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:
Sep. 28, 2010
Filed:
Jul. 25, 2007
Stefan Maireanu, Sunnyvale, CA (US);
Chun LU, San Jose, CA (US);
Jianping Xu, Chengdu, CN;
Xiaohua Lei, Chengdu, CN;
Zhitong Lei, Chengdu, CN;
Yongqiang Yu, Chengdu, CN;
Stefan Maireanu, Sunnyvale, CA (US);
Chun Lu, San Jose, CA (US);
Jianping Xu, Chengdu, CN;
Xiaohua Lei, Chengdu, CN;
Zhitong Lei, Chengdu, CN;
Yongqiang Yu, Chengdu, CN;
O2Micro International Ltd., Georgetown, Grand Cayman, KY;
Abstract
In one embodiment, a battery management system includes a charger controller for controlling a charging current of a battery according to a status of a load which is powered by the battery, and a counter coupled to the charger controller for determining a charging time according to such status. Advantageously, a first charging current is selected when the load is off. A second charging current that is less than the first charging current is selected when the load is on. Furthermore, a frequency of the counter is set to a first frequency when the load is off. The frequency is set to a second frequency that is less than the first frequency when the load is on.