High gain DC-DC converter for PV applications

Hoiam Elobaid Mohamed, Abbas A. Fardoun

Research output: Chapter in Book/Report/Conference proceedingConference contribution

18 Citations (Scopus)


In this paper a new single-switch non-isolated, DC-DC converter, with high voltage transfer gain and reduced semiconductor voltage stress is proposed. The high gain converter is designed by integrating a boost with quadratic boost converters. The high voltage gain capability at moderate duty-cycle and low switch voltage stress enable the use of a lower voltage and RDS-ON MOSFET switch to reduce cost, switch conduction and turn-on losses. In addition, the low voltage stress across the diodes allows the use of Schottky rectifiers for alleviating the unfavorable reverse-recovery current, leading to a further reduction in the switching and conduction losses. Hence, improved thermal management is obtained. The proposed topology utilizes single non-floating power switches, hence simple PWM control can be used to regulate the output voltage. Additional features include integrating both inductors on the same core, hence higher converter power density is attained. The principle of operation and comparisons with other high step-up topologies are presented. Simulation and experimental results are also presented to demonstrate the effectiveness of the proposed scheme.

Original languageEnglish
Title of host publication2016 IEEE 59th International Midwest Symposium on Circuits and Systems, MWSCAS 2016
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781509009169
Publication statusPublished - Jul 2 2016
Event59th IEEE International Midwest Symposium on Circuits and Systems, MWSCAS 2016 - Abu Dhabi, United Arab Emirates
Duration: Oct 16 2016Oct 19 2016

Publication series

NameMidwest Symposium on Circuits and Systems
ISSN (Print)1548-3746


Other59th IEEE International Midwest Symposium on Circuits and Systems, MWSCAS 2016
Country/TerritoryUnited Arab Emirates
CityAbu Dhabi


  • Boost converter
  • DC-DC converter
  • High step-up converter
  • Soft switch coupled inductors

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering


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