Abstract
In this paper, a new Power Factor Correction controlling technique using bridgeless SEPIC (single-ended primary induction) AC-DC converter with fuzzy control is proposed. The converter design has single switching device of MOFET, to reduce switching losses. This design also has Voltage and Current loop controlling technique to improve the Power Factor and output Voltage. Fuzzy logic controllersetup also improves the controller responses in this circuit. The output voltage depends on the switching frequency of the MOSFET. This proposed converter produces low conduction loss, low total harmonic reduction and high power factor reaching near-unity. This converter circuit is simulated with universal input voltage of 190V - 220V DC output Voltage connected to resistive load. All the simulation work is done using MATLAB – Simulink.
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