ENEL220-20W (C) Whole Year 2020

Circuits and Signals

15 points

Start Date: Monday, 17 February 2020
End Date: Sunday, 8 November 2020
Withdrawal Dates
Last Day to withdraw from this course:
  • Without financial penalty (full fee refund): Friday, 13 March 2020
  • Without academic penalty (including no fee refund): Friday, 21 August 2020


Circuit laws and theorems. Transients and steady state behaviours of resistive, capacitive and inductive circuits. Laplace transforms. Fourier transforms and series. Linear system behaviour.

Topics covered include:
• Fundamentals of charge, voltage, current and power;
• ideal sources;
• current-voltage relationships for basic components;
• modelling of real components;
• Kirchhoff’s voltage and current laws;
• series and parallel combinations;
• nodal and mesh analysis;
• properties of linear networks;
• Thévenin’s theorem, Norton’s theorem, maximum power transfer theorem;
• superposition;
• capacitor and inductor modeling;
• source-free response of RLC circuits;
• 1st and 2nd order RLC circuits, initial conditions, forced response, complete response;
• transients and the Laplace transform;
• frequency response;
• high pass, low pass, bandpass, and bandstop filters;
• complex frequency, pole-zero and Bode plots, resonance;
• trigonometric form of Fourier series, complex form of Fourier series, circuit analysis using Fourier series expansion, Fourier transform techniques.

Learning Outcomes

  • At the end of this course, the student will be able to:

  • Use the basic DC circuit techniques to find current values, voltage values and power absorption values in a DC circuit containing ideal independent sources, resistors and dependent sources;
  • use practical sources and series/parallel rules to create equivalent circuits as a problem solving tool;
  • find basic Norton and Thévenin equivalent circuits and understand their utility;
  • understand the modeling of inductors and capacitors and their current-voltage relationships;
  • solve basic RL, RC and RLC circuits using established methods and understand how these solutions follow from the basic modeling;
  • be able to perform all the basic techniques (nodal and mesh analysis, superposition, Norton equivalents etc.) in the s-domain using Laplace methods;
  • have some understanding of the utility and interpretation of the s-domain,
  • understand the complex plane plotting techniques and their uses for filter design and understanding resonance;
  • describe/ define the characteristics of low, high, bandpass and bandstop filters.
  • design passive filters with specific corner or cutoff frequencies.
  • be able to apply Fourier methods for circuit and signal analysis.


Subject to the approval of the Dean of Engineering and Forestry



Timetable 2020

Students must attend one activity from each section.

Lecture A
Activity Day Time Location Weeks
01 Wednesday 10:00 - 11:00 C3 Lecture Theatre (19/2-25/3)
Live Stream Available (22/4-27/5)
Rehua 005 (15/7-19/8, 9/9-14/10)
17 Feb - 29 Mar
20 Apr - 31 May
13 Jul - 23 Aug
7 Sep - 18 Oct
Lecture B
Activity Day Time Location Weeks
01 Monday 09:00 - 10:00 E5 Lecture Theatre (17/2-16/3, 13/7-17/8, 7/9-12/10)
Live Stream Available (23/3, 20/4, 4/5-25/5)
17 Feb - 29 Mar
20 Apr - 26 Apr
4 May - 31 May
13 Jul - 23 Aug
7 Sep - 18 Oct

Examination and Formal Tests

Test A
Activity Day Time Location Weeks
01 Tuesday 19:00 - 20:30 A2 Lecture Theatre 20 Jul - 26 Jul
02 Tuesday 19:00 - 21:00 E12 20 Jul - 26 Jul

Course Coordinator

Karla Smith


Assessment Due Date Percentage 
Test 40%
Homework 9%
Quizzes 1%
End of Year Exam 50%

Indicative Fees

Domestic fee $975.00

International fee $5,500.00

* Fees include New Zealand GST and do not include any programme level discount or additional course related expenses.

For further information see Electrical and Computer Engineering.

All ENEL220 Occurrences

  • ENEL220-20W (C) Whole Year 2020