The invention discloses a vehicle-mounted power supply circuit and method for realizing a power-down protection function based on a super capacitor. The circuit comprises an input power supply protection circuit; a DC/DC module which converts input power supply voltage into output bus voltage; the post-stage power supply conversion module which is used for converting the bus voltage into differentpower supply voltages; wherein the DC/DC module is a DC/DC module with a constant voltage and constant current function, a super capacitor module is connected to a power bus between the DC/DC moduleand the post-stage power supply conversion module, the super capacitor module comprises a plurality of super capacitors which are connected in series, and each super capacitor is connected with a resistor in parallel. Common functions of the vehicle-mounted power supply are utilized, the super capacitor is used as a conventional power supply filter capacitor, a special management circuit is not needed, the structure is simple and easy to use, operation is stable and reliable, and the power-down protection function of the vehicle-mounted air conditioner is achieved.

    公开了一种基于超级电容实现掉电保护功能的车载电源电路及方法,所述电路包括:输入电源保护电路;将输入电源电压变换输出总线电压的DC/DC模块;将总线电压变换成不同电源电压的后级电源变换模块,所述DC/DC模块为恒压恒流功能的DC/DC模块,所述DC/DC模块与所述后级电源变换模块之间的电源总线上连接有超级电容模块,所述超级电容模块包括多个串联连接的超级电容,每个所述超级电容并联有电阻。本公开利用车载电源常用功能,将超级电容作为常规的电源滤波电容使用,无需特别管理电路,结构简单易用,且运行稳定可靠,实现了车机掉电保护功能。


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    Title :

    Vehicle-mounted power supply circuit and method for realizing power-down protection function based on super capacitor


    Additional title:

    基于超级电容实现掉电保护功能的车载电源电路及方法


    Contributors:

    Publication date :

    2020-06-05


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

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