Invention Grant
US08477519B2 Method for controlling a switching power unit using an AC/DC converter, a power factor correction unit, and a DC/DC converter unit
有权
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
- Patent Title: Method for controlling a switching power unit using an AC/DC converter, a power factor correction unit, and a DC/DC converter unit
- Patent Title (中): 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
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Application No.: US13177290Application Date: 2011-07-06
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Publication No.: US08477519B2Publication Date: 2013-07-02
- Inventor: Yoshihiro Nakamura , Takashi Kawai
- Applicant: Yoshihiro Nakamura , Takashi Kawai
- Applicant Address: JP Kitasaku-gun
- Assignee: Minebea Co., Ltd
- Current Assignee: Minebea Co., Ltd
- Current Assignee Address: JP Kitasaku-gun
- Agency: Oliff & Berridge, PLC
- Priority: JP2010-158813 20100713
- Main IPC: H02M7/155
- IPC: H02M7/155 ; H02M7/162

Abstract:
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.
Public/Granted literature
- US20120014152A1 METHOD FOR CONTROLLING SWITCHING POWER UNIT Public/Granted day:2012-01-19
Information query
IPC分类: