Discharge control apparatus for power converting system with capacitor
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United States of America Patent
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Jul 28, 2015
Grant Date -
Dec 20, 2012
app pub date -
Mar 30, 2011
filing date -
Mar 31, 2010
priority date (Note) -
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status (Latency Note)
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Abstract
A discharge controller carries out discharge control by determining a voltage to be applied to a conduction control terminal of each of switching elements such that a current in a non-saturation region of one of the switching elements is lower than a current in a non-saturation region of the other thereof, and applying the voltage to the conduction control terminal of each switching element with an opening-closing member opening an electrical path to turn on the switching elements, resulting in short-circuit of both electrodes of a capacitor so that a discharge current is outputted from the capacitor based on the discharge control. A manipulator manipulates, based on a value of the discharge current, how to apply the voltage to the conduction control terminal of the one of the switching elements, thus controlling an amount of heat to be generated in the one of the switching elements.
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