An impedance-matching technique for suppressing spurious switching in flyback converters with parasitic effects

Yaakub, Muhamad Faizal and Mohd Radzi, Mohd Amran and Azis, Norhafiz and Shafie, Suhaidi and Azri, Maaspaliza and Mohd Noh, Faridah Hanim (2026) An impedance-matching technique for suppressing spurious switching in flyback converters with parasitic effects. Przeglad Elektrotechniczny, 102 (3). pp. 173-178. ISSN 0033-2097

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Abstract

The inherent galvanic isolation offered by flyback-based converters has attracted considerable interest across various applications, particularly in photovoltaic inverter systems. Despite all the advantages, the presence of parasitic elements introduces a significant design challenge. Distorted primary current at high-frequency switching can unintentionally trigger spurious switching pulses at the converter’s main switch which caused the converter operation changes unpredictably. A new impedance-match technique for the enhanced topology is suggested to address the issue by exploiting the frequency-dependent characteristics of inductance within the parallel circuit and the behavior of the flyback’s input impedance. A comprehensive analysis of the critical component selection is provided and the effectiveness of the proposed approach is validated and presented through experimental work on a developed 100-Watt laboratory prototype.

Item Type:	Article
Uncontrolled Keywords:	Flyback converter, Impedance-matching, Parasitic element, Primary current
Divisions:	Faculty Of Electrical Technology And Engineering
Depositing User:	Norfaradilla Idayu Ab. Ghafar
Date Deposited:	04 Sep 2026 01:18
Last Modified:	04 Sep 2026 01:18
URI:	http://eprints.utem.edu.my/id/eprint/30397
Statistic Details:	View Download Statistic

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