NDLI: A New PWM-Controlled Quasi-Resonant Converter for a High Efficiency PDP Sustaining Power Module

Content Provider	IEEE Xplore Digital Library
Author	Woo-Jin Lee Seong-Wook Choi Chong-Eun Kim Gun-Woo Moon
Copyright Year	1986
Abstract	A new pulsewidth modulation (PWM)-controlled quasi-resonant converter for a high-efficiency plasma display panel (PDP) sustaining power module is proposed in this paper. The load regulation of the proposed converter can be achieved by controlling the ripple of the resonant voltage across the primary resonant capacitor with a bidirectional auxiliary circuit, while the main switches are operating at a fixed duty ratio and fixed switching frequency. Hence, the waveforms of the currents can be expected to be optimized from the view-point of conduction loss. Furthermore, the proposed converter has good zero-voltage switching (ZVS) capability, simple control circuits, no high-voltage ringing problem of rectifier diodes, no dc offset of the magnetizing current and low-voltage stresses of power switches. Thus, the proposed converter shows higher efficiency than that of a half-bridge LLC resonant converter under light load condition. Although it shows the lower efficiency at heavy load, because of the increased power loss in auxiliary circuit, it still shows the high efficiency around 94%. In this paper, operational principles, features of the proposed converter, and analysis and design considerations are presented. Experimental results demonstrate that the output voltage can be controlled well by the auxiliary circuit using the PWM method.
Sponsorship	IEEE Power Electronics Society
Starting Page	1782
Ending Page	1790
Page Count	9
File Size	2128639
File Format	PDF
ISSN	08858993
Volume Number	23
Issue Number	4
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2008-07-01
Publisher Place	U.S.A.
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Pulse width modulation Pulse width modulation converters Multichip modules Switching converters Voltage control Zero voltage switching Magnetic resonance Plasma displays Switched capacitor circuits RLC circuits quasi-resonant converter PDP sustaining power module pulsewidth modulation
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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