This page contains labs that I have written while teaching EE320L, Engineering Electronics I Laboratory at the University of Nevada Las Vegas (UNLV). The labs are written at a beginner level and should be easy to understand for anyone who took a basic circuits class (whether successful or not). While the material can be verbose, I have taken a tutorial approach to my labs and assume that the student has very little experience with LTSpice and electronics in general. Any feedback, comments or corrections are appreciated.
EE 320L Lab #3 Operational Amplifier Application Circuits
This lab explains the theory, simulation and construction of astable multivibrator and integrator circuits. These are combined to create a rudimentary function generator with square wave and triangle wave out. Notable features of this lab include simulating white noise in LTSpice for oscillator circuits.
EE 320L Lab #5 Clipping and Clamping Circuits
This lab explains the theory, simulation and construction of both passive and active clipping and clamping circuits. There is a detailed explanation of how a clamping circuit works using a simulation that shows voltages and currents in all devices over time."Soft" and "hard" clipping is also explained.
EE320L Lab #10 Frequency Response of BJT Amplifiers
This lab explains how to estimate the frequency response of a BJT amplifier using theory, simulations and measured results. Calculations and common rules of thumb are used in order to estimate the lower and upper corner frequencies. The relationship between frequency and time is explained in an intuitive easy to grasp manner. Breadboard layout is critical for this lab. "Base stopper" resistors may need to be used. Base stopper resistors are so named because they stop oscillations that occur through positive feedback to the base. In the past, they were called grid stopper resistors since vacuum tubes had grids. If your circuit oscillates in this lab, simply add a 100 ohm-1k ohm resistor in series with the bases of the transistors after all the biasing circuitry. I will amend this lab at some point and add information about preventing oscillations.