DEVICE AND METHOD FOR CONTROLLING THE TURN-OFF OF A SOLID STATE SWITCH (SGTO)
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United States of America Patent
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app pub date -
Oct 8, 2015
filing date -
Feb 18, 2014
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Abstract
A circuit for turning OFF a thyristor. The circuit includes at least one first circuit element configured to provide a high reverse turn-OFF voltage to the thyristor gate for a predetermined period of time. Immediately following the predetermined period of time, at least one second circuit element provides a normal reverse turn-OFF voltage to the thyristor gate. The normal reverse turn-OFF voltage is substantially lower than the high reverse turn-OFF voltage.
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