发明申请
- 专利标题: Power Supply
- 专利标题(中): 电源
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申请号: US11547487申请日: 2005-03-24
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公开(公告)号: US20080273354A1公开(公告)日: 2008-11-06
- 发明人: Takashi Ryu , Hiroki Akashi , Takuya Ishii , Hiroshi Saito
- 申请人: Takashi Ryu , Hiroki Akashi , Takuya Ishii , Hiroshi Saito
- 优先权: JP2004-107072 20040331
- 国际申请: PCT/JP2005/005413 WO 20050324
- 主分类号: H02M3/335
- IPC分类号: H02M3/335
摘要:
There are provided an inductive load current control circuit for detecting and controlling a current flowing to an inductive load with high accuracy, and a power supply.The inductive load current control circuit includes first and second switch elements connected in series between an input voltage and a ground potential, an inductive load connected to a connection point between the first and second switch elements, a third switch element having one terminal connected to the connection point between the first and second switch elements, a current comparator connected to another terminal of the third switch element to compare an output current of the third switch element with a reference current, decide and output a magnitude relation, and a switch element control circuit that controls transition from a state in which the second switch element is turned on to a state in which the first switch element is turned on according to an output of the current comparator.
公开/授权文献
- US07592792B2 Power supply 公开/授权日:2009-09-22
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