Categories

AC Generator Theory

Worksheets - Motor Control

If an electric current is passed through this wire, which direction…

Induction Motor, Large

Textbook

PARTS AND MATERIALS AC power source: 120VAC Capacitor, 3.3 µF…

Wound Rotor Induction Motors

Textbook

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

Induction Motor

Textbook

PARTS AND MATERIALS AC power source: 120VAC Capacitor, 3.3 µF…

Reluctance Motor

Textbook

The variable reluctance motor is based on the principle that an…

Step-up, Step-down, and Isolation Transformers

Worksheets - Motor Control

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

Stepper Motor Calculator

Tools

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

Pulse Width Modulation

Textbook

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

Introduction to AC Motors

Textbook

After the introduction of the DC electrical distribution system by…

What is Alternating Current (AC)?

Textbook

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

Design Project: DC Motor

Worksheets - Motor Control

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

AC Motor Theory

Worksheets - Motor Control

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

Contactors

Textbook

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

Boolean Algebra

Worksheets - Motor Control

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

Servo Motor Systems

Worksheets - Motor Control

Explain the operation of this “H-bridge” motor control circuit: At…

Brushless DC Motor

Textbook

Brushless DC motors were developed from conventional brushed DC motors…

Intermediate Electromagnetism and Electromagnetic Induction

Worksheets - Motor Control

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

Stepper Motors

Textbook

Stepper Motor vs Servo Motor A stepper motor is a…

Design Project: Stepper Motor Driver

Worksheets - Motor Control

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

Tesla Polyphase Induction Motors

Textbook

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

Analysis Techniques for Series Parallel Resistor Circuits

Textbook

Guidelines to Series-Parallel Combination Circuit Analysis The goal of…

Basic Electromagnetic Relays

Worksheets - Motor Control

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

Look-up Tables

Textbook

Having learned about digital memory devices in the last chapter, we…

The Quadratic Formula

Textbook

Solving for x in a given polynomial equation “ax2 + bx + c…

Variable Inductor

Textbook

PARTS AND MATERIALS Paper tube, from a toilet-paper roll Bar of iron…

Transistors, Hybrid

Textbook

In essence, the IGFET controls the base current of a BJT, which…

Stripline Trace Width Calculator

Tools

A calculator designed to calculate the trace width of a stripline based on the maximum current rating

RMS Voltage Calculator

Tools

This calculator calculates the RMS Voltage value from either the peak voltage, the peak-to-peak voltage, or the average voltage.

Parallel Wire Inductance Calculator

Tools

This tool is designed to calculate the inductance of two parallel wires

Arithmetic with Scientific Notation

Textbook

The benefits of scientific notation do not end with ease of writing…

Amplifiers

Textbook

Practical Benefit of Active Devices The practical benefit of active…

Special-purpose Diodes

Textbook

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

More on Spectrum Analysis

Textbook

Computerized Fourier analysis, particularly in the form of the FFT…

AC Inductor Circuits

Textbook

Resistors vs. Inductors Inductors do not behave the same way as…

The TRIAC

Textbook

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

Reluctance Motor

Textbook

The variable reluctance motor is based on the principle that an…

Kelvin (4-wire) Resistance Measurement

Textbook

Suppose we wished to measure the resistance of some component located…

Electronics as Science

Textbook

Electronics is a science, and a very accessible science at that. With…

Electron Versus Conventional Flow

Worksheets - Motor Control

In this electrical circuit, trace the direction of current through the…

Arc Flash and Arc Blast

Worksheets - Motor Control

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

Microstrip Impedance Calculator

Tools

This calculator helps you compute the characteristic impedance of a microstrip.

The “Operational” Amplifier

Textbook

Long before the advent of digital electronic technology, computers…

Introduction to Conductance and Conductors

Textbook

By now you should be well aware of the correlation between electrical…

Special-output Gates

Textbook

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

Phase-Locked Loops

Worksheets - Motor Control

This is a schematic for a simple VCO: The oscillator is of the RC…

Series DC Circuits Practice Worksheet with Answers

Worksheets - Motor Control

In this circuit, three resistors receive the same amount of current (4…

AC Resistor Circuits (Capacitive)

Textbook

Pure resistive AC circuit: voltage and current are in phase.  …

Pi-Match Impedance Matching Calculator

Tools

This calculator is designed to compute the parameters required to design a Pi-Match Impedance Circuit

Contributors (2)

Textbook

Contributors to this chapter are listed in chronological order of…

Calculus for Electric Circuits

Worksheets - Motor Control

∫f(x) dx Calculus alert! Calculus is a branch of mathematics that…

DC Motor Theory

Worksheets - Motor Control

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

Common-Emitter Amplifier

Textbook

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

Permeability and Saturation

Textbook

The nonlinearity of material permeability may be graphed for better…

Band-stop Filters

Textbook

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

Special-purpose Diodes

Textbook

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

More on AC “polarity”

Textbook

Complex numbers are useful for AC circuit analysis because they…

Voltmeter Impact on Measured Circuit

Textbook

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

Stepper Motors

Worksheets - Motor Control

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

Introduction to DC Circuits

Textbook

“DC” stands for Direct Current, which can refer to either…

Simple Op-Amp

Textbook

PARTS AND MATERIALS Two 6-volt batteries Four NPN…