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555 Lab - Red LED Flasher

Textbook

In this hands-on electronics experiment, you will build a red LED flasher and learn a useful application of the versatile 555 timer IC.

Programmable Logic Controllers (PLC)

Textbook

Before the advent of solid-state logic circuits, logical control…

Synchronous Motors

Textbook

Single Phase Synchronous Motors Single-phase synchronous motors are…

Special-purpose Diodes

Textbook

Schottky diodes Schottky diodes are constructed of a metal-to-N…

Si Lab - Bipolar Transistor as a Switch

Textbook

In this hands-on semiconductor electronics experiment, use a bipolar junction transistor (BJT) to switch an LED and learn about the current their amplification.

Design Project: LED Stroboscope

Worksheets - Optoelectronics

A technician uses a stroboscope to “freeze” the rotation of a…

555 Lab - Blue LED Flasher With Voltage Doubler

Textbook

In this hands-on electronics experiment, build a blue LED flasher using a 555 timer and learn the basic theory of a voltage doubler using a transistor switch and a capacitor.

Digital Lab - 7-segment LED Display

Textbook

In this hands-on electronics experiment, you will control a 7-segment binary-coded decimal (BCD) display and learn about active-low and active-high logic inputs.

Convert MCD to Lumens

Tools

This calculator is useful for calculating the luminous flux for LEDs where the angle is known.

555 Lab - LED Flasher with Inductive Flyback

Textbook

In this hands-on electronics experiment, build a multiple LED flasher and learn how to use inductive flyback to generate a voltage pulse that is greater than the supply voltage.

Display Tubes

Textbook

In addition to performing tasks of amplification and switching, tubes…

Digital Display Circuits

Worksheets - Optoelectronics

What is the purpose of a seven-segment decoder circuit? What is a…

Optoelectronic Devices

Worksheets - Optoelectronics

In this circuit, the electric motor is supposed to turn on whenever…

555 Lab - Advanced Red LED Flasher

Textbook

In this hands-on electronics experiment, build a red LED flasher with a transistor drive to control the current and learn how to use transistors to provide current gain and how to limit LED current.

Si Lab - Light Sensor (LED Photodetector)

Textbook

In this hands-on semiconductor electronics experiment, use an LED as a light-sensitive photodetector and learn how to use a bipolar transistor in a common-emitter amplifier configuration.

Digital Lab - Digital Combination Lock

Textbook

In this hands-on electronics experiment, build a digital combination lock with LED output indicators and learn about XOR gate functionality and how to implement NOR logic functionality using diodes.

Karnaugh Mapping

Worksheets - Optoelectronics

Identify each of these logic gates by name, and complete their…

Digital Lab - 10-bit Flashing LED Sequencer

Textbook

In this hands-on electronics experiment, build and test an automated circuit that sequentially flashes 10 LED, and learn about counters, frequency dividers, and switch debouncing.

Series LED Resistor Calculator

Tools

This series LED resistance calculator is perfect for when you have a single LED or a number of the same color of LEDs in series and need to know which resistor you should use.

The Antiderivative (Indefinite Integral)

Textbook

  Notice something important here: taking the derivative of f(x)…

Shift Registers: Serial-in, Serial-out

Textbook

Serial-in, serial-out shift registers delay data by one clock time for…

Logarithms for Analog Circuits

Worksheets - Optoelectronics

The concept of a mathematical power is familiar to most students of…

Meter Check of a Transistor (BJT)

Textbook

Bipolar transistors are constructed of a three-layer semiconductor…

Universal Shift Registers: Parallel-in, Parallel-out

Textbook

The purpose of the parallel-in/ parallel-out shift register is to take…

Ammeter Design

Worksheets - Optoelectronics

What would happen to this meter movement, if connected directly to a…

Bridge Circuits

Textbook

No text on electrical metering could be called complete without a…

Capacitance Calculator

Tools

This calculates the capacitance of a capacitor based on its charge, Q, and its voltage, V, according to the formula, C=Q/V.

