Pi Controlled DC-DC Converter Based on Three-State Switching Cell
|International Journal of Engineering Trends and Technology (IJETT)||
|© 2015 by IJETT Journal|
|Year of Publication : 2015|
|Authors : Sithara Azeez, Sajini Susan Mathai
|DOI : 10.14445/22315381/IJETT-V29P237|
Sithara Azeez, Sajini Susan Mathai"Pi Controlled DC-DC Converter Based on Three-State Switching Cell", International Journal of Engineering Trends and Technology (IJETT), V29(4),196-203 November 2015. ISSN:2231-5381. www.ijettjournal.org. published by seventh sense research group
This paper introduces a new family of PWM DC-DC non-isolated converters By substituting the converter-cell all the DC-DC converter topologies (the buck configuration) is obtained. The new converters are generated using three-state commutation cells. Comprising two active switches, two diodes and coupled inductors. This topology has 3 switching stages, thus the name given as three state switching cell. In these circuits only part of load power is transferred by the switches so switching stress is less and high power output can be attained. Advantages of this topology are less size and volume of components, wide area of continuous conduction mode, low conduction and commutation losses, and low input and output current ripple. Due to these features, the new converters are suitable for low voltage and high current application. Step down converter have overlapping and non-overlapping modes. When duty ratio is less than 0.5, we can achieve nonoverlapping and continuous conduction mode. Simulations of the existing converter are done in MATALAB/SIMULINK and an experimental prototype was implemented.
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Buck Converter, Boost Converter, DC-DC Converters, Three State Switching Cell (3SSC).