A PFC boost converter with reduced switching losses operating at a fixed switching frequency
- A single-phase fixed-frequency operated power factor correction circuit with reduced switching losses is proposed. The circuit uses the combination of a boost converter with an added clamp-switch, a pulse wave shaping circuit, and a standard control IC to discharge the transistor's output capacitance prior to its turn-on. In this way, a very low-complexity control circuit implementation to reduce switching losses or even achieve complete zero-voltage switching without additional sensors is possible. Moreover, this operation method is achieved at a constant switching frequency, possibly simplifying the design of the EMI filter and the converter's inductor. Experimental test results for a 100 W prototype converter are presented to validate the feasibility of the proposed operating method and corresponding circuit structure.
| Author of HS Reutlingen | Ulrich, Burkhard |
|---|---|
| URL: | https://ieeexplore.ieee.org/document/9907623 |
| ISBN: | 978-9-0758-1539-9 |
| Erschienen in: | 2022 24th European Conference on Power Electronics and Applications (EPE'22 ECCE Europe), 5-9 September 2022, Hanover, Germany, proceedings |
| Publisher: | IEEE |
| Place of publication: | Piscataway, NJ |
| Document Type: | Conference proceeding |
| Language: | English |
| Publication year: | 2022 |
| Tag: | AC-DC converter; boost; power factor correction; switching losses; zero-voltage switching |
| Page Number: | 9 |
| First Page: | 1 |
| Last Page: | 9 |
| DDC classes: | 600 Technik |
| Open access?: | Nein |
| Licence (German): |  In Copyright - Urheberrechtlich geschützt |
