Enhanced Power Quality/Efficiency using Bridgeless Converter using Mo-SMPS

  IJETT-book-cover  International Journal of Engineering Trends and Technology (IJETT)          
© 2016 by IJETT Journal
Volume-32 Number-6
Year of Publication : 2016
Authors : Tanupriya sahu, Alok Sahu, M.K Pradhan
DOI :  10.14445/22315381/IJETT-V32P253


Tanupriya sahu, Alok Sahu, M.K Pradhan"Enhanced Power Quality/Efficiency using Bridgeless Converter using Mo-SMPS", International Journal of Engineering Trends and Technology (IJETT), V32(6),266-271 February 2016. ISSN:2231-5381. www.ijettjournal.org. published by seventh sense research group

Switched Mode Power Supplies have become increasingly popular for efficient methods of delivering power to an assortment of electronic devices. This thesis proposes a method of using a current fed push pull converter to provide active power factor correction and rectification in a single stage. While most AC-DC converters utilize a bridge rectifier to convert AC-DC and then perform DC-DC conversion, the proposed circuit will utilize its output diodes to perform rectification, thus eliminating the need for a bridge rectifier. This circuit will also inherently provide power factor correction because the input current has a continuous path for current flow due to the current fed topology where no time exists for both switches to be off. Through analog circuitry for the controller, multiple methods of AC main switching are tested, including isolation techniques using opt couplers, to prove the most efficient way to control a bidirectional switch. Simulations results with MATLAB has been shown.


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PFC, PI controller, Bridgeless rectifier, THD, DCM.