Electric charging/discharging apparatus, plasma display panel, and electric charging/discharging method
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United States of America Patent
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-
Jul 13, 2010
Grant Date -
Jan 8, 2009
app pub date -
Jan 31, 2005
filing date -
Jan 31, 2005
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A charging/discharging apparatus (602) for charging a capacitance to be charged/discharged (Cp) includes: a recovery capacitor (Cr1) for recovering electric energy which has one terminal connected to a first power supply (GND) through first switch means (SW11) and another terminal connected to a second power supply (Vs+Vo) through second switch means (SW12); first path forming means (D11) which has one terminal connected to a connection point between the second power supply and the other terminal of the recovery capacitor and another terminal connected to the capacitance to be charged/discharged, and charges the capacitance to be charged/discharged through a resonant inductor (L1) when the first switch means is turned on; second path forming means (D12) which has one terminal connected to a connection point between the first power supply and the one terminal of the recovery capacitor and another terminal connected to the capacitance to be charged/discharged, and discharges the capacitance to be charged/discharged through the resonant inductor (L1) when the second switch means is turned on to recover electric energy to the recovery capacitor.
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