US 11,949,245 B2
Wireless power supply device, wireless powered device, wireless power transmission system and manufacturing method thereof
Qixue Yu, Shanghai (CN); Junfeng Guan, Shanghai (CN); and Ming Fu, Shanghai (CN)
Assigned to ABB Power Electronics Inc., Plano, TX (US)
Appl. No. 17/905,003
Filed by ABB POWER ELECTRONICS INC., Plano, TX (US)
PCT Filed Mar. 13, 2020, PCT No. PCT/CN2020/079273
§ 371(c)(1), (2) Date Aug. 25, 2022,
PCT Pub. No. WO2021/179302, PCT Pub. Date Sep. 16, 2021.
Prior Publication US 2023/0109007 A1, Apr. 6, 2023
Int. Cl. H02J 50/12 (2016.01); H02J 50/80 (2016.01)
CPC H02J 50/12 (2016.02) [H02J 50/80 (2016.02)] 18 Claims
OG exemplary drawing
 
1. A wireless power supply device comprising:
a first circuit coupled to a DC supply, wherein the first circuit is configured to convert a DC voltage of the DC supply into an AC voltage to enable wireless power transmission between the wireless power supply device and a wireless powered device;
a pulse signal receiver configured to receive a first pulse signal from the wireless powered device and to generate a second pulse signal based on the first pulse signal, the first pulse signal being generated based on a feedback signal of the wireless powered device indicating information associated with a received power of the wireless powered device; and
a first control unit coupled to the first circuit and the pulse signal receiver, and configured to control conversion of the first circuit based on the second pulse signal.