A novel step-up converter with an ultrahigh voltage conversion ratio

Faqiang Wang, Herbert Ho Ching Iu, Jing Li

    Research output: Contribution to journalArticle

    Abstract

    A new step-up converter with an ultrahigh voltage conversion ratio is proposed in this paper. Two power switches of such a converter, which conduct synchronically, and its output voltage, which has common ground and common polarity with its input voltage, lead to the simple control circuit. No abrupt changes in the capacitor voltage and the inductor current of the proposed step-up converter mean that it does not suffer from infinite capacitor current and inductor voltage. Two input inductors with different values can still allow the proposed step-up converter to work appropriately. An averaged model of the proposed step-up converter was built and one could see that it was still fourth-order even with its five storage elements. Some theoretical derivations, theoretical analysis, Saber simulations, and circuit experiments are provided to validate the effectiveness of the proposed step-up converter.

    Original languageEnglish
    Article number2693
    JournalEnergies
    Volume11
    Issue number10
    DOIs
    Publication statusPublished - 1 Oct 2018

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    Converter
    Voltage
    Electric potential
    Capacitor
    Capacitors
    Networks (circuits)
    Polarity
    Switches
    Fourth Order
    Switch
    Theoretical Analysis
    Output
    Experiments
    Experiment
    Simulation

    Cite this

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    abstract = "A new step-up converter with an ultrahigh voltage conversion ratio is proposed in this paper. Two power switches of such a converter, which conduct synchronically, and its output voltage, which has common ground and common polarity with its input voltage, lead to the simple control circuit. No abrupt changes in the capacitor voltage and the inductor current of the proposed step-up converter mean that it does not suffer from infinite capacitor current and inductor voltage. Two input inductors with different values can still allow the proposed step-up converter to work appropriately. An averaged model of the proposed step-up converter was built and one could see that it was still fourth-order even with its five storage elements. Some theoretical derivations, theoretical analysis, Saber simulations, and circuit experiments are provided to validate the effectiveness of the proposed step-up converter.",
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    A novel step-up converter with an ultrahigh voltage conversion ratio. / Wang, Faqiang; Iu, Herbert Ho Ching; Li, Jing.

    In: Energies, Vol. 11, No. 10, 2693, 01.10.2018.

    Research output: Contribution to journalArticle

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    AU - Wang, Faqiang

    AU - Iu, Herbert Ho Ching

    AU - Li, Jing

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    AB - A new step-up converter with an ultrahigh voltage conversion ratio is proposed in this paper. Two power switches of such a converter, which conduct synchronically, and its output voltage, which has common ground and common polarity with its input voltage, lead to the simple control circuit. No abrupt changes in the capacitor voltage and the inductor current of the proposed step-up converter mean that it does not suffer from infinite capacitor current and inductor voltage. Two input inductors with different values can still allow the proposed step-up converter to work appropriately. An averaged model of the proposed step-up converter was built and one could see that it was still fourth-order even with its five storage elements. Some theoretical derivations, theoretical analysis, Saber simulations, and circuit experiments are provided to validate the effectiveness of the proposed step-up converter.

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