Abstract
This paper discusses the analysis and design details of a bridgeless power factor corrector. The circuit topology of the proposed power converter is based on the combination of two DC/DC converters forming a two-channel structure of the power processing path. To meet the safety requirements, the converter circuit is equipped with a common ground link between the AC input voltage source and the DC output. The two-channel bridgeless power factor corrector operates under a power factor close to one and is robust to a short circuit fault. The resonance mode of the converter circuit prevents unpredictable overvoltage across the converter semiconductors. The device was modelled and simulated using MATLAB/Simulink software environment under varying load conditions. The results of numerical investigations have confirmed predicted device performance parameters and operational characteristics. The paper content will attract the attention of researchers and engineers working in the areas of electrical power engineering and power supplies.
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