Adaptive dead time control for ZVS GaN based CRM Totem Pole PFC

Yunfeng Liu*, Xiaosheng Huang, Yi Dou, Mingxiao Li, Ouyang Ziwei, Michael A.E. Andersen

*Corresponding author for this work

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

    Abstract

    This paper presents an adaptive dead time control for bridgeless GaN based MHz critical conduction mode (CRM) dual phase interleaved Totem Pole PFC. It can achieve the ZVS turn on for all switches in full input voltage range. The theoretical analysis for ZVS turn on both for the main switch and synchronous switch by adaptive dead time at full ranges has been investigated. Then the digital implementation of adaptive dead-time control was introduced. Finally, a prototype of 1kW dual phase GaN based MHz CRM Totem Pole PFC prototype was built to verify the feasibility of the proposed approach.

    Original languageEnglish
    Title of host publicationProceedings of 9th International Power Electronics and Motion Control Conference
    PublisherIEEE
    Publication date29 Nov 2020
    Pages438-442
    Article number9368082
    ISBN (Electronic)9781728153018
    DOIs
    Publication statusPublished - 29 Nov 2020
    Event9th IEEE International Power Electronics and Motion Control Conference - Nanjing, China
    Duration: 29 Nov 20202 Dec 2020

    Conference

    Conference9th IEEE International Power Electronics and Motion Control Conference
    Country/TerritoryChina
    CityNanjing
    Period29/11/202002/12/2020

    Bibliographical note

    Funding Information:
    ACKNOWLEDGMENT The authors would like to thank Samsung Electronics for financial support of this work.

    Publisher Copyright:
    © 2020 IEEE.

    Keywords

    • Adaptive dead time
    • Critical conduction mode
    • GaN based
    • Totem Pole PFC
    • ZVS turn on

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