The invention relates to the field of chargers, and particularly discloses an auxiliary power supply module for a bidirectional direct current charger. The auxiliary power supply module comprises an input end, a first output end and a second output end, wherein the input end is connected with an external power supply, the first output end is connected with a DC/DC circuit and provides insulation detection voltage for the bidirectional direct current charger, the second output end is connected with an anode of a diode D2, and a cathode of the diode D2 is connected with the DC/DC circuit and provides auxiliary power supply for the DC/DC circuit during reverse operation. In the reverse off-grid mode, the power level DC/DC circuit does not need to output insulation detection voltage needed by an electric vehicle, the insulation detection voltage is directly provided by the auxiliary power supply module, after the scheme of the auxiliary power supply module is fixed, the no-load loss of the auxiliary power supply module is basically fixed, the auxiliary power supply power of the power supply modules of the system control circuit and the DC/DC circuit is relatively fixed, and the requirement on the power of an external power supply is obviously reduced, so that the scheme of the auxiliary power supply module provided by the invention is more universal in applicability.

    本发明涉及充电机领域,具体公开了用于双向直流充电机的辅助电源模块,包括输入端、第一输出端和第二输出端,其中,所述输入端连接外部电源,所述第一输出端连接DC/DC电路,为双向直流充电机提供绝缘检测电压,所述第二输出端连接二极管D2的阳极,所述二极管D2的阴极连接DC/DC电路,为DC/DC电路反向工作时提供辅助供电。本发明在反向离网模式时,不需要功率级DC/DC电路输出电动汽车所需要的绝缘检测电压,而是由辅助电源模块直接提供,辅助电源模块方案固定后,其空载损耗也基本固定,系统控制电路和DC/DC电路的电源模块辅助电源功率相对固定,对外部电源功率的要求显著降低,因此本发明提供的辅助电源模块方案更具有普遍的适用性。


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    Titel :

    Auxiliary power supply module and auxiliary power supply method for bidirectional direct current charger


    Weitere Titelangaben:

    一种用于双向直流充电机的辅助电源模块及辅助供电方法


    Beteiligte:
    YANG CHUANCHAO (Autor:in) / SHAO DANWEI (Autor:in) / YANG ZHI (Autor:in) / YANG LIJUN (Autor:in)

    Erscheinungsdatum :

    2021-05-04


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

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



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