IDEAS home Printed from https://ideas.repec.org/a/gam/jeners/v17y2024i18p4729-d1483270.html
   My bibliography  Save this article

A Flyback Converter with a Simple Passive Circuit for Improving Power Efficiency

Author

Listed:
  • Woo-Young Choi

    (Division of Electronic Engineering, Jeonbuk National University, Jeonju 54896, Republic of Korea)

Abstract

This paper proposes an effective method to improve the power efficiency of the flyback converter in the continuous conduction mode (CCM). The proposed converter uses a simple passive circuit to reduce the switching power losses. The current through the output diode can be shifted to a new branch where one diode, one inductor, and one auxiliary winding of the transformer are included. The output diode current can be reduced to zero for the zero-current switching of the output diode. The additional inductor is used to control the changing rate of the additional diode current to reduce the reverse-recovery current. Keeping the simplicity of the passive method, the proposed converter improves the power efficiency compared to the conventional converter. The circuit configuration and the operation principle are described. The design considerations are presented, including the simulation verification. The experimental results for a 45 W prototype are discussed to evaluate the performance of the proposed converter. The proposed converter has achieved a power efficiency of 93.5% for the rated load condition, improving the power efficiency. The applications of the proposed converter are also discussed for the future research directions.

Suggested Citation

  • Woo-Young Choi, 2024. "A Flyback Converter with a Simple Passive Circuit for Improving Power Efficiency," Energies, MDPI, vol. 17(18), pages 1-22, September.
    • Handle: RePEc:gam:jeners:v:17:y:2024:i:18:p:4729-:d:1483270
    as

    Download full text from publisher

    File URL: https://www.mdpi.com/1996-1073/17/18/4729/pdf
    Download Restriction: no
    File URL: https://www.mdpi.com/1996-1073/17/18/4729/
    Download Restriction: no
    ---><---

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:gam:jeners:v:17:y:2024:i:18:p:4729-:d:1483270. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    We have no bibliographic references for this item. You can help adding them by using this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: MDPI Indexing Manager (email available below). General contact details of provider: https://www.mdpi.com .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.