Multichannel battery charger
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United States of America Patent
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-
Jun 8, 1993
Grant Date -
N/A
app pub date -
Sep 16, 1991
filing date -
Sep 16, 1991
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A battery charger includes a microcontroller for simultaneously and independently charging the batteries of a number of battery powered devices. The battery charger includes a constant current source associated with each channel that is connectable to a device's battery. Each constant current source is switchable between a trickle charge state and a high charge state under the control of the microcontroller to charge the battery connected thereto quickly and safely. The microcontroller further performs diagnostics continuously throughout the charging of a battery to determine whether malfunctions have occurred in the microprocessor of the microcontroller, in the software of the microcontroller or in any of the current sources.
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