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…

Design Project: DC Motor

Worksheets - DC Motors

The armature windings of your DC motor will have very low resistance.…

Wound Rotor Induction Motors

Textbook

A wound rotor induction motor has a stator like a squirrel cage…

AC Instrumentation Transducers

Textbook

Just as devices have been made to measure certain physical quantities…

DC Motor Control Circuits

Worksheets - DC Motors

How is it possible to electrically measure the torque output by a…

Electric Shock

Worksheets - DC Motors

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

Stepper Motors

Textbook

Stepper Motor vs Servo Motor A stepper motor is a…

Boolean Algebra

Worksheets - DC Motors

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

DC Generator Theory

Worksheets - DC Motors

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

Induction Motor, Large

Textbook

PARTS AND MATERIALS AC power source: 120VAC Capacitor, 3.3 µF…

Induction Motor

Textbook

PARTS AND MATERIALS AC power source: 120VAC Capacitor, 3.3 µF…

Torque Conversion Calculator

Tools

A tool designed to convert between units of torque

Polyphase Motor Design

Textbook

AC Motors Perhaps the most important benefit of polyphase AC power…

Basic Troubleshooting Strategies

Worksheets - DC Motors

A chandelier has five light bulbs in it, and one of them is not…

Intermediate Electromagnetism and Electromagnetic Induction

Worksheets - DC Motors

As an electric current is passed through a coil of wire, it creates a…

AC Commutator Motors

Textbook

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

Introduction to AC Motors

Textbook

After the introduction of the DC electrical distribution system by…

Motor Control Circuits

Textbook

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

Contactors

Textbook

All About Contactors When a relay is used to switch a large amount of…

AC Motor Theory

Worksheets - DC Motors

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

Vacuum Tube Audio Amplifier

Textbook

PARTS AND MATERIALS One 12AX7 dual triode vacuum tube Two power…

Voltage and Current in a Practical Circuit

Textbook

Because it takes energy to force charge to flow against the opposition…

AC Instrumentation Transducers

Textbook

Just as devices have been made to measure certain physical quantities…

LED Sequencer

Textbook

PARTS AND MATERIALS 4017 decade counter/divider (Radio Shack catalog…

TTL Logic Gates

Worksheets - DC Motors

Counting practice: count from zero to thirty-one in binary, octal, and…

Systems of Numeration

Textbook

Roman Numerals The Romans devised a system that was a substantial…

Parallel DC Circuits Practice Worksheet With Answers

Worksheets - DC Motors

In this circuit, three resistors receive the same amount of voltage…

Simple Series Resonance

Textbook

A similar effect happens in series inductive/capacitive circuits. When…

Simple Circuits

Worksheets - DC Motors

Shown here is the schematic symbol for a resistor: What is the purpose…

Power Density Calculator

Tools

A tool designed to calculate the power density of an antenna

Low-pass Filters

Textbook

By definition, a low-pass filter is a circuit offering easy passage to…

JFET Current Regulator

Textbook

PARTS AND MATERIALS One N-channel junction field-effect transistor,…

Simple AC Circuit Calculations

Textbook

Over the course of the next few chapters, you will learn that AC…

Conventional Transistor Overview and Special Transistors

Worksheets - DC Motors

A microcontroller is a specialized type of digital computer used to…

IGFET Amplifiers

Worksheets - DC Motors

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

AC Resistor Circuits (Inductive)

Textbook

Instantaneous Values in AC Circuits Pure resistive AC circuit:…

Synchronous Counters

Textbook

What is a Synchronous Counter? A synchronous counter, in contrast to…

Transistors, junction field-effect (JFET)

Textbook

Note that the direction of the arrow at the gate indicates the…

Hand Calculator Use

Textbook

To enter numbers in scientific notation into a hand calculator, there…

Factors Affecting Capacitance

Textbook

There are three basic factors of capacitor construction determining…

Sum and Product Notation

Textbook

For reference, this section introduces the terminology used in some…