A Systematic Design Approach of Non-Isolated LED Driver Based on Integrated Bridgeless Boost PFC Rectifier and ZVS Class-D Resonant Converter

Authors

  • Chainarin Ekkaravarodome Department of Instrumentation and Electrical Energy Engineering, Faculty of Engineering, King Mongkut’s University of Technology North Bangkok
  • Kamon Jirasereeamornkul Department of Electronic and Telecommunication Engineering, Faculty of Engineering, King Mongkut’s University of Technology Thonburi
  • Yuttana Kumsuwan Department of Electrical Engineering, Faculty of Engineering, Chiang Mai University

DOI:

https://doi.org/10.37936/ecti-eec.2026243.266123

Keywords:

LED driver, integrated-stage, bridgeless boost PFC rectifier, non-isolated ZVS Class-D resonant converter

Abstract

A systematic design approach for a high-power-factor integrated-stage, light-emitting diode (LED) driver for street-lighting applications is presented. The proposed scheme integrates a totem-pole bridgeless boost powerfactor correction (PFC) rectifier as a PFC stage and non-isolated zero-voltage switching Class-D resonant converter as a driver stage into an integrated stage by sharing power switches and a DC bus capacitor. High power factor is inherently achieved by operating the totem-pole bridgeless boost PFC rectifier in discontinuous conduction mode. The proposed systematic design and circuit operation are fully detailed using simplified equivalent circuits, which significantly reduces implementation complexity. This thorough methodology further provides a clear, step-by-step guide for component calculation, loss analysis, and component stress evaluation. The validity of this approach is confirmed by experimental results from a 100-W LED streetlighting driver prototype.

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Author Biographies

Chainarin Ekkaravarodome, Department of Instrumentation and Electrical Energy Engineering, Faculty of Engineering, King Mongkut’s University of Technology North Bangkok

Chainarin Ekkaravarodome (Member, IEEE) received the B.Ind.Tech. degree in industrial electrical technology from the KMUTNB, Bangkok, Thailand, in 2003, and the M.E. and Ph.D. degrees in electrical engineering and energy technology from the KMUTT, Bangkok, in 2005 and 2009, respectively.

He is currently an Associate Professor with the Department of Instrumentation and Electrical Energy Engineering, Faculty of Engineering, KMUTNB. His current research interests include induction heating, LED drivers, soft-switching power converters, and wireless power transfer.

Kamon Jirasereeamornkul, Department of Electronic and Telecommunication Engineering, Faculty of Engineering, King Mongkut’s University of Technology Thonburi

Kamon Jirasereeamornkul received the B.E. and M.E. degrees in electrical engineering and the Ph.D. degree in electrical and computer engineering from the KMUTT, Bangkok, Thailand, in 1997, 2001, and 2006, respectively.

He is currently an Assistant Professor with the Department of Electronic and Telecommunication Engineering, Faculty of Engineering, KMUTT. His current research interests include induction heating, LED drivers, power-factor-correction circuits, resonant rectifiers, soft-switching power converters, and wireless power transfer.

Yuttana Kumsuwan, Department of Electrical Engineering, Faculty of Engineering, Chiang Mai University

Yuttana Kumsuwan (Senior Member, IEEE) received the Ph.D. degree in electrical engineering from CMU, Chiang Mai, Thailand, in 2007.

He is currently a Professor with the Department of Electrical Engineering, Faculty of Engineering, CMU. He is the author of more than 100 technical papers (journal articles and conference proceeding papers). His current research interests include renewable energy systems, electric vehicles, and control of power electronics.

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Published

2026-09-29

How to Cite

Ekkaravarodome, C., Jirasereeamornkul, K., & Kumsuwan, Y. (2026). A Systematic Design Approach of Non-Isolated LED Driver Based on Integrated Bridgeless Boost PFC Rectifier and ZVS Class-D Resonant Converter. ECTI Transactions on Electrical Engineering, Electronics, and Communications, 24(3). https://doi.org/10.37936/ecti-eec.2026243.266123

Issue

Vol. 24 No. 3 (2026): Articles in Press, Pre-proof - Regular Issue (October)

Section

Power Electronics

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Copyright (c) 2026 Assoc.Prof. Chainarin Ekkaravarodome, Ph.D., Asst.Prof. Kamon Jirasereeamornkul, Ph.D., Prof. Yuttana Kumsuwan, Ph.D.

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