Week in review

Fall 2025
ENSC 220
ELECTRIC CIRCUITS I

September 8, 2025:

  • Models of circuit elements: resistors, diodes, transistors, independent sources, four types of dependent sources
  • Diode (D) as an example of a nonlinear resistive element: ideal switch, exponential (Esaki) diode, Zener diode, tunnel diode
  • Resistive circuits, memoryless elements, and algebraic equations
  • Circuits with inductors and capacitors, elements with memory, and algebraic equations
  • Classification: lumped (R, L, C) and distributed (transmission lines) circuits
  • Classification: passive and active circuit elements (resistors, inductors, capacitors, diodes, independent and dependent sources)
  • Circuits and graph theory: a forgotten link
  • Kirchhoff Current Law (KCL) and Kirchhoff Voltage Law (KVL)
  • Two-terminal elements and one-ports: R, L, C, D
  • Four-terminal elements and two-ports: dependent sources, transistors, transformers
  • Controlled sources
  • Calculation of currents and voltages in simple circuits

    Lab:
  • Forming lab teams (teams of 3)
  • Lab: Orientation Part 1 - PS and DMM. Lab report due on September 14, 2025 (midnight)
    Text:
  • Thomas/Rosa/Toussaint: Chapter 2, Basic Circuit Analysis.
  • Roland E. Thomas, Albert J. Rosa, and Gregory J. Toussaint, The Analysis and Design of Linear Circuits, 8e, John Wiley, 2015.
    Last modified: un 26 Oct 2025 17:34:07 PDT.