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    • 5. 发明授权
    • Method for controlling a switching power unit using an AC/DC converter, a power factor correction unit, and a DC/DC converter unit
    • 使用AC / DC转换器控制开关电源单元的方法,功率因数校正单元和DC / DC转换器单元
    • US08477519B2
    • 2013-07-02
    • US13177290
    • 2011-07-06
    • Yoshihiro NakamuraTakashi Kawai
    • Yoshihiro NakamuraTakashi Kawai
    • H02M7/155H02M7/162
    • H02M1/4258Y02B70/126
    • There is provided a method for controlling a switching power unit that converts AC input voltages of an AC source into a DC voltages while improving a power-factor of the AC input voltages, the switching power unit comprising an AC/DC converter circuit that is composed of a power-factor correction unit and a current resonance converter unit wherein at least a part of switching elements of the current resonance converter unit is shared with switching elements of the power-factor correction unit, wherein around timing that polarities of the AC source are switched between a positive half cycle and a negative half cycle, ON-and-OFF control of the switching elements are performed as that high frequency voltages that are applied to a primary winding of a high frequency transformer which is a part of the current resonance converter unit are to be symmetrical in a positive and negative relation.
    • 提供了一种用于控制将AC电源的AC输入电压转换为DC电压同时改善AC输入电压的功率因数的开关电源单元的方法,所述开关电源单元包括组成的AC / DC转换器电路 功率因数校正单元和电流谐振变换器单元,其中,所述电流谐振变换器单元的至少一部分开关元件与所述功率因数校正单元的开关元件共享,其中所述AC源的极性在 在正半周期和负半周期之间切换,开关元件的ON-OFF控制被执行为施加到作为电流谐振转换器的一部分的高频变压器的初级绕组的高频电压 单位要以正负关系对称。