Transformer Isolated Buck-Boost Converters
<p>Of the single-switch dc-to-dc converters, those with the buck-boost voltage transfer function offer most potential for transformer coupling, hence isolation, at the kilowatt level. This paper highlights the limitations of the traditional magnetic coupled, buck-boost topology. Then four spli...
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Academy Publishing Center
2016-12-01
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| Series: | Renewable Energy and Sustainable Development |
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| Online Access: | http://apc.aast.edu/ojs/index.php/RESD/article/view/145 |
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| author | Barry W. Williams |
| author_facet | Barry W. Williams |
| author_sort | Barry W. Williams |
| collection | DOAJ |
| description | <p>Of the single-switch dc-to-dc converters, those with the buck-boost voltage transfer function offer most potential for transformer coupling, hence isolation, at the kilowatt level. This paper highlights the limitations of the traditional magnetic coupled, buck-boost topology. Then four split-capacitor transformer-coupled topologies (specifically the Cuk, sepic, zeta, and a new, converters) with a common ac equivalent circuit are explored, that do not temporarily store core magnetic energy as does the traditional isolated buck-boost converter nor have a core dc magnetizing current bias, as with the sepic and zeta transformer coupled topologies. Core dc bias capacitive voltage compensation is a practical design constraint in three of the four topologies, while all four must cater for stray and leakage inductance effects. Simulations and experimental results for the new converter at 408W support the transformer-coupled, single-switch dc-to-dc converter concepts investigated.</p> |
| format | Article |
| id | doaj-art-9ae61aad83cc4039b1cb4c7e7ac2c157 |
| institution | Kabale University |
| issn | 2356-8518 2356-8569 |
| language | English |
| publishDate | 2016-12-01 |
| publisher | Academy Publishing Center |
| record_format | Article |
| series | Renewable Energy and Sustainable Development |
| spelling | doaj-art-9ae61aad83cc4039b1cb4c7e7ac2c1572025-08-20T03:28:54ZengAcademy Publishing CenterRenewable Energy and Sustainable Development2356-85182356-85692016-12-012211212510.21622/resd.2016.02.2.11274Transformer Isolated Buck-Boost ConvertersBarry W. Williams0Professor Barry W. Williams University of Strathclyde 16 Richmond St, Glasgow G1 1XQ, United Kingdom Phone: +44 141 552 4400<p>Of the single-switch dc-to-dc converters, those with the buck-boost voltage transfer function offer most potential for transformer coupling, hence isolation, at the kilowatt level. This paper highlights the limitations of the traditional magnetic coupled, buck-boost topology. Then four split-capacitor transformer-coupled topologies (specifically the Cuk, sepic, zeta, and a new, converters) with a common ac equivalent circuit are explored, that do not temporarily store core magnetic energy as does the traditional isolated buck-boost converter nor have a core dc magnetizing current bias, as with the sepic and zeta transformer coupled topologies. Core dc bias capacitive voltage compensation is a practical design constraint in three of the four topologies, while all four must cater for stray and leakage inductance effects. Simulations and experimental results for the new converter at 408W support the transformer-coupled, single-switch dc-to-dc converter concepts investigated.</p>http://apc.aast.edu/ojs/index.php/RESD/article/view/145switched mode power supplies, smps, dc-to-dc converters, buck boost converters, transformer isolated buck boost converters, cuk converter, sepic converter, zeta converter, inverse sepic converter |
| spellingShingle | Barry W. Williams Transformer Isolated Buck-Boost Converters Renewable Energy and Sustainable Development switched mode power supplies, smps, dc-to-dc converters, buck boost converters, transformer isolated buck boost converters, cuk converter, sepic converter, zeta converter, inverse sepic converter |
| title | Transformer Isolated Buck-Boost Converters |
| title_full | Transformer Isolated Buck-Boost Converters |
| title_fullStr | Transformer Isolated Buck-Boost Converters |
| title_full_unstemmed | Transformer Isolated Buck-Boost Converters |
| title_short | Transformer Isolated Buck-Boost Converters |
| title_sort | transformer isolated buck boost converters |
| topic | switched mode power supplies, smps, dc-to-dc converters, buck boost converters, transformer isolated buck boost converters, cuk converter, sepic converter, zeta converter, inverse sepic converter |
| url | http://apc.aast.edu/ojs/index.php/RESD/article/view/145 |
| work_keys_str_mv | AT barrywwilliams transformerisolatedbuckboostconverters |