A vehicle auxiliary power supply device includes a resonant inverter circuit 1 that converts DC input into a desired AC voltage and outputs the AC voltage and a control unit 10. The control unit 10 includes a resonance-time managing unit 13 managing resonance time of current flowing in the resonant inverter circuit 1, a gate-off-command generating unit 12 detecting overcurrent flowing in the resonant inverter circuit 1 based on detected current of a current detector CT1, and, when the overcurrent is detected, generating, based on detected current of the current detector CT1 and resonance time managed by the resonance-time managing unit 13, a gate-off command to turn off switching elements HGU1 and HGV2 included in the resonant inverter circuit 1 after the elapse of time after which current flowing in the switching elements HGU1 and HGV2 becomes zero for the first time, and a gate-signal generating unit 14 generating a gate signal that controls the switching elements HGU1 and HGV2 to be turned off when the gate-off command is input.


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    Title :

    AUXILIARY POWER SOURCE DEVICE FOR VEHICLE AND OVERCURRENT PROTECTION METHOD


    Additional title:

    HILFSSTROMQUELLE FÜR FAHRZEUG UND ÜBERSTROMSCHUTZVERFAHREN
    DISPOSITIF SOURCE D'ALIMENTATION AUXILIAIRE POUR VÉHICULE ET PROCÉDÉ DE PROTECTION CONTRE LES SURINTENSITÉS


    Contributors:

    Publication date :

    2017-03-01


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    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 / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen




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