等离子体科学和技术（英文版）
等離子體科學和技術（英文版）
등리자체과학화기술（영문판）
PLASMA SCIENCE & TECHNOLOGY
2005年
6期
3170-3173
,共4页
conducted electromagnetic interference (EMI)%plasma cutting power supply%electromagnetic compatibility (EMC)%saber designer%filter design
A systematic approach to the design of the conducted electromagnetic interference (EMI) filter of high-density plasma cutting power supply has been developed. Converter components have been accurately modeled, with parasitic elements extracted to reveal their impacts on the EMI noises. Circuit simulations have been used to analyze and minimize the EMI noises.Conducted EMI noise measurement and filter design of this power supply have been achieved which successfully satisfy the FCC class B limits in the frequency range from 150 kHz to 30 MHz.The analyses and experimental results show that the designed filter guarantees that the required attenuation will be achieved.
