Categories

Vacuum Tube Audio Amplifier

Textbook

PARTS AND MATERIALS One 12AX7 dual triode vacuum tube Two power…

What is Alternating Current (AC)?

Textbook

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

Tesla Polyphase Induction Motors

Textbook

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

Servo Motor Systems

Worksheets - Motor Control

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

Torque Conversion Calculator

Tools

A tool designed to convert between units of torque

Stepper Motor Calculator

Tools

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

Inductive Reactance

Worksheets - Motor Control

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

Design Project: DC Motor

Worksheets - Motor Control

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

Motor Control Circuits

Textbook

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

Contactors

Textbook

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

Automotive Alternator

Textbook

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

AC Motor Control Circuits

Worksheets - Motor Control

Perhaps the most challenging aspect of interpreting ladder diagrams,…

Flyback Switch Mode Regulator Calculator

Tools

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

CMOS 555 Long Duration Flyback LED Flasher

Textbook

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

Polyphase Motor Design

Textbook

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

Synchronous Motors

Textbook

Single Phase Synchronous Motors Single-phase synchronous motors are…

AC Motor Theory

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

DC Generator Theory

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

Stepper Motors

Textbook

Stepper Motor vs Servo Motor A stepper motor is a…

Oscilloscope Trigger Controls

Worksheets - Motor Control

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

PC Oscilloscope

Textbook

PARTS AND MATERIALS IBM-compatible personal computer with sound card,…

The R/2nR DAC: Binary-Weighted-Input Digital-to-Analog Converter

Textbook

What Is a R/2nR DAC Circuit? The R/2nR DAC circuit, otherwise known as…

AC Generator Theory

Worksheets - Motor Control

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

Embedded Microstrip Impedance Calculator

Tools

This calculator helps you compute the characteristic impedance of an embedded microstrip.

Zener Diodes

Worksheets - Motor Control

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

A Very Simple Circuit

Textbook

Parts and Materials 6-volt battery 6-volt incandescent lamp Jumper…

Electrical Conduction in Semiconductors

Worksheets - Motor Control

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

Differential Equations

Textbook

As opposed to normal equations where the solution is a number, a…

Monostable Multivibrators

Textbook

We’ve already seen one example of a monostable multivibrator in…

Semiconductor Manufacturing Techniques

Textbook

The manufacture of only silicon based semiconductors is described…

Mutual Inductance

Textbook

If two coils of wire are brought into close proximity with each other…

Parallel Resistance Calculator

Tools

Calculate the total resistance of resistors in parallel with ease!

Electric Shock

Worksheets - Motor Control

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

Introduction to Combinational Logic Functions

Textbook

The term “combinational” comes to us from mathematics. In…

Nonlinear Conduction

Textbook

“Advances are made by answering questions. Discoveries are made…

The Thyristor

Textbook

A thyristor is a device that has a number of unusual characteristics.…

Reluctance Motor

Textbook

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

Circuit Effects

Textbook

The principle of non-sinusoidal, repeating waveforms being equivalent…

Flip-Flop Circuits

Worksheets - Motor Control

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

What is Alternating Current (AC)?

Textbook

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

Pulsed-light Sensor

Textbook

PARTS AND MATERIALS Two 6-volt batteries One NPN…

Demultiplexers

Textbook

A demultiplexer, sometimes abbreviated dmux, is a circuit that has one…

Memory Devices

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

Commutating Diode

Textbook

PARTS AND MATERIALS 6 volt battery Power transformer, 120VAC step-down…

Basic Electricity Worksheet

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What is the purpose of the switch shown in this schematic diagram?

Digital Logic Signals

Worksheets - Motor Control

A rheostat (variable resistor) and a switch are both examples of…

Contributors (9)

Textbook

Contributors to this chapter are listed in chronological order of…

Transistor Ratings and Packages (BJT)

Textbook

Like all electrical and electronic components, transistors are limited…

CMOS Logic Gates

Worksheets - Motor Control

Counting practice: count from zero to thirty-one in binary, octal, and…

Phasing

Textbook

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

Solid-state Relays

Textbook

Limitations of Electromechanical Relays As versatile as…

Time-delay Relays

Textbook

What are Time-Delay Relays? Some relays are constructed with a kind of…

Absolute dB scales

Textbook

Decibel as Absolute Unit of Power It is also possible to use the…

Amplifier Circuits

Textbook

Note, Q3 and Q4 in the figure below are complementary, NPN and PNP…

Parallel R, L, and C

Textbook

We can take the same components from the series circuit and rearrange…

Programmable Logic Controllers

Worksheets - Motor Control

The Programmable Logic Controller, or PLC, was invented in the late…

Introduction to SPICE

Textbook

“With Electronics Workbench, you can create circuit schematics…

Basic Ammeter Use

Worksheets - Motor Control

Show how this ammeter would be connected to the light bulb circuit to…

The Quadratic Formula

Textbook

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

Biasing Techniques (BJT)

Textbook

In the common-emitter section of this chapter, we saw a SPICE analysis…