1.Key Laboratory of Infrared System Detection and Imaging Technologies, Shanghai Institute of Technical Physics, Chinese Academy of Sciences, Shanghai 200083, China;2.University of Chinese Academy of Sciences, Beijing 100049, China
the National Key R&D Program of China 2016YFB0500400;National Natural Science Foundation of China 51806231Supported by the National Key R&D Program of China (2016YFB0500400), National Natural Science Foundation of China (51806231)
The EMI filter of infrared cryocooler driving system was designed and simulated. With considering the characteristic of the crucial device in system, the co-simulation model of the system was built by using the appropriate algorithm. The interference mechanism was extracted and analyzed with the assist of the co-simulation model. Based on the impedance mismatch theory, the relationship of the filter performance and the impedance of the source and load was analyzed. Finally, based on interference mechanism, a method for filter design and optimization was raised, and it can optimize the filter’s performance and reduce redundancy effectively. A test was established and proved the feasibility and accuracy of the method.
ZHANG Jia-Kun, YANG Bao-Yu, SUN De-Xin. Design and simulation of a EMI filter for infrared cryocooler driving system[J]. Journal of Infrared and Millimeter Waves,2020,39(4):447~453Copy