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    • 65. 发明申请
    • POWER MANAGEMENT CIRCUIT AND ELECTRONIC DEVICE
    • 电源管理电路和电子设备
    • US20130241295A1
    • 2013-09-19
    • US13663599
    • 2012-10-30
    • HAI-LONG CHENGTAO WANGXUE-BING DENGXIAO-HUI MAXIN-PING LI
    • HAI-LONG CHENGTAO WANGXUE-BING DENGXIAO-HUI MAXIN-PING LI
    • G05F1/10H02J4/00
    • H02J9/06Y10T307/696
    • A power source includes a first power terminal for outputting a first supply voltage. A power management circuit includes a pulse width modulation unit having an input power terminal, a first switch unit capable of being turned on to establish an electrical connection between the first power terminal and the input power terminal or being turned off to cut off the electrical connection, a storage unit. The input power terminal receives the first supply voltage from the first power terminal when the first switch unit is turned on, the pulse width modulation unit is powered by the first supply voltage to generate a pulse voltage at the output terminal. The storage unit receives the first supply voltage to store energy when the pulse voltage is in a first level, and releases energy to generate an operating voltage for powering the load when the pulse voltage is in a second level.
    • 电源包括用于输出第一电源电压的第一电源端子。 电源管理电路包括具有输入电源端子的脉冲宽度调制单元,能够导通的第一开关单元,以在第一电源端子和输入电源端子之间建立电连接,或者关断以断开电连接 ,存储单元。 当第一开关单元接通时,输入电源端子从第一电源端子接收第一电源电压,脉冲宽度调制单元由第一电源电压供电以在输出端产生脉冲电压。 当脉冲电压处于第一电平时,存储单元接收第一电源电压以存储能量,并且当脉冲电压处于第二电平时释放能量以产生用于为负载供电的工作电压。