Volume 3 Number 3 (Jun. 2011)
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IJCEE 2011 Vol.3(3): 368-374 ISSN: 1793-8163
DOI: 10.7763/IJCEE.2011.V3.343

Design and Implementation of Firing Circuit for Single-Phase Converter

Tirtharaj Sen and Pijush Kanti Bhattacharjee

Abstract—The theme of the paper is to design and implement the firing circuit for a converter. The necessity of getting synchronized firing pulses for the gate of the thyristor is discussed. Out of many variety of firing circuits available, the ideas behind are the two most popularly used control circuits that are namely using ramp signal and using cosine signal. It shows how a cosine controls scheme work. Detail description and functioning of each block is explained along with the waveforms at the output of the blocks. Experimental results obtained from oscillographic displays at important points of the circuits are included. In this paper, we fabricate a hardware circuit which implements the cosine control technique, test the circuit and also check that desired gate pulses for the thyristors.

Index Terms—Thyristors or Silicon Controlled Rectifiers(SCRs), Bipolar Junction Transistors (BJTs), Metal Oxide Semiconductor Field Effect Transistors (MOSFETs), Insulated Gate Bipolar Transistors (IGBTs), Single Phase Converter, Comparator, Monoshot, Exclusive Or gate, SR Flip Flop,555 Timer.

Tirtharaj Sen is with the Department of Electrical Engineering, Asansol Engineering College, Kanyapur, Vivekananda Sarani, Asansol, Burdwan-713305. He was an Ex Assistant Professor & Head, Dept. of E.E, Bengal Institute of Technology and Management. He has twelve years Industrial experience and nearly six years teaching experience. (Phone: +91-9432851324, email: tirtha.bitm@gmail.com).
Pijush Kanti Bhattacharjee is with the Department of Electronics and Telecommunication Engineering, Assam University, [A Central University], Silchar, Assam, Pin-788011, India. He was an Ex Asssitant Director in Department of Telecommunications (DoT), Government ofIndia, India. He has possessed vast working experience in the field of Telecommunications including Mobile Communications, Image Processing,VLSI, Nanotechnology, Management etc. during last 30 years.(phone: +91-33-25954148, email: pijushbhatta_6@hotmail.com).
Manjima Bhattacharya is with Electrical Engineering Department at Murshidabad College of Engg. & Technology, Berhampore, West Bengal, India. (phone: +91-8016707785, email: tunambhattacharya@gmail.com).

Cite: Tirtharaj Sen and Pijush Kanti Bhattacharjee, "Design and Implementation of Firing Circuit for Single-Phase Converter," International Journal of Computer and Electrical Engineering vol. 3, no. 3, pp. 368-374, 2011.

General Information

ISSN: 1793-8163 (Print)
Abbreviated Title: Int. J. Comput. Electr. Eng.
Frequency: Quarterly
Editor-in-Chief: Prof. Yucong Duan
Abstracting/ Indexing: EI (INSPEC, IET), Ulrich's Periodicals Directory, Google Scholar, EBSCO, ProQuest, and Electronic Journals Library
E-mail: ijcee@iap.org

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