A gate drive circuit drives a control terminal of a power transistor and comprises: a drive terminal for electrically coupling the control terminal, a first reference source, a first switch arranged between the first reference source and the control terminal, a switch control circuit and a measurement circuit. The first switch is switched-on to turn-off the power transistor. The switch control circuit switches-off the first switch during a transition period to a fully off-state. The measurement circuit outputs a control signal to the switch control circuit in response to a value of a voltage at the control terminal measured when a discharge current flowing to the drive terminal has been reduced to a predetermined threshold, for switching-on the first switch if the measured value is smaller than a threshold voltage.


    Access

    Download


    Export, share and cite



    Title :

    Gate drive circuit and a method for controlling a power transistor


    Contributors:

    Publication date :

    2016-07-19


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    H03G CONTROL OF AMPLIFICATION , Verstärkungsregelung / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / H02P CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS , Steuern oder Regeln von elektrischen Motoren, elektrischen Generatoren, dynamoelektrischen Umformern / H03K PULSE TECHNIQUE , Impulstechnik



    GATE DRIVE CIRCUIT AND A METHOD FOR CONTROLLING A POWER TRANSISTOR

    SICARD THIERRY / PERRUCHOUD PHILIPPE | European Patent Office | 2015

    Free access

    Gate drive circuit, vehicle and active heating control method of gate drive circuit

    WANG MINGQIANG / HE ZHAOPENG / XU WEI | European Patent Office | 2023

    Free access

    GATE DRIVE CIRCUIT, VEHICLE AND ACTIVE HEATING CONTROL METHOD FOR GATE DRIVE CIRCUIT

    WANG MINGQIANG / HE ZHAOPENG / XU WEI | European Patent Office | 2024

    Free access

    Gate drive circuit, power conversion apparatus, and railway vehicle

    AKIYAMA SATORU / FUJITA RYUUSEI | European Patent Office | 2019

    Free access

    GATE DRIVE CIRCUIT, POWER CONVERSION APPARATUS, AND RAILWAY VEHICLE

    AKIYAMA SATORU / FUJITA RYUUSEI | European Patent Office | 2018

    Free access