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Content Provider | IEEE Xplore Digital Library |
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Author | Prasanna, U.R. Rathore, A.K. |
Copyright Year | 2012 |
Description | Author affiliation: Electrical and Computer Engineering, National University of Singapore, 117576 Singapore (Prasanna, U.R.; Rathore, A.K.) |
Abstract | A new modulation technique for soft-switching active-clamped current-fed full-bridge isolated dc/dc converter is propsoed. Hybrid soft-switching of semiconductor devices, i.e. zero current switching (ZCS) of top switches and zero voltage switching (ZVS) of bottom switches of full-bridge (H-bridge) as well as auxiliary switch is achieved. Active-clamp circuit absorbs the turn-off voltage spike limiting the peak voltage across the semiconductor devices permitting the use of low voltage low on-state resistance devices as well as assists in achieving ZVS/ZCS of semiconductor devices. Rectifier diodes on secondary commutate with ZCS. Detailed steady state operation, analysis and design of the converter for the proposed modulation have been presented. An experimental converter prototype rated at 200W has been developed and tested in the laboratory to demonstrate the accuracy of analysis and operation employing the proposed new modulation, and check the converter performance. Use of low voltage Infineon OptiMOS and SiC schottky diodes achieve better performance and efficiency. |
Starting Page | 1 |
Ending Page | 6 |
File Size | 849746 |
Page Count | 6 |
File Format | |
ISBN | 9781467345064 |
e-ISBN | 9781467345088 |
DOI | 10.1109/PEDES.2012.6484402 |
Language | English |
Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
Publisher Date | 2012-12-16 |
Publisher Place | India |
Access Restriction | Subscribed |
Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
Subject Keyword | Capacitors Zero voltage switching Modulation DC-DC power converters Inductors Zero current switching Rectifiers Active-clamp Current-fed dc/dc converter Soft-switching High-frequency Full-bridge |
Content Type | Text |
Resource Type | Article |
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