All About Circuits

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Other Specialized Motors

Other Specialized Motors

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


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Bipolar Junction Transistors as Switches

Bipolar Junction Transistors as Switches

Solid-state switching circuits usually keep their constituent…


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Stepper Motors

Stepper Motors

Stepper Motor vs Servo Motor A stepper motor is a…


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Design Project: Stepper Motor Driver

Design Project: Stepper Motor Driver

At first it may seem pointless to have the four buffer gates following…


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Safety Grounding

Safety Grounding

In simple AC power systems, one of the two conductors is typically…


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Boolean Algebra

Boolean Algebra

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


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Basic Troubleshooting Strategies

Basic Troubleshooting Strategies

A chandelier has five light bulbs in it, and one of them is not…


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Stepper Motors

Stepper Motors

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


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Principles of Radio

Principles of Radio

One of the more fascinating applications of electricity is in the…


Textbook

Microcontroller Principles

Microcontroller Principles

Read the following quotation, and then research the term…


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DC Generator Theory

DC Generator Theory

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


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Intermediate Electromagnetism and Electromagnetic Induction

Intermediate Electromagnetism and Electromagnetic Induction

As an electric current is passed through a coil of wire, it creates a…


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Lorentz Force Calculator

Lorentz Force Calculator

This calculator will determine the combined Lorentz force exerted on a charged particle moving through both an electric field and a magnetic field.


Tools

AC Lab - Automotive Alternator as AC Generator

AC Lab - Automotive Alternator as AC Generator

In this hands-on AC electronics experiment, you will use an automotive alternator to generate three-phase AC voltage and learn how alternators can function as both generators and motors.


Textbook

Series Circuit Rules

Series Circuit Rules

Current Components in a series circuit share the same current: Itotal…


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Phasing

Phasing

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


Textbook

Complex Number Arithmetic

Complex Number Arithmetic

Since complex numbers are legitimate mathematical entities, just like…


Textbook

BJT Amplifier Troubleshooting

BJT Amplifier Troubleshooting

As an instructor of electronics, I am called upon frequently to help…


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Diodes

Diodes

A diode is an electronics component made from a combination of a…


Textbook

555 Lab - Oscillator With Hysteresis

555 Lab - Oscillator With Hysteresis

In this hands-on electronics experiment, build an oscillator with hysteresis from a Schmitt trigger and learn how to use it to create an RC oscillator and a method to configure a 555 timer as an astable multivibrator.


Textbook

Common Sources of Hazard

Common Sources of Hazard

Of course, there is a danger of electrical shock when directly…


Textbook

Stripline Crosstalk Calculator

Stripline Crosstalk Calculator

This tool is designed to calculate cross-talk coefficient and coupled voltage for a stripline


Tools

Maximum Power Transfer Theorem

Maximum Power Transfer Theorem

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


Textbook

AC Waveforms

AC Waveforms

When an alternator produces AC voltage, the voltage switches polarity…


Textbook

Intro Lab - Electromagnetic Induction

Intro Lab - Electromagnetic Induction

In this hands-on electronics experiment, you will learn about electromagnetic induction using an electromagnet and a permanent magnet.


Textbook

Ohm’s Law

Ohm’s Law

For a given amount of water pressure, which will flow a greater rate…


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Multimeters

Multimeters

Seeing as how a common meter movement can be made to function as a…


Textbook

Op-Amp Voltage and Gain Calculator

Op-Amp Voltage and Gain Calculator

A calculator for computing the gain and output voltage of an operational amplifier


Tools

Factors Affecting Capacitance

Factors Affecting Capacitance

There are three basic factors of capacitor construction determining…


Textbook

Standing Waves and Resonance

Standing Waves and Resonance

Whenever there is a mismatch of impedance between transmission line…


Textbook

Unit Conversion Calculator

Unit Conversion Calculator

Convert to and from different units of length, weight, power, temperature and torque


Tools

555 Lab - Red LED Flasher

555 Lab - Red LED Flasher

In this hands-on electronics experiment, you will build a red LED flasher and learn a useful application of the versatile 555 timer IC.


Textbook

Polar Form and Rectangular Form Notation for Complex Numbers

Polar Form and Rectangular Form Notation for Complex Numbers

In order to work with complex numbers without drawing vectors, we…


Textbook

Performance-Based Assessments for Basic Electricity Competencies

Performance-Based Assessments for Basic Electricity Competencies

(Template)


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Logic Signal Voltage Levels

Logic Signal Voltage Levels

Input Voltages for Logic Gates Logic gate circuits are designed to…


Textbook

Design Project: DC Motor

Design Project: DC Motor

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


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Insulated Gate Field-Effect Transistors

Insulated Gate Field-Effect Transistors

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


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Band Theory of Solids

Band Theory of Solids

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


Textbook

Performance-Based Assessments for Network Analysis Competencies

Performance-Based Assessments for Network Analysis Competencies


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Rectifier Circuits

Rectifier Circuits

What is Rectification? Now we come to the most popular application of…


Textbook

DC Lab - 4-wire Resistance Measurement

DC Lab - 4-wire Resistance Measurement

In this hands-on electronics experiment, you will perform a 4-wire Kelvin resistance measurement and learn how to accurately measure resistance.


Textbook

Capacitors

Capacitors

Identify some of the different types of capacitors, and their…


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Semiconductor Manufacturing Techniques

Semiconductor Manufacturing Techniques

The manufacture of only silicon based semiconductors is described…


Textbook

What is the Relationship Between Conductance and Resistance?

What is the Relationship Between Conductance and Resistance?

The concept and measurement units of resistance are most often used…


Textbook

Q Factor and Bandwidth of a Resonant Circuit

Q Factor and Bandwidth of a Resonant Circuit

The Q, or quality, factor of a resonant circuit is a measure of the…


Textbook

555 Lab - Monostable Multivibrator (One-shot)

555 Lab - Monostable Multivibrator (One-shot)

In this hands-on electronics experiment, you will build a monostable multivibrator using a 555 timer IC and learn about RC time constant charging and how a one-shot timer operates.


Textbook

Introduction to Digital Communication

Introduction to Digital Communication

In the design of large and complex digital systems, it is often…


Textbook

Electron Activity in Chemical Reactions

Electron Activity in Chemical Reactions

So far in our discussions on electricity and electric circuits, we…


Textbook

Bipolar Junction Transistors

Bipolar Junction Transistors

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


Textbook

Passive Integrator and Differentiator Circuits

Passive Integrator and Differentiator Circuits

∫f(x) dx Calculus alert! Calculus is a branch of mathematics that…


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Mixed-Frequency Signals

Mixed-Frequency Signals

What is a harmonic frequency? If an oscillator circuit outputs a…


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Demultiplexers

Demultiplexers

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


Textbook

Instrumentation Amplifier Gain Calculator

Instrumentation Amplifier Gain Calculator

The instrumentation amplifier calculator will assist in the design and analysis of a conventional instrumentation amplifier circuit by calculating the required resistor values and gain.


Tools

Intermediate Electromagnetism and Electromagnetic Induction

Intermediate Electromagnetism and Electromagnetic Induction

As an electric current is passed through a coil of wire, it creates a…


Worksheets - Automotive