Methods, systems, and devices for active charge control diodes
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United States of America Patent
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Oct 10, 2017
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app pub date -
Nov 18, 2015
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Nov 18, 2014
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Abstract
Methods and systems for active charge control diodes with improved reverse recovery characteristics. An extra control terminal is added on the side of a diode nearest to its p-n junction. The control terminal connects to a control region which extends from the drift region to the cathode surface and which is most preferably separated from the cathode region by an insulated trench. During turn-off, the control terminal is most preferably driven negative relative to the cathode just before reversing the polarity of the applied external voltage.
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