Skip to main content
U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Modeling Based Examination of Conducted EMI Emissions from Hard- and Soft-Switching PWM Inverters

Published

Author(s)

Huibin Zhu, Jih-Sheng Lai, Yi-hua D. Tang, Allen R. Hefner Jr., Celia Chen

Abstract

For the purpose of investigation of electromagnetic interference (EMI) mechanisms in hard- and soft-switching PWM inverters, empirical models and comparative experiments were studied in both time-domain and frequency-domain. Models of the major circuit components including switching devices, passive components and interconnects were obtained with physics-based device modeling and time-domain reflectometry (TDR) for parasitics characterization. The inverter simulation was then constructed with all the empirical models included, and the results were compared with actual experiments to examine the significant roles of parasitic elements coupled with device switching dynamics in EMI generations. With separation of common- and differential-mode EMIs, the validity of the modeling approach is demonstrated and the soft-switching effects on EMI are discussed.
Proceedings Title
Proc., IEEE Industrial Applications Society Meeting
Conference Dates
October 3-7, 1999
Conference Location
Phoenix, AZ, USA
Conference Title
IEEE Transactions on Industry Applications Society

Keywords

device modeling, EMI, IGBT, interconnect metrology, time-domain, reflectometry

Citation

Zhu, H. , Lai, J. , Tang, Y. , Hefner Jr., A. and Chen, C. (1999), Modeling Based Examination of Conducted EMI Emissions from Hard- and Soft-Switching PWM Inverters, Proc., IEEE Industrial Applications Society Meeting, Phoenix, AZ, USA, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=30162 (Accessed September 26, 2023)
Created October 2, 1999, Updated October 12, 2021