Categories

Other Specialized Motors

Textbook

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

Step-up, Step-down, and Isolation Transformers

Worksheets - Motor Control

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

Introduction to AC Motors

Textbook

After the introduction of the DC electrical distribution system by…

Torque Conversion Calculator

Tools

A tool designed to convert between units of torque

Induction Motor

Textbook

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

DC Motor Control Circuits

Worksheets - Motor Control

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

AC Motor Control Circuits

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Perhaps the most challenging aspect of interpreting ladder diagrams,…

Polyphase Motor Design

Textbook

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

Reluctance Motor

Textbook

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

Induction Motor, Large

Textbook

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

Linear Computational Circuitry

Worksheets - Motor Control

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

Single-phase Induction Motors

Textbook

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

What is Alternating Current (AC)?

Textbook

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

Electric Shock

Worksheets - Motor Control

It is sometimes said regarding electrical safety that, Ït’s not the…

Selsyn (Synchro) Motors

Textbook

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

CMOS 555 Long Duration Flyback LED Flasher

Textbook

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

Stepper Motors

Textbook

Stepper Motor vs Servo Motor A stepper motor is a…

Automotive Alternator

Textbook

Project Parts and Materials Automotive alternator (one required, but…

Servo Motor Systems

Worksheets - Motor Control

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

Synchronous Motors

Textbook

Single Phase Synchronous Motors Single-phase synchronous motors are…

The DIAC

Textbook

Like all diodes, Shockley diodes are unidirectional devices; that is,…

Magnetism

Worksheets - Motor Control

A permanent magnet is a device that retains a magnetic field without…

Flash ADC

Textbook

Also called the parallel A/D converter, this circuit is the simplest…

Circuit With a Switch

Textbook

PARTS AND MATERIALS 6-volt battery Low-voltage incandescent lamp…

AC Motor Theory

Worksheets - Motor Control

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

Capacitive Reactance

Worksheets - Motor Control

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

The Instrumentation Amplifier

Textbook

What Is an Instrumentation Amplifier? An instrumentation amplifier…

Safe Circuit Design

Textbook

As we saw earlier, a power system with no secure connection to earth…

Depletion-type IGFETs

Textbook

Insulated gate field-effect transistors are unipolar devices just like…

Comparator with Hysteresis (Schmitt Trigger) Calculator

Tools

This calculator will compute the required resistor ratio (R2/R1) and reference voltage (VREF) to create the desired high (VTH) and low (VTL) threshold voltages in a non-inverting comparator circuit with hysteresis (commonly called a Schmitt trigger).

Calculating Power Factor

Textbook

As was mentioned before, the angle of this “power…

Contact “Normal” State and Make/Break Sequence

Textbook

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

Wire Self Inductance Calculator

Tools

This calculator will help compute the inductance of a length of wire.

Inductors and Calculus

Textbook

Inductors do not have a stable “resistance” as conductors…

Multi-Stage Amplifier

Textbook

PARTS AND MATERIALS Three NPN transistors—model 2N2222 or 2N3403…

Light-Pulse Switch

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It is fairly important to use large value resistors (10 MΩ works…

The Exclusive-OR Function: The XOR Gate

Textbook

What Is an XOR Gate? One element conspicuously missing from the set of…

Early Tube History

Textbook

Thomas Edison, that prolific American inventor, is often credited with…

AC Motor Control Circuits

Worksheets - Motor Control

Perhaps the most challenging aspect of interpreting ladder diagrams,…

Wire Microstrip Impedance Calculator

Tools

A helpful tool for calculating the impedance of a wire microstrip.

Battery Construction

Textbook

The word battery simply means a group of similar components. In…

The Common-drain Amplifier (IGFET)

Textbook

Introduction to Digital Integrated Circuits

Textbook

Digital circuits are circuits dealing with signals restricted to the…

Introduction to Solid-state Device Theory

Textbook

This chapter will cover the physics behind the operation of…

Op-Amp Practical Considerations

Textbook

Real operational amplifiers have some imperfections compared to an…

Phase-locked Loops

Textbook

The Exclusive-OR Function: The XOR Gate

Textbook

What Is an XOR Gate? One element conspicuously missing from the set of…

Why digital?

Textbook

Although many textbooks provide good introductions to digital memory…

Thermoelectricity

Textbook

PARTS AND MATERIALS Length of bare (uninsulated) copper wire Length of…

Bipolar Junction Transistors

Textbook

The bipolar junction transistor (BJT) was named because its operation…

Introduction to Karnaugh Mapping

Textbook

Why learn about Karnaugh maps? The Karnaugh map, like Boolean…

Design Project: Radio Transmitter

Worksheets - Motor Control

Research the FCC (Federal Communication Commission) guidelines on…

Some Examples with AC Circuits

Textbook

Let’s connect three AC voltage sources in series and use complex…

Voltage Divider

Textbook

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

The 555 IC

Textbook

The 555 integrated circuit is the most popular chip ever manufactured.…

Diode Switching Circuits

Textbook

Diodes can perform switching and digital logic operations. Forward and…

Electromechanical Relay Logic

Worksheets - Motor Control

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

Step-up, Step-down, and Isolation Transformers

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

Protective Relay Circuits

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Protective relays are special power-sensing devices whose job it is to…

Performance-Based Assessments for AC Circuit Competencies

Worksheets - Motor Control

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