short-time switching-off 中文意思是什麼
short-time switching-off
解釋
短時切斷-
What have made a large amount of harmonic and high electro - magnetic interference ( emi ) has two reasons. the first reason is mainly the hard - switching pwm mode. the switch turns on at high voltage and turns off at high current in a short time ( ns ), which leads to a high du / dt and di / dt and emi
其原因一是由於硬開關的pwm調節方式，電子開關速度很快（ ns數量級）在高電壓下導通，大電流下關斷，導致很高的du dt和di dt ，產生很強的尖峰脈沖，對周圍環境造成電磁干擾。 -
With the high frequency trend of power electronic technique development, the switching power diodes must be conducted and turn off very fast, that is, the diodes should have short reverse recovery time, low peak reverse current and soft recovery characteristics
電力電子技術高頻化的發展趨勢要求功率開關二極體必須具有快速開通和高速關斷的能力，即具有短的反向恢復時間（ t _ （ rr ） ） ，較小的反向恢復電流（ i _ （ rm ） ）和軟恢復特性。
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