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What is Alternating Current (AC)?

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 Motor

Brushless DC motors were developed from conventional brushed DC motors…


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AC Motor Control Circuits

AC Motor Control Circuits

Perhaps the most challenging aspect of interpreting ladder diagrams,…


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AC Lab - Automotive Alternator as AC Generator

AC Lab - Automotive Alternator as AC Generator

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.


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Contactors

Contactors

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


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AC Instrumentation Transducers

AC Instrumentation Transducers

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


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Basic Troubleshooting Strategies

Basic Troubleshooting Strategies

A chandelier has five light bulbs in it, and one of them is not…


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AC Motor Theory

AC Motor Theory

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


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DC Motor Theory

DC Motor Theory

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


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Servo Motor Systems

Servo Motor Systems

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


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DC Generator Theory

DC Generator Theory

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


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Synchronous Motors

Synchronous Motors

Single Phase Synchronous Motors Single-phase synchronous motors are…


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555 Lab - LED Flasher with Inductive Flyback

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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Wound Rotor Induction Motors

Wound Rotor Induction Motors

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


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Oscilloscope Trigger Controls

Oscilloscope Trigger Controls

A very useful tool for observing rotating objects is a strobe light.…


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Single-phase Induction Motors

Single-phase Induction Motors

A three-phase motor may be run from a single-phase power source.…


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AC Commutator Motors

AC Commutator Motors

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


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Stepper Motor Calculator

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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Selsyn (Synchro) Motors

Selsyn (Synchro) Motors

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


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Pulse Width Modulation

Pulse Width Modulation

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


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DC Motor Control Circuits

DC Motor Control Circuits

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


Worksheets - DC Motors

What is Alternating Current (AC)?

What is Alternating Current (AC)?

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


Textbook

Dielectric Strengths for Insulators

Dielectric Strengths for Insulators

Dielectric strength in kilovolts per inch (kV/in): Material*…


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Network Protocols

Network Protocols

Aside from the issues of the physical network (signal types and…


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Active-mode Operation (IGFET)

Active-mode Operation (IGFET)


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Design Project: Intercom System

Design Project: Intercom System

Design a passive circuit that will create a "split” ( V/-V) power…


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Characteristic Impedance

Characteristic Impedance

The Parallel Wires of Infinite Length Suppose, though, that we had a…


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Summer and Subtractor OpAmp Circuits

Summer and Subtractor OpAmp Circuits

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


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Potential Pitfalls

Potential Pitfalls

Fallacious reasoning and poor interpersonal relations account for more…


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Edge Coupled Microstrip Impedance Calculator

Edge Coupled Microstrip Impedance Calculator

This tool helps calculate the impedance of an edge-coupled microstrip.


Tools

What Are Zener Diodes?

What Are Zener Diodes?

What Is a Zener Diode? A Zener diode is a special type of rectifying…


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Battery Life Calculator

Battery Life Calculator

This calculator provides three options—basic, intermediate, and advanced—for determining expected battery life for microcontroller, Internet of Things (IoT), and edge processing systems with up to four different operating modes.


Tools

Contributors (1)

Contributors (1)

Contributors to this chapter are listed in chronological order of…


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Electrical Conduction in Semiconductors

Electrical Conduction in Semiconductors

In any electrically conductive substance, what are charge carriers?…


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Timer Circuits

Timer Circuits

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


Worksheets - DC Motors

Asymmetric Stripline Impedance Calculator

Asymmetric Stripline Impedance Calculator

This calculator helps you compute the characteristic impedance of an asymmetric stripline


Tools

Introduction to Solid-state Device Theory

Introduction to Solid-state Device Theory

This chapter will cover the physics behind the operation of…


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Re-drawing Complex Schematics

Re-drawing Complex Schematics

Typically, complex circuits are not arranged in nice, neat, clean…


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Magnetic Fields and Inductance

Magnetic Fields and Inductance

Whenever electrons flow through a conductor, a magnetic field will…


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Oscillator Circuits

Oscillator Circuits

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


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The Pentode

The Pentode

Another strategy for addressing the problem of secondary electrons…


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

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

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


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