A power supply apparatus includes: a power supply circuit; and a control section, the power supply circuit including a power factor improvement circuit that improves a power factor of alternating-current electrical energy by switching of a transistor; and a DC/DC conversion apparatus that converts by switching of a transistor at least one of a voltage and a current of the electrical energy whose power factor is improved by the power factor improvement circuit, the control section being configured to control switching timings of the power factor improvement circuit and the DC/DC conversion apparatus, wherein the number of the power supply circuit is N, and the control section controls the switching timings such that the switching timing of the power factor improvement circuit differs among the N power supply circuits, and that the switching timing of the DC/DC conversion apparatus differs among the N power supply circuits.


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    Title :

    POWER SUPPLY DEVICE, ON-BOARD POWER SUPPLY DEVICE, AND ELECTRIC AUTOMOBILE


    Contributors:

    Publication date :

    2016-01-07


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

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



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