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:
Mar. 27, 2012
Filed:
Mar. 12, 2009
Guo Xing LI, Sunnyvale, CA (US);
Jiankui Guo, Shenzhen, CN;
Xin Dong, Shenzhen, CN;
Songtao Chen, Shenzhen, CN;
Ruichao Tang, Shenzhen, CN;
Chutao Zheng, Shenzhen, CN;
Celin He, Shenzhen, CN;
Guo Xing Li, Sunnyvale, CA (US);
Jiankui Guo, Shenzhen, CN;
Xin Dong, Shenzhen, CN;
Songtao Chen, Shenzhen, CN;
Ruichao Tang, Shenzhen, CN;
Chutao Zheng, Shenzhen, CN;
Celin He, Shenzhen, CN;
02Micro Inc., Santa Clara, CA (US);
Abstract
A circuit for charging a battery pack includes a power converter and a charger controller. The power converter is operable for receiving an input power, and for providing a charging power for charging the battery pack. The power converter provides galvanic isolation between input circuitry and output circuitry of the circuit. The input circuitry shares a first ground potential with the input power, and the output circuitry shares a second ground potential with the charging power. The charger controller in the input circuitry includes a modulator for generating a driving signal to drive the power converter and control the charging power.