Design of a switching mode power supply with UPS features

D. K W Cheng, Wai Lok Chan

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review

Abstract

The proposed circuit integrates an isolated capacitive idling Cuk converter [1] and a buck converter to provide a switch-mode power supply with uninterruptible power supply (UPS) features. From the unique topology of capacitive idling Cuk converter, the input voltage regulation can be obtained on the primary side, while the load current regulation can be performed on the secondary side. In this arrangement, complete isolation can be achieved, and a wider difference in voltages between input mains and a low-voltage backup battery input. In addition, the separation of control provides further advantages such as independent short circuit protection and each output can be regulated independently for multiple output system. High efficiency, low cost and small size can also be achieved compared with the traditional UPS because it requires only DC-DC conversion in each mode.
Original languageEnglish
Title of host publicationProceedings of the International Conference on Power Electronics and Drive Systems
PublisherIEEE
Pages341-346
Number of pages6
Publication statusPublished - 1 Jan 1995
EventProceedings of the 1995 International Conference on Power Electronics and Drive Systems. Part 2 (of 2) - Singapore, Singapore
Duration: 21 Feb 199524 Feb 1995

Conference

ConferenceProceedings of the 1995 International Conference on Power Electronics and Drive Systems. Part 2 (of 2)
Country/TerritorySingapore
CitySingapore
Period21/02/9524/02/95

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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