US 12,483,069 B2
Dynamic wireless power supply system with controllable power capacity using energy management circuits
Jinhai Jiang, Harbin (CN); Lianbin Cheng, Harbin (CN); Xingjian Zhou, Harbin (CN); Kai Song, Harbin (CN); Chunbo Zhu, Harbin (CN); Zhixian Wu, Dongguan (CN); and Shuyang Wang, Shenzhen (CN)
Assigned to Huawei Digital Power Technologies Co., Ltd., Shenzhen (CN)
Filed by Huawei Digital Power Technologies Co., Ltd., Shenzhen (CN)
Filed on Feb. 29, 2024, as Appl. No. 18/591,648.
Application 18/591,648 is a continuation of application No. PCT/CN2022/110641, filed on Aug. 5, 2022.
Claims priority of application No. 202111013681.1 (CN), filed on Aug. 31, 2021.
Prior Publication US 2024/0235270 A1, Jul. 11, 2024
Int. Cl. H02J 50/00 (2016.01); H02J 50/12 (2016.01); H02M 1/00 (2006.01); B60L 53/122 (2019.01)
CPC H02J 50/12 (2016.02) [H02M 1/0043 (2021.05); B60L 53/122 (2019.02); B60L 2210/30 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A wireless transmitter end comprising:
a transmitter coil;
N energy management circuits, wherein N is an integer greater than 1, and wherein each of the N energy management circuits comprises:
an input end configured to electrically connect to a power grid;
an output end electrically connected to the transmitter coil;
an inverter circuit;
an alternating current-direct current (AC-DC) circuit comprising:
an AC-DC input end configured to electrically connect to the power grid; and
an AC-DC output end electrically connected to the inverter circuit; and
a transformer comprising:
a primary coil electrically connected to the inverter circuit; and
a secondary coil electrically connected to the transmitter coil; and
a transmitter end control system electrically connected to the inverter circuit of each of the N energy management circuits, wherein the transmitter end control system is configured to output synchronous phase shift control signals with a fixed duty cycle in order to drive the inverter circuit of each of the N energy management circuits to work synchronously, wherein the transmitter end control system comprises:
a current sensor electrically connected to the transmitter coil;
a sampling circuit electrically connected to the current sensor;
a controller electrically connected to the sampling circuit and configured to provide a drive signal; and
a drive circuit electrically connected to the controller, wherein the drive circuit is configured to:
receive the drive signal from the controller; and
output a corresponding phase shift control signal to the inverter circuit of each of the N energy management circuits.