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. 06, 2015
Filed:
Nov. 15, 2010
Liang'an GE, Hangzhao, CN;
Xiaoli Yao, Zhejiang, CN;
Guichao Hua, Zhejiang, CN;
Xinke Wu, Zhejiang, CN;
Lijun Ren, Zhejiang, CN;
Liang'an Ge, Hangzhao, CN;
Xiaoli Yao, Zhejiang, CN;
Guichao Hua, Zhejiang, CN;
Xinke Wu, Zhejiang, CN;
Lijun Ren, Zhejiang, CN;
INVENTRONICS (HANGZHOU), INC., Hangzhou, Zhejiang, CN;
Abstract
A multi-path constant current driving circuit. In the multi-path constant current driving circuit, a current sharing transformer (T, T, T, T(n−1)) is provided in power supply circuits which are provided with adjacent rectifier and filter units (Z, Z, Z, Zn). A first winding of the current sharing transformer (T, T, T, T(n−1)) is connected between a first terminal of a secondary winding of a first power supply circuit and the rectifier and filter unit (Z, Z, Z, Zn) of the first power supply circuit. A second winding of the current sharing transformer (T, T, T, T(n−1)) is connected between a first terminal of a secondary winding of a second power supply circuit and the rectifier and filter unit (Z, Z, Z, Zn) of the second power supply circuit. In-phase current flows through the dotted terminal of the first winding and the synonym terminal of the second winding of the current sharing transformer (T, T, T, T(n−1)). The current sharing transformer (T, T, T, T(n−1)) is used for sharing the current between the power supply circuits which are provided with the adjacent rectifier and filter units (Z, Z, Z, Zn ). The driving circuit is provided with high current sharing efficiency, a small size and a low cost.