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    • 17. 发明授权
    • Power system having a power saving mechanism
    • 具有省电机构的电力系统
    • US08013477B2
    • 2011-09-06
    • US12512973
    • 2009-07-30
    • Chin-Sheng ChuehPo-Wen WangChien-Kun HuangChia-Tse YehYung-Chun LinJiun-Wei Tseng
    • Chin-Sheng ChuehPo-Wen WangChien-Kun HuangChia-Tse YehYung-Chun LinJiun-Wei Tseng
    • H01H9/54
    • H02M3/33569H02M1/36H02M2001/0032Y02B70/16Y10T307/944
    • A power system having a power saving mechanism includes a voltage regulator, a power input module, and a switching signal generation unit. The voltage regulator performs a regulation operation on a first voltage for generating a second voltage. The power input module includes a transformer, a rectifying unit, a switch, and a switch control unit. The rectifying unit together with the transformer is put in use for converting an input voltage into the first voltage. The switch is employed to control a current flowing through the primary winding of the transformer. The switch control unit generates a control signal for controlling the switch according to a switching signal. The switching signal generation unit is utilized for generating the switching signal to disable the switch control unit during an energy transfer disable interval so as to decrease the first voltage from a first predetermined voltage to a second predetermined voltage.
    • 具有省电机构的电力系统包括电压调节器,电力输入模块和开关信号生成单元。 电压调节器对第一电压执行调节操作以产生第二电压。 电源输入模块包括变压器,整流单元,开关和开关控制单元。 整流单元与变压器一起被用于将输入电压转换成第一电压。 该开关用于控制流过变压器初级绕组的电流。 开关控制单元根据开关信号产生用于控制开关的控制信号。 切换信号生成单元用于产生切换信号,以在能量传递禁止间隔期间禁止开关控制单元,以便将第一电压从第一预定电压降低到第二预定电压。