Interleaved asynchronous delta-sigma modulation concept for dynamic power converters
- This paper proposes a novel synchronization concept for asynchronous delta-sigma modulators (ADSM), enabling its application for interleaved operation of parallel power converter structures. Two separate first-order ADSMs are coupled via a phase-locked loop, ensuring constant phase relationship between the modulators across their switching frequency ranges. Thus, the benefits of delta-sigma modulation such as spread spectrum qualities and lower average switching frequencies compared to pulse-width modulation can be used in dynamic interleaved power converters. In this paper, we derive system equations for the synchronization loop and confirm its functionality by simulations and measurements for a two-phase interleaved half-bridge.
| Author of HS Reutlingen | Hennig, Eckhard; Sönmez, Ertugrul; Schullerus, Gernot; Czerwenka, Philipp; Maier, Jannik |
|---|---|
| URL: | https://ieeexplore.ieee.org/document/10653983 |
| ISBN: | 978-3-8007-6262-0 |
| Published in: | PCIM Europe 2024; International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management |
| Publisher: | VDE Verlag |
| Place of publication: | Berlin |
| Document Type: | Conference proceeding |
| Language: | English |
| Publication year: | 2024 |
| Page Number: | 8 |
| First Page: | 3029 |
| Last Page: | 3036 |
| DDC classes: | 620 Ingenieurwissenschaften und Maschinenbau |
| Open access?: | Nein |
| Licence (German): |  In Copyright - Urheberrechtlich geschützt |
