Frequency Synchronization Techniques for DC–DC Converters With Time-Based Control
Year: 2025
Type: article
Abstract: In this brief, a frequency synchronization method for time-based-controlled power converters is presented. The proposed synchronization technique makes it possible to precisely lock the internal oscillators frequency of the time-based controller (i.e., the power converter switching frequency) to any externally provided clock signal, without trading the dynamic performance. By leveraging the differential structure of the time-based controller, the proposed feedback loop operates orthogonally with respect to the main voltage regulation loop, minimizing any interaction with the latter. The presented frequency synchronization scheme has been implemented on a time-based buck converter in a 180-nm BCD process to fully verify the performance.
Authors: Alessandro Bertolini, Paolo Melillo, Mauro Leoncini, Alessandro Gasparini, Salvatore Levantino, Massimo Ghioni
Institutions: STMicroelectronics (Italy), Politecnico di Milano
Language: English
Topic: Advanced DC-DC Converters
Subfield: Electrical and Electronic Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W4416179036