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Two-inductor non-isolated DC-DC converter with high step-up voltage gain

Two-inductor non-isolated DC-DC converter with high step-up voltage gain
Two-inductor non-isolated DC-DC converter with high step-up voltage gain
In this paper, an alternative non-isolated DC-DC converter with a high voltage boosting capability is proposed. Two inductors are used and one of them has its flux linkage increases during its charging period to achieve a high step-up voltage gain. Among the three integrated capacitors, one portrays the partial characteristic of the switched-capacitor technique, while the other two are connected in series across the load. With the two switches controlled using the same duty cycle, the proposed topology demonstrates the merits of a higher and wider range of step-up voltage gain when compared with recent topologies. In addition, a reduction in loss is induced and a higher efficiency is ensured with all the voltage stresses constrained within the output voltage. Operation of the proposed converter is analyzed and validated through experimental results obtained with a prototype.
DC-DC converter, High step-up gain, Non-isolated, Two-inductor
1598-2092
1069-1073
Lee, Sze Sing
47f36964-db27-4f5e-a4d3-4b0ba78ce29e
Chu, Bing
555a86a5-0198-4242-8525-3492349d4f0f
Lim, Chee Shen
616d0697-a5d5-4079-adaa-6686e5a758fe
Lee, Kyo-Beum
eed8c5c3-ed62-431d-8523-8c7b6411d159
Lee, Sze Sing
47f36964-db27-4f5e-a4d3-4b0ba78ce29e
Chu, Bing
555a86a5-0198-4242-8525-3492349d4f0f
Lim, Chee Shen
616d0697-a5d5-4079-adaa-6686e5a758fe
Lee, Kyo-Beum
eed8c5c3-ed62-431d-8523-8c7b6411d159

Lee, Sze Sing, Chu, Bing, Lim, Chee Shen and Lee, Kyo-Beum (2019) Two-inductor non-isolated DC-DC converter with high step-up voltage gain. Journal of Power Electronics, 19 (5), 1069-1073. (doi:10.6113/JPE.2019.19.5.1069).

Record type: Article

Abstract

In this paper, an alternative non-isolated DC-DC converter with a high voltage boosting capability is proposed. Two inductors are used and one of them has its flux linkage increases during its charging period to achieve a high step-up voltage gain. Among the three integrated capacitors, one portrays the partial characteristic of the switched-capacitor technique, while the other two are connected in series across the load. With the two switches controlled using the same duty cycle, the proposed topology demonstrates the merits of a higher and wider range of step-up voltage gain when compared with recent topologies. In addition, a reduction in loss is induced and a higher efficiency is ensured with all the voltage stresses constrained within the output voltage. Operation of the proposed converter is analyzed and validated through experimental results obtained with a prototype.

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More information

Published date: 20 September 2019
Keywords: DC-DC converter, High step-up gain, Non-isolated, Two-inductor

Identifiers

Local EPrints ID: 443149
URI: http://eprints.soton.ac.uk/id/eprint/443149
ISSN: 1598-2092
PURE UUID: cb7a33c9-f693-4afd-9aa8-e1908fc9f6b0
ORCID for Sze Sing Lee: ORCID iD orcid.org/0000-0003-2455-5783
ORCID for Bing Chu: ORCID iD orcid.org/0000-0002-2711-8717

Catalogue record

Date deposited: 12 Aug 2020 16:36
Last modified: 15 Sep 2021 01:59

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Contributors

Author: Sze Sing Lee ORCID iD
Author: Bing Chu ORCID iD
Author: Chee Shen Lim
Author: Kyo-Beum Lee

University divisions

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