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:
Jun. 17, 2025
Filed:
Jan. 06, 2025
Crrc Qingdao Sifang Rolling Stock Research Institute Co., Ltd., Qingdao, CN;
Lijun Zhang, Qingdao, CN;
Xuqiang Zhao, Qingdao, CN;
Haiyang Li, Qingdao, CN;
Bowei Zhu, Qingdao, CN;
Zhuangzhuang Shen, Qingdao, CN;
Xiantao Chu, Qingdao, CN;
Long Li, Qingdao, CN;
Maoqun Zhou, Qingdao, CN;
Abstract
The present application relates to a rectification control system, a charger and a control method for a charger. The rectification control system includes: a Vienna rectifier, which includes input terminals and output terminals, an output capacitor circuit, and a rectifying circuit which includes a u-phase bridge arm branch, a v-phase bridge arm branch and a w-phase bridge arm branch, each bridge arm branch comprising a switch device and a bidirectional switch unit which are connected in series; a voltage acquisition unit, which is connected to the three input terminals and is configured to acquire voltages U, Uand U; a fault detection unit, which is connected to the bidirectional switch units and is configured to detect whether any of the bidirectional switch units fails; and a control unit, which is connected to the voltage acquisition unit and the fault detection unit and is configured to control closing or opening of three switch devices according to voltage input format, voltage connection mode and detection result of the fault detection unit, so as to switch circuit and working mode, making a charger suitable for applications in multiple scenarios and multiple formats.