Capacitor power source and charging/discharging control apparatus therefor
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United States of America Patent
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Apr 27, 2010
Grant Date -
Dec 6, 2007
app pub date -
May 10, 2007
filing date -
Jun 2, 2006
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A capacitor power source 1 including a plurality of capacitors comprises: an inflection-point voltage detection circuit (11) for detecting the inflection-point voltage of the capacitor based on a set voltage Vbot; an overvoltage detection circuit (12) for detecting the overvoltage Vful of the capacitor; and an initialization circuit (13) for putting charging current of the capacitor into bypass operation using initialization voltage Vini when an initialization mode is selected, wherein charging/discharging control is performed such that a discharging stop signal is generated based on a detection signal of the inflection-point voltage of any one of the plurality of capacitors, a charging stop signal is generated based on a detection signal of the overvoltage of any one of the plurality of capacitors, and an end signal of the initialization charging is generated based on a plurality of bypass operation signals.
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