Method for operating an electrical power rectifier, as well as an electrical power rectifier
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United States of America Patent
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Dec 15, 2015
Grant Date -
Jun 26, 2014
app pub date -
Dec 18, 2013
filing date -
Dec 21, 2012
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Abstract
A method for operating an electrical power rectifier. The power rectifier comprises at least two branches that are connected in parallel to each other, each of the branches comprising at least two power semiconductor elements that are connected in series. The collector-emitter voltage Vce(t) and/or the collector current Ic(t) of one of the power semiconductor elements is detected by means of the method. Furthermore, it is determined whether at least one of the following conditions is met: dVce(t)/dt<(dVce/dt)crit, and/or dIc(t)/dt<(dIc/dt)crit, and or Ic(t_ent)
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