Please use this identifier to cite or link to this item: https://doi.org/10.1109/TIE.2012.2194977
Title: Extended range ZVS active-clamped current-fed full-bridge isolated DC/DC converter for fuel cell applications: Analysis, design, and experimental results
Authors: Prasanna, U.R.
Rathore, A.K. 
Keywords: Fuel cells
high-frequency (HF) dc/dc converter
renewable energy systems
zero voltage switching (ZVS)
Issue Date: 2013
Source: Prasanna, U.R., Rathore, A.K. (2013). Extended range ZVS active-clamped current-fed full-bridge isolated DC/DC converter for fuel cell applications: Analysis, design, and experimental results. IEEE Transactions on Industrial Electronics 60 (7) : 2661-2672. ScholarBank@NUS Repository. https://doi.org/10.1109/TIE.2012.2194977
Abstract: This paper presents analysis and design of zero-voltage switching (ZVS) active-clamped current-fed full-bridge isolated dc/dc converter for fuel cell applications. The designed converter maintains ZVS of all switches from full load down to very light load condition over wide input voltage variation. Detailed operation, analysis, design, simulation, and experimental results for the proposed design are presented. The additional auxiliary active clamping circuit absorbs the turn-off voltage spike limiting the peak voltage across the devices allowing the selection and use of low-voltage devices with low on-state resistance. In addition, it also assists in achieving ZVS of semiconductor devices. The converter utilizes the energy stored in the transformer leakage inductance aided by its magnetizing inductance to maintain ZVS. ZVS range depends upon the design, in particular the ratio of leakage and magnetizing inductances of the transformer. Rectifier diodes operate with zero-current switching. An experimental converter prototype rated at 500 W has been designed, built, and tested in the laboratory to verify the analysis, design, and performance for wide variations in input voltage and load. © 1982-2012 IEEE.
Source Title: IEEE Transactions on Industrial Electronics
URI: http://scholarbank.nus.edu.sg/handle/10635/55974
ISSN: 02780046
DOI: 10.1109/TIE.2012.2194977
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