Categories

Tesla Polyphase Induction Motors

Textbook

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

Stepper Motor Calculator

Tools

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

Reluctance Motor

Textbook

The variable reluctance motor is based on the principle that an…

Sensing AC Magnetic Fields

Textbook

PARTS AND MATERIALS Audio detector with headphones Electromagnet coil…

Winding Configurations

Textbook

Transformers with Multiple Secondaries Transformers are very versatile…

Encoders and Decoders

Worksheets - Electromechanical

What does it mean, in general terms, to encode something? Conversely,…

Hysteresis

Textbook

Thyristors are a class of semiconductor components exhibiting…

Time-delay Relays

Textbook

What are Time-Delay Relays? Some relays are constructed with a kind of…

AC Motor Theory

Worksheets - Electromechanical

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

Stepper Motors

Textbook

Stepper Motor vs Servo Motor A stepper motor is a…

Build a Transformer

Textbook

PARTS AND MATERIALS Steel flat bar, 4 pieces Miscellaneous bolts,…

Switches, Hand Actuated

Textbook

A switch is an electrical component that can “make” or…

Time-Delay Electromechanical Relays

Worksheets - Electromechanical

What does the normal status of an electrical switch refer to?…

Performance-Based Assessments for DC Circuit Competencies

Worksheets - Electromechanical

(Template)

The TRIAC

Textbook

SCRs are unidirectional (one-way) current devices, making them useful…

Introduction to AC Motors

Textbook

After the introduction of the DC electrical distribution system by…

Transformer—Power Supply

Textbook

PARTS AND MATERIALS Power transformer, 120VAC step-down to 12VAC,…

Step-up and Step-down Transformers

Textbook

So far, we’ve observed simulations of transformers where the…

Simple Combination Lock

Textbook

PARTS AND MATERIALS 4001 quad NOR gate (Radio Shack catalog #…

Three-phase Transformer Circuits

Textbook

Since three-phase is used so often for power distribution systems, it…

Induction Motor, Large

Textbook

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

Digital Signals and Gates

Textbook

While the binary numeration system is an interesting mathematical…

The Triode

Textbook

De Forest’s Audion tube came to be known as the triode tube…

Linear Computational Circuitry

Worksheets - Electromechanical

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

The Quadratic Formula

Textbook

Solving for x in a given polynomial equation “ax2 + bx + c…

High-Reliability Circuits

Worksheets - Electromechanical

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

Antiderivatives of Power Functions of e

Textbook

  Note: this is a very unique and useful property of e. As in…

Algebraic Equation Manipulation for Electric Circuits

Worksheets - Electromechanical

The electrical resistance of a conductor at any temperature may be…

Design Project: Pulse-Width Modulation (PWM) Signal Generator

Worksheets - Electromechanical

What shape of voltage waveform would you expect to measure (using an…

Contributors (9)

Textbook

Contributors to this chapter are listed in chronological order of…

Power Quality Measurement

Textbook

It used to be with large AC power systems that “power…

Full-wave Center-tap Rectifier

Textbook

PARTS AND MATERIALS Low-voltage AC power supply (6-volt output) Two…

Resistivity Calculator

Tools

This calculator calculates the resistivity of a component based on its resistance value, length, and cross-sectional area.

Properties of Exponents

Textbook

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

Why digital?

Textbook

Although many textbooks provide good introductions to digital memory…

Control Circuits

Textbook

Example Circuits and Netlists

Textbook

The following circuits are pre-tested netlists for SPICE 2g6, complete…

The Exclusive-OR Function: The XOR Gate

Textbook

What Is an XOR Gate? One element conspicuously missing from the set of…

Metric Notation

Textbook

The metric system, besides being a collection of measurement units for…

Wound Rotor Induction Motors

Textbook

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

Memory Devices

Worksheets - Electromechanical

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

Series and Parallel Inductors

Textbook

When inductors are connected in series, the total inductance is the…

Power Sources

Textbook

There are many different types of power sources, and here some of the…

Δ-Y and Y-Δ Conversions

Textbook

In many circuit applications, we encounter components connected…

Fundamentals of SPICE programming

Textbook

Programming a circuit simulation with SPICE is much like programming…

Introduction to Discrete Semiconductor Circuits

Textbook

A semiconductor device is one made of silicon or any number of other…

Switches

Worksheets - Electromechanical

What is the purpose of the switch shown in this schematic diagram?

DC Transducers

Worksheets - Electromechanical

Research and describe what the Hall effect is, and list some practical…

Capacitors

Worksheets - Electromechanical

Identify some of the different types of capacitors, and their…

Voltage Signal Systems

Textbook

The use of variable voltage for instrumentation signals seems a rather…

Wire Stripline Impedance Calculator

Tools

A calculator for computing the impedance of a wire stripline.

Light-Pulse Switch

Worksheets - Electromechanical

It is fairly important to use large value resistors (10 MΩ works…

Potentiometers

Worksheets - Electromechanical

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

Transistor Ratings and Packages (JFET)

Textbook

Wire Types and Sizes

Worksheets - Electromechanical

Most electrical wire is covered in a rubber or plastic coating called…

Microstrip Crosstalk Calculator

Tools

This tool is designed to calculate cross-talk coefficient and coupled voltage for a microstrip.

Basic Logic Gate Troubleshooting

Worksheets - Electromechanical

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

ElectroStatic Discharge

Textbook

At the start of this book, we discussed static electricity and how it…

Temperature Coefficient of Resistance

Worksheets - Electromechanical

It is a common phenomenon for the electrical resistance of a substance…

Class C BJT Amplifiers

Worksheets - Electromechanical

A common class of operation used in radio-frequency (RF) amplifier…