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:
May. 21, 1996
Filed:
Jan. 25, 1994
Applicant:
Inventors:
Takayuki Mino, Mihara, JP;
Toshiharu Kokuga, Sumoto, JP;
Assignee:
Sanyo Electric Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01M / ;
U.S. Cl.
CPC ...
320 21 ; 320 35 ; 320 39 ;
Abstract
By sensing battery voltage and temperature, a battery charger fully charges a battery even when a load is attached during charging. A control circuit suspends charging by detecting a change in battery voltage near a peak voltage. A charge restart section restarts charging depending on computations performed on the output from a temperature detection section. After charging is stopped, it is restarted if battery temperature is less than a set value, or if the rate of battery temperature rise is less than a set rate.