张方华
Personal Homepage
Paper Publications
A Study on Stray Capacitance of Ferrite Common Mode Chokes for EMI Filters
Hits:

Affiliation of Author(s):自动化学院

Journal:ICPE - ECCE Asia - Int. Conf. Power Electron. - ECCE Asia

Abstract:The stray capacitance of CM chokes consists of the material capacitance and the winding parasitic capacitances. The material capacitance is determined by the intrinsic material properties of the ferrite core. The influence of ferrite core material on stray capacitance of CM chokes are researched. The complex magnetic permeability (CMP) of a ferrite core is measured and the CMP characteristic is analyzed. The behavior of the material capacitance is inversely proportional to the square of turn N. Winding parasitic capacitances include turn-to-turn capacitance and turn-to-core capacitance. An analytical method is adopted to calculate the winding parasitic capacitances taking into the core physical construction and material properties. Based on the capacitance network model, the stray capacitance can be derived. The impedance characteristic of a CM choke is tested using impedance analyzer to extract the stray capacitance, and the analytical result is consistent with the measured result. © 2019 The Korean Institute of Power Electronics (KIPE).

Translation or Not:no

Date of Publication:2019-05-01

Co-author:Dong, Guangdong

Correspondence Author:zfh

Personal information

Professor
Supervisor of Doctorate Candidates

Gender:Male

Alma Mater:南京航空航天大学

Education Level:南京航空航天大学

Degree:Doctoral Degree in Engineering

School/Department:College of Automation Engineering

Discipline:Power Electronics and Transmission

Click:

Open time:..

The Last Update Time:..


Copyright©2018- Nanjing University of Aeronautics and Astronautics·Informationization Department(Informationization Technology Center)

MOBILE Version