All About Circuits

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Re-drawing Complex Schematics

Re-drawing Complex Schematics

Typically, complex circuits are not arranged in nice, neat, clean…


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Microstrip Trace Width Calculator

Microstrip Trace Width Calculator

This tool is designed to compute for the trace width of a microstrip


Tools

Encoders and Decoders

Encoders and Decoders

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


Worksheets - PCBs

Questions relating to project management

Questions relating to project management

NAME:…


Worksheets - PCBs

Boolean Algebra

Boolean Algebra

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


Worksheets - PCBs

Embedded Microstrip Impedance Calculator

Embedded Microstrip Impedance Calculator

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


Tools

Trace Resistance Calculator

Trace Resistance Calculator

This calculator determines the resistance of a microstrip trace


Tools

Basic Oscilloscope Operation

Basic Oscilloscope Operation

An oscilloscope is a very useful piece of electronic test equipment.…


Worksheets - PCBs

DIY EE Lab - Setting Up a Home Electronics Lab

DIY EE Lab - Setting Up a Home Electronics Lab

To build the DIY electronics projects described in this textbook, you will need a small work area, a few tools, and some basic electronics supplies. This page describes the setup of a low-cost home electronics laboratory.


Textbook

Low-pass Filters

Low-pass Filters

By definition, a low-pass filter is a circuit offering easy passage to…


Textbook

Microstrip Crosstalk Calculator

Microstrip Crosstalk Calculator

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


Tools

Bipolar Junction Transistor (BJT) theory

Bipolar Junction Transistor (BJT) theory

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


Worksheets - PCBs

Series-Parallel DC Circuits

Series-Parallel DC Circuits

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


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Meter Check of a Diode

Meter Check of a Diode

The Functionality of Diode Polarity Being able to determine the…


Textbook

Practical Considerations - Capacitors

Practical Considerations - Capacitors

Capacitors, like all electrical components, have limitations that must…


Textbook

Elementary Circuits

Elementary Circuits

In the simplest terms you can think of, define what an electrical…


Worksheets - PCBs

Edge Coupled Trace Inductance Calculator

Edge Coupled Trace Inductance Calculator

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


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Inductance

Inductance

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


Worksheets - PCBs

Voltage Multipliers (Doublers, Triplers, Quadruplers, and More)

Voltage Multipliers (Doublers, Triplers, Quadruplers, and More)

A voltage multiplier is a specialized rectifier circuit producing…


Textbook

Voltage Divider Circuits

Voltage Divider Circuits

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


Textbook

Twisted-Pair Impedance Calculator

Twisted-Pair Impedance Calculator

A tool designed to calculate the characteristic impedance of a twisted-pair cable


Tools

Si Lab - A Simple BJT Current Mirror Circuit

Si Lab - A Simple BJT Current Mirror Circuit

In this hands-on semiconductor electronics experiment, build a simple current mirror using matched bipolar junction transistors (BJTs) and learn about current mirror circuit limitations, the temperature dependence of BJTs, and thermal runaway.


Textbook

Switch Contact Design

Switch Contact Design

A switch can be constructed with any mechanism bringing two conductors…


Textbook

Introduction to Diodes And Rectifiers

Introduction to Diodes And Rectifiers

All About Diodes A diode is an electrical device allowing current to…


Textbook

Design Project: Voltmeter

Design Project: Voltmeter

The most important component of your voltmeter will be the…


Worksheets - PCBs

Introduction to Digital-Analog Conversion

Introduction to Digital-Analog Conversion

Connecting digital circuitry to sensor devices is simple if the sensor…


Textbook

Simple AC Circuit Calculations

Simple AC Circuit Calculations

Over the course of the next few chapters, you will learn that AC…


Textbook

What Are Zener Diodes?

What Are Zener Diodes?

What Is a Zener Diode? A Zener diode is a special type of rectifying…


Textbook

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

Temperature Coefficients of Resistance Table

Temperature Coefficients of Resistance Table

Temperature coefficient (α) per degree C: Material Element/Alloy…


Textbook

Digital Logic Functions

Digital Logic Functions

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


Textbook

The Quadratic Formula

The Quadratic Formula

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


Textbook

Heat Sink Calculator

Heat Sink Calculator

This calculator helps determine the maximum temperature a device can withstand


Tools

Introduction to AC Motors

Introduction to AC Motors

After the introduction of the DC electrical distribution system by…


Textbook

Don’t Care Cells in the Karnaugh Map

Don’t Care Cells in the Karnaugh Map

Up to this point we have considered logic reduction problems where…


Textbook

Semiconductor Manufacturing Techniques

Semiconductor Manufacturing Techniques

The manufacture of only silicon based semiconductors is described…


Textbook

DeMorgan’s Theorems

DeMorgan’s Theorems

A mathematician named DeMorgan developed a pair of important rules…


Textbook

Special Diodes

Special Diodes

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


Worksheets - PCBs

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

Enhancement-type IGFETs

Enhancement-type IGFETs


Textbook

Modern Nonmechanical Memory

Modern Nonmechanical Memory

Now we can proceed to studying specific types of digital storage…


Textbook

Potentiometers

Potentiometers

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


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Performance-Based Assessments for Network Analysis Competencies

Performance-Based Assessments for Network Analysis Competencies


Worksheets - PCBs

True, Reactive, and Apparent Power

True, Reactive, and Apparent Power

Reactive Power We know that reactive loads such as inductors and…


Textbook

N-Way Power Divider Calculator

N-Way Power Divider Calculator

This calculator determines the total path loss provided by an RF n-way power splitter.


Tools

Static Electricity

Static Electricity

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


Textbook

Voltage/Current Converter OpAmp Circuits

Voltage/Current Converter OpAmp Circuits

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


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Optical Data Communication

Optical Data Communication

A modern alternative to sending (binary) digital information via…


Textbook

Capacitive Reactance

Capacitive Reactance

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


Worksheets - PCBs

555 Lab - Introduction to the 555 Timer IC

555 Lab - Introduction to the 555 Timer IC

In this collection of hands-on electronics experiments, build and test mixed-signal analog and digital circuits using the versatile 555 timer IC. These projects will teach you about RC time constants, duty cycle, transistor current drive, LEDs, voltage doublers, and more.


Textbook

Digital Lab - S-R Latch With Enable Input using NAND Gates

Digital Lab - S-R Latch With Enable Input using NAND Gates

In this hands-on electronics experiment, you will build an S-R latch with an enabled input using four NAND gates and learn more about digital circuit functionality.


Textbook

Complex Circuits

Complex Circuits

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


Textbook

Oscillator Circuits

Oscillator Circuits

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


Worksheets - PCBs

Microstrip Max Current Calculator

Microstrip Max Current Calculator

A calculator for solving the maximum current a microstrip can handle.


Tools

Multi-Stage Transistor Amplifiers

Multi-Stage Transistor Amplifiers

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


Worksheets - PCBs

Asynchronous Flip-Flop Inputs

Asynchronous Flip-Flop Inputs

The normal data inputs to a flip flop (D, S and R, or J and K) are…


Textbook

Stepper Motors

Stepper Motors

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


Worksheets - PCBs

Early Tube History

Early Tube History

Thomas Edison, that prolific American inventor, is often credited with…


Textbook