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. 06, 2018
Filed:
Dec. 14, 2015
Applicant:
John Manford Wade, Ramona, CA (US);
Inventor:
John Manford Wade, Ramona, CA (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01R 31/36 (2006.01); H02J 7/00 (2006.01); G01D 9/00 (2006.01); G01R 19/00 (2006.01);
U.S. Cl.
CPC ...
G01R 31/362 (2013.01); G01D 9/00 (2013.01); H02J 7/0018 (2013.01); H02J 7/0021 (2013.01); H02J 7/0029 (2013.01); H02J 7/0093 (2013.01); G01R 19/0084 (2013.01); H02J 2007/004 (2013.01); H02J 2007/0037 (2013.01);
Abstract
A method and apparatus to detect cell voltage of each of a plurality of battery cells in a rechargeable battery pack is disclosed. The method comprises generating a square wave form with a positive phase and a negative phase, sending the square wave form to a first circuit that is connected to a battery cell and to a second circuit with matching components of the first circuit, and finally driving a matching voltage of the second circuit to become equivalent to the battery cell voltage for measurement.