Categories

What is Alternating Current (AC)?

Textbook

Most students of electricity begin their study with what is known as…

Brushless DC Motor

Textbook

Brushless DC motors were developed from conventional brushed DC motors…

Stepper Motors

Textbook

Stepper Motor vs Servo Motor A stepper motor is a…

Pulse Width Modulation

Textbook

Pulse Width Modulation (PWM) uses digital signals to control power…

Step-up, Step-down, and Isolation Transformers

Worksheets - DC Motors

Calculate the voltage output by the secondary winding of a transformer…

Motor Control Circuits

Textbook

The interlock contacts installed in the previous section’s motor…

AC Lab - Induction Motor

Textbook

In this hands-on AC electronics experiment, build a simple AC permanent capacitor split-phase induction motor and learn the principles of AC induction motor function.

Tesla Polyphase Induction Motors

Textbook

Most AC motors are induction motors. Induction motors are favored due…

Introduction to AC Motors

Textbook

After the introduction of the DC electrical distribution system by…

Other Specialized Motors

Textbook

Shaded Pole Induction Motor An easy way to provide starting torque to…

AC Motor Theory

Worksheets - DC Motors

Electromechanical watt-hour meters use an aluminum disk that is spun…

AC Commutator Motors

Textbook

Charles Proteus Steinmetz’s first job after arriving in America…

Design Project: Stepper Motor Driver

Worksheets - DC Motors

At first it may seem pointless to have the four buffer gates following…

Oscilloscope Trigger Controls

Worksheets - DC Motors

A very useful tool for observing rotating objects is a strobe light.…

Linear Computational Circuitry

Worksheets - DC Motors

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

AC Motor Control Circuits

Worksheets - DC Motors

Perhaps the most challenging aspect of interpreting ladder diagrams,…

Electric Shock

Worksheets - DC Motors

It is sometimes said regarding electrical safety that, Ït’s not the…

Brushless DC Motor

Textbook

Brushless DC motors were developed from conventional brushed DC motors…

AC Lab - Automotive Alternator as AC Generator

Textbook

In this hands-on AC electronics experiment, you will use an automotive alternator to generate three-phase AC voltage and learn how alternators can function as both generators and motors.

Selsyn (Synchro) Motors

Textbook

Normally, the rotor windings of a wound rotor induction motor are…

Stepper Motor Calculator

Tools

A tool designed to calculate the maximum speed, minimum time per step and maximum power of a stepper motor

Lenz’s Law and Faraday’s Law Calculator

Tools

This calculator uses Faraday's and Lenz's laws to calculate the magnitude and polarity of the induced electromotive force (EMF) caused by a change in magnetic flux through a closed-loop coil.

Magnetism

Worksheets - DC Motors

A permanent magnet is a device that retains a magnetic field without…

Si Lab - Zener Diode Voltage Regulator

Textbook

In this hands-on semiconductor electronics experiment, build a simple DC voltage regulator circuit and learn how to use reverse-biased Zener diodes as voltage clamps.

Coax Impedance Calculator

Tools

A helpful tool for calculating the impedance of a coaxial cable.

Converting Truth Tables into Boolean Expressions

Textbook

In designing digital circuits, the designer often begins with a truth…

Single-phase Power Systems

Textbook

Single phase power system schematic diagram shows little about the…

Si Lab - Intro to Discrete Semiconductor Circuits

Textbook

In these hands-on semiconductor electronics experiments, learn to build and test circuits using discrete silicon (Si) devices, including diodes and transistors. Also, learn important circuit designs, including rectifiers, current mirrors, amplifiers, and oscillators.

AC Metrology

Worksheets - DC Motors

In power distribution systems, it is very important to be able to…

Thevenin’s, Norton’s, and Maximum Power Transfer Theorems

Worksheets - DC Motors

Suppose a 12 volt lead-acid battery has an internal resistance of 20…

DC Generator Theory

Worksheets - DC Motors

Generators used in battery-charging systems must be regulated so as to…

Si Lab - Astable Multivibrator Audio Oscillator

Textbook

In this hands-on semiconductor electronics experiment, build an astable multivibrator (oscillator) circuit that provides an output in the audio frequency range and learn the effect of component values and supply voltage on oscillation frequency.

Principles of Radio

Textbook

One of the more fascinating applications of electricity is in the…

AC Lab - Musical Keyboard as a Signal Generator

Textbook

In this hands-on AC electronics experiment, an electronic musical keyboard will be used as a variable-frequency AC signal generator to learn the difference between AC amplitude and frequency.

Multimeters

Textbook

Seeing as how a common meter movement can be made to function as a…

Si Lab - JFET Switching Circuit and Static Electricity Sensor

Textbook

In this hands-on semiconductor electronics experiment, use a junction field-effect transistor (JFET) to build a sensitive switching circuit and learn about JFET current gain.

Capacitor Charge and Time Constant Calculator

Tools

This calculator computes for the capacitor charge time and energy, given the supply voltage and the added series resistance.

Basic Circuit Troubleshooting

Worksheets - DC Motors

Determine if the light bulb will de-energize for each of the following…

Properties of Exponents

Textbook

Product of Powers Property am an = am+n   Power of a Product…

Introduction to Karnaugh Mapping

Textbook

Why learn about Karnaugh maps? The Karnaugh map, like Boolean…

Series Circuits and the Application of Ohm’s Law

Textbook

In this introduction to series resistance circuits, we will explain…

Impedance

Worksheets - DC Motors

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