Battery pack

Details Battery pack Battery pack

1998-03-20

2000-10-24

Tso, Edward H.

Electricity: battery or capacitor charging or discharging

Battery or cell discharging

With charging

320149, 320150, H01M 1046

Patent

active

061372641

ABSTRACT:
A rechargeable battery pack with low powered, gas gauge circuitry for monitoring and accumulating various operating parameters of the rechargeable battery pack, includes a current monitor for measuring the current flow into and out of a battery cell in the rechargeable battery pack. An integrated current accumulator connected to the current monitor is used to maintain a measure of the net charge having flowed into and out of the battery cell. A charging current accumulator, which is also coupled to the current monitor, is used to maintain a measure of the total charge having flowed into the battery cell, while a discharging current accumulator is used to maintain a measure of the total charge having flowed out of the battery cell. A highly accurate oscillator is used to drive the accumulators to greatly increase the accuracy of the gas gauge functions derived therefrom.

REFERENCES:
patent: 5280231 (1994-01-01), Kato et al.
patent: 5284719 (1994-02-01), Landau et al.
patent: 5357203 (1994-10-01), Landau et al.
patent: 5432429 (1995-07-01), Armstrong, II et al.
patent: 5513235 (1996-04-01), Douglass et al.
patent: 5529069 (1996-06-01), Dias et al.
patent: 5532935 (1996-07-01), Ninomiya et al.
patent: 5621302 (1997-04-01), Shinohara
patent: 5627449 (1997-05-01), Fujiki
patent: 5629600 (1997-05-01), Hara
patent: 5818202 (1998-10-01), Miyamoto et al.
"DS2437 Smart Battery Monitor" Data Sheet; Dallas Semiconductor Corporation; 31 pages. no date.
"bq2010 Gas Gauge IC" Data Sheet; Benchmarq; Apr. 1995; 20 pages.
"bq2011 Gas Gauge IC For High Discharge Rates" Data Sheet; Benchmarq; Feb. 1996, 20 pages.
"bq2012 Gas Gauge IC With Slow-Charge Control" Data Sheet; Benchmarq; Sep. 1996; 20 pages.
"Preliminary bq2013H Gas Gauge IC For Power-Assist Applications" Data Sheet; Benchmarq; Apr. 1998; 24 pages.
"bq2014 Gas Gauge IC With External Charge Control" Data Sheet; Benchmarq; Dec. 1995; 22 pages.
"Preliminary bq2018 Power Minder.TM. IC" Data Sheet; Benchmarq; Sep. 1997; 16 pages.
"bq2040 Gas Gauge IC With SMBus Interface" Data Sheet; Benchmarq; Jun. 1998; 32 pages.
"bq2050 Lithium Ion Power Gauge.TM. IC" Data Sheet; Benchmarq; Sep. 1996; 22 pages.
"bq2092 Gas Gauge IC With SMBus-Like Interface" Data Sheet; Benchmarq; Nov. 1997; 28 pages.
"bq2945 Gas Gauge IC With SMBus Interface" Data Sheet; Benchmarq; Jun. 1998; 32 pages.

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