Single-phase front-end bridgeless modified Landsman-Canonical Switching Cell PFC converter for arc welding applications

Abstract

This research paper proposes an enhanced power quality in bridgeless modified Landsman-Canonical switching cell (BMLCSC) converter used for arc welding power supplies. This proposed converter topology is presented for circuit component reduction to eliminate the need for a diode bridge rectifier and input filter to make the circuit more compact. The proposed converter is operated on discontinuous conduction mode (DCM). A closed loop PI control circuit with a single voltage sensor is utilized to achieve load regulation, line regulation with high efficiency and quick response. The exploratory performance of preferred framework is simulated using Matlab/Simulink and validated with a hardware prototype of 100 W, 48 V.

Design and Analysis of Boost Topology Based on Sheppard-Taylor Converter for Renewable Power Integration

“…To enhance static gain with lower switch stress, voltage multiplier technique is employed for typical nonisolated DC-DC converters. A unique step-up DC-DC converter that has combined SL, SC and voltage multiplier cell is introduced in [4]. Numerous extreme gain DC-DC converters that employ multilevel inverter are available in literature [14], [24].…”