Module 3: Electro-Technology


Nominal duration: 5 weeks (40 hours total time commitment)


This time commitment includes the preparation reading, attendance at each webinar (1 hour plus 15-30 minutes for discussion), and the time necessary to complete the assignments and further study.





The four basic disciplines that underpin Mechatronics are electronic systems, mechanical systems, computers, and control systems. Electronic systems can further be subdivided into analog and digital electronic systems. However, the understanding of both analog and digital systems depends on a fundamental knowledge of electricity and the way it behaves in passive circuits. This unit deals with the behavior of passive (i.e. non-electronic) circuits comprising resistors (R), capacitors (C) or inductors (L), or a combination thereof, in the presence of either Direct Current (DC) or Alternating Current (AC).






To evaluate the achievement of the learning outcomes; written assignments, group projects and practical exercises are set.




1.   Perform calculations based on Ohm’s Law


2.   Perform calculations related to capacitors and inductors


3.   Perform calculations related to AC circuits


4.   Perform calculations related to power


5.   Design simple passive filters



Learning Outcome 1


Assessment criteria


Perform calculations based on Ohm’s Law


1.1.     Calculate the overall resistance of resistors in series and/or parallel configurations

1.2.     Apply Kirchhoff’s Laws to given circuits

1.3.     Calculate voltages and currents for voltage dividers and bridge circuits 



Learning Outcome 2


Assessment criteria













Learning Outcome 3


Assessment criteria















Learning Outcome 4


Assessment criteria















Learning Outcome 5


Assessment criteria









Perform calculations related to capacitors and inductors


2.1.     Calculate the overall capacitance of capacitors in series and/or parallel configurations


2.2.     Calculate the overall inductance of inductors in series and/or parallel configurations


2.3.     Explain the phase relationship between voltage and current in inductors as well as capacitors


2.4.     Simulate the step-responses of RC and RL circuits with appropriate simulation software



Perform calculations related to AC circuits


3.1.     Represent voltage and current in:
(a) Complex notation
(b) Vector notation


3.2.     Calculate RMS (Root Mean Square) and peak values for AC voltages or currents


3.3.     Examine and discuss the differences between single and three-phase supplies in terms of peak/RMS voltages and phase angles


3.4.     Calculate impedance for reactive (capacitive/inductive) circuits at given frequencies



Perform calculations related to power


4.1.     Calculate average power consumption for a resistive circuit


4.2.     Calculate reactive power consumption for a purely capacitive or inductive component


4.3.     Examine and discuss the concept of Power Factor, and the implications thereof


4.4.     Calculate Power Factor for a circuit with a reactive component





Design simple passive filters


5.1.     Explain the basics of the various analog filter types


5.2.     Examine and discuss the issue of noise in circuits, and the mitigation thereof


5.3.     Simulate simple passive filters (low-pass, high-pass) with SPICE-based simulation software


Delivery Mode

A combination of asynchronous and synchronous e-learning delivery comprising a judicious mix of interactive online web conferencing, simulation (virtual labs) software, remote online labs, online videos, Power Points, notes, reading and study materials (in pdf, html and word format) accessed through the Moodle Learning Management System (LMS).




Software/Hardware Used


  • AutoCAD

  • SIMetrix 
  • Ltspice IV


  •  N/A