06031302 is referenced by 30 patents and cites 21 patents.

An improved battery management circuit and system are disclosed. The improved battery management system relates to the type having at least one battery cell that is connected in a circuit with battery powered components, a current sensing resistance that is located in series within the circuit, voltage measurement circuitry that measures the voltage that develops across the current sensing resistance in proportion to the current flowing through the resistance, a cutout switch that is located in series within the circuit, and means for opening the cutout switch when the measured voltage is too high. The improvement is a single circuit element which functions as the current sensing resistance and as the cutout switch, the single circuit element having first and second electrodes and a control electrode that turns the first and second electrodes "on" and "off" and wherein the current sensing resistance is an on-resistance between the first and second electrodes.

Title
Battery management system with current measurement across on-resistance of semiconductor cutout switch
Application Number
8/940630
Publication Number
6031302
Application Date
September 30, 1997
Publication Date
February 29, 2000
Inventor
Christian Levesque
Fountain Valley
CA, US
Agent
Merchant & Gould
Assignee
Conexant Systems
CA, US
IPC
H01H 35/00
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