发明申请
- 专利标题: POWER SUPPLY UNIT
- 专利标题(中): 供电单元
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申请号: US10595276申请日: 2005-02-17
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公开(公告)号: US20090200870A1公开(公告)日: 2009-08-13
- 发明人: Yoshiyuki Uno , Akio Nishida , Hiroshi Takemura
- 申请人: Yoshiyuki Uno , Akio Nishida , Hiroshi Takemura
- 优先权: JP2005-038230 20050215
- 国际申请: PCT/JP05/08926 WO 20050217
- 主分类号: H02J3/00
- IPC分类号: H02J3/00
摘要:
A power supply unit includes a main power-supply circuit and a secondary power-supply circuit which are connected to an alternating current power supply AC. The main power-supply circuit includes a full-wave rectifier and an input current control circuit corresponding to a harmonic current suppression circuit. The input current control circuit includes a resistor as circuit current detection element and a control circuit for controlling a switch element by detecting a current flowing in the resistor. A connection is provided such that a current flowing in a diode as a second rectifying circuit of the secondary power-supply circuit may return to the alternating current power supply through the resistor.
公开/授权文献
- US07719139B2 Power supply unit 公开/授权日:2010-05-18