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:
Oct. 09, 2018
Filed:
Dec. 12, 2016
Crrc Qingdao Sifang Rolling Stock Research Institute Co., Ltd., Qingdao, CN;
Xianqi Lin, Qingdao, CN;
Lijun Zhang, Qingdao, CN;
Xuqiang Zhao, Qingdao, CN;
Shiying Sun, Qingdao, CN;
Abstract
A control system and control method for a phase shifted full bridge charger, wherein, the control system comprising a sampling system and a charger controller, the charger controller comprises a start and running determination unit, a soft start control unit, a running control unit and a smooth switchover control unit; the running control unit comprises a mode determination unit, a constant-voltage control unit, a total-current-limiting control unit and a charging-current-limiting control unit. During the operation of the charger, after soft start ends, switching occurs between a constant-voltage running state, a total-current-current-limiting running state and a charging-current-limiting running state according to differences in conditions, and the smooth switchover control unit enables the controller to switch between the operation states according to differences charger operation states to realize smooth switching within the charger control method and have high steady-state performance and dynamic performance.