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. 09, 2014
Filed:
Apr. 20, 2011
Applicant:
Liang-rui Chen, Changhua, TW;
Inventor:
Liang-Rui Chen, Changhua, TW;
Assignee:
National Changhua University of Education, Changhua, TW;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02J 7/04 (2006.01); H02J 7/00 (2006.01);
U.S. Cl.
CPC ...
H02J 7/04 (2013.01); H02J 7/0093 (2013.01);
Abstract
A device and a method automatically trace and fix a resonance frequency of the batteries for offering an optimal charging frequency to the batteries. The device and method utilize a resonance frequency fthat charges batteries with a sinusoidal wave, automatic tracing function, and a fixed current. While the resonance frequency fis adopted in a charging device and served as the optimum charging frequency, the using life of the batteries could be extended.