Raj Senani

Netaji Subhas Institute of Technology, Electronics and Communication Engineering, Faculty Member

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Raj Senani was born on March 14, 1950 at Budaun, UP. He obtained B.Sc. in 1966 from Lucknow University, B.Sc. Engineering in Electrical Engineering in 1971 from HBTI, Kanpur, M.E. (Electrical Engineering) with Honours in 1974 from MNREC (now MNNIT), Allahabad and Ph.D. in Electrical Engineering for his work on the Realization of Some Classes of Active Networks in 1988, from MNREC, University of Allahabad.Dr. Senani held the positions of Lecturer (1975-1986) and Reader (1987-1988) at the EE Department of MNREC, Allahabad. He joined the ECE Department of the Delhi Institute of Technology, Delhi in 1988 as an Assistant Professor. He became a Professor in 1990. Since then, he has served as Head, ECE Department (1990-1993, 1997-1998), Head Applied Sciences (1993-1996), Head, Manufacturing Processes and Automation Engineering (1996-1998), Dean Research (1993-1996), Dean Academic (1996-1997), Dean Administration (1997-1999), Dean Post Graduate Studies (1997-2001) and Director, Netaji Subhas Institute of Technology (NSIT) during June 1996-September 1996, February 1997-June 1997 and May 2003-January 2004. He served as the Head, Division of ECE from 2000 till July 2014, as Dean, Faculty of Technology, University of Delhi, during July 2011-July 2014 and as Director of NSIT, from October 2008-till December 2014. Professor Senani's areas of teaching and research interest are Analog VLSI Circuits, Analog Signal Processing, Current-Mode Circuits, Electronic Instrumentation and Chaotic oscillators. He has authored/co-authored over 185 international research publications- which have received, as per Google Scholar, over 7000 citations with an h-index of 46 and i-10 index of over 130 so far. He has authored 05 book chapters and 05 monographs which include, `Current feedback operational amplifiers and their applications’, Springer Science Business Media, New York, 2013; Current Conveyors-variants, applications and hardware implementations, 2014, Springer; Sinusoidal Oscillators and Waveform generators using modern electronic circuit building blocks, Springer, 2016 and Gyrators, simulated inductors and related immittances-realisations and applications, IET (UK), 2020.
Address: New Delhi, India

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Waveform Generators Using Current Conveyors and CFOAs

Springer eBooks, 2016

Whereas a large amount of work has been done on the synthesis of Sinusoidal oscillators using Cur... more Whereas a large amount of work has been done on the synthesis of Sinusoidal oscillators using Current Conveyors and CFOAs, comparatively very little has been done on the realization of relaxation oscillators and non-sinusoidal wave form generators using the mentioned building blocks. The intention of this chapter is, therefore, to present the prominent work done in this direction till date.

Electronically Controllable OTA-C and Gm-C Sinusoidal Oscillators

Springer eBooks, 2016

OTA-C oscillators and Gm-C oscillators are attractive due to a number of advantageous features pr... more OTA-C oscillators and Gm-C oscillators are attractive due to a number of advantageous features provided by them, namely, electronically controllable frequency of oscillation as well as condition of oscillation and suitability for integrated circuit implementation in both bipolar and CMOS technologies since OTAs do not require any resistors and are implementable exclusively using transistors only. Furthermore, in circuits containing OTAs or transconductors (Gm), all functions can be invariably performed without requiring any passive resistors (of course, wherever needed, resistor(s) can always be simulated by OTA(s)/transconductor(s)). In this chapter, we present significant developments taken place in the area of realization of electronically controllable sinusoidal oscillators using OTA-C and Gm-C circuits.

State-variable Synthesis of Electronically-Controllable Sinusoidal Oscillators

American Journal of Electrical and Electronic Engineering, Jan 8, 2020

This paper presents a state-variable synthesis of a class of electronically-controllable sinusoid... more This paper presents a state-variable synthesis of a class of electronically-controllable sinusoidal oscillator circuits which employ Multiple output second generation controlled current conveyors (CCCII) as active elements, do not require any external passive resistors and employ only two grounded capacitors (GC). The systematic synthesis yields a class of fourteen new oscillators all of which provide independent electronic controls of both the frequency of oscillation and condition of oscillation through separate external bias currents. All the aforementioned features make the synthesized oscillators attractive from the view point of integrated circuit implementation. The workability of the derived circuits has been confirmed from SPICE simulations and some sample results are included. Based upon their performance, evaluated through simulations, the new circuits have been compared with those previously known as well as among themselves and the best circuits of the derived set have been identified.

Raj Senani

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