A Low-Cost Soft-Switching High Step-Up Flyback Converter with Stacked Output Cells Conference Paper

abstract

• 2017 IEEE. A low-cost isolated high step-up dc-dc converter with a single switch and multiple output cells is proposed. The magnetizing inductance of the multiple-winding transformer and a multitude of capacitors are used to form a parallel LC resonant link. The capacitors create a Zero Voltage Switching (ZVS) condition at turn-on and turn-off and reduce the switching losses of the switch and diodes. Rate of voltage change (dv/dt) on all semiconductors is limited by the link capacitors, and the diodes turn off with suppressed reverse recovery transients. The converter requires no auxiliary clamps or switches to achieve soft-switching. An analytical approach is developed to establish a relationship between link parameters, input and output voltages, and link frequency. Experimental results on a 60 V to 600 V converter at 250 W are included to corroborate the design and operation.

name of conference

• 2017 IEEE Applied Power Electronics Conference and Exposition (APEC)

authors

• Toliyat, Hamid

published proceedings

• 2017 THIRTY SECOND ANNUAL IEEE APPLIED POWER ELECTRONICS CONFERENCE AND EXPOSITION (APEC)

author list (cited authors)

• Moosavi, M., Morya, A., & Toliyat, H. A.

citation count

• 5

complete list of authors

• Moosavi, Morteza||Morya, Ajay||Toliyat, Hamid A

publication date

• March 2017

publisher

• Institute of Electrical and Electronics Engineers (IEEE)  Publisher

published in

• n1048-2334ISSN  Journal

keywords

• Ac Link
• High Step-up
• High-frequency Link
• Isolated Dc-dc Converter
• Partial Resonant
• Soft-switching

Digital Object Identifier (DOI)

• 10.1109/apec.2017.7930928

International Standard Book Number (ISBN) 13

• 9781509053667

start page

• 1700

end page

• 1705

URL

• http://dx.doi.org/10.1109/apec.2017.7930928