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
Provided is a battery charging technique by which high efficiency of the battery charging can be always controlled no matter how the power consumption of the battery is changed. In a battery charger, a charging control circuit holds a charge/non-charge state of a battery during an arbitrary period of time in order to prevent the unbalance of phase voltages due to occurrence of transition between the charge/non-charge states during a short period of time and the reduction of the efficiency of the battery charging. Further, zero-crossing erroneous detection in a phase voltage of the output of a three-phase alternating-current generator due to noises is prevented.
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