Variable ON-Time Control Scheme for the Secondary Side Controlled Flyback Converter

Alexander Michael Connaughton, Arash P. Talei, Kennith Kin Leong, Klaus Krischan, Annette Muetze

Publikation: Beitrag in einer FachzeitschriftArtikelForschungBegutachtung

Abstract

This paper presents an analysis of a novel control approach for the Secondary Side Controlled Flyback concept, along with improved drain-source voltage sensing for more precise gate signals and reduced losses. In contrast to the existing control scheme for this concept, the approach presented here sustains constant switching frequency throughout the load range without any additional hardware; boosting efficiency and simplifying couple inductor design optimization. A 65W demonstrator shows minimal output ripple during load changes, peak efficiency of 89.90%, natural output current limiting in overload conditions, and utilizes a novel lossless synchronous-rectification sensing sub-circuit with minimal zero current crossing delay.

Originalspracheenglisch
Aufsatznummer8371652
Seiten (von - bis)2416-2426
Seitenumfang11
FachzeitschriftIEEE Transactions on Power Electronics
Jahrgang34
Ausgabenummer3
DOIs
PublikationsstatusVeröffentlicht - 1 Mär 2019

Fingerprint

Switching frequency
Hardware
Networks (circuits)
Electric potential
Design optimization

Schlagwörter

    ASJC Scopus subject areas

    • !!Electrical and Electronic Engineering

    Dies zitieren

    Variable ON-Time Control Scheme for the Secondary Side Controlled Flyback Converter. / Connaughton, Alexander Michael; Talei, Arash P.; Leong, Kennith Kin; Krischan, Klaus; Muetze, Annette.

    in: IEEE Transactions on Power Electronics, Jahrgang 34, Nr. 3, 8371652, 01.03.2019, S. 2416-2426.

    Publikation: Beitrag in einer FachzeitschriftArtikelForschungBegutachtung

    Connaughton, Alexander Michael ; Talei, Arash P. ; Leong, Kennith Kin ; Krischan, Klaus ; Muetze, Annette. / Variable ON-Time Control Scheme for the Secondary Side Controlled Flyback Converter. in: IEEE Transactions on Power Electronics. 2019 ; Jahrgang 34, Nr. 3. S. 2416-2426.
    @article{bb2f46a9c1b045609715922eb109b9f3,
    title = "Variable ON-Time Control Scheme for the Secondary Side Controlled Flyback Converter",
    abstract = "This paper presents an analysis of a novel control approach for the Secondary Side Controlled Flyback concept, along with improved drain-source voltage sensing for more precise gate signals and reduced losses. In contrast to the existing control scheme for this concept, the approach presented here sustains constant switching frequency throughout the load range without any additional hardware; boosting efficiency and simplifying couple inductor design optimization. A 65W demonstrator shows minimal output ripple during load changes, peak efficiency of 89.90{\%}, natural output current limiting in overload conditions, and utilizes a novel lossless synchronous-rectification sensing sub-circuit with minimal zero current crossing delay.",
    keywords = "AC-DC conversion, DC-DC conversion, flyback, secondary side flyback",
    author = "Connaughton, {Alexander Michael} and Talei, {Arash P.} and Leong, {Kennith Kin} and Klaus Krischan and Annette Muetze",
    year = "2019",
    month = "3",
    day = "1",
    doi = "10.1109/TPEL.2018.2844021",
    language = "English",
    volume = "34",
    pages = "2416--2426",
    journal = "IEEE Transactions on Power Electronics",
    issn = "0885-8993",
    publisher = "Institute of Electrical and Electronics Engineers",
    number = "3",

    }

    TY - JOUR

    T1 - Variable ON-Time Control Scheme for the Secondary Side Controlled Flyback Converter

    AU - Connaughton, Alexander Michael

    AU - Talei, Arash P.

    AU - Leong, Kennith Kin

    AU - Krischan, Klaus

    AU - Muetze, Annette

    PY - 2019/3/1

    Y1 - 2019/3/1

    N2 - This paper presents an analysis of a novel control approach for the Secondary Side Controlled Flyback concept, along with improved drain-source voltage sensing for more precise gate signals and reduced losses. In contrast to the existing control scheme for this concept, the approach presented here sustains constant switching frequency throughout the load range without any additional hardware; boosting efficiency and simplifying couple inductor design optimization. A 65W demonstrator shows minimal output ripple during load changes, peak efficiency of 89.90%, natural output current limiting in overload conditions, and utilizes a novel lossless synchronous-rectification sensing sub-circuit with minimal zero current crossing delay.

    AB - This paper presents an analysis of a novel control approach for the Secondary Side Controlled Flyback concept, along with improved drain-source voltage sensing for more precise gate signals and reduced losses. In contrast to the existing control scheme for this concept, the approach presented here sustains constant switching frequency throughout the load range without any additional hardware; boosting efficiency and simplifying couple inductor design optimization. A 65W demonstrator shows minimal output ripple during load changes, peak efficiency of 89.90%, natural output current limiting in overload conditions, and utilizes a novel lossless synchronous-rectification sensing sub-circuit with minimal zero current crossing delay.

    KW - AC-DC conversion

    KW - DC-DC conversion

    KW - flyback

    KW - secondary side flyback

    UR - http://www.scopus.com/inward/record.url?scp=85048019013&partnerID=8YFLogxK

    U2 - 10.1109/TPEL.2018.2844021

    DO - 10.1109/TPEL.2018.2844021

    M3 - Article

    VL - 34

    SP - 2416

    EP - 2426

    JO - IEEE Transactions on Power Electronics

    JF - IEEE Transactions on Power Electronics

    SN - 0885-8993

    IS - 3

    M1 - 8371652

    ER -