IJBTT

Modified Interleaved Buck Converter with Reduced Input Current and Number of Switches

	International Journal of Engineering Trends and Technology (IJETT)
	© 2017 by IJETT Journal
	Volume-50 Number-3
	Year of Publication : 2017
	Authors : Ashitha P, Smitha Paulose, Emmanual Babu P
	DOI :  10.14445/22315381/IJETT-V50P224

Citation 

Ashitha P, Smitha Paulose, Emmanual Babu P "Modified Interleaved Buck Converter with Reduced Input Current and Number of Switches", International Journal of Engineering Trends and Technology (IJETT), V50(3),155-160 August 2017. ISSN:2231-5381. www.ijettjournal.org. published by seventh sense research group

Abstract
There are many applications which needs low voltage DC supply in controlled manner. It includes various microcontrollers, several electronic ICs, laptops, traction signalling, electric vehicles etc. This DC-DC converter with interleaved technique can step down a high DC voltage to very low DC voltage with lesser voltage ripple and low value of inductor and capacitor. Since inductor and capacitor is having low value, the system will be of reduced size. With conventional buck chopper for converting high voltage to low voltage, very small duty cycle is required which further adds several limitations on different components and triggering circuitry. It requires relatively high values of inductor and capacitor. So the size of the system will be large. Comparatively the current ripple and voltage ripple will be more. The proposed converter reduces the complexity of the circuit and the input current also reduced. Here Simulations have been performed using MATLAB / SIMULINK. All results clearly show that very low voltage can be obtained using this topology. Moreover, the desired values of the output voltages can be numerically calculated which absolutely match with simulation results. Analysis is carried out by plotting the variation of voltage ripple with different frequencies.

Reference
[1] Nirmal, Piyush Kumar Jain, Amit Kumar, Interleaved DC to DC Buck Convert-ers For Low Power Applications, IEEE Transaction on Power Electronics, 2015 IEEE
[2] D. Agelidis, V.G. Sewan Choi Experimental veri cation of oatingoutput interleaved-input DC-DC high-gain transformer-less converter topologies" Power Electronics Specialists Conference, 2008, PESC 2008 IEEE
[3] G. Henn; R. Silva, P. Praa, L. Barreto, D. Oliveira Interleaved Boost Converter with High Voltage Gain", IEEE Transaction on Power Electronics 2011 IEEE
[4] G. A. L. Henn; L. H. S. C. Barreto; D. S. Oliveira Jr.; E. A. S. da Silva, A Novel Bidirectional Interleaved Boost Converter with High Voltage Gain", IEEE Transaction on Power Electronics 2008 IEEE
[5] R. Miftakhutdinov, J. Zbib, Synchronous Buck Converter with Increased E - ciency", Twenty Second Annual IEEE Applied Power Electronics Con-ference, APEC 2007, pp.714-748, Feb. 25 Mar. 1, 2007.
[6] Robert W. Erickson, Dragan Maksimovic, Fundamentals of Power Electronics" Springer Science Publication, Second Edition, pp. 73-74, 2005.
[7] Weihong Qiu, S. Mercer, Zhixiang Liang, G. Miller, Driver Deadtime Control and its Impact on System Stability of Synchronous Buck Voltage Regulator", IEEE Transactions on Power Electronics, vol. 23, no. 1, pp. 163- 171, Jan. 2008.
[8] Huang P-C, Wu W-Q, Ho H-H, Chen K-H. Hybrid buckboost feed forward and reduced average inductor current techniques in fast line transient and high ef-ciency buckboost converter", IEEE Transaction on Power Electronics, 2010; 25(3):719730.
[9] Lee Y-J, Khaligh A, Chakraborty A, Emadi A. Digital combination of buck and boost converters to control a positive buckboost converter and improve the output transients", IEEE Transaction on Power Electronics, 2009; 24(5):126779.
[10] Lee Y-J, Khaligh A, Emadi A, A compensation technique for smooth transi-tions in a non-inverting buckboost converter", IEEE Transaction on Power Electronics, 2009; 24(4):100215.
[11] Sefa, F. Batta Balci,Modeling and Implementation of dsPIC Based Interleaved Buck Converter", 4th International Conference on Power Engineering, Energy and Electrical Drives, 2013.
[12] Emilin Thomas Kangappadan, Della David, Interleaved Buck Converter With Continuous Supply Current Using OCC Technique", International Conference on Electrical, Electronics, and Optimization Techniques (ICEEOT), 2016.

Keywords
interleaved buck converter, DC-DC converter, Interleaved switches.