A Novel High Performance Bridgeless Ac-Dc Boost Converter
Journal Title: American journal of Engineering Research - Year 2016, Vol 5, Issue 8
Abstract
A new single phase high performance bridgeless AC-DC Boost converter is proposed. The converter is made bridgeless by the use of two unidirectional switches and two diodes at the input ac side for power conversion for both positive and negative half cycle. Because of the high frequency switching, the power factor of the circuit is inherently corrected and it requires a small filter to make the input current near sinusoidal with limited THD. The significant improvement in THD makes the circuit a good choice in applications needing AC-DC conversion with power conditioning. The circuit exhibits such better performances than conventional AC-DC boost converter with variable loads at constant frequency switching with no additional control circuits. The efficiency of the circuit is also satisfactory. Analysis and simulation results of the circuit are obtained by using software simulation. The main advantage of this new AC-DC converter is its superior power quality over conventional AC-DC boost converter.
Authors and Affiliations
S. M. AshrafulAlam Mohon1 ,, Golam Sarowar2 ,, Dr. Md. Ashraful Hoque3 ,, M. Bazlur Rashid4 ,, Tania Annur5
Keywords
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