A 12-48V wide-vin 9-15MHz soft-switching controlled resonant DCDC converter
- The presented wide-Vin step-down converter introduces a parallel-resonant converter (PRC), comprising an integrated 5-bit capacitor array and a 300 nH resonant coil, placed in parallel to a conventional buck converter. Unlike conventional resonant concepts, the implemented soft-switching control eliminates input voltage dependent losses over a wide operating range. This ensures high efficiency across a wide range of Vin= 12-48V, 100-500mA load and 5V output at up to 15MHz switching frequency. The peak efficiency of the converter is 76.3 %. Thanks to the low output current ripple, the output capacitor can be as small as 50 nF, while the inductor tolerates a larger ESR, resulting in small component size. The proposed PRC architecture is also suitable for future power electronics applications using fast-switching GaN devices.
| Author of HS Reutlingen | Wittmann, Jürgen; Funk, Tobias; Wicht, Bernhard |
|---|---|
| DOI: | https://doi.org/10.1109/ESSCIRC.2017.8094597 |
| ISBN: | 978-1-5090-5025-3 |
| Erschienen in: | ESSCIRC 2017 - 43rd IEEE European Solid State Circuits Conference : 11-14 Sept. 2017 |
| Publisher: | IEEE |
| Place of publication: | Piscataway, NJ |
| Document Type: | Conference proceeding |
| Language: | English |
| Publication year: | 2017 |
| Page Number: | 4 |
| First Page: | 348 |
| Last Page: | 351 |
| DDC classes: | 620 Ingenieurwissenschaften und Maschinenbau |
| Open access?: | Nein |
| Licence (German): |  In Copyright - Urheberrechtlich geschützt |
