Modified Active-Clamped Current-Fed DC–DC Push–Pull Converter

Author:

Miranda-Terán Eldin Mario1,Tofoli Fernando Lessa2ORCID,Torrico Bascopé Grover Victor3,Torrico Bascopé Rene Pastor1

Affiliation:

1. Department of Electrical Engineering, Federal University of Ceará, Fortaleza 60020-181, Brazil

2. Department of Electrical Engineering, Federal University of São João del-Rei, São João del-Rei 36307-352, Brazil

3. Huawei Sweden Technologies AB, 164 94 Kista, Sweden

Abstract

This work presents a modified version of the current-fed dc–dc push–pull converter associated with an active clamping circuit for mitigating voltage spikes on the primary-side switches. Unlike the traditional push–pull topology, saturation due to asymmetrical gating signals applied to the active switches is not likely to occur in the high-frequency transformer because the converter allows for connecting a blocking capacitor in series with the primary winding. In addition, the leakage inductance will not cause high voltage spikes on the primary-side semiconductors owing to the clamping capacitors. Since all active switches operate under the zero-voltage switching (ZVS) condition, one can obtain a high efficiency over a wide load range when comparing the structure with its hard-switching counterpart. Experimental results obtained from a laboratory prototype rated at 1 kW are presented and discussed to validate the theoretical claims.

Funder

Coordination for the Improvement of Higher Education Personnel

Brazilian National Council for Scientific and Technological Development

Minas Gerais Research Funding Foundation

National Institute of Science and Technology in Electric Energy

Publisher

MDPI AG

Subject

Energy (miscellaneous),Energy Engineering and Power Technology,Renewable Energy, Sustainability and the Environment,Electrical and Electronic Engineering,Control and Optimization,Engineering (miscellaneous),Building and Construction

Cited by 1 articles. 订阅此论文施引文献 订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献

1. High Frequency Isolated AC-DC Converter With High Power Factor Based On ZVS Push-Pull Converters;2023 IEEE 8th Southern Power Electronics Conference and 17th Brazilian Power Electronics Conference (SPEC/COBEP);2023-11-26

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