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Introduction to AC Motors

Textbook

After the introduction of the DC electrical distribution system by…

Servo Motor Systems

Worksheets - Encoders

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

AC Instrumentation Transducers

Textbook

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

DC Generator Theory

Worksheets - Encoders

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

Selsyn (Synchro) Motors

Textbook

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

Stepper Motors

Textbook

Stepper Motor vs Servo Motor A stepper motor is a…

AC Motor Theory

Worksheets - Encoders

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

Tesla Polyphase Induction Motors

Textbook

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

AC Generator Theory

Worksheets - Encoders

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

Single-phase Induction Motors

Textbook

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

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…

What is Alternating Current (AC)?

Textbook

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

Reluctance Motor

Textbook

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

Brushless DC Motor

Textbook

Brushless DC motors were developed from conventional brushed DC motors…

Synchronous Motors

Textbook

Single Phase Synchronous Motors Single-phase synchronous motors are…

What is Alternating Current (AC)?

Textbook

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

Design Project: DC Motor

Worksheets - Encoders

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

Inductive Reactance

Worksheets - Encoders

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

Oscilloscope Trigger Controls

Worksheets - Encoders

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

Stepper Motors

Textbook

Stepper Motor vs Servo Motor A stepper motor is a…

AC Generator Theory

Worksheets - Encoders

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…

Electric Shock

Worksheets - Encoders

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

Introduction to AC Motors

Textbook

After the introduction of the DC electrical distribution system by…

Automotive Alternator

Textbook

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

Tesla Polyphase Induction Motors

Textbook

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

Contactors

Textbook

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

Synchronous Motors

Textbook

Single Phase Synchronous Motors Single-phase synchronous motors are…

DC Motor Control Circuits

Worksheets - Encoders

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

Step-up, Step-down, and Isolation Transformers

Worksheets - Encoders

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

Microcontroller Principles

Worksheets - Encoders

Read the following quotation, and then research the term…

AC Motor Control Circuits

Worksheets - Encoders

Perhaps the most challenging aspect of interpreting ladder diagrams,…

Bipolar Junction Transistors as Switches

Worksheets - Encoders

Solid-state switching circuits usually keep their constituent…

Induction Motor

Textbook

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

Stepper Motor Calculator

Tools

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

Amplifiers

Textbook

Practical Benefit of Active Devices The practical benefit of active…

Semiconductor Devices in SPICE

Textbook

The SPICE (Simulation Program, Integrated Circuit Emphesis)…

AC Waveforms

Worksheets - Encoders

Radio waves are comprised of oscillating electric and magnetic fields,…

Protective Relay Circuits

Worksheets - Encoders

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

Series R, L, and C

Textbook

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

Three-phase Y and Delta Configurations

Textbook

Three-phase Wye(Y) Connection Initially, we explored the idea of…

Stepper Motors

Worksheets - Encoders

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

IGBTs

Textbook

Because of their insulated gates, IGFETs of all types have extremely…

The Instrumentation Amplifier

Textbook

What Is an Instrumentation Amplifier? An instrumentation amplifier…

Single-phase Power Systems

Textbook

Single phase power system schematic diagram shows little about the…

Signal Modulation

Worksheets - Encoders

A modern method of electrical power control involves inserting a…

Standing Waves and Resonance

Textbook

Whenever there is a mismatch of impedance between transmission line…

Band Theory of Solids

Textbook

Quantum physics describes the states of electrons in an atom according…

Finite-state Machine

Textbook

Feedback is a fascinating engineering principle. It can turn a rather…

Bipolar Junction Transistors

Textbook

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

Maximum Power Transfer Theorem

Textbook

The Maximum Power Transfer Theorem is not so much a means of analysis…

Rectifying Diodes

Worksheets - Encoders

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

The J-K Flip-Flop

Textbook

Another variation on a theme of bistable multivibrators is the J-K…

IGFET Quirks

Textbook

Solving Simultaneous Equations: The Substitution Method and the Addition Method

Textbook

What are Simultaneous Equations and Systems of Equations? The terms…