Desain Memodifikasi Suatu Pengatur Lebar Pulsa Asimetris Topologi Konverter DC/DC Resonansi

Moch Gozali, R.B
Journal article Jurnal Teknik Elektro Universitas Kristen Petra • March 2006 Indonesia

Abstract

A modified asymmetrical pulse width modulated resonant dc/dc converter employing an auxiliary circuit will be proposed in this paper. The auxiliary circuit consist of a network of two capasitors and an inductor. The aim of this network is to produce zero voltage switching (ZVS) over a wide input voltage range, while reducing the voltage stress on the resonant component. A detailed analysis and performance characteristics are presented. Experimental results for a 5V, 35W converter show an efficiency of 83 % at a constant operating frequency of 500 kHz. Using metal oxide semiconductor field effect transistors (MOSFETs) as synchronous rectifiers can further reduce power losses and improve the efficiency to be greater than 90 %.

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Journal

Jurnal Teknik Elektro Universitas Kristen Petra

Jurnal Teknik Elektro Universitas Kristen Petra is published biannually, in May and September, by... see more