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. 18, 2014
Filed:
Feb. 23, 2011
Tomomi Kaino, Sumoto, JP;
Tomomi Kaino, Sumoto, JP;
Sanyo Electric Co., Ltd., Osaka, JP;
Abstract
If a protection voltage (or setting voltage value) is continuously exceeded for two times (three times) by all of the voltage values of a battery block that are read periodically at a period of 250 ms, it is determined that the voltage of the battery block exceeds the protection voltage value of 4.32 V (or setting voltage value of 4.30 V) so that a target value of charging current is reduced to 0.1 C (or reduced to a value smaller than the currently-set target value) at the first determination. Every when it is detected that the voltage value exceeds the setting voltage value, the target value is reduced at a predetermined reduction rate. As a result, charging current is exponentially reduced whereby keeping the charging operation. At the second determination where the voltage of the battery block exceeds the protection voltage, a circuit breaker cuts off the charging current.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile