Title: Comprehensive study for two-stage isolated LED driver PFC topologies

Authors: Vinod Kumar Yadav; Manikant Kumar; Janardan Kundu; Atul Kumar Sharma; Ganesh P. Prajapat

Addresses: Malaviya National Institute of Technology Jaipur, 302017, India ' University College of Engineering and Technology, Bikaner 334004, India ' University College of Engineering and Technology, Bikaner 334004, India ' Government Engineering College Ajmer, 305025, India ' Government Engineering College Bikaner, 334004, India

Abstract: Ever-increasing energy demand has put enormous pressure on the remaining conventional sources for countries like India, the world's third-largest electricity consumer. An emphasis has been placed on reducing costs and electrical waste. A light-emitting diode (LED) has a promising note for this problem. The LED works in a constant current mode driven by a driver circuit, also known as an AC-DC system. This paper presents combinations of two-stage high PFC LED driver topologies driven by a few modified rectifiers as a first-stage driver. Their comparative analysis regarding selection criteria for components, control strategies, design analysis, power quality reflection, potential application, and some general guidelines depicting class C load is mentioned. This work, in general, is expected to be utilised by researchers and engineers to make an appropriate choice while selecting a driver circuit for LED and aims to improve LED technology. MATLAB/Simulink/PSIM environment is employed to study the comparative analysis of the discontinuous conduction mode (DCM) two-stage LED driver circuit. A 24 W/60 V hardware prototype is presented to verify the simulation results.

Keywords: buck; boost; buck-boost; discontinuous conduction mode; DCM; light-emitting diode; LED; PFC.

DOI: 10.1504/IJPELEC.2023.133063

International Journal of Power Electronics, 2023 Vol.18 No.3, pp.261 - 313

Received: 23 Feb 2022
Accepted: 21 Sep 2022
Published online: 29 Aug 2023 *

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