All About Circuits

Latest Energy Harvesting Education

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Sources of Electricity

Sources of Electricity

What is the difference between DC and AC electricity? Identify some…


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How to Calculate Power in a Series and Parallel Circuit

How to Calculate Power in a Series and Parallel Circuit

When calculating the power dissipation of resistive components, we can…


Textbook

Electrical Energy Calculator

Electrical Energy Calculator

This calculator will determine the instantaneous energy, sustained energy, and power consumed by an electrical system given two of the three electrical parameters (voltage, current, or resistance) and the time.


Tools

Special-purpose Diodes

Special-purpose Diodes

Schottky diodes Schottky diodes are constructed of a metal-to-N…


Textbook

Regulated Power Sources

Regulated Power Sources

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


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Design Project: Power Inverter

Design Project: Power Inverter

A common topology for DC-AC power converter circuits uses a pair of…


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Voltage, Current, and Resistance

Voltage, Current, and Resistance

Voltage is commonly defined as “electrical pressure.” The unit of…


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Power Sources

Power Sources

There are many different types of power sources, and here some of the…


Textbook

AC Lab - Using a Transformer to Build a 12 VAC Power Supply

AC Lab - Using a Transformer to Build a 12 VAC Power Supply

In this hands-on AC electronics experiment, build a 12 V alternating current (AC) power supply using a step-down transformer and learn about transformer operation and the purpose of tapped windings.


Textbook

AC Power

AC Power

If a sinusoidal voltage is applied to an impedance with a phase angle…


Worksheets - Energy Harvesting

Energy, Work, and Power

Energy, Work, and Power

Define the following terms: energy, work, and power.


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Speed Distance Time Calculator

Speed Distance Time Calculator

This calculator will solve for either distance, time, or speed given two of the three parameters.


Tools

Sources of Electricity

Sources of Electricity

What is the difference between DC and AC electricity? Identify some…


Worksheets - Energy Harvesting

Lenz’s Law and Faraday’s Law Calculator

Lenz’s Law and Faraday’s Law Calculator

This calculator uses Faraday's and Lenz's laws to calculate the magnitude and polarity of the induced electromotive force (EMF) caused by a change in magnetic flux through a closed-loop coil.


Tools

AC Lab - Sensing AC Magnetic Fields

AC Lab - Sensing AC Magnetic Fields

In this hands-on AC electronics experiment, you will sense AC magnetic fields using a simple wire coil and learn about AC signal coupling, orientation effects, and the impact of shielding using different materials.


Textbook

DC Lab - Thermoelectricity

DC Lab - Thermoelectricity

In this hands-on electronics experiment, you will build a thermocouple to measure temperature changes and learn about the Seebeck effect.


Textbook

Superconducting Devices

Superconducting Devices

Superconducting devices, though not widely used, have some unique…


Textbook

The Common-source Amplifier (IGFET)

The Common-source Amplifier (IGFET)


Textbook

Kirchhoff’s Voltage Law (KVL)

Kirchhoff’s Voltage Law (KVL)

What is Kirchhoff’s Voltage Law (KVL)? The principle known as…


Textbook

Digital Lab - 3-bit Binary Counter

Digital Lab - 3-bit Binary Counter

In this hands-on electronics experiment, build a 3-bit down counter using J-K flip-flops and learn about asynchronous counter functionality.


Textbook

Wire Over Plane Inductance Calculator

Wire Over Plane Inductance Calculator

This calculator helps you compute the inductance of a wire-over-plane setup.


Tools

Tubes versus Semiconductors

Tubes versus Semiconductors

Devoting a whole chapter in a modern electronics text to the design…


Textbook

From Electric to Electronic

From Electric to Electronic

Introduction This third volume of the book series Lessons In Electric…


Textbook

Wire Types and Sizes

Wire Types and Sizes

Most electrical wire is covered in a rubber or plastic coating called…


Worksheets - Energy Harvesting

Tube Parameters

Tube Parameters

For bipolar junction transistors, the fundamental measure of…


Textbook

DC Lab - Current Divider

DC Lab - Current Divider

In this hands-on electronics experiment, you will build resistive current dividers and observe how Ohm's law and Kirchhoff's current law function in real circuits using a voltmeter and an ammeter.


Textbook

Inductance

Inductance

∫f(x) dx Calculus alert! One of the fundamental principles of…


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Antenna Downtilt and Coverage Calculator

Antenna Downtilt and Coverage Calculator

This calculator will determine the correct antenna downtilt angle given the heights of the antennas and distance between them.


Tools

Series and Parallel Component Equivalent Values

Series and Parallel Component Equivalent Values

Series and Parallel Resistances     Series and Parallel…


Textbook

Coax Inductance Calculator

Coax Inductance Calculator

A calculator for computing the inductance of a coaxial cable.


Tools

Basic Algebra and Graphing for Electric Circuits

Basic Algebra and Graphing for Electric Circuits

Many different equations used in the analysis of electric circuits may…


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Solving Simultaneous Equations: The Substitution Method and the Addition Method

Solving Simultaneous Equations: The Substitution Method and the Addition Method

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


Textbook

Venn Diagrams and Sets

Venn Diagrams and Sets

Mathematicians use Venn diagrams to show the logical relationships of…


Textbook

Permeability and Saturation

Permeability and Saturation

The nonlinearity of material permeability may be graphed for better…


Textbook