Four-level Resonant Flying Capacitor Converter Operating under Resonance featuring Soft-Switching and Voltage Regulation capabilities
Multilevel resonant converter topologies have been addressed to increase the power density and efficiency of step-down intermediate conversion stages, for low-voltage (LV) systems, due to the higher current demand, in addition to its inherent benefit of soft-switching capability and fixed static-ga...
Saved in:
| Main Authors: | , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Associação Brasileira de Eletrônica de Potência
2025-01-01
|
| Series: | Eletrônica de Potência |
| Subjects: | |
| Online Access: | https://journal.sobraep.org.br/index.php/rep/article/view/993 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| Summary: | Multilevel resonant converter topologies have been addressed to increase the power density and efficiency of step-down intermediate conversion stages, for low-voltage (LV) systems, due to the higher current demand, in addition to its inherent benefit of soft-switching capability and fixed static-gain ratio, while operating at, or above, resonance. This work proposes an extension for the multilevel Resonant Flying Capacitor Converter (ML-RFLCC), by demonstrating the potential soft-switching and voltage regulation capabilities of a 1:3 RFLCC while operating under and at the resonance. Due to the increased number of state variables, it presents a comprehensive state diagram, and normalization framework, to demonstrate the operating principle, and dependencies, of the different set of LC resonant tanks. In order to achieve such an operation, this work proposes an operating condition coefficient \(\Lambda\) to derive a design methodology. To validate the proposed operation condition, a 400V 500W GaN-based 1:3 RFLCC is presented, illustrating the theoretical correlation and non-idealities while operating under resonance.
|
|---|---|
| ISSN: | 1414-8862 1984-557X |