The invention provides an electric vehicle and a control power supply circuit thereof, and belongs to the technical field of electronics. The control power supply circuit is applied to an electric vehicle including a low-voltage side load and a high-voltage side load. A control circuit in the control power supply circuit can control a first control power supply circuit to supply power to a low-voltage side load based on a power supply voltage provided by a low-voltage battery when the power supply voltage provided by the low-voltage battery is within a voltage range, namely the low-voltage battery does not have a fault; and the second control power supply circuit is controlled to supply power to the high-voltage side load based on the power supply voltage provided by the high-voltage battery. And the control circuit can control the first control power supply circuit and the second control power supply circuit to respectively supply power to the low-voltage side load and the high-voltage side load based on the power supply voltage provided by the high-voltage battery when the power supply voltage provided by the low-voltage battery is out of a voltage range, namely the low-voltage battery fails. Therefore, when the low-voltage battery breaks down, the low-voltage side load and the high-voltage side load are still normally driven to work.

    本申请提供了一种电动车辆及其控制电源电路,属于电子技术领域。该控制电源电路应用于包括低压侧负载和高压侧负载的电动车辆中。该控制电源电路中的控制电路能够在低压电池提供的供电电压位于电压范围内,即低压电池未出现故障时,控制第一控制电源电路基于低压电池提供的供电电压向低压侧负载供电,且控制第二控制电源电路基于高压电池提供的供电电压向高压侧负载供电。且控制电路能够在低压电池提供的供电电压位于电压范围外,即低压电池出现故障时,控制第一控制电源电路和第二控制电源电路均基于高压电池提供的供电电压分别向低压侧负载和高压侧负载供电。如此,能够确保在低压电池出现故障时,依然正常驱动低压侧负载和高压侧负载工作。


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    Title :

    Electric vehicle and control power supply circuit thereof


    Additional title:

    电动车辆及其控制电源电路


    Contributors:
    LUO WENHUI (author)

    Publication date :

    2022-04-12


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    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 / H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung



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