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Author In-Hwan Oh
Sponsorship IEEE Power Electon. Soc
Source IEEE Xplore Digital Library
Content type Text
Publisher Institute of Electrical and Electronics Engineers, Inc. (IEEE)
File Format PDF
Copyright Year ©2004
Language English
Subject Domain (in DDC) Natural sciences & mathematics ♦ Physics ♦ Electricity & electronics ♦ Technology ♦ Engineering & allied operations ♦ Applied physics
Subject Keyword Pulse width modulation inverters ♦ Resonance ♦ Switches ♦ RLC circuits ♦ Pulse inverters ♦ Pulse width modulation ♦ Switching circuits ♦ Switching converters ♦ Zero voltage switching ♦ Switching loss
Abstract This work presents a parallel-resonant DC link (PRDCL) circuit for soft switching main power devices with a single auxiliary power device for low conduction loss in single or three-phase inverter and converter applications. The proposed resonant network with one auxiliary power device is activated whenever it is needed to change the status of power devices connected to a DC link. The proposed resonant network is designed to force the DC link voltage to drop to zero before any power devices in the DC link are turned on. The auxiliary switch in the proposed resonant network is also turned on in a zero-voltage-switching (ZVS) condition. Therefore, the switching losses caused in all power devices in a full-bridge converter and resonant circuit can be effectively eliminated. In addition, there is no conduction loss in the auxiliary power device because the resonant circuit is not activated if there is no status change in the power devices connected in the DC link. Furthermore, the resonant swing voltage in the DC link is well restricted within a predefined voltage level so that the required voltage rating of all power devices in the DC link is nicely constrained. The detailed modes of operation and experimental results are provided to verify the operation.
Description Author affiliation: Fairchild Semicond., San Jose, CA, USA (In-Hwan Oh)
ISBN 0780383990
ISSN 02759306
Educational Role Student ♦ Teacher
Age Range above 22 year
Educational Use Research ♦ Reading
Education Level UG and PG
Learning Resource Type Article
Publisher Date 2004-06-20
Publisher Place Germany
Rights Holder Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Size (in Bytes) 455.80 kB
Page Count 6
Starting Page 1718
Ending Page 1723

Source: IEEE Xplore Digital Library