Power reduction of a power supply unit at light loading or no loading
    2.
    发明授权
    Power reduction of a power supply unit at light loading or no loading 有权
    电源单元在轻负载或无负载时的功率降低

    公开(公告)号:US08582322B2

    公开(公告)日:2013-11-12

    申请号:US13419542

    申请日:2012-03-14

    IPC分类号: H02M3/335 H02M7/44

    摘要: A power supply unit includes a switching power converter responsive to a control signal to switch a power switch thereof to provide an output voltage and an output current for a load. To reduce light-load or no-load power consumption of the power supply unit, the power supply unit repeats a process of stopping switching the power switch and recovering switching the power switch for a period of time once the output voltage decreases to be lower than a reference voltage.

    摘要翻译: 电源单元包括响应于控制信号切换其电源开关以提供负载的输出电压和输出电流的开关电力转换器。 为了减少电源单元的轻负载或空载功率消耗,电源单元重复执行停止切换电源开关并在输出电压降低后恢复切换电源开关一段时间的过程以低于 参考电压。