Categories

Fail-safe Design

Textbook

Logic circuits, whether comprised of electromechanical relays or…

Introduction to AC Motors

Textbook

After the introduction of the DC electrical distribution system by…

Flip-Flop Circuits

Worksheets - Electromechanical

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

Tesla Polyphase Induction Motors

Textbook

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

Brushless DC Motor

Textbook

Brushless DC motors were developed from conventional brushed DC motors…

The Silicon-Controlled Switch (SCS)

Textbook

If we take the equivalent circuit of an SCR and add another external…

Light-Pulse Switch

Worksheets - Electromechanical

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

Circuit With a Switch

Textbook

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

Transformer—Power Supply

Textbook

PARTS AND MATERIALS Power transformer, 120VAC step-down to 12VAC,…

Wound Rotor Induction Motors

Textbook

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

Linear Computational Circuitry

Worksheets - Electromechanical

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

Stepper Motors

Textbook

Stepper Motor vs Servo Motor A stepper motor is a…

Bipolar Junction Transistors as Switches

Worksheets - Electromechanical

Solid-state switching circuits usually keep their constituent…

DC Motor Control Circuits

Worksheets - Electromechanical

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

CMOS Logic Gates

Worksheets - Electromechanical

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

Pulse Width Modulation

Textbook

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

Digital Logic Functions

Textbook

We can construct a simple logic functions for our hypothetical lamp…

Encoders and Decoders

Worksheets - Electromechanical

What does it mean, in general terms, to encode something? Conversely,…

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

Textbook

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

Resonance

Worksheets - Electromechanical

The Q factor of a series inductive circuit is given by the following…

A Very Simple Circuit

Textbook

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

Boolean Algebra

Worksheets - Electromechanical

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

Conversion From Decimal Numeration

Textbook

Because octal and hexadecimal numeration systems have bases that are…

How to Build a Current Mirror Circuit

Textbook

PARTS AND MATERIALS   Two NPN transistors—models 2N2222 or…

Building Simple Resistor Circuits

Textbook

In the course of learning about electricity, you will want to…

Biasing Techniques (JFET)

Textbook

Voltmeter Design

Worksheets - Electromechanical

Suppose I were about to measure an unknown voltage with a manual-range…

Simple Parallel Circuits

Textbook

On this page, we’ll outline the three principles you should…

The Common-source Amplifier (IGFET)

Textbook

Permanent Magnets

Textbook

Centuries ago, it was discovered that certain types of mineral rock…

Table (portrait view)

Textbook

Periodic table of chemical elements.

Active-mode Operation (BJT)

Textbook

When a transistor is in the fully-off state (like an open switch), it…

Introduction to Conductance and Conductors

Textbook

By now you should be well aware of the correlation between electrical…

TTL NOR and OR gates

Textbook

TTL Circuit Analysis Let’s examine the following TTL circuit and…

Peak Detector

Textbook

A peak detector is a series connection of a diode and a…

Simple Op-Amp

Textbook

PARTS AND MATERIALS Two 6-volt batteries Four NPN…

Digital Ramp ADC

Textbook

Also known as the stairstep-ramp, or simply counter A/D converter,…

Vol II. Credits

Textbook

All entries arranged in alphabetical order of surname. Major…

The Bipolar Junction Transistor (BJT) as a Switch

Textbook

Bipolar junction transistors (Also known as BJTs) can be used as an…

Waveform Analysis

Textbook

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

Edge Coupled Trace Inductance Calculator

Tools

This calculator helps you compute for the inductance of an edge coupled trace.

Practical Considerations - Inductors

Textbook

Inductors, like all electrical components, have limitations which must…

Static Electricity

Textbook

It was discovered centuries ago that certain types of materials would…

Resistors

Textbook

Because the relationship between voltage, current, and resistance in…

Wavelength (TEM) Calculator

Tools

This calculator determines the wavelength of a signal given the frequency and dielectric constant.

Magnetic Fields and Inductance

Textbook

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

Parallel Resistor-Capacitor Circuits

Textbook

Using the same value components in our series example circuit, we will…

Safe Meter Usage

Textbook

Using an electrical meter safely and efficiently is perhaps the most…

pH Measurement

Textbook

A very important measurement in many liquid chemical processes…

Attenuators

Textbook

What is Attenuators? Attenuators are passive devices. It is…

Complex Circuits

Textbook

What do we do if we come across a circuit more complex than the simple…

Microprocessor Programming

Worksheets - Electromechanical

What is the difference between a JMP (“jump”) instruction and a…

Decimal versus Binary Numeration

Textbook

Let’s count from zero to twenty using four different kinds of…

Voltage Divider Circuits

Textbook

Let’s analyze a simple series circuit and determine the voltage…

Binary Count Sequence

Textbook

If we examine a four-bit binary count sequence from 0000 to 1111, a…

Resistor Color Codes

Textbook

Try out our Resistor Color Code Calculator in our Tools section.…

TTL NOR and OR gates

Textbook

TTL Circuit Analysis Let’s examine the following TTL circuit and…

Single-ended and Differential Amplifiers

Textbook

For ease of drawing complex circuit diagrams, electronic amplifiers…

Digital Logic With Feedback

Textbook

With simple gate and combinational logic circuits, there is a definite…

Component Failure Analysis

Textbook

The job of a technician frequently entails…