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Home»Articles»Selection of Inductor and Snubber Capactor to Optimize the Size and Efficiency of DC-DC Switching Power Converter

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Asian Journal of Engineering and Applied Technology (AJEAT)

Editor Dr. Seshadri Ramkumar
Print ISSN : 2249-068X
Frequency : Quarterly

Selection of Inductor and Snubber Capactor to Optimize the Size and Efficiency of DC-DC Switching Power Converter

Author : N. M. Mahesh Gowda and S. S. Parthasarathy
Volume 7 No.1 January-June 2018 pp 49-52

Abstract

This paper presents a selection of inductor and snubber capacitor in non-isolated synchronous DC-DC switching power converter. The circuit is made to operate in Synchronous Discontinuous Conduction Mode (SDCM)/Forced Continuous Conduction Mode (FCCM) of operation for minimum inductor value, to reduce the size, weight and cost of the converter. The turn off loss of the switch induced by SDCM of operation is minimized by connecting snubber capacitor across the transistor switch. Before the switch is turned ON, snubber capacitor requires certain amount of energy must be stored in the inductor to discharge the capacitor energy [1]. The question is how much capacitor and inductor value is required. A series of MATLAB script are executed to find minimum inductor value for FCCM of operation and to select snubber capacitor for maximum efficiency. Complementary gate signals are used to control the ON and OFF of main and auxiliary switch. SDCM of operation due to complementary control gate signal scheme, minimum turn on loss of the transistor switch and low diode reverse recovery loss are achieved. Thus the Zero Voltage Resonant Transition (ZVRT) of transistor switch is realized, both turn on and turn off loss is minimized and also removes the parasitic ringing in inductor current.

Keywords

SDCM, buck, boost, buck-boost, non-isolated, MATLAB script

Full Text:

References

[1] X. Huang, X. Wang, T. Nergaard, J. S. Lai, X. Xu and L. Zhu, “Parasitic Ringing and Design Issues of Digitally Controlled High Power Interleaved Boost Converters’’, IEEE Trans. Power Electron, Vol. 19, No. 5, pp.1341–1352, Sep. 2004.
[2] Jih-Sheng Lai and D. J. Nelson, “Energy management power converters in hybrid electric and fuel cell vehicles,” in Proceedings of IEEE, Industrial Electron, Taipei, Taiwan, Vol. 95, No. 4, pp. 766 – 777, April 2007.
[3] Sanjay Havanur, “Snubber Design for Noise Reduction in Switching Circuits”, Alpha and Omega Semiconductors, Application Note, pp. AN 100-1 – AN 100-3, May 2007.
[4] Junhong Zhang, Jih-Sheng Lai, Rae-Young Kim, and Wensong Yu, “High-Power Density Design of a Soft-Switching High-Power Bidirectional dc–dc Converter”,IEEE Trans. Power Electronics, Vol. 22, No. 4, pp. 1145-1153, July 2007.
[5] Hosein Farzanehfard, Dawood Shekari Beyragh and Ehsan Adib, “A Bidirectional Soft Switched Ultracapacitor Interface Circuit for Hybrid Electric Vehicles”, Energy Conversion and Management, Elsevier, pp. 3578–3584, 2008.
[6] Arvind Raj, “Calculating Efficiency”, Texas Instruments, Application Report, pp. 1-6, SLVA390-February 2010
[7] Premananda Pany, R.K. Singh and R.K. Tripathi, “Bidirectional DC-DC converter fed drive for electric vehicle system”, International Journal of Engineering, Science and Technology, Vol. 3, No. 3, pp. 101-110, 2011.
[8] Ebrahim Babaei, Mir Esmaeel Seyed Mahmoodieh and Mehran Sabahi, “Investigating Buck DC-DC Converter Operation in Different Operational Modes and Obtaining the Minimum Output Voltage Ripple Considering Filter Size”,Journal of Power Electronics, Vol. 11, No. 6, pp. 793-800, Nov. 2011.
[9] R. Ilker Kayaalp, Tugce Demirdelen and Mehmet Tumay, “Modelling and Analysis of Bidirectional DC-DC Converter”, International Journal for Innovation Education and Research, Online-ISSN: 2411-2933, Vol. 3, No. 11, pp. 16-30, Dec 2015.
[10] Lukasz J. Niewiara, Michał Skiwski and Tomasz Tarczewski, “Experimental study of snubber circuit design for SiC power MOSFET devices”, Computer Applications in Electrical Engineering, Vol. 13, pp. 120 – 131, 2015.
[11] Shafinaz A. Lopa, S. Hossain, M. K. Hasan and T. K. Chakraborty, “Design and Simulation of DC-DC Converters”,International Research Journal of Engineering and Technology, Vol. 03, No. 1, pp. 63 – 70, 2016 .
[12] N MMahesh Gowda and Dr. S S Parthasarathy, “Optimization of Synchronous Non-Isolated Bidirectional DC-DC Switching Power Converter”, Asian Journal of Electrical Sciences, ISSN: 2249- 6297, Vol.5, No.2, pp. 33-43, July-Dec 2016

