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:
Jan. 09, 2001
Filed:
Jul. 22, 1999
Hiroyuki Fujita, Kyoto, JP;
Koichi Inoue, Kyoto, JP;
Rohm Co., Ltd., Kyoto, JP;
Abstract
A power supply controlling integrated circuit device have detection input terminals for receiving the voltages of a plurality of cells and a plurality of comparing means for comparing the voltages of the individual cells with a predetermined reference voltage. To control discharging or charging of the cells in accordance with the outputs of the comparing means, a mode terminal is provided for receiving a signal for designating the number of cells. Also provided are a first circuit that can forcibly bring part of the comparing means into a predetermined output state in accordance with the signal received at the mode terminal and a second circuit for excluding from monitoring the outputs of those comparing means which have been brought into the predetermined output state. This enables the power supply monitoring integrated circuit device to control different numbers of cells without requiring any separately-mounted component or the like.