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. 05, 2017
Filed:
Nov. 30, 2015
Ryota Kageyama, Tokyo, JP;
Tsutomu Yamauchi, Tokyo, JP;
Nobuhito Tanaka, Tokyo, JP;
Takashi Takeda, Tokyo, JP;
Yoshihiro Satake, Tokyo, JP;
Takeshi Yamaguchi, Tokyo, JP;
Koji Koshimizu, Tokyo, JP;
Norihito Kawaguchi, Tokyo, JP;
Ryota Kageyama, Tokyo, JP;
Tsutomu Yamauchi, Tokyo, JP;
Nobuhito Tanaka, Tokyo, JP;
Takashi Takeda, Tokyo, JP;
Yoshihiro Satake, Tokyo, JP;
Takeshi Yamaguchi, Tokyo, JP;
Koji Koshimizu, Tokyo, JP;
Norihito Kawaguchi, Tokyo, JP;
MITSUMI ELECTRIC CO., LTD., Tokyo, JP;
Abstract
A battery protection IC has detection circuits to detect faults of an overcharge, an over-discharge, and an overcurrent of a secondary battery; a control circuit to protect the secondary battery, by controlling (dis)charging the secondary battery upon the fault; and a delay circuit to generate delay after the fault before the controlling. The IC includes a memory unit to store data for setting and adjusting a circuit characteristic of the IC; and a setting circuit to set and adjust the circuit characteristic, based on the data from the memory unit. The memory unit includes a pair of non-volatile memory cells to complementarily store one bit, and a latch circuit directly cross-coupled with the memory cells, for each bit of the data. The latch circuit statically outputs the data from the memory cells to the setting circuit when the IC is turned on.