Latest Electromechanical Education

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Basic Electromagnetic Relays

Worksheets - Electromechanical

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

Tesla Polyphase Induction Motors

Textbook

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

AC Instrumentation Transducers

Textbook

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

The S-R Latch

Textbook

A bistable multivibrator has two stable states, as indicated by the…

Voltmeter Impact on Measured Circuit

Textbook

Every meter impacts the circuit it is measuring to some extent, just…

What is Alternating Current (AC)?

Textbook

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

Light-Pulse Switch

Worksheets - Electromechanical

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

The Junction Field-effect Transistor (JFET) as a Switch

Textbook

Like its bipolar cousin, the field-effect transistor may be used as an…

Intro Lab - Circuit With a Switch

Textbook

In this hands-on electronics experiment, you will control a light with a switch and learn the basics of connecting toggle (on/off) switches into circuits.

Digital Logic Functions

Textbook

We can construct a simple logic functions for our hypothetical lamp…

Protective Relays

Textbook

A special type of relay is one that monitors the current, voltage,…

Heat Sink Calculator

Tools

This calculator helps determine the maximum temperature a device can withstand

DC Generator Theory

Worksheets - Electromechanical

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

Three-phase Transformer Circuits

Textbook

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

AC Motor Theory

Worksheets - Electromechanical

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

Wound Rotor Induction Motors

Textbook

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

Switches, Hand Actuated

Textbook

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

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.

Programmable Logic Controllers (PLC)

Textbook

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

Bipolar Junction Transistors as Switches

Worksheets - Electromechanical

Solid-state switching circuits usually keep their constituent…

Larger 5 & 6-variable Karnaugh Maps

Textbook

Larger Karnaugh maps reduce larger logic designs. How large is large…

The Unijunction Transistor (UJT)

Textbook

Unijunction transistor: Although a unijunction transistor is not a…

Node Voltage Method

Textbook

The node voltage method of DC network analysis solves for unknown…

Contributors (8)

Textbook

Contributors to this chapter are listed in chronological order of…

Quantum Devices

Textbook

Most integrated circuits are digital, based on MOS (CMOS) transistors.…

Magnetic Units of Measurement

Textbook

If the burden of two systems of measurement for common quantities…

Voltage-to-Current Signal Conversion

Textbook

In instrumentation circuitry, DC signals are often used as analog…

Stepper Motors

Textbook

Stepper Motor vs Servo Motor A stepper motor is a…

Introduction to Boolean Algebra

Textbook

Mathematical rules are based on the defining limits we place on the…

Link Budget Calculator

Tools

A Link Budget puts into account all gains and losses a signal goes through in a system as it is transmitted. The calculator calculates the power of the received signal given amplifier and antenna gains, and medium loss.

Antenna Downtilt and Coverage Calculator

Tools

This calculator will determine the correct antenna downtilt angle given the heights of the antennas and distance between them.

Inductor Quirks

Textbook

In an ideal case, an inductor acts as a purely reactive device. That…

Kirchhoff’s Voltage Law (KVL)

Textbook

What is Kirchhoff’s Voltage Law (KVL)? The principle known as…

Skin Depth Calculator

Tools

A tool designed to calculate skin depth based on the conductive material being used and the frequency of the signal.

AC Circuit Equations

Textbook

Inductive Reactance     Capacitive Reactance    …

Electric Shock

Worksheets - Electromechanical

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

Inductors

Textbook

An inductor is a passive two-terminal electrical component that…

Junction field-effect transistors (JFET)

Worksheets - Electromechanical

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

Programmable Logic Controllers

Worksheets - Electromechanical

The Programmable Logic Controller, or PLC, was invented in the late…

Brushless DC Motor

Textbook

Brushless DC motors were developed from conventional brushed DC motors…

Optoelectronic Devices

Worksheets - Electromechanical

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

Nonlinear Conduction

Textbook

“Advances are made by answering questions. Discoveries are made…

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.

Introduction to Electron Tubes

Textbook

An often neglected area of study in modern electronics is that of…

Design Project: Event Counter

Worksheets - Electromechanical

If your event sensing switch is mechanical in nature, you will likely…

Magnetic Units of Measurement

Textbook

If the burden of two systems of measurement for common quantities…

Trigonometric Equivalencies

Textbook

Multiplexers and Demultiplexers

Worksheets - Electromechanical

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

AC Instrumentation Transducers

Textbook

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

Digital Lab - 3-bit Binary Counter

Textbook

In this hands-on electronics experiment, build a 3-bit down counter using J-K flip-flops and learn about asynchronous counter functionality.

Early Tube History

Textbook

Thomas Edison, that prolific American inventor, is often credited with…

Flash ADC

Textbook

Also called the parallel A/D converter, this circuit is the simplest…

Simple Circuits

Worksheets - Electromechanical

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

Waveguides

Textbook

A waveguide is a special form of transmission line consisting of a…

RF Power Conversion Calculator

Tools

A tool designed to convert RF power from watts to decibels and vice versa

Vol I. Credits

Textbook

All entries arranged in alphabetical order of surname. Major…

Intro Lab - A Simple Lighting Circuit

Textbook

In this hands-on electronics experiment, you will build a battery-operated circuit with a light and learn about open and short circuit failures.

Symmetric Stripline Impedance Calculator

Tools

This calculator helps you compute the characteristic impedance of a symmetric stripline.

Oscillator Circuits

Worksheets - Electromechanical

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

AC Lab - Sensitive Voltage Detector with Audio Output

Textbook

In this hands-on electronics experiment, you will construct a voltage detector with adjustable sensitivity and audio output, and you will learn a method for detecting small electrical signals without an oscilloscope.