WIRELESS CHARGING RECEIVER, SYSTEM AND CONTROL METHOD

WIPO Patent Application WO/2021/083287

A1

The present application relates to the technical field of wireless charging, and provides a wireless charging receiver, system and control method. The wireless charging receiver comprises: a receiving coil, a compensation network, a power converter, and a receiver controller. The receiving coil converts an alternating magnetic field transmitted by a transmitter into alternating current and transmits the alternating current to the compensation network. The compensation network compensates for the alternating current and then transmits same to the power converter. The power converter rectifies the compensated alternating current into direct current to charge a load. The receiver controller obtains a reference signal of the transmitter according to input current of the power converter and input reference current, and sends the reference signal to a transmitter controller so that the transmitter controller controls the transmitter according to the reference signal of the transmitter. According to the receiver, because the control of the input current of the power converter of the receiver is added, the input current of the power converter of the receiver can be protected against overcurrent, thereby protecting the power converter of the receiver, and improving the reliability of a wireless charging system.

MAO YUNHE (CN)
WU ZHIXIAN (CN)

PCT/CN2020/124900

May 06, 2021

October 29, 2020

Click for automatic bibliography generation  

HUAWEI TECH CO LTD (CN)

H02J50/70; B60L53/12; H02J7/02; H02J50/10

CN110808625A	2020-02-18
CN103094995A	2013-05-08
CN107171419A	2017-09-15
CN108023412A	2018-05-11
CN107959334A	2018-04-24
US20170126064A1	2017-05-04
CN107623344A	2018-01-23
US20190023141A1	2019-01-24

See also references of EP 4050758A4

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