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 language | English |
|---|---|
| Pages (from-to) | 138-143 |
| Number of pages | 6 |
| Journal | IEEE Letters on Electromagnetic Compatibility Practice and Applications |
| Volume | 6 |
| Issue number | 4 |
| DOIs | |
| Publication status | Published - Dec 2024 |
Keywords
- Capacitance
- Capacitance measurement
- Coils
- Inductance measurement
- Integrated circuit modeling
- Transformers
- Windings
- Circuit model
- Multiwinding transformer
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