Electrical circuits

Sample physical appearance of electrical circuits:

Electrical circuit diagrams

Connections of electrical circuits are represented by circuit diagrams.

Example:

What do electrical circuits do ?

High level description of electrical circuits:

  • Has a number of (electrial) input signals
  • Has a number of (electrial) output signals
  • The output signals can change according to the function of the electrical circuit

Types of electrical circuits
 

Electrical circuits are broadly categorized into 2 different types:

  1. Analog electrical circuits

      • Input and output signals are continuous    

  2. Digital electrical circuits

      • Input and output signals are discrete    

Example of an analog circuit
 

An amplifier circuit:

  • The output (electrical) signal is a stronger (magnified) copy of the input signal

Example of a digital circuit

An NOT-circuit

  • This circuit changes a "low" signal (= false) into a "high" signal (= true) and vice versa

Digital circuit emulators

  • Software that simulates the function of digital circuits

  • Example: https://circuitverse.org/simulator

  • The CS355 course will use EDiSim:

    which is a text-based digital circuit simulator that allow you to build very large circuits !!

  • Demo:

      • cd /home/cs355001/demo/circuits/    
      • /home/cs355001/bin/cs355sim not