{"title":"A new soft-switching high step-down DC-DC converter for voltage regular module application","authors":"Mahmood Vesali, Hosein Ranjbar, Farhad Ghafoorian","doi":"10.1049/cds2.12089","DOIUrl":null,"url":null,"abstract":"<p>This study proposes a high step-down DC-DC converter with minimum elements. In the proposed converter, soft switching condition is provided with only one auxiliary switch, which simplifies the structure of the converter. Leakage inductor energy is used to create a zero voltage condition; so the mutations created by this inductor are neutralised. The control of the auxiliary switch is complementary to the main switch, which does not require a new and complex control circuit. Due to low voltage gain, the proposed converter is suitable for use in voltage regulator modules. The proposed converter is completely analysed. To confirm the theoretical analysis, an experimental sample is made and tested at 15 W and the results are presented. Also, the efficiency of the proposed converter at full load is 97.5%.</p>","PeriodicalId":50386,"journal":{"name":"Iet Circuits Devices & Systems","volume":"16 2","pages":"136-146"},"PeriodicalIF":1.0000,"publicationDate":"2021-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ietresearch.onlinelibrary.wiley.com/doi/epdf/10.1049/cds2.12089","citationCount":"6","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Iet Circuits Devices & Systems","FirstCategoryId":"5","ListUrlMain":"https://onlinelibrary.wiley.com/doi/10.1049/cds2.12089","RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"ENGINEERING, ELECTRICAL & ELECTRONIC","Score":null,"Total":0}
引用次数: 6
Abstract
This study proposes a high step-down DC-DC converter with minimum elements. In the proposed converter, soft switching condition is provided with only one auxiliary switch, which simplifies the structure of the converter. Leakage inductor energy is used to create a zero voltage condition; so the mutations created by this inductor are neutralised. The control of the auxiliary switch is complementary to the main switch, which does not require a new and complex control circuit. Due to low voltage gain, the proposed converter is suitable for use in voltage regulator modules. The proposed converter is completely analysed. To confirm the theoretical analysis, an experimental sample is made and tested at 15 W and the results are presented. Also, the efficiency of the proposed converter at full load is 97.5%.
期刊介绍：
IET Circuits, Devices & Systems covers the following topics:
Circuit theory and design, circuit analysis and simulation, computer aided design
Filters (analogue and switched capacitor)
Circuit implementations, cells and architectures for integration including VLSI
Testability, fault tolerant design, minimisation of circuits and CAD for VLSI
Novel or improved electronic devices for both traditional and emerging technologies including nanoelectronics and MEMs
Device and process characterisation, device parameter extraction schemes
Mathematics of circuits and systems theory
Test and measurement techniques involving electronic circuits, circuits for industrial applications, sensors and transducers
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