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1. (WO2018184574) DEVICE UNDER CHARGE, WIRELESS CHARGING APPARATUS AND CONTROL METHOD THEREOF

Pub. No.:    WO/2018/184574    International Application No.:    PCT/CN2018/081963
Publication Date: Fri Oct 12 01:59:59 CEST 2018 International Filing Date: Thu Apr 05 01:59:59 CEST 2018
IPC: H02J 7/00
Applicants: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD.
OPPO广东移动通信有限公司
Inventors: WAN, Shiming
万世铭
Title: DEVICE UNDER CHARGE, WIRELESS CHARGING APPARATUS AND CONTROL METHOD THEREOF
Abstract:
The present invention provides a device under charge, a wireless charging apparatus and a control method thereof. The device under charge comprises a wireless receiving circuit for receiving electromagnetic signals transmitted by the wireless charging apparatus and converting the electromagnetic signals to a voltage output of the wireless receiving circuit; a voltage lowering circuit for receiving the voltage output of the wireless receiving circuit, lowering the voltage level of the voltage output of the wireless receiving circuit, obtaining a voltage output of the voltage lowering circuit, and charging a battery of the device under charge on the basis of the voltage output of the voltage lowering circuit; a temperature sensing circuit for detecting a temperature of the device under charge; and a communication control circuit for sending a feedback message to the wireless charging apparatus when the temperature of the device under charge is larger than a preset threshold value. The feedback message triggers the wireless charging apparatus to control the wireless charging progress to lower the voltage output of the wireless receiving circuit. The device under charge provides advantages such as high charging efficiency and low heat production.