The invention provides a vehicle-mounted charging circuit with double USB (universal serial bus) interfaces, which comprises a power supply control circuit, a direct-current buck-boost circuit, a direct-current buck circuit, a first-type USB interface and a second-type USB interface, and is characterized in that the power supply control circuit is used for providing a vehicle-mounted direct-current input power supply VBAT for the input ends Vin of the direct-current buck-boost circuit and the direct-current buck circuit; the direct current buck-boost circuit is used for performing direct current-direct current conversion on the vehicle-mounted direct current input power supply VBAT received by the input end of the direct current buck-boost circuit so as to obtain a first direct current power supply provided for the first type of USB interface; and the direct current step-down circuit is used for carrying out direct current-direct current conversion on the vehicle-mounted direct current input power supply VBAT received by the input end of the direct current step-down circuit so as to obtain a second direct current power supply provided for the second type of USB interface. Therefore, high-power charging can be supported, and the charging protocol requirement of mainstream mobile equipment in the market can be met.

    本发明提供一种具有双USB接口的车载充电电路,其包括供电控制电路、直流升降压电路、直流降压电路、第一类型USB接口和第二类型USB接口,所述供电控制电路用于向所述直流升降压电路和直流降压电路的输入端Vin提供车载直流输入电源VBAT;所述直流升降压电路用于将其输入端接收到的所述车载直流输入电源VBAT进行直流‑直流转换以得到提供给所述第一类型USB接口的第一直流电源;直流降压电路,用于将其输入端接收到的所述车载直流输入电源VBAT进行直流‑直流转换以得到提供给所述第二类型USB接口的第二直流电源。这样,不仅可以支持大功率充电,而且还可以满足市场上主流移动设备的充电协议要求。


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    Titel :

    Vehicle-mounted charging circuit with double USB interfaces


    Weitere Titelangaben:

    具有双USB接口的车载充电电路


    Beteiligte:
    CHEN XUAN (Autor:in) / HUA MIN (Autor:in)

    Erscheinungsdatum :

    2023-10-27


    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 / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR




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