Semiconductor integrated circuit device for monitoring cell...

Details Semiconductor integrated circuit device for monitoring cell... Semiconductor integrated circuit device for monitoring cell...

2011-02-22

2011-02-22

Tso, Edward (Department: 2858)

Electricity: battery or capacitor charging or discharging

Battery or cell discharging

With charging

C320S122000, C320S136000, C324S433000

Reexamination Certificate

active

07893656

ABSTRACT:
A semiconductor integrated circuit device formed by a trench dielectric isolation technique has input terminals connected to positive and negative terminals of secondary cells of an assembled battery and includes monitor circuits for respectively monitoring cell voltages of the cells. Each monitor circuit includes a cell voltage detection circuit, a reference voltage generation circuit, and a comparison circuit. The cell voltage detection circuit divides a voltage between the input terminals connected to the positive and negative terminals of a corresponding cell and detects the cell voltage based on the divided voltage. The reference voltage generation circuit generates a reference voltage from the cell voltage. The comparison circuit is powered by the cell voltage of the corresponding cell and compares the divided voltage with the reference voltage.

REFERENCES:
patent: 5691556 (1997-11-01), Saito et al.
patent: 7034580 (2006-04-01), Yano et al.
patent: 7446575 (2008-11-01), Yano et al.
patent: 7564217 (2009-07-01), Tanigawa et al.
patent: 2002/0047685 (2002-04-01), Perelle
patent: 2006/0082343 (2006-04-01), Sobue et al.
patent: 2006/0158201 (2006-07-01), Sobue et al.
patent: A-11-178226 (1999-07-01), None
patent: A-2003-070171 (2003-03-01), None
Office Action mailed Apr. 27, 2010 issued from the Japan Patent Office in the corresponding patent application No. 2007-166110 (and English translation).

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