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:
Dec. 28, 1999
Filed:
Mar. 16, 1999
Tshaw-Chuang Chen, Hsin-Chu, TW;
Zen-Jey Guey, Hsin-Chu, TW;
Industrial Technology Research Institute, Hsinchu Hsien, TW;
Abstract
A charge equalizer adapted a battery charger to equally charge series of connected battery strings, comprising battery voltage sensing circuits, a microcontroller, logic and driving circuits, and flyback converters, operates to prevent the batteries of the series of connected battery strings from overcharging by activating the flyback converters to draw out the overcharging currents of the batteries in the series of connected battery strings and charging the whole battery strings by recharging currents which proportion to said drawn out currents as detecting each of the battery voltages in the battery strings being higher than a pre-determined voltage value during charging and digitizing the detected battery voltage signals; so as to achieve the purposes of equal charge in each battery and hence to improve the life of the battery strings as a whole.