Simulation Exercises for SEQUEL (A Solver for circuit EQuations with User-defined ELements)

Simulation Exercises in  SEQUEL

 SEQUEL (A Solver for circuit EQuations with User-defined ELements) is a general-purpose simulation package developed at IIT Bombay. It has been extensively used for R and D activities at IIT Bombay. Recently, several examples in electronics and power electronics have been added to the package, making it attractive for teaching purposes. 

Features

• DC, transient, small-signal
• Efficient "steady-state waveform" computation
• digital (event-driven) simulation
• mixed-signal simulation
• perfectly "general" elements (mechanical, thermal, etc.)
• GUI for schematic capture, plotting, etc.
• Allows user-defined elements (linux version only)
• Free to Download !!

Each of the following documents (pdf files) includes a short introduction to a specfic topic, followed by simulation exercises. A circuit file is provided as a starting point. The name of the circuit file is given at the top of the document for that topic.

1. Basic network theory: source transformation
2. Mesh analysis example
3. Nodal analysis example
4. Thevenin theorem example
5. Superposition example
6. RC circuits: periodic input
7. RL circuits: transient
8. Resonance: series RLC circuit
9. Series RLC circuit: time-domain response
10. Diode I-V curve
11. Diode shunt clipper
12. Diode series clipper
13. Diode clipping circuit example
14. Diode clamping circuit example
15. Voltage doubler
16. Full-wave rectifier: centre-tapped
17. Full-wave rectifier: centre-tapped with Zener regulation
18. Zener regulator
19. BJT: Ic versus Vce characteristics
20. Common-emitter amplifier: biasing and frequency response
21. Common-emitter amplifier: input resistance
22. Common-emitter amplifier: output resistance
23. Differential pair (BJT): common-mode and differential-mode gain
24. BJT inverter: transfer characteristic
25. Simple BJT mirror
26. Cascode BJT mirror
27. Op Amp inverting amplifier: basic operation
28. Op Amp inverting amplifier: slew rate limitation
29. Op Amp inverting amplifier: gain-bandwidth product
30. Op Amp filters: first-order low-pass filter
31. Bass equalizer
32. Sinusoidal oscillators: phase-shift oscillator
33. Op Amp: monostable circuit
34. Op Amp: triangular wave generator
35. Voltage regulation with Op Amp
36. Non-inverting Schmitt trigger
37. Inverting Schmitt trigger
38. Synchronous decade counter
39. Asynchronous counter example
40. Synchronous counter example
41. 555 timer: monostable operation
42. 555 timer: astable operation
43. Boost converter
44. Active Boost converter
45. Boost converter: zero voltage switching
46. Diode bridge: single-phase
47. Diode bridge: three-phase
48. Thyristor bridge: single-phase
49. Thyristor bridge: three-phase
50. Buck-Boost converter
51. Buck converter
52. Cuk converter
53. Resonant series converter