PIN二极管变温度高频动态建模方法

The PIN diode model for high frequency dynamic transient characteristic simulation is important in conducted EMI analysis. The model should take junction temperature into consideration since equipment usually works at a wide range of temperature. In this paper, a temperature-variable high frequency dynamic model for the PIN diode is built, which is based on the Laplace-transform analytical model at constant temperature. The relationship between model parameters and temperature is expressed as temperature functions by analyzing the physical principle of these parameters. A fast recovery power diode MUR1560 is chosen as the test sample and its dynamic performance is tested under inductive load by a temperature chamber experiment, which is used for model parameter extraction and model verification. Results show that the model proposed in this paper is accurate for reverse recovery simulation with relatively small errors at the temperature range from 25 to 120 ℃.     

电动汽车动力电力电子装置的电磁兼容性研究现状

电动汽车动力电力电子装置的电磁兼容性对电动汽车的产业化进程有着重要的影响。动力电力电子装置通常由DC／DC变换器和／或DC／AC逆变器组成。学术上的研究通常主要将精力放在DC／AC逆变器上,针对DC／DC变换器的电磁兼容性研究主要集中在双向变换器12V电源端口的传导干扰方面。介绍了国内外在电动汽车动力电力电子装置的电磁兼容性方面的研究成果。