Categories

What is Alternating Current (AC)?

Textbook

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

Introduction to AC Motors

Textbook

After the introduction of the DC electrical distribution system by…

Single-phase Induction Motors

Textbook

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

Stepper Motors

Textbook

Stepper Motor vs Servo Motor A stepper motor is a…

Servo Motor Systems

Worksheets - Encoders

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

DC Generator Theory

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

Brushless DC Motor

Textbook

Brushless DC motors were developed from conventional brushed DC motors…

AC Instrumentation Transducers

Textbook

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

AC Generator Theory

Worksheets - Encoders

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

AC Commutator Motors

Textbook

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

DC Motor Theory

Worksheets - Encoders

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

Tesla Polyphase Induction Motors

Textbook

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

AC Motor Theory

Worksheets - Encoders

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

Reluctance Motor

Textbook

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

Selsyn (Synchro) Motors

Textbook

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

Synchronous Motors

Textbook

Single Phase Synchronous Motors Single-phase synchronous motors are…

Contactors

Textbook

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

DC Motor Control Circuits

Worksheets - Encoders

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

Stepper Motor Calculator

Tools

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

Tesla Polyphase Induction Motors

Textbook

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

Induction Motor

Textbook

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

Synchronous Motors

Textbook

Single Phase Synchronous Motors Single-phase synchronous motors are…

Step-up, Step-down, and Isolation Transformers

Worksheets - Encoders

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

Design Project: DC Motor

Worksheets - Encoders

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

Automotive Alternator

Textbook

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

Other Specialized Motors

Textbook

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

Electric Shock

Worksheets - Encoders

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

AC Instrumentation Transducers

Textbook

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

Motor Control Circuits

Textbook

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

Linear Computational Circuitry

Worksheets - Encoders

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

Flyback Switch Mode Regulator Calculator

Tools

A calculator for computing several parameters needed in the design of a flyback switch mode regulator

Stepper Motors

Textbook

Stepper Motor vs Servo Motor A stepper motor is a…

Pulse Width Modulation

Textbook

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

Torque Conversion Calculator

Tools

A tool designed to convert between units of torque

Microcontroller Principles

Worksheets - Encoders

Read the following quotation, and then research the term…

DC Motor Theory

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

Atomic Structure

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Shown here is a simplified representation of an atom: the smallest…

Impedance Transformation

Textbook

Standing waves at the resonant frequency points of an open- or…

Phasing

Textbook

Since transformers are essentially AC devices, we need to be aware of…

pH Measurement

Textbook

A very important measurement in many liquid chemical processes…

Data Flow

Textbook

Buses and networks are designed to allow communication to occur…

Series and Parallel Component Equivalent Values

Textbook

Series and Parallel Resistances     Series and Parallel…

Simultaneous Equations for Circuit Analysis

Worksheets - Encoders

Solve this equation for the value of x: x + 5 = 8 How many exact…

The Command-line Interface

Textbook

If you’ve used DOS or UNIX operating systems before in a…

Polyphase Power Systems

Worksheets - Encoders

Explain the difference between a balanced polyphase system and an…

Electrical Transients

Textbook

This chapter explores the response of capacitors and inductors to…

Pi Attenuator Calculator

Tools

This calculator helps you determine the values of the resistors R1 and R2 to be used for a Pi Attenuator.

Binary Addition

Textbook

The Rules of Binary Addition Adding binary numbers is a very simple…

Power in Resistive and Reactive AC circuits

Textbook

Consider a circuit for a single-phase AC power system, where a 120…

“Ladder” Diagrams

Textbook

Ladder diagrams are specialized schematics commonly used to document…

Finite State Machines

Textbook

Up to now, every circuit that was presented was a combinatorial…

Kirchhoff’s Laws

Worksheets - Encoders

Many electronic circuits use what is called a split or a dual power…

Contact “Bounce”

Textbook

When a switch is actuated and contacts touch one another under the…

Noninverting Amplifier

Textbook

PARTS AND MATERIALS Operational amplifier, model 1458 or 353…

Display Tubes

Textbook

In addition to performing tasks of amplification and switching, tubes…

Boolean Algebra

Worksheets - Encoders

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