All About Circuits

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A 50-Ohm Cable?

A 50-Ohm Cable?

Early in my explorations of electricity, I came across a length of…


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Microcontroller Principles

Microcontroller Principles

Read the following quotation, and then research the term…


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Practical considerations - Digital Communication

Practical considerations - Digital Communication

A principal consideration for industrial control networks, where the…


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Optical Data Communication

Optical Data Communication

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


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Analog-to-Digital Conversion

Analog-to-Digital Conversion

The circuit shown here is a four-bit analog-to-digital converter…


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Digital Display Circuits

Digital Display Circuits

What is the purpose of a seven-segment decoder circuit? What is a…


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Networks and Busses

Networks and Busses

The wires between the tank and the monitoring location is  called…


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Performance-Based Assessments for Semiconductor Circuit Competencies

Performance-Based Assessments for Semiconductor Circuit Competencies


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Network Protocols

Network Protocols

Aside from the issues of the physical network (signal types and…


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Digital Communication

Digital Communication

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


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Passive Filter Circuits

Passive Filter Circuits

In very simple, qualitative terms, rate the impedance of capacitors