Electricity: battery or capacitor charging or discharging – Serially connected batteries or cells – With discharge of cells or batteries
Patent
1990-04-23
1992-05-19
Hickey, R. J.
Electricity: battery or capacitor charging or discharging
Serially connected batteries or cells
With discharge of cells or batteries
320 22, 320 48, 455 89, H02J 710
Patent
active
051151820
ABSTRACT:
A battery charging controller which can be integrated within a battery powered device having a rechargeable battery includes a circuit for monitoring the energy consumption of the device from the battery, and for accumulating a measure of the energy consumed since the battery was previously charged. Energy consumption is determined based on the number of device functions being active during predetermined sampling time intervals. When the battery powered device is coupled to an external charging source, the charging of the battery, including the charging rate, is controlled by the energy monitoring circuit within the battery powered device. Rapid charging, slow charging, and discharging of the battery before charging are all readily controlled using an external charging source which requires no circuits for monitoring the battery charging process.
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DeLuca Michael J.
Ehmke Edward L.
Nguyen Tuan K.
Hickey R. J.
Ingrassia Vincent B.
Koch William E.
Macnak Philip P.
Motorola Inc.
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