Invention Grant
- Patent Title: Power reception apparatus, power transmission apparatus, non-contact power supply system, power reception method, and power transmission method
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Application No.: US14672553Application Date: 2015-03-30
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Publication No.: US09819213B2Publication Date: 2017-11-14
- Inventor: Yoshihiro Ikefuji
- Applicant: Rohm Co., Ltd.
- Applicant Address: JP Kyoto
- Assignee: Rohm Co., Ltd.
- Current Assignee: Rohm Co., Ltd.
- Current Assignee Address: JP Kyoto
- Agency: Fish & Richardson P.C.
- Priority: JP2014-073095 20140331; JP2014-189760 20140918
- Main IPC: H01M10/44
- IPC: H01M10/44 ; H01M10/46 ; H02J7/02 ; H04B5/00 ; H02J50/12 ; H02J50/60 ; H02J50/80

Abstract:
A power reception apparatus includes a power receiving circuit to be connected to a power reception side resonance circuit including a power reception side coil and a power reception side capacitance, for generating an output power based on power received by the power reception side coil utilizing magnetic resonance, a changing/short-circuiting circuit configured to change a resonance frequency of the power reception side resonance circuit from a reference frequency that is the resonance frequency when receiving the power, or to short-circuit the power reception side coil, before receiving the power.
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