A Simple Method to Build a Linear Circuit Model for a Multiwinding Transformer Used in EMI/EMC Analysis

Research output: Contribution to journalArticlepeer-review

Abstract

This letter presents an easy-to-use technique for identifying lumped parameters of equivalent circuits for multiwinding transformers. The equivalent circuit helps to model electromagnetic-compatibility (EMC) noise. This letter takes two paths to create linear models for a multiwinding transformer: 1) RLC with physical meaning of all components, but limited to 10 MHz and 2) a nine-port S-parameter black-box model, but valid up to at least 1 GHz. The method is illustrated on a single-core transformer with four windings used in a flyback converter for an automotive 40–1000-V input auxiliary power supply for an 800-V battery system.
Original languageEnglish
Pages (from-to)138-143
Number of pages6
JournalIEEE Letters on Electromagnetic Compatibility Practice and Applications
Volume6
Issue number4
DOIs
Publication statusPublished - Dec 2024

Keywords

  • Capacitance
  • Capacitance measurement
  • Coils
  • Inductance measurement
  • Integrated circuit modeling
  • Transformers
  • Windings
  • Circuit model
  • Multiwinding transformer

Fingerprint

Dive into the research topics of 'A Simple Method to Build a Linear Circuit Model for a Multiwinding Transformer Used in EMI/EMC Analysis'. Together they form a unique fingerprint.

Cite this