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    • 2. 发明申请
    • VOLTAGE-DIVIDING POWER FACTOR CORRECTION CIRCUIT, VOLTAGE-DIVIDING POWER FACTOR CORRECTION APPARATUS AND VOLTAGE-DIVIDING POWER FACTOR CORRECTION METHOD
    • 电压分压功率因数校正电路,电压分压功率因数校正装置和电压分压功率因数校正方法
    • US20120008351A1
    • 2012-01-12
    • US13175411
    • 2011-07-01
    • Yu YONEZAWAYoshiyasu NAKASHIMA
    • Yu YONEZAWAYoshiyasu NAKASHIMA
    • H02M7/217H02M7/00
    • H02M1/4225H02M2001/0077Y02B70/126Y02P80/112
    • A circuit include: a first power factor correction circuit that forces current produced by the positive AC voltage to be in phase with the positive AC voltage so that a power factor of electric power is improved; a second power factor correction circuit that forces current produced by the negative AC voltage to be in phase with the negative AC voltage so that a power factor of electric power is improved; and an output circuit including a first capacitor storing first electric power with a power factor improved by the first power factor correction circuit and a second capacitor storing second electric power with a power factor improved by the second power factor correction circuit, the first capacitor and the second capacitor being provided in series, the output circuit outputting the first electric power stored in the first capacitor and the second electric power stored in the second capacitor.
    • 电路包括:将由正的交流电压产生的电流与正的交流电压同相的第一功率因数校正电路,从而提高功率的功率因数; 第二功率因数校正电路,其将由负交流电压产生的电流与负的交流电压同相,从而提高电力的功率因数; 以及输出电路,包括存储第一电力的第一电容器,其具有由所述第一功率因数校正电路改善的功率因数;以及第二电容器,存储具有由所述第二功率因数校正电路改善的功率因数的第二电功率,所述第一电容器和 第二电容器串联设置,输出电路输出存储在第一电容器中的第一电力和存储在第二电容器中的第二电力。
    • 8. 发明申请
    • POWER SUPPLY DEVICE
    • 电源设备
    • US20120242302A1
    • 2012-09-27
    • US13491047
    • 2012-06-07
    • Yu YONEZAWAYoshiyasu Nakashima
    • Yu YONEZAWAYoshiyasu Nakashima
    • G05F1/10
    • H02M3/158H02M2001/0022H02M2001/008H02M2001/327Y10T307/406
    • A power supply device includes a step-down unit to step down an input voltage, a switching unit to perform switching on a stepped-down voltage obtained through the stepping down by the step-down unit so as to externally output the voltage, an output variation detection unit to detect a corresponding variation of output from the switching unit, a delay unit to delay the input voltage by a prescribed time period, a delay variation detection unit to detect a corresponding variation of a delayed voltage output from the delay unit, an addition unit to add corresponding variations of the power supply voltage and the delayed voltage respectively detected by the output variation detection unit and the delay variation detection unit, and a control unit to perform feedback control on the basis of the corresponding variations of the power supply voltage and the delayed voltage added by the addition unit.
    • 电源装置包括降压输入电压的降压单元,切换单元,对通过降压单元进行降压而获得的降压电压进行切换,从而外部输出电压;输出 变化检测单元,用于检测来自开关单元的输出的相应变化;延迟单元,用于将输入电压延迟预定时间段;延迟变化检测单元,用于检测从延迟单元输出的延迟电压的相应变化; 添加单元,用于添加由输出变化检测单元和延迟变化检测单元分别检测的电源电压和延迟电压的相应变化,以及控制单元,用于基于电源电压的相应变化执行反馈控制 以及加法单元所加的延迟电压。