Latest Relays Education

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Time-Delay Electromechanical Relays

Worksheets - Relays

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

DC Generator Theory

Worksheets - Relays

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

Permissive and Interlock Circuits

Textbook

A practical application of switch and relay logic is in control…

Protective Relays

Textbook

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

Special-output Gates

Textbook

Complementary Output Gates It is sometimes desirable to have a logic…

Arc Flash and Arc Blast

Worksheets - Relays

Electromechanical relays used to start and stop high-power electric…

Switch Types

Textbook

Though it may seem strange to cover the elementary topic of electrical…

What is Alternating Current (AC)?

Textbook

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

Solid-state Relays

Textbook

Limitations of Electromechanical Relays As versatile as…

AC Motor Control Circuits

Worksheets - Relays

Perhaps the most challenging aspect of interpreting ladder diagrams,…

Relay Construction

Textbook

Electricity and Magnetism An electric current through a conductor will…

Monostable Multivibrators

Textbook

We’ve already seen one example of a monostable multivibrator in…

Latch Circuits

Worksheets - Relays

What do you think this logic buffer gate will do, with the output…

Time Constant Calculations

Worksheets - Relays

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

TTL Logic Gates

Worksheets - Relays

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

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.

Fail-safe Design

Textbook

Logic circuits, whether comprised of electromechanical relays or…

Thyristor Application Circuits

Worksheets - Relays

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

Performance-Based Assessments for Digital Circuit Competencies

Worksheets - Relays

(Template)

Flip-Flop Circuits

Worksheets - Relays

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

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.

Switches, Hand Actuated

Textbook

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

Protective Relay Circuits

Worksheets - Relays

Protective relays are special power-sensing devices whose job it is to…

Time Constant Calculations

Worksheets - Relays

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

AC Lab - Build a Transformer

Textbook

In this hands-on AC electronics experiment, build a simple transformer and learn some important transformer fundamentals including voltage step-up and step-down.

Winding Configurations

Textbook

Transformers with Multiple Secondaries Transformers are very versatile…

Monostable Multivibrators

Textbook

We’ve already seen one example of a monostable multivibrator in…

Heat Sink Calculator

Tools

This calculator helps determine the maximum temperature a device can withstand

Fuses

Textbook

Normally, the ampacity rating of a conductor is a circuit design…

Special-output Gates

Textbook

Complementary Output Gates It is sometimes desirable to have a logic…

Thyristor Application Circuits

Worksheets - Relays

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

Arc Flash and Arc Blast

Worksheets - Relays

Electromechanical relays used to start and stop high-power electric…

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

Textbook

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

Permissive and Interlock Circuits

Textbook

A practical application of switch and relay logic is in control…

Inductive Reactance

Worksheets - Relays

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

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.

Synchronous Condenser

Textbook

Synchronous motors load the power line with a leading power factor.…

Electromechanical Relay Logic

Worksheets - Relays

In ladder logic symbolism, an electromechanical relay coil is shown as…

The TRIAC

Textbook

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

Contactors

Textbook

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

The Bipolar Junction Transistor (BJT) as a Switch

Textbook

Bipolar junction transistors (Also known as BJTs) can be used as an…

DC Bridge Circuits

Worksheets - Relays

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

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.

Polar Form and Rectangular Form Notation for Complex Numbers

Textbook

In order to work with complex numbers without drawing vectors, we…

Practical considerations - Digital Communication

Textbook

A principal consideration for industrial control networks, where the…

EIRP Calculator

Tools

A helpful tool for computing the Effective Isotropic Radiated Power (EIRP) of an antenna

AC Capacitor Circuits

Textbook

Capacitors Vs. Resistors Capacitors do not behave the same as…

Si Lab - BJT Common-emitter Amplifier

Textbook

In this hands-on semiconductor electronics experiment, construct a common-emitter amplifier using a bipolar junction transistor (BJT) and learn about amplifier gain and feedback.

Scientific Notation

Textbook

In many disciplines of science and engineering, very large and very…

Special Diodes

Worksheets - Relays

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

Bipolar Transistor Biasing Circuits

Worksheets - Relays

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

Karnaugh Mapping

Worksheets - Relays

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

Quantum Physics

Textbook

“I think it is safe to say that no one understands quantum…

Vectors and AC Waveforms

Textbook

OK, so how exactly can we represent AC quantities of voltage or…

Switch Types

Textbook

Though it may seem strange to cover the elementary topic of electrical…

Inductance

Worksheets - Relays

∫f(x) dx Calculus alert! One of the fundamental principles of…

Basic Circuit Troubleshooting

Worksheets - Relays

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

Coil Inductance Calculator

Tools

This calculator computes the inductance of a wire coil.

Decoder

Textbook

A decoder is a circuit that changes a code into a set of signals. It…

Kirchhoff’s Laws

Worksheets - Relays

Many electronic circuits use what is called a split or a dual power…