A Comparative Study on Single Switch and Quadratic Buck-Boost Converters
|International Journal of Engineering Trends and Technology (IJETT)||
|© 2017 by IJETT Journal|
|Year of Publication : 2017|
|Authors : Febi Thomas V, Ninu Joy, Kiran Boby
|DOI : 10.14445/22315381/IJETT-V50P219|
Febi Thomas V, Ninu Joy, Kiran Boby "A Comparative Study on Single Switch and Quadratic Buck-Boost Converters", International Journal of Engineering Trends and Technology (IJETT), V50(2),121-127 August 2017. ISSN:2231-5381. www.ijettjournal.org. published by seventh sense research group
Conventional voltage regulators are less capable of providing high voltage gain in an efficient manner for applications demanding steady dc voltage. The switching frequency of the power converter must be increased in order to achieve small size, light weight, and low noise. Many new converters which are modifications of the conventional voltage regulators are being proposed inorder to improve the converter performance characteristics. A comparative study on such converters are helpful in selecting the most suitable converter for a particular application. Here, the converters taken for comparison are quadratic buck-boost converter and single switch buck-boost converter. Both the converters are individual based on ripple factor, power density, and output voltage with same switching frequency, duty ratio and input voltage. The simulation of both the converters were performed using MATLAB/Simulink. The variation of output voltage with respect to duty ratio and output ripple with respect to switching frequency of both converters were tabulated and plotted. The prototype of 20kHz, 5W of single switch buck-boost converter was implemented using PIC16F877A microcontroller and the simulation results were compared.
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Single Switch Buck-Boost Converter, Quadratic Buck-Boost Converter, Voltage gain, Switch Stress.