Title :
Design of Inductor Winding Capacitance Cancellation for EMI Suppression
Author :
Shuo Wang ; Lee, Fred C. ; van Wyk, J.D.
Author_Institution :
Bradley Dept. of Electr. & Comput. Eng., Virginia Tech, Blacksburg, VA
Abstract :
In this paper, the parasitics in both DM and CM inductors are first discussed. The methods for both DM and CM inductor winding capacitance cancellation are then proposed. Prototypes are designed and tested, using network analyzer. Finally, the prototypes are applied to practical power converters and EMI is measured. Both small signal measurement and practical EMI measurement prove that the proposed methods can efficiently reduce the effects of winding capacitance and therefore improve the inductor´s filtering performance
Keywords :
capacitance; design engineering; electromagnetic interference; inductors; interference suppression; windings; CM inductors; DM inductors; EMI measurement; EMI suppression; common mode inductors; differential mode inductors; inductor winding; network analyzer; power converters; small signal measurement; winding capacitance cancellation; Delta modulation; Electromagnetic interference; Filtering theory; Frequency measurement; Inductors; Low pass filters; Noise cancellation; Parasitic capacitance; Power electronics; Prototypes; EMI noise; electromagnetic interference (EMI) filter; winding capacitance; winding capacitance cancellation;
Conference_Titel :
Power Electronics Specialists Conference, 2006. PESC '06. 37th IEEE
Conference_Location :
Jeju
Print_ISBN :
0-7803-9716-9
DOI :
10.1109/PESC.2006.1712184
