TY - JOUR
T1 - A Simple Method to Build a Linear Circuit Model for a Multi-Winding Transformer Used in EMI/EMC Analysis
AU - Sadeghi, Sajjad
AU - Gholizadeh, Mehdi
AU - Hackl, Herbert
AU - Pak, Amin
AU - Pommerenke, David
PY - 2024/9/13
Y1 - 2024/9/13
N2 - 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.
AB - 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.
U2 - 10.1109/LEMCPA.2024.3459795
DO - 10.1109/LEMCPA.2024.3459795
M3 - Article
SN - 2637-6423
VL - 6
SP - 138
EP - 143
JO - IEEE Letters on Electromagnetic Compatibility Practice and Applications
JF - IEEE Letters on Electromagnetic Compatibility Practice and Applications
IS - 4
ER -