Research on Fast Transient Pulse Group Suppression Filter

Lv Pan(Dalian University of Technology)

Abstract

With the popularization of electronic products, the electromagnetic compatibility problem of electronic equipment is more and more prominent. The suppression of electric fast transient burst (EFT / B) generated by switching power supply is an important research content. Based on the principle of EFT / B, this paper analyzes the basic principles and methods of EFT filter design, and uses the "negative parameter cancellation method" to deal with the design of the filter according to the parasitic parameters of the components that make up the filter Sexual adjustment, to achieve effective suppression of EFT / B noise purposes.

Keywords

EFT / B; Filter; Parasitic parameters

References

IEC61000-4-4. Electromagnetic-Compatibility Testing and Measurement Techniques, Electrical Fast Transient / burst Immunity Test[S]. 1995.

ROUTRAY A, PRADHAN A K, RAO K P. A novel kalman filter for frequency estimation of distorted signals in power systems[J]. IEEE Transactions on Instrumentation and Measurement, 2002,51(3): 469-479.

WIGGINS C M, NICKEL F S, HANEY A J. Mobile transient measurement system[J]. IEEE Symposium on EMC, Session2C,1987:42-54.

DOI: http://dx.doi.org/10.26549/met.v1i1.323