A Hybrid-Switching Based Bridgeless PFC Converter for On-Board Battery Chargers using Predictive Current Control

Abstract

This paper presents a hybrid-switching based bridgeless PFC converter for on-board battery chargers. Using this novel topology the front-end full-bridge rectifier has been eliminated resulting in performance, size, and cost advantage over conventional bridge type PFC converters. Unity power factor and very low total harmonic distortion (THD) is achieved over wide input voltage and load current range using Predictive Current Control (PCC) for Hybrid-switching based bridgeless PFC converter. The control law is derived for an accurate model of the converter including parasitic elements. To investigate the dynamic performance of the PFC rectifier, the small-signal models are derived. Input voltage feed-forward compensation provides sinusoidal input current and a desired output voltage even if the input voltage is distorted. Simulation results show the effectiveness of using predictive current control for the hybrid-switching based bridgeless PFC converter.

Keywords

• Hybrid-Switching Based Bridgeless PFC Converter; On-Board Battery Charger; Predictive Current Control (PCC)

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