current sense and the Kelvin emitter.


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    Title :

    IGBT gate drive with active turnoff to reduce switching loss


    Contributors:
    ZHOU YAN (author) / CHEN LIHUA (author) / YANG SHUITAO (author) / XU FAN (author)

    Publication date :

    2017-12-05


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    H02P CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS , Steuern oder Regeln von elektrischen Motoren, elektrischen Generatoren, dynamoelektrischen Umformern / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / H02M APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS , Anlagen zur Umformung von Wechselstrom in Wechselstrom, von Wechselstrom in Gleichstrom oder umgekehrt, oder von Gleichstrom in Gleichstrom und zur Verwendung in Netzen oder ähnlichen Stromversorgungssystemen / H03K PULSE TECHNIQUE , Impulstechnik



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