BATTERY CHARGER, BATTERY CHARGING CIRCUITS, AND SEMICONDUCTOR INTEGRATED CIRCUIT DEVICES
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United States of America Patent
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Issued Date -
Oct 6, 2011
app pub date -
Feb 14, 2011
filing date -
Mar 31, 2010
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
There is provided a battery charging technique by which various battery charging control can be achieved even when power consumption of a battery is small. In a battery charger, in order not to turn OFF a power switch even when an ACG starting detection circuit recognizes that an output of a generator is not generated in a state in which the power consumption of the battery is small and the voltage of the battery is not dropping, a voltage of the battery in addition to phase terminal signals of a three-phase alternating-current generator is inputted to the ACG starting detection circuit, and the ACG starting detection circuit controls not to turn OFF the power switch when the output of the three-phase alternating-current generator is generated or when the voltage of the battery is equal to or higher than a predetermined voltage.
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