The invention discloses a soft switching charging device for an electric vehicle, and aims to solve the problems of high switching loss and low efficiency of the conventional charging device. The device comprises an AC voltage source, a PFC rectification module, a DC/DC conversion module, a charging module and a rechargeable battery, the DC/DC conversion module comprises a power switch and a diode, the power switch realizes zero-current conduction and zero-voltage turn-off, and the diode realizes zero-current conduction and turn-off. By arranging only one power switch, zero-current conduction and zero-voltage turn-off are achieved, the structure is simple, few switching devices are used, the size and cost of the device are reduced, the switching loss of the device is effectively reduced, and the working efficiency of the device is remarkably improved.

    一种电动汽车软开关充电装置,其为了解决现有的充电装置开关损耗大、效率低的问题。其包括交流电压源、PFC整流模块、DC/DC变换模块,充电模块和充电电池,所述DC/DC变换模块包含功率开关以及二极管,所述功率开关实现零电流导通和零电压关断,所述二极管实现零电流导通关断。通过只设置一个功率开关,实现零电流导通和零电压关断,结构简单,开关器件使用少,减小了装置的体积和成本,并有效降低了装置的开关损耗,显著提升了装置的工作效率。


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    Title :

    soft switch charging device for electric vehicle


    Additional title:

    一种电动汽车软开关充电装置


    Contributors:
    ZHUANG TONG (author) / WU GANG (author) / XUE LI (author) / LIANG RUIZHI (author) / XU ZIHAN (author) / RAN JUNCHAO (author) / LIU KAI (author) / ZHANG BIAO (author)

    Publication date :

    2021-07-30


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen



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