Title:
ワイヤレス受電装置およびその制御方法、受電制御回路、電子機器
Document Type and Number:
Japanese Patent JP6764764
Kind Code:
B2
Abstract:
A wireless power receiver that receives a power signal from a wireless power transmitter includes: a receiving antenna including a receiving coil for receiving the power signal; a rectifying circuit configured to rectify an alternating current flowing through the receiving antenna; a smoothing capacitor configured to smooth an output of the rectifying circuit; an overvoltage detecting circuit configured to compare a rectified voltage generated in the smoothing capacitor with an overvoltage threshold; a modulator configured to change a parallel resonance frequency of the receiving antenna; and a discharging circuit configured to be switched between an enable state and a disable state and configured to enter the enable state during a communication period by the modulator to discharge the smoothing capacitor.
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Inventors:
Daisuke Uchimoto
Application Number:
JP2016218232A
Publication Date:
October 07, 2020
Filing Date:
November 08, 2016
Export Citation:
Assignee:
ROHM Co., Ltd.
International Classes:
H02J50/12; H02J7/00
Domestic Patent References:
| JP2016504908A | ||||
| JP2011109810A | ||||
| JP2011172299A | ||||
| JP2014187784A | ||||
| JP2017142115A |
Foreign References:
| US20160043562 | ||||
| WO2015125655A1 |
Attorney, Agent or Firm:
Sakaki Morishita
Masaki Taiki
Masaki Taiki