Invention Grant
- Patent Title: Power reception device and power transmission device
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Application No.: US16192589Application Date: 2018-11-15
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Publication No.: US10862339B2Publication Date: 2020-12-08
- Inventor: Tatsuya Hosotani
- Applicant: Murata Manufacturing Co., Ltd.
- Applicant Address: JP Kyoto-fu
- Assignee: Murata Manufacturing Co., Ltd.
- Current Assignee: Murata Manufacturing Co., Ltd.
- Current Assignee Address: JP Kyoto-fu
- Agency: Studebaker & Brackett PC
- Priority: JP2016-162411 20160823
- Main IPC: H02J50/12
- IPC: H02J50/12 ; H02J50/10 ; H02J50/40

Abstract:
A power reception device includes a power reception coil configured to couple with a power transmission coil included in a power transmission device; a rectifier circuit including a diode and a transistor electrically connected to the power reception coil and configured to rectify a high frequency AC current flowing in the power reception coil; outputs configured to output the current rectified by the rectifier circuit to a load; a voltage detection circuit configured to detect an output voltage Va; and a controller configured to control an operation of the transistor based on the output voltage Va. The controller turns off the transistor when the output voltage Va≤the threshold value Va1 is satisfied and causes the rectifier circuit to execute a rated rectification operation, and turns on the transistor when the voltage Va≥the threshold value Va2 is satisfied and stops the rated rectification operation.
Public/Granted literature
- US20190089199A1 POWER RECEPTION DEVICE AND POWER TRANSMISSION DEVICE Public/Granted day:2019-03-21
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