Small-Signal Modeling of Asymmetric PWM Control Based Series Resonant Converter
Сохранить в:
| Опубликовано в:: | Electronics vol. 14, no. 17 (2025), p. 3394-3409 |
|---|---|
| Главный автор: | |
| Другие авторы: | |
| Опубликовано: |
MDPI AG
|
| Предметы: | |
| Online-ссылка: | Citation/Abstract Full Text + Graphics Full Text - PDF |
| Метки: |
Нет меток, Требуется 1-ая метка записи!
|
| Краткий обзор: | This paper presents a small-signal model of a series resonant converter under continuous conduction mode, based on asymmetric pulse-width modulation, which is commonly used under light-load conditions. When controlled using conventional pulse-frequency modulation, the series resonant converter (SRC) suffers from insufficient resonant current under light loads, leading to degraded soft-switching performance, increased switching losses, and reduced efficiency due to the need for higher switching frequencies to maintain output regulation. To address these issues, the asymmetric pulse-width modulation with a fixed switching frequency is required to improve efficiency. In this study, a small-signal model is derived using the Extended Describing Function method. Based on this model, transfer functions are obtained and verified through MATLAB(R2024a), switching model-based PLECS(4.7.5) simulations, and experimental results. |
|---|---|
| ISSN: | 2079-9292 |
| DOI: | 10.3390/electronics14173394 |
| Источник: | Advanced Technologies & Aerospace Database |