The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 12, 2020
Filed:
Jul. 25, 2019
Shenzhen Vmax New Energy Co., Ltd., Shenzhen, Guangdong, CN;
Jun Liu, Guangdong, CN;
Yingying Feng, Guangdong, CN;
Shun Yao, Guangdong, CN;
Jinzhu Xu, Guangdong, CN;
SHENZHEN VMAX NEW ENERGY CO., LTD., Shenzhen, Guangdong, CN;
Abstract
A phase shift control method for a charging circuit is disclosed. The charging circuit includes a primary conversion circuit, a first secondary conversion circuit, and a second secondary conversion circuit. The controller causes a phase angle difference Φ between an ON/OFF waveform of power switches in the primary conversion circuit and an ON/OFF waveform of power switches in the first secondary conversion circuit. The controller collects an output current (Io) and an output voltage (Vo) of the first secondary conversion circuit, collected by the first secondary current collector and the first secondary voltage collector, carries out comparison and calculation between the collected output current and output voltage and a preset output current and output voltage, and adjusts the magnitude and positive and negative of the phase angle difference Φ according to the comparison result.