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:
Aug. 07, 2012
Filed:
Sep. 08, 2009
Qingfei Zheng, Shenzhen, CN;
Xiangjun Dai, Shenzhen, CN;
Yaozhong MI, Shenzhen, CN;
Aimei Zhou, Shenzhen, CN;
Qingfei Zheng, Shenzhen, CN;
Xiangjun Dai, Shenzhen, CN;
Yaozhong Mi, Shenzhen, CN;
Aimei Zhou, Shenzhen, CN;
BYD Company Ltd., Shenzhen, CN;
Abstract
The present invention provides a battery array voltage equalization device comprising: a sampling unit which samples the battery voltage signals of the battery array according to a sampling control signal; an analog-to-digital converting unit which converts the sampled voltage signals into a digital voltage signal; a control unit which generates the sampling control signal and a driving signal based on the digital voltage signal; an equalization unit which equalizes the voltage signals of the battery array based on the driving signal; a filter unit which is connected to the equalization unit and the battery array. The present invention applies the filter unit to filter out the ripple signal generated during equalization.