دانلود رایگان مقاله انگلیسی در مورد مبدل DC-DC تمام پل ZVS

An Adaptive ZVS Full Bridge DC-DC Converter with Reduced Conduction Losses and Frequency Variation Range

سال انتشار : 2015

نوع مقاله : IEEE JOURNALS & MAGAZINES

تعداد صفحات : 11

Abstract— This paper presents a description and analysis of a
full bridge converter with a novel passive and robust auxiliary
circuit for zero-voltage switching (ZVS) operation. A generalized
time-domain state-space analysis is provided to describe the
steady-state behavior of the auxiliary circuit. Complete
comparison between the well-known single-inductor auxiliary
circuit and the proposed one is presented. For a similar peak
current in the auxiliary branch, needed for ZVS, a minimum of
20 percent reduction in rms current is achieved to decrease the
conduction losses in the power switches and in the auxiliary
circuit. Also 65 percent reduction in switching frequency
variation is obtained. This narrower frequency range reduces the
need for very high frequency operation and the associated gate
driver losses as well as the difficulty of electromagnetic
interference (EMI) filter design. All the theoretical results are
experimentally verified.

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