Optimized gate driver for high-frequency buck converter

Volha Subotskaya, Vratislav Mihal, Mikhail Tulupov, Bernd Deutschmann

Research output: Contribution to journalArticleResearchpeer-review

Abstract

With the increasing system complexity in the automotive business sector the integration of efficient and low electromagnetic emission (EME) switch mode power supplies (SMPS) is crucial. The main methods to bring down EME and keep high efficiency are to introduce external filters on the input and output sides, to use spread spectrum techniques on the switching frequency and to control the switching activity of output driver in the desired range. This paper presents the concept of output driver implementation with adaptive driver strength control and dead time optimization for high frequency buck converters with external power MOSFETs. The proposed concept allows the following characteristics to be achieved: improved control of switching activity in a closely defined range, efficiency optimization by minimization the body diode forward conduction, reduction of the reverse recovery losses and zero voltage switching. All these can be realized despite the unknown MOSFET technological parameter distribution (propagation on/off delay, gate resistance of the package, Miller gate charge) and the external parameters (temperature, input voltage, load current). The proposed concept was implemented for a 1.2 V output voltage and a 1.8 MHz switching frequency buck converter.

Translated title of the contributionOptimized gate driver for high-frequency buck converter
LanguageGerman
Pages1-8
Number of pages8
Journale&i - Elektrotechnik und Informationstechnik
DOIs
StatusE-pub ahead of print - 9 Jan 2018

Fingerprint

Frequency converters
Switching frequency
Zero voltage switching
Electric potential
Diodes
Switches
Recovery
Industry
Temperature

Keywords

    ASJC Scopus subject areas

    • Electrical and Electronic Engineering

    Cite this

    Optimized gate driver for high-frequency buck converter. / Subotskaya, Volha; Mihal, Vratislav; Tulupov, Mikhail; Deutschmann, Bernd.

    In: e&i - Elektrotechnik und Informationstechnik, 09.01.2018, p. 1-8.

    Research output: Contribution to journalArticleResearchpeer-review

    Subotskaya, Volha ; Mihal, Vratislav ; Tulupov, Mikhail ; Deutschmann, Bernd. / Optimized gate driver for high-frequency buck converter. In: e&i - Elektrotechnik und Informationstechnik. 2018 ; pp. 1-8
    @article{889251bb5d244c59a96159fe6268645f,
    title = "Optimized gate driver for high-frequency buck converter",
    abstract = "With the increasing system complexity in the automotive business sector the integration of efficient and low electromagnetic emission (EME) switch mode power supplies (SMPS) is crucial. The main methods to bring down EME and keep high efficiency are to introduce external filters on the input and output sides, to use spread spectrum techniques on the switching frequency and to control the switching activity of output driver in the desired range. This paper presents the concept of output driver implementation with adaptive driver strength control and dead time optimization for high frequency buck converters with external power MOSFETs. The proposed concept allows the following characteristics to be achieved: improved control of switching activity in a closely defined range, efficiency optimization by minimization the body diode forward conduction, reduction of the reverse recovery losses and zero voltage switching. All these can be realized despite the unknown MOSFET technological parameter distribution (propagation on/off delay, gate resistance of the package, Miller gate charge) and the external parameters (temperature, input voltage, load current). The proposed concept was implemented for a 1.2 V output voltage and a 1.8 MHz switching frequency buck converter.",
    keywords = "body diode conduction, buck converter, dead time, EMC, EME, gate driver",
    author = "Volha Subotskaya and Vratislav Mihal and Mikhail Tulupov and Bernd Deutschmann",
    year = "2018",
    month = "1",
    day = "9",
    doi = "10.1007/s00502-017-0570-7",
    language = "deutsch",
    pages = "1--8",
    journal = "e&i - Elektrotechnik und Informationstechnik",
    issn = "0932-383X",
    publisher = "Springer Wien",

    }

    TY - JOUR

    T1 - Optimized gate driver for high-frequency buck converter

    AU - Subotskaya,Volha

    AU - Mihal,Vratislav

    AU - Tulupov,Mikhail

    AU - Deutschmann,Bernd

    PY - 2018/1/9

    Y1 - 2018/1/9

    N2 - With the increasing system complexity in the automotive business sector the integration of efficient and low electromagnetic emission (EME) switch mode power supplies (SMPS) is crucial. The main methods to bring down EME and keep high efficiency are to introduce external filters on the input and output sides, to use spread spectrum techniques on the switching frequency and to control the switching activity of output driver in the desired range. This paper presents the concept of output driver implementation with adaptive driver strength control and dead time optimization for high frequency buck converters with external power MOSFETs. The proposed concept allows the following characteristics to be achieved: improved control of switching activity in a closely defined range, efficiency optimization by minimization the body diode forward conduction, reduction of the reverse recovery losses and zero voltage switching. All these can be realized despite the unknown MOSFET technological parameter distribution (propagation on/off delay, gate resistance of the package, Miller gate charge) and the external parameters (temperature, input voltage, load current). The proposed concept was implemented for a 1.2 V output voltage and a 1.8 MHz switching frequency buck converter.

    AB - With the increasing system complexity in the automotive business sector the integration of efficient and low electromagnetic emission (EME) switch mode power supplies (SMPS) is crucial. The main methods to bring down EME and keep high efficiency are to introduce external filters on the input and output sides, to use spread spectrum techniques on the switching frequency and to control the switching activity of output driver in the desired range. This paper presents the concept of output driver implementation with adaptive driver strength control and dead time optimization for high frequency buck converters with external power MOSFETs. The proposed concept allows the following characteristics to be achieved: improved control of switching activity in a closely defined range, efficiency optimization by minimization the body diode forward conduction, reduction of the reverse recovery losses and zero voltage switching. All these can be realized despite the unknown MOSFET technological parameter distribution (propagation on/off delay, gate resistance of the package, Miller gate charge) and the external parameters (temperature, input voltage, load current). The proposed concept was implemented for a 1.2 V output voltage and a 1.8 MHz switching frequency buck converter.

    KW - body diode conduction

    KW - buck converter

    KW - dead time

    KW - EMC

    KW - EME

    KW - gate driver

    UR - http://www.scopus.com/inward/record.url?scp=85040227710&partnerID=8YFLogxK

    U2 - 10.1007/s00502-017-0570-7

    DO - 10.1007/s00502-017-0570-7

    M3 - Artikel

    SP - 1

    EP - 8

    JO - e&i - Elektrotechnik und Informationstechnik

    T2 - e&i - Elektrotechnik und Informationstechnik

    JF - e&i - Elektrotechnik und Informationstechnik

    SN - 0932-383X

    ER -