Design and Simulation of PI Controller for Double Output Luo Converter
|International Journal of Engineering Trends and Technology (IJETT)||
|© 2015 by IJETT Journal|
|Year of Publication : 2015|
|Authors : R.Subbulakshmy
|DOI : 10.14445/22315381/IJETT-V23P218|
R.Subbulakshmy"Design and Simulation of PI Controller for Double Output Luo Converter", International Journal of Engineering Trends and Technology (IJETT), V23(2),93-97 May 2015. ISSN:2231-5381. www.ijettjournal.org. published by seventh sense research group
Mirror-symmetrical double-output voltages are specially required in industrial applications and computer periphery circuits. Double output DC-DC converters can convert the positive input source voltage to positive and negative output voltages by two conversion paths. Because of the effect of parasitic elements, the output voltage and power-transfer efficiency of DC-DC converters are limited. The voltage-lift technique is a popular method that is widely applied in electronic circuit design. This technique gives a good way of improving circuit characteristics, and has been successfully applied for DCDC converters. As are single output (positive and negative output) Luo converters, double-output Luo converters are a series of new DC-DC step-up converters using only one switch. They are developed from advanced voltage-lift technique. These converters perform from positive to positive and negative DCDC voltage-increase conversion with high power density, high efficiency and cheap topology in a simple structure. They are different from any other existing DC-DC step-up converters and possess many advantages including high output voltage with small ripples. Therefore these converters will be widely used in computer peripheral equipment and industrial applications, especially for high double-output voltage projects. The present work is to design the Double Output Luo Converter and their operation is monitored and controlled by using PI control techniques. MATLAB software is used to study the dynamic characteristics and analyze the closed loop performances of these converters with resistive load under supply and load disturbances. The simulation results closely matches with each other and highlights the validity of the developed control scheme.
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PI, Positive conversion path and Negative conversion path.