, Qiu,,. Study on chaotic frequency modulation enhancing electromagnetic compatibility of switching converter. Journal of Electronics, 2005,33 (11), p 1983- 1987. Qiu, Chen Yanfeng. Study on reducing electromagnetic interference level of DC-DC converter by using chaotic mapping. P76-8 1。 Qiu, Chen Yanfeng. Experimental study on the effectiveness of chaotic modulation in suppressing EMI in switching converters. Journal of Electrical Technology, 2006,21(8), p97- 102. , Qiu,. Effectiveness of chaotic modulation in electromagnetic interference suppression of off-line switching converters. Journal of South China University of Technology. Volume 33, No.5, pp. 59-63. Li Zhizhong, Li Youxin. Study on reducing conducted electromagnetic interference of switching power supply by chaotic frequency modulation. Power Electronics Technology, 2008, 42(7), pp. 43-44. , Liu,. Comparative study on reducing conducted electromagnetic interference of switching power supply by periodic frequency modulation. Low voltage electrical apparatus, 2008, 17. Wang Zhiqiang. A new power supply for half-bridge series-parallel resonant high-frequency induction heating sealing machine. Power Electronics Technology, 2008, 42(5), pp. 42-44. Scientific research project "Research on New Scheme of Chaotic Soft-switching Converter with High Efficiency and High EMC Performance", supported by Dr. Guangdong Natural Science Foundation, 2006. 10-2008.9, project leader "Research on New Scheme and Experimental Model of Chaotic Soft-switching Converter with High Efficiency and High EMC Performance", China Postdoctoral Science Foundation (First Class Fund), July 2007-September 2008, Project leader "R&D and industrialization of 300KW energy-saving digital electroplating power supply device", Industry-University-Research Zhuhai Science and Technology Plan Project, 201.10, project leader (school) "R&D and industrialization of high-power intelligent fast charging system for electric vehicles", Guangdong strategic emerging industry new energy vehicle project, 20/kloc-0. 2008. 1, the main participant of the school, "Study on the Mechanism of Chaotic Switching Converter and the New Scheme to Solve the EMC Problem of Power Supply", National Natural Science Foundation of China, 2003.5438+0-2005.438+02, the second finisher.