Solving Simultaneous Equations: The Substitution Method and the Addition Method

Textbook

What are Simultaneous Equations and Systems of Equations? The terms…

Stepper Motors

Worksheets - Optoelectronics

Don’t just sit there! Build something!! Learning to analyze digital…

Counter Modulus

Textbook

Incomplete

Depletion-type IGFETs

Textbook

Insulated gate field-effect transistors are unipolar devices just like…

Time Constant Circuits

Worksheets - Optoelectronics

Generally speaking, how many “time constants” worth of time does…

Meter Check of a Transistor (JFET)

Textbook

Testing a JFET with a multimeter might seem to be a relatively easy…

Transistor Ratings and Packages (IGFET)

Textbook

Microstrip Wavelength Calculator

Tools

A tool designed to calculate the guided wavelength inside a microstrip.

Battery Ratings

Textbook

Because batteries create current flow in a circuit by exchanging…

R, L and C Summary

Textbook

With the notable exception of calculations for power (P), all AC…

Si Lab - Differential Amplifier

Textbook

In this hands-on semiconductor electronics experiment, build a BJT differential amplifier and learn about a fundamental building block that is the basis of most operational amplifiers.

Complex Circuits

Textbook

What do we do if we come across a circuit more complex than the simple…

Switched Capacitor Circuitry

Worksheets - Optoelectronics

Write an equation describing the precise mathematical relationship…

Introduction to Mixed-Frequency AC Signals

Textbook

In our study of AC circuits thus far, we’ve explored circuits…

Design Project: LED Stroboscope

Worksheets - Optoelectronics

A technician uses a stroboscope to “freeze” the rotation of a…

SPICE Quirks

Textbook

“Garbage in, garbage out.” —Anonymous   SPICE…

Important Constants

Textbook

Euler’s Number Euler’s constant is an important value for…

Si Lab - Simple Op Amp

Textbook

In this hands-on semiconductor electronics experiment, build a custom operational amplifier (op amp) and learn about the application of current mirrors and the use of negative feedback in op amp circuits.

Current Divider Circuits

Worksheets - Optoelectronics

Don’t just sit there! Build something!! Learning to mathematically…

Finite-length Transmission Lines

Textbook

A transmission line of infinite length is an interesting abstraction,…

Microcontroller Principles

Worksheets - Optoelectronics

Read the following quotation, and then research the term…

Differential Transistor Amplifiers

Worksheets - Optoelectronics

Don’t just sit there! Build something!! Learning to mathematically…

Square Wave Signals

Textbook

It has been found that any repeating, non-sinusoidal waveform can be…

T-Match Impedance Matching Circuits

Tools

A tool designed to compute the values to be used in a T-match Impedance Circuit

Si Lab - Full-wave Bridge Rectifier

Textbook

In this hands-on semiconductor electronics experiment, build a full-wave bridge rectifier using silicon diodes and learn some of this circuit's advantages and disadvantages.

Design Project: Sensitive Audio Detector

Worksheets - Optoelectronics

The choice of step-down transformers to use in a project such as this…

Analog Lab - Precision Voltage Follower Using an Op Amp

Textbook

In this hands-on electronics experiment, you will build an op amp voltage follower and learn about negative feedback in operational amplifier circuits.

Resonance

Worksheets - Optoelectronics

The Q factor of a series inductive circuit is given by the following…

DC Lab - Rheostat Range Limiting

Textbook

In this hands-on electronics experiment, you will use series and parallel resistor networks to precisely adjust the range and zero point of a rheostat.

Building Resistor Circuits Using Breadboards, Perfboards, and Terminal Strips

Textbook

Over the course of learning about electricity, you will want to…

Simple Parallel (Tank Circuit) Resonance

Textbook

Resonance in a Tank Circuit A condition of resonance will be…

AC Lab - Noise Cancellation

Textbook

In this hands-on AC electronics experiment, you will use an AC voltage source connected to speakers to learn about sound waves and the foundational principle used in noise cancelling headphones.