A peak capacitor current pulse-train controlled buck converter with fast transient response and a wide load range

Sha, Jin and Xu, Duo and Chen, Yiming and Xu, Jianping and Williams, Barry W. (2015) A peak capacitor current pulse-train controlled buck converter with fast transient response and a wide load range. IEEE Transactions on Industrial Electronics. ISSN 0278-0046 (https://doi.org/10.1109/TIE.2015.2494851)

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Abstract

It is known that ripple-based control of a switching dc-dc converter benefits from a faster transient response than a conventional PWM control switching dc-dc converter. However, ripple-based control switching dc-dc converters may suffer from fast-scale oscillation. In order to achieve fast transient response and ensure stable operation of a switching dc-dc converter over a wide load range, based on a conventional pulse train control technique, a peak capacitor current pulse train (PCC-PT) control technique is proposed in this paper. With a buck converter as an example, the operating modes, steady-state performance and transient respond performance of a PCC-PT controlled buck converter are presented and assessed. To eliminate fast-scale oscillation, circuit and control parameter design consideration are given. An accurate discrete iteration model of a PCC-PT controlled buck converter is established, based on which, the effects of circuit parameters on stability of converter operating in a DCM mode, mixed DCM-CCM mode, and CCM mode are studied. Simulation and experimental results are presented to verify the analysis results.

  • Item type:Article
    ID code:54876
    Dates:
    Date
    Event
    26 October 2015
    Published
    26 October 2015
    Published Online
    15 September 2015
    Accepted
    Notes:© 2015 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
    Subjects:Technology > Electrical engineering. Electronics Nuclear engineering
    Department:Faculty of Engineering > Electronic and Electrical Engineering
    Depositing user: Pure Administrator
    Date deposited:11 Dec 2015 01:50
    Last modified:11 Nov 2024 11:15
    Related URLs:
    URI:https://strathprints.strath.ac.uk/id/eprint/54876
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