Asian Journal of Engineering and Applied Technology is a peer-reviewed International research journal aiming at promoting and publishing original high quality research in all disciplines of engineering and applied technology. All research articles submitted to AJEAT should be original in nature, never previously published in any journal or presented in a conference or undergoing such process across the world. All the submissions will be peer-reviewed by the panel of experts associated with particular field. Submitted papers should meet the internationally accepted criteria and manuscripts should follow the style of the journal for the purpose of both reviewing and editing.

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This paper presents a selection of inductor and snubber capacitor in non-isolated synchronous DC-DC switching power converter. The circuit is made to operate in Synchronous Discontinuous Conduction Mode (SDCM)/Forced Continuous Conduction Mode (FCCM) of operation for minimum inductor value, to reduce the size, weight and cost of the converter. The turn off loss of the switch induced by SDCM of operation is minimized by connecting snubber capacitor across the transistor switch. Before the switch is turned ON, snubber capacitor requires certain amount of energy must be stored in the inductor to discharge the capacitor energy [1]. The question is how much capacitor and inductor value is required. A series of MATLAB script are executed to find minimum inductor value for FCCM of operation and to select snubber capacitor for maximum efficiency. Complementary gate signals are used to control the ON and OFF of main and auxiliary switch. SDCM of operation due to complementary control gate signal scheme, minimum turn on loss of the transistor switch and low diode reverse recovery loss are achieved. Thus the Zero Voltage Resonant Transition (ZVRT) of transistor switch is realized, both turn on and turn off loss is minimized and also removes the parasitic ringing in inductor current.

Editor-in-Chief
Dr. Seshadri Ramkumar
Department of Environmental Toxicology, Texas Tech University, Texas
[email protected]
Editorial Advisory Board
Dr. Kamarul Ariffin Bin Noordin
Department of Electrical Engineering, University of Malaya, Malaysia
[email protected]
Dr. Benjamin T.F. Chung
Department of Mechanical Engineering, University of Akron, Akron, USA
[email protected]
Dr. Mohd Faiz Bin Mohd Salleh
Department of Electrical Engineering, University of Malaya, Malaysia
[email protected]
Dr. Suhana Binti Mohd Said
Department of Electrical Engineering, University of Malaya, Malaysia
[email protected]
Dr. Norrima Binti Mokhtar
Department of Electrical Engineering, University of Malaya, Malaysia
[email protected]
Dr. Mohamadariff
Department of Electrical Engineering, University of Malaya, Malaysia
[email protected]

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    Editorial Note

    Editorial Dr. Seshadri Ramkumar

    Editor-in-Chief
    Dr. Seshadri Ramkumar
    Department of Environmental Toxicology, Texas Tech University, Texas
    [email protected]
    Editorial Advisory Board
    Dr. Kamarul Ariffin Bin Noordin
    Department of Electrical Engineering, University of Malaya, Malaysia
    [email protected]
    Dr. Benjamin T.F. Chung
    Department of Mechanical Engineering, University of Akron, Akron, USA
    [email protected]
    Dr. Mohd Faiz Bin Mohd Salleh
    Department of Electrical Engineering, University of Malaya, Malaysia
    [email protected]
    Dr. Suhana Binti Mohd Said
    Department of Electrical Engineering, University of Malaya, Malaysia
    [email protected]
    Dr. Norrima Binti Mokhtar
    Department of Electrical Engineering, University of Malaya, Malaysia
    [email protected]
    Dr. Mohamadariff
    Department of Electrical Engineering, University of Malaya, Malaysia
    [email protected]

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