July 1981 to August 1987: Maintenance Engineer in Automobile plant of Tata Motors (TELCO, Jamshedpur).
September 1991 to June 1992: Lecturer in Electrical Engineering Dept. of IIT Kharagpur.
June 1992 to January 1997: Asst. Professor in Electrical Engineering Dept. of IIT Bombay.
January 1997 to January 2000: Visiting Fellow at Univ. of Minnesota, Minneapolis, USA.
April 2000 to August 2000: Scientific Advisor (temporary assignment) in a DST funded project on "Superconducting Magnet Based Energy Storage System" undertaken at IIT Kharagpur.
August 2000 to June 2006: Associate Professor in Electrical Engineering of IIT Kharagpur.
June 2006 to December 2009: Senior Director (R&D) in Emerson Network Power (India) based in Thane, Maharashtra.
February 2010 to June 2010: Visiting Fellow at Univ. of Minnesota, Minneapolis, USA.
July 2010 to May 2013: Senior Director (Technology) in Emerson Network Power (India) based in Thane, Maharashtra.
Joined SNU on 29th July, 2013.
Awarded following two Indian Patents (co-invented with colleagues at IIT Kharagpur):-
1. A NEW GATE DRIVE CIRCUIT FOR IGBTS AND MOSFETS FOR INDUSTRIAL ELECTRONICS APPLICATIONS" Indian Patent No: 201682 (granted on 23-Feb-2007).
2. "ELECTRONIC CIRCUITS FOR PROTECTION OF SUPERCONDUCTING COIL AGAINST OVER-VOLTAGES AND FOR FAST DETECTION AND PROTECTION OF S.C. COIL AGAINST QUENCH" Indian Patent No: 199441 (granted on 30th June, 2006).
Four more applications for patents (co-invented with colleagues at Emerson, Thane) have been filed with Mumbai Patent office and are being evaluated.
Following Publications (co-authored by my students and colleagues at IIT Kharagpur) have appeared in reputed International journals:
i. Subrata Banerjee, Dinkar Prasad
, and Jayanta Pal, "Large gap control in electromagnetic levitation", ISA Transactions (Elsevier Science), Vol.45, Issue-2, April 2006, pp 215-224.
ii. Bibhu Prasad Panigrahi, Dinkar Prasad
, and Sabysachi SenGupta, "A simple hardware realization of switching table based direct torque control of induction motor", Elsevier Science Publication on Electric Power Systems Research, Vol.77, Issue 2, Feb. 2007, pp 181-190
iii. Subrata Banerjee, Dinkar Prasad
, and Jayanta Pal, "Design, implementation and testing of a single axis levitation system for the suspension of a platform", ISA Transactions (Elsevier Science), Vol.46, Issue-2, April 2007, pp 239-246.
iv. Dinkar Prasad
, Bibhu Prasad Panigrahi, and Sabyasachi SenGupta, "Digital simulation and Hardware implementation of a simple scheme for direct torque control of induction motor", Elsevier Science Publication on Energy Conversion and Management, Vol. 49, Issue-4, April 2008, pp 687-697.
v. Subrata Banerjee, Rupam Bhaduri, and Dinkar Prasad
, "Some aspects of switching power amplifier used in electromagnetic levitation system", International Journal of Power Electronics, Inderscience Publishers, Vol.1, No.1, 2008, pp 33–48.
vi. Banerjee Subrata, Sunil Kumar T.K., Pal Jayanta, and Prasad Dinkar
, "Controller design for large-gap control of electromagnetically levitated system by using an optimization technique", IEEE Transactions on control systems technology, 2008, Vol.16, No.3, pp 408-415.
vii. Subrata Banerjee, T.K.Sunil Kumar, Jayanta Pal and Dinkar Prasad
, "A novel method of controller design for simultaneous stabilization and performance improvement of an electromagnetic levitation system", Asian Journal of Control (Wiley Inter Science publication), Oct 2008, Vol.9, Issue-4, pp 402-410.
viii. Sharmili Das, Dinkar Prasad
, Tapas Kumar Bhattacharya, and S.SenGupta, "Magnetizing switching inrush: estimation and a novel circuitry for inrush elimination", International Journal of Emerging Electric Power Systems (The Berkeley Electronic Press), Jan. 2009, Vol.10, Issue-1.