Zero-current-transition current-fed full-bridge PWM converter

Wang, Chen; Lin, Chang‐Hua; Lai, Yu-Hao; Ho, Carl Ngai Man

doi:10.1109/tencon.2011.6129261

Cited by 3 publications

(1 citation statement)

References 5 publications

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“…However, there are problems such as significant efficiency loss due to transformer leakage inductance [10,11] and high surge voltage [3,4,12,13,14]. As a solution, many methods have been proposed using active clamp auxiliary circuit [7,10,15,16,17,18,19,20,21,22], flyback or another circuits [6,8,18,23,24,25,26,27,28,29,30]. However, these topologies require auxiliary circuits, which complicate the topology.…”

Section: Introductionmentioning

confidence: 99%

A current fed full bridge converter with auxiliary resonant capacitor

Yamada,

Yonezawa,

Yamamoto

2023

IEICE Electron. Express

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This letter proposes a simpler and more efficient circuit scheme than the conventional current fed full bridge converter. In the proposed circuit, an auxiliary resonant capacitor is added to the conventional circuit to eliminate the adverse effects of leakage inductance of the transformer on the circuit operation, and at the same time, soft switching is achieved. As a result, switching losses were reduced and the efficiency was improved by approximately 4.7 % compared to the conventional method, which was confirmed on LTspice. First, the basic structure of the proposed circuit is shown, followed by the principle of operation. Next, the advantages and disadvantages of the proposed method are presented. Finally, we compare the proposed method with the conventional method.

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