High Resolution Mixed-Signal Pulse Width Modulator for High-Frequency DC-DC Converters

Tim McRae*, Kasper Paasch, Thomas Ebel

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

Abstract

This paper introduces a mixed-signal pulse-width modulator which uses a low clock-frequency digital pulse-width modulator and a binary-weighted resistive divider, ramp, and comparator to generate switching signals with sub-clock-cycle accuracy. A voltage reference is set prior to a desired switching event and a compared against a ramp, generating an asynchronous gate turn-off signal. The effective resolution of the PWM is increased shifting from a time-resolution required to a voltage resolution requirement. A discrete experimental prototype is built to verify the operation of the circuit. 29 ps time resolution is achieved on FPGA without the need for a PLL.

Original languageEnglish
Title of host publicationInternational Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management, PCIM Europe 2024
Number of pages6
PublisherMesago PCIM GmbH
Publication date2024
Pages2359-2364
ISBN (Electronic)9783800762620
Publication statusPublished - 2024
Event2024 International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management, PCIM Europe 2024 - Nuremberg, Germany
Duration: 11. Jun 202413. Jun 2024

Conference

Conference2024 International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management, PCIM Europe 2024
Country/TerritoryGermany
CityNuremberg
Period11/06/202413/06/2024
SeriesPCIM Europe Conference Proceedings
Volume2024-June
ISSN2191-3358

Bibliographical note

Publisher Copyright:
© VDE VERLAG GMBH · Berlin · Offenbach.

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