求翻译：快恢复二极管(FRD)主要参数包括：反向恢复时间trr，软度因子S和反向恢复峰值电流Irr。为了减小trr，长期以来是采用扩金、扩铂、电子辐照等技术来降低器件中过剩载流子寿命，这些技术达到了减小trr的目的，但软度因子没有改善，同时增加了正向导通压降VF，使二极管在电路中功耗增大，严重制约了快恢复二极管在实际中优势的发挥。是什么意思？

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Fast Recovery Diode (FRD) main parameters include: reverse recovery time trr, soft scale factor S and reverse recovery peak current irr. In order to decrease the trr, has long been part of the employs spread, widening of Kim Platinum, electronic irradiated for lowering the devices contained in exces

Restores the diode FRD( main) parameter to include quickly: Restores time trr reverse, soft factor S and restores peak value electric current Irr reverse.In order to reduce trr, since long ago is uses platinum, electron radiation technologies and so on expands the gold, expands reduces in the compon

Fast recovery diode (FRD) main parameters include: reverse recovery time TRR, soft factors and peak reverse recovery current Irr. In order to reduce the TRR, has long been a gold expansion, expansion of Platinum, electron irradiation technology to reduce excess carrier lifetime, these technologies a

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