NDLI: An Interleaved Winding-Coupled Boost Converter With Passive Lossless Clamp Circuits

Content Provider	IEEE Xplore Digital Library
Author	Wuhua Li Xiangning He
Copyright Year	1986
Abstract	An interleaved winding-coupled boost converter is proposed in order to realize ZCS turn-on condition and to achieve high step-up gain. The voltage gain is extended easily and the voltage stress on the switches is reduced with different turns ratios of the coupled inductors. The output diode reverse-recovery problem is alleviated due to the inherent leakage inductor of the winding-coupled inductors. The simple but effective passive lossless clamp circuits are introduced to limit the voltage stress on the switches when they turn off so that the low-voltage, high-performance devices with low conduction resistor can be used in the proposed converter to reduce the relative losses. The leakage energy is ultimately recovered to the load. The high efficiency of 90.7% at full load and the maximum efficiency of 92.6% are achieved in a 1-kW 40-V-input-to-380-V-output prototype for front-end application. There is more than 10% efficiency improvement with the passive lossless clamp circuits compared to the case with RCD dissipated snubbers. The efficiency of 5% improvement at full load is achieved with the proposed converter with passive lossless circuits compared to the conventional interleaved boost converter.
Sponsorship	IEEE Power Electronics Society
Starting Page	1499
Ending Page	1507
Page Count	9
File Size	1357750
File Format	PDF
ISSN	08858993
Volume Number	22
Issue Number	4
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2007-07-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Clamps Voltage Inductors Stress Switches Zero current switching Coupling circuits Diodes Switching circuits Resistors winding-coupled inductors Interleaved boost passive lossless clamp
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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