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    • 1. 发明授权
    • Power supply and power control device
    • 电源和电源控制装置
    • US08319482B2
    • 2012-11-27
    • US12716133
    • 2010-03-02
    • Yoshihiko MatsuoTakeshi KimuraOsamu Takahashi
    • Yoshihiko MatsuoTakeshi KimuraOsamu Takahashi
    • G05F1/613
    • H02M3/1588Y02B70/1466
    • A power supply includes a first switch and a second switch coupled in series between an input voltage terminal to which an input voltage is applied and a reference voltage terminal to which a reference voltage lower than the input voltage is applied, an inductor disposed between a junction coupling the first and second switches and an output terminal from which an output voltage is output, and a controller controlling the first and second switches to be alternately switched at a given switching cycle depending on an error of the output voltage with respect to a target voltage, wherein the controller changes the switching cycle from a first cycle to a second cycle longer than the first cycle, depending on a voltage at the junction when the second switch is in a turned-on state.
    • 电源包括串联耦合在施加输入电压的输入电压端子与施加了低于输入电压的参考电压的参考电压端子之间的第一开关和第二开关,设置在连接点之间的电感器 耦合第一和第二开关以及从其输出输出电压的输出端子,以及控制器,用于根据输出电压相对于目标电压的误差控制第一和第二开关以给定开关周期交替切换 其中,当所述第二开关处于导通状态时,所述控制器将所述开关周期从第一周期改变为比所述第一周期长的第二周期。