Categories

The S-R Latch

Textbook

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

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.

Time-Delay Electromechanical Relays

Worksheets - Motors

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

Arc Flash and Arc Blast

Worksheets - Motors

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

Lorentz Force Calculator

Tools

This calculator will determine the combined Lorentz force exerted on a charged particle moving through both an electric field and a magnetic field.

Performance-Based Assessments for Digital Circuit Competencies

Worksheets - Motors

(Template)

Contact “Normal” State and Make/Break Sequence

Textbook

Any kind of switch contact can be designed so that the contacts…

Thyristor Application Circuits

Worksheets - Motors

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

Latch Circuits

Worksheets - Motors

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

Electromechanical Relay Logic

Worksheets - Motors

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

Series and Parallel AC Circuits

Worksheets - Motors

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

Contactors

Textbook

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

Boolean Algebra

Worksheets - Motors

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…

Permissive and Interlock Circuits

Textbook

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

Bipolar Junction Transistors as Switches

Worksheets - Motors

Solid-state switching circuits usually keep their constituent…

AC Motor Control Circuits

Worksheets - Motors

Perhaps the most challenging aspect of interpreting ladder diagrams,…

DC Motor Control Circuits

Worksheets - Motors

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

The Silicon-Controlled Switch (SCS)

Textbook

If we take the equivalent circuit of an SCR and add another external…

Switch Types

Textbook

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

Switches, Hand Actuated

Textbook

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

Pulse Width Modulation

Textbook

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

Digital Logic Functions

Textbook

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

Contactors

Textbook

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

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

Textbook

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

Programmable Logic Controllers (PLC)

Textbook

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

Monostable Multivibrators

Textbook

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

Simple Combination Lock

Textbook

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

The S-R Latch

Textbook

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

The Bipolar Junction Transistor (BJT) as a Switch

Textbook

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

Transformer—Power Supply

Textbook

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

Miscellaneous Diode Applications

Worksheets - Motors

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

Inductive Reactance

Worksheets - Motors

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

AC Commutator Motors

Textbook

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

Fuses

Textbook

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

Flyback Switch Mode Regulator Calculator

Tools

A calculator for computing several parameters needed in the design of a flyback switch mode regulator

Heat Sink Calculator

Tools

This calculator helps determine the maximum temperature a device can withstand

AC Motor Control Circuits

Worksheets - Motors

Perhaps the most challenging aspect of interpreting ladder diagrams,…

Torque Conversion Calculator

Tools

A tool designed to convert between units of torque

Impedance Matching With Transformers

Worksheets - Motors

Suppose you were to take a 3 kW electric heater rated for 240 VAC and…

Electrical Connections

Worksheets - Motors

What, exactly, is necessary to establish electrical continuity between…

Common-Emitter Amplifier

Textbook

PARTS AND MATERIALS One NPN transistor—model 2N2222 or 2N3403…

Algebraic Substitution for Electric Circuits

Worksheets - Motors

There are two basic Ohm’s Law equations: one relating voltage,…

Control Circuits

Textbook

Differential Transistor Amplifiers

Worksheets - Motors

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

Factors Affecting Capacitance

Textbook

There are three basic factors of capacitor construction determining…

Arc Flash and Arc Blast

Worksheets - Motors

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

Contact “Bounce”

Textbook

When a switch is actuated and contacts touch one another under the…

The Cascode Amplifier

Textbook

While the C-B (common-base) amplifier is known for wider bandwidth…

Band-stop Filters

Textbook

How to Create a Band-stop Filter? Also called band-elimination,…

Historical, Nonmechanical Memory Technologies

Textbook

Perhaps the most ingenious technique was that of the delay line. A…

Multiplexers

Textbook

A multiplexer, abbreviated mux, is a device that has multiple inputs…

Positive Feedback OpAmp Circuits

Worksheets - Motors

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

Three-phase Y and Delta Configurations

Textbook

Three-phase Wye(Y) Connection Initially, we explored the idea of…

Electromagnetic Induction

Textbook

While Oersted’s surprising discovery of electromagnetism paved…

Special Transformers and Applications

Textbook

Impedance Matching Because transformers can step voltage and current…

The Triode

Textbook

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

Introduction to Diodes And Rectifiers

Textbook

All About Diodes A diode is an electrical device allowing current to…

Voltage Divider

Textbook

PARTS AND MATERIALS Calculator (or pencil and paper for doing…

CMOS 555 Long Duration Blue LED Flasher

Textbook

PARTS AND MATERIALS Two AAA Batteries Battery Clip (Radio Shack…