Charge regulator for a radio telephone
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United States of America Patent
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-
Jun 23, 1998
Issued Date -
N/A
app pub date -
Jun 13, 1997
filing date -
Jun 30, 1993
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An electronic device, such as a radiotelephone, is connectable to a variable-level power source. The electronic device includes a rechargeable power source which is repowered responsive to application of operative power generated by the variable-level power source. The electronic device provides a constant charge current regulator for converting operative power of a constant voltage into operative power of a constant current to be applied to the rechargeable power source to recharge the rechargeable power source. The constant charge current regulator is made up of a series connected diode and resistor pair. According to a further aspect of the invention, when the rechargeable power source becomes fully recharged, application of the operative power can be reduced.
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