Compensation circuit, commutation cell and power converter controlling turn-on and turn-off of a power electronic switch
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United States of America Patent
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Sep 19, 2017
Issued Date -
N/A
app pub date -
Nov 6, 2014
filing date -
Nov 14, 2013
priority date (Note) -
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Abstract
The present disclosure relates to a compensation circuit for independently controlling turn-on and turn-off of a power electronic switch through a gate driver. The compensation circuit includes a circuit path sampling a first portion of a voltage induced across an inductance of the power electronic switch at turn-on. Another circuit path samples a second portion of the voltage induced across the inductance of the power electronic switch at turn-off. The compensation circuit further includes a gate driver reference connection configured to respectively supply the sampled portions of the voltage during turn-on and turn-off of the power electronic switch. A compensation circuit controlling a first power electronic switch in parallel with a second power electronic switch, a commutation cell and a power converter having a pair of parallel legs, in which each power electronic switch is provided with the compensation circuit, are also disclosed.
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