Modeling and Operation of Resonant Switched-Capacitor DC-DC Converters Regulated by Switch Conductance under Overdamped Conditions

Verfasst von

Adrian Gehl, Bernhard Wicht

Abstract

Switch conductance regulation is used in favor over dynamic off-time modulation in resonant SC DC-DC converters due to its smaller output voltage ripple and operation at a constant frequency. However, at light load the resonant oscillations are significantly damped because of the increased on resistance R_dson of the power switches. A modeling approach is presented and experimentally verified showing that under these conditions it is beneficial to scale both R_dson and the switching frequency f_switch to further reduce switching losses while still maintaining a reasonably small output voltage ripple.

Details

Organisationseinheit(en): Institut für Mikroelektronische Systeme
Typ: Aufsatz in Konferenzband
Publikationsdatum: 22.06.2025
Publikationsstatus: Veröffentlicht
Peer-reviewed: Ja
ASJC Scopus Sachgebiete: Energieanlagenbau und Kraftwerkstechnik, Elektrotechnik und Elektronik, Steuerung und Optimierung, Modellierung und Simulation
Elektronische Version(en): https://doi.org/10.1109/COMPEL57166.2025.11121263 (Zugang: Geschlossen )