Categories

DC Lab - Potentiometer as a Rheostat

Textbook

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.

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.

Thevenin’s, Norton’s, and Maximum Power Transfer Theorems

Worksheets - Motor Control

Suppose a 12 volt lead-acid battery has an internal resistance of 20…

Motor Control Circuits

Textbook

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

DC Generator Theory

Worksheets - Motor Control

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

Principles of Radio

Textbook

One of the more fascinating applications of electricity is in the…

AC Motor Theory

Worksheets - Motor Control

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…

Brushless DC Motor

Textbook

Brushless DC motors were developed from conventional brushed DC motors…

Design Project: Stepper Motor Driver

Worksheets - Motor Control

At first it may seem pointless to have the four buffer gates following…

Introduction to AC Motors

Textbook

After the introduction of the DC electrical distribution system by…

Polyphase Motor Design

Textbook

AC Motors Perhaps the most important benefit of polyphase AC power…

Instrumentation Amplifier Gain Calculator

Tools

The instrumentation amplifier calculator will assist in the design and analysis of a conventional instrumentation amplifier circuit by calculating the required resistor values and gain.

Tube Lab - Vacuum Tube Audio Amplifier

Textbook

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.

Other Specialized Motors

Textbook

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

The Importance of Electrical Safety

Textbook

With this lesson, I hope to avoid a common mistake found in…

DC Motor Theory

Worksheets - Motor Control

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

AC Lab - Automotive Alternator as AC Generator

Textbook

In this hands-on AC electronics experiment, you will use an automotive alternator to generate three-phase AC voltage and learn how alternators can function as both generators and motors.

Wheatstone Bridge Calculator

Tools

This calculator helps determine the resistance of a variable resistor within a Wheatstone bridge circuit or the differential voltage created across the bridge terminals.

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.

Stepper Motors

Worksheets - Motor Control

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

Step-up, Step-down, and Isolation Transformers

Worksheets - Motor Control

Calculate the voltage output by the secondary winding of a transformer…

Bridge Circuits

Textbook

No text on electrical metering could be called complete without a…

T-Match Impedance Matching Circuits

Tools

A tool designed to compute the values to be used in a T-match Impedance Circuit

Design Project: Telegraph System

Worksheets - Motor Control

What voltage will you choose to use for each of the station batteries?

Lock-out / Tag-out

Worksheets - Motor Control

In this motor control circuit, how would you ensure that there is no…

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.

Building a Differential Amplifier

Textbook

Differential Op-Amp Circuits An op-amp with no feedback is already a…

Introduction to Boolean Algebra

Textbook

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

Active Versus Passive Devices

Textbook

Passive Devices Components incapable of controlling current by means…

Enhancement-type IGFETs

Textbook

Phase-locked Loops

Textbook

Series R, L, and C

Textbook

Let’s take the following example circuit and analyze it:  …

Special-purpose Diodes

Textbook

Schottky diodes Schottky diodes are constructed of a metal-to-N…

Creating Custom Calibration Resistances

Textbook

Often in the course of designing and building electrical meter…

Inductance

Worksheets - Motor Control

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

Scientific Notation

Textbook

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

Quantum Devices

Textbook

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

Voltage Multipliers (Doublers, Triplers, Quadruplers, and More)

Textbook

A voltage multiplier is a specialized rectifier circuit producing…

Basic Ammeter Use

Worksheets - Motor Control

Show how this ammeter would be connected to the light bulb circuit to…

Boolean Relationships on Venn Diagrams

Textbook

The fourth example has A partially overlapping B. Though, we will…

Current Mirror BJTs

Textbook

Bipolar Junction Transistor or BJT Current Mirror An often-used…