What is Alternating Current (AC)?

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

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Brushless DC Motor

Brushless DC motors were developed from conventional brushed DC motors…

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Lenz’s Law and Faraday’s Law Calculator

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.

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Tools

AC Lab - Large Induction Motor

In this hands-on AC electronics experiment, build a large AC permanent capacitor split-phase induction motor and learn the principles of AC induction motor function.

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AC Lab - Induction Motor

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.

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Tube Lab - Vacuum Tube Audio Amplifier

In this hands-on electronics experiment, build an audio amplifier using a vacuum tube (triode) and learn about voltage transformers, how to build a high-voltage DC power supply, and how to use a transformer for impedance matching.

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Motor Control Circuits

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

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DC Motor Theory

If the ends of a wire loop are attached to two half-circular metal…

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Worksheets - DC Motors

Boolean Algebra

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

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Worksheets - DC Motors

555 Lab - LED Flasher with Inductive Flyback

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.

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Design Project: DC Motor

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

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Worksheets - DC Motors

Rectifier Circuits

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

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Worksheets - DC Motors

Stepper Motor Calculator

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

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Tools

Torque Conversion Calculator

A tool designed to convert between units of torque

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Tools

AC Motor Control Circuits

Perhaps the most challenging aspect of interpreting ladder diagrams,…

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Worksheets - DC Motors

Linear Computational Circuitry

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

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Worksheets - DC Motors

What is Alternating Current (AC)?

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

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DC Lab - Potentiometer as a Rheostat

In this hands-on electronics experiment, you will use a potentiometer as a variable resistor to control the speed of a motor and learn how to connect a potentiometer as a rheostat.

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Other Specialized Motors

Shaded Pole Induction Motor An easy way to provide starting torque to…

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AC Instrumentation Transducers

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

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Intermediate Electromagnetism and Electromagnetic Induction

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

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Worksheets - DC Motors

Selsyn (Synchro) Motors

Normally, the rotor windings of a wound rotor induction motor are…

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The J-K Flip-Flop

Another variation on a theme of bistable multivibrators is the J-K…

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The R/2nR DAC: Binary-Weighted-Input Digital-to-Analog Converter

What Is a R/2nR DAC Circuit? The R/2nR DAC circuit, otherwise known as…

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Conductor Ampacity

The smaller the cross-sectional area of any given wire, the greater…

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Time Constant Circuits

Generally speaking, how many “time constants” worth of time does…

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Worksheets - DC Motors

Introduction to Combinational Logic Functions

The term “combinational” comes to us from mathematics. In…

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Hand Calculator Use

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

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Critical Temperatures for Superconductors

Critical temperatures given in Kelvins Material Element/Alloy Critical…

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The Pentode

Another strategy for addressing the problem of secondary electrons…

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Successive Approximation ADC

One method of addressing the digital ramp ADC’s shortcomings is…

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Active Loads in Amplifier Circuits

We know that the current in a series circuit may be calculated with…

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Worksheets - DC Motors

Voltage, Current, and Resistance

Voltage is commonly defined as “electrical pressure.” The unit of…

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Worksheets - DC Motors

Performance-Based Assessments for AC Circuit Competencies

(Template)

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Worksheets - DC Motors

Troubleshooting Series and Parallel Circuits

The jobs of electronics engineers and technicians frequently entail…

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Operational Amplifier Models

While mention of operational amplifiers typically provokes visions of…

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Electric Shock Data

The table of electric currents and their various bodily effects was…

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Bipolar Junction Transistors as Switches

Solid-state switching circuits usually keep their constituent…

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Worksheets - DC Motors

Mesh Current Method (Loop Current Method)

This page provides a step-by-step introduction to using the mesh…

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Calculating Electric Power

Learn the Power Formula We’ve seen the formula for determining…

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What is Alternating Current (AC)?

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

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Textbook

Differentiator and Integrator Circuits

By introducing electrical reactance into the feedback loops of an…

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Textbook