Invention Grant
- Patent Title: Wireless power receiving device having a short-circuiting switch, and wireless power transmission device
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Application No.: US14315671Application Date: 2014-06-26
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Publication No.: US09966999B2Publication Date: 2018-05-08
- Inventor: Tsunehiro Saen , Masahide Ohnishi , Ryo Miyazawa
- Applicant: TDK CORPORATION
- Applicant Address: JP Tokyo
- Assignee: TDK CORPORATION
- Current Assignee: TDK CORPORATION
- Current Assignee Address: JP Tokyo
- Agency: Oliff PLC
- Priority: JP2013-134996 20130627; JP2014-103046 20140519
- Main IPC: H04B5/00
- IPC: H04B5/00 ; H02J7/02 ; H02J50/12 ; H02J1/04 ; H02J5/00 ; H02J1/00

Abstract:
To provide a wireless power receiving device, and a wireless power transmission device capable of improving the reliability of a protection circuit while preventing breakage of a circuit element upon occurrence of any abnormality, such as overvoltage or overcurrent. A wireless power receiving device includes a power receiving coil; a rectifier unit that performs full-wave rectification of the power received by the power receiving coil and supplies the power to a load; power-receiving-side detecting unit that detects an output voltage value or an output current value from the rectifier unit; and switching unit that short-circuits one of two current paths through the rectifier unit if the value detected by the power-receiving-side detecting unit exceeds a predetermined reference value.
Public/Granted literature
- US20150001956A1 WIRELESS POWER RECEIVING DEVICE, AND WIRELESS POWER TRANSMISSION DEVICE Public/Granted day:2015-01-01
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