A 12-48 V Wide-Vin 9-15 MHz Soft-Switching Controlled Resonant DCDC Converter
- verfasst von
- Juergen Wittmann, Tobias Funk, Thoralf Rosahl, Bernhard Wicht
- Abstract
The presented wide-Vin step-down converter introduces a parallel-resonant converter (PRC), comprising an integrated 5-bit capacitor array and a 300nH 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, 100-500 mA 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 50nF, 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.
- Organisationseinheit(en)
-
Fachgebiet Mixed-Signal-Schaltungen
- Externe Organisation(en)
-
Hochschule Reutlingen
Robert Bosch GmbH
- Typ
- Aufsatz in Konferenzband
- Seiten
- 348-351
- Anzahl der Seiten
- 4
- Publikationsdatum
- 2017
- Publikationsstatus
- Veröffentlicht
- Peer-reviewed
- Ja
- ASJC Scopus Sachgebiete
- Instrumentierung, Hardware und Architektur, Elektrotechnik und Elektronik, Computernetzwerke und -kommunikation
- Elektronische Version(en)
-
https://doi.org/10.1109/ESSCIRC.2017.8094597 (Zugang:
Geschlossen)
