The invention provides a power supply control circuit of a 12V battery in a vehicle-mounted switching power supply, a solar battery in the circuit passes through an auxiliary power supply and then is transmitted to a first input port of an LDO circuit, the voltage of the 12V battery passes through a P-type MOS tube to a second input port of the LDO circuit, and the P-type MOS tube is used as a switch to control the on and off of the 12V battery power supply control circuit. The LDO circuit outputs 3.3 V power supply voltage to the MCU, and one output port of the MCU controls the 40W detection circuit and is used for detecting the minimum output power of the solar cell. The power supply control circuit of the 12V battery in the switching power supply can control on and off of the 12V battery, avoids loss of the 12V battery caused by unnecessary on, is simple in structure, low in cost and high in practicability, and contributes to development of solar electric vehicles.

    本发明提供一种车载开关电源中12V电池的供电控制线路,该线路中太阳能电池经过辅助电源后传递到LDO线路的一个第一输入端口,12V电池的电压经过一个P型MOS管到LDO线路的一个第二输入端口,P型MOS管作为开关控制着12V电池供电控制线路的开通和关断,LDO线路输出3.3V供电电压给MCU,MCU的一个输出端口控制40W检测线路,用来检测太阳能电池的最小输出功率;本发明提供的这种开关电源中12V电池的供电控制线路,可以控制12V电池的开通和关断,避免不必要的开通造成12V电池的损耗,结构简单,成本低,实用性强,为太阳能电动汽车的发展做出贡献。


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    Titel :

    Power supply control circuit of 12V battery in vehicle-mounted switching power supply


    Weitere Titelangaben:

    一种车载开关电源中12V电池的供电控制线路


    Beteiligte:
    LIU NIANFENG (Autor:in) / YANG MEIYING (Autor:in) / LI HAO (Autor:in)

    Erscheinungsdatum :

    2023-11-14


    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



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