NDLI: Design and Implementation of a Transformerless Single-Stage Single-Switch Double-Buck Converter With Low DC-link Voltage, High Step-Down, and Constant Input Power Factor Features

Content Provider	IEEE Xplore Digital Library
Author	Yu Chen Zhihao Zhong Yong Kang
Copyright Year	1986
Abstract	This paper presents a new transformerless single-stage single-switch (S4) converter which integrates a buck-type power factor correction cell with a buck-type dc-dc output cell in a special way. The proposed converter preserves the advantages of existing transformerless S4 converters, such as the low voltage stress across the dc-link capacitor, low current stress of the switch, and high step-down input-to-output voltage. Moreover, the proposed converter provides a new attractive feature, i.e., its input power factor always keeps constant even when the line- and load-conditions vary. These characteristics make the proposed converter cost-efficient, easy-to-design, and suitable for the low-power and nonisolated applications. The principle and analysis of the proposed converter are presented in this paper, and a design example is also given to show the validity of analysis.
Sponsorship	IEEE Power Electronics Society
Starting Page	6660
Ending Page	6671
Page Count	12
File Size	1538739
File Format	PDF
ISSN	08858993
Volume Number	29
Issue Number	12
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2014-01-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Capacitors Switches Rectifiers Stress Reactive power Power factor correction Low voltage single-stage single-switch (S4) converter LED driver power electronics power factor correction (PFC)
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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