SEQUEL

SEQUEL is a general-purpose circuit simulation package developed
at IIT Bombay. It provides a GUI for schematic entry and plotting.
Several simulation examples in electronics and power electronics,
particularly suitable for teaching engineering courses, are included
in the package.

Features

• DC, transient, small-signal analysis
• efficient "steady-state waveform" computation
• digital (event-driven) simulation
• mixed-signal simulation
• GUI for schematic capture and plotting
• free!

Using SEQUEL for teaching

A large number of ready-made simulation examples are made available
with the SEQUEL distribution. They can be used in courses on electronics
and power electronics in a variety of ways:

• class-room demonstration of basic concepts by running exisiting
  examples in class
• assigning simulation exercises in which students tinker with
  parameter values and observe its effect on simulation results
  ("active learning")
• assigning design problems (for which simulation can be used
  as a verification tool)
• assigning class projects in which students design and simulate
  a complex circuit or system

• SEQUEL distribution for Windows
• Slides on circuit simulation
  Techniques for circuit simulation
  Circuit simulation: transient analysis

Video tutorials: (download and view with VLC media player)

• SEQUEL GUI basics
• Tutorial on RC circuit (transient simulation)
• Tutorial on RLC circuit (AC analysis)
• Project examples
• Global parameters
• How to plot graphs
• Solve block statements (1)
• Solve block statements (2)
• Solve block statements (3)
• Solve block statements (4)
• Solve block statements (5)
• Solve block statements (6)
• Solve block statements (7)
• Solve block statements (8)
• Solve block statements (9)

SEQUEL Users' Manual

• Part 1
• Part 2

Instructions for running SEQUEL (Windows)

• Extract files to a directory of your choice (say, xyz) preferably
  on D: or E: drive, and not on the Desktop or C:.
• Change to directory xyz.
• Run the executable file, SequelGUI2_Release\SequelGUI.exe.
• Follow the video tutorial on RC circuit to get started.
• Caution: Do not create a short-cut for running Sequel. It may
  create file access issues.

Course material (Electronics): slides, notes, animations, lab sheets

Video lectrures for NPTEL on-line course on Basic Electronics

SequelApp for classroom teaching

Jupyter Notebooks for Power Electronics Education

Related Publications

1. "Simulation of Power Electronic Circuits,"
   by M.B. Patil, V. Ramanarayanan, V.T. Ranganathan, Narosa, 2009.
2. Errata for the above book.
3. M. B. Patil, "A public-domain program for mixed-signal simulation,"
   IEEE Trans. Education, pp. 187-193, May 2002.
4. M. B. Patil, S. P. Das, A. Joshi, and M. C. Chandorkar, "A new
   public-domain simulator for power electronics circuits,"
   IEEE Trans. Education, vol. 45, pp. 79-85, Feb. 2002.
5. D. Vinay Kumar, R. A. Thakker, M. B. Patil, and V. R. Rao,
   "Simulation study of non quasi static behaviour of MOS transistors,"
   Proc. 5th Intl. Conf. on Modeling and Simulation of Microsystems,
   San Juan, Peurto Rico, April 22, 2002.
6. M. B. Patil, M. C. Chandorkar, B. G. Fernandes, and K. Chatterjee,
   "Computation of steady-state response in power electronic circuits,"
   IETE J. Research, vol. 48, no. 6, pp. 471-477, Nov. 2002.
7. Dennis Sasikumar, R. Manchanda, and M. B. Patil,
   "The role of dendritic spines in EPSP amplification: a
   computational pilot study using a novel simulation platform,"
   Int. Symp. Neuroscience, Manesar, India, Dec 15-17, 2003.
   
8. D. Vinay Kumar, K. Narasimhulu, M. Shojaei-Baghini,
   D. K. Sharma, M. B. Patil, and V. R. Rao, "Evaluation of
   the impact of layout on device and analog circuit performance
   with LAC MOSFETs," IEEE Trans. Electron Devices, vol. 52,
   pp. 1603-1609, 2005.
9. S. N. Agarwal, A. Jha, D. Vinay Kumar, J. Vasi, M. B. Patil, and
   S. C. Rustagi, "Look-up table approach for RF circuit simulation
   using a novel measurement technique," IEEE Trans. Electron Devices,
   vol. 52, pp. 973-979, 2005.
10. B. P. Harish, N. Bhat, and M. B. Patil, "Analytical modeling of CMOS
    circuit delay distribution due to concurrent variations in multiple
    processes," Solid-State Electron., vol. 50, pp. 1252-1260, 2006.
11. B. P. Harish, N. Bhat, and M. B. Patil, "On a generalized framework
    for modeling the effects of process variations on circuit delay
    performance using response surface methodology," IEEE Trans. CAD,
    vol. 26, pp. 606-614, 2007.
12. R. R. Sawant and M. C. Chandorkar, "Methods for multi-functional
    converter control in three-phase four-wire systems," IET Power Electronics,
    vol. 2, issue 1, pp. 52-66, Jan. 2009.
13. R. R. Sawant and M. C. Chandorkar, "A Multifunctional Four-Leg
    Grid-Connected Compensator," IEEE Trans. Industry Applications,
    vol. 45, pp. 245-259, 2009.
14. R. A. Thakker, C. Sathe, A. B. Sachid, M. S. Baghini, V. R. Rao,
    and M. B. Patil, "Automated Design and Optimization of Circuits in
    Emerging Technologies," Proc. 14th Asia and South Pacific Design
    Automation Conf., Yokohoma, January 19-22, 2009.
15. R. A. Thakker, C. Sathe, A. B. Sachid, M. S. Baghini, V. R. Rao,
    and M. B. Patil, "A Novel Table-based approach for Design of FinFET
    Circuits ," IEEE Trans. CAD, pp. 1061-1070, July 2009.