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Tapped-inductor buck converter for high-step-down DC-DC conversion
Abstract
The narrow duty cycle in the buck converter limits its application for high-step-down dc-dc conversion. With a simple structure, the tapped-inductor buck converter shows promise for extending the duty cycle. However, the leakage inductance causes a huge turn-off voltage spike across the top switch. Also, the gate drive for the top switch is not simple due to its floating source connection. This paper solves all these problems by modifying the tapped-inductor structure. A simple lossless clamp circuit can effectively clamp the switch turn-off voltage spike and totally recover the leakage energy. Experimental results for 12V-to-1.5V and 48V-to-6V dc-dc conversions show significant improvements in efficiency.
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The extreme duty cycle operation of conventional converters leads to high voltage and current stress, hence, it suffers from reduced controllability and extreme losses.
“Nevertheless, the extreme duty cycle operation of conventional converters leads to high voltage and current stress, hence, it suffers from reduced controllability and extreme losses [60].”
From A Comprehensive Review on Small Satellite Microgrids (2022) · cites this paper as [60]
Citations
Cites
No references could be resolved yet.
Research works printed but not linked: 14
- Lange, 1979, Tapped inductor improves efficiency for switching regulator, Electron. Design, 27, 114
- 10.1109/CIPE.1998.779667 · DOI
- Lenk, Introduction to the tapped buck converter, 155
- 10.1049/el:20010141 · DOI
- Park, The zero voltage switching (ZVS) critical conduction mode (CCM) buck converter with tapped-inductor, 1077
- Wei, Comparison of three topology candidates for 12V VRM, 245
- 10.1109/APEC.2001.911656 · DOI
- Lethellier, 2000, Buck Converter With Inductive Turn Ratio Optimization
- 10.1049/cp:20020158 · DOI
- 10.1109/INTLEC.1986.4794432 · DOI
- 10.1109/PESC.1987.7077193 · DOI
- 10.1109/APEC.1994.316287 · DOI
- Zhou, A high power density, high efficiency and fast transient voltage regulator module with a novel current sensing and current sharing technique, 289
- Chen, Integrated planar inductor scheme for multimode interleaved quasi-square-wave DC/DC converter, 201
Cited by
Sorted by citations
A Comprehensive Review on Small Satellite Microgrids
Yaqoob, M., Lashab, A., Vasquez, J. C., Guerrero, J. M., Orchard, M. E., & Bintoudi, A. D. (2022) · IEEE Transactions on Power Electronics · doi:10.1109/tpel.2022.3175093 · Cited by 93
“controllability and extreme losses [60].”
Uno, M., Inoue, M., Sato, Y., & Nagata, H. (2018) · Energies · doi:10.3390/en11102702 · Cited by 16
Metadata
- Authors
- Yao, K., Ye, M., Xu, M., & Lee, F. C.
- Affiliations
- Monolithic Power Systems (United States) (US)
- Virginia Tech (US)
- ORCID
- Lee, F.C.
- Venue
- IEEE Transactions on Power Electronics
- Published
- 2005-07
- Volume
- 20
- Issue
- 4
- Pages
- 775-780
- ISSN
- 0885-8993 (ISSN-L)
- OpenAlex
- W2119758109
- Cited by
- 278
- References
- 0
- Citations by year
- 2026: 3 · 2025: 12 · 2024: 10 · 2023: 13 · 2022: 13 · 2021: 14 · 2020: 12 · 2019: 17 · 2018: 21 · 2017: 20 · 2016: 19 · 2015: 18 · 2014: 19 · 2013: 15 · 2012: 10
- FWCI
- 9.49
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- IEEE Transactions on Power Electronics (publishedVersion)
- Topics
- Physical Sciences › Engineering › Electrical and Electronic Engineering › Advanced DC-DC Converters
- Physical Sciences › Engineering › Electrical and Electronic Engineering › Wireless Power Transfer Systems
- Physical Sciences › Engineering › Electrical and Electronic Engineering › Multilevel Inverters and Converters
- Keywords
- leakage inductance, converter efficiency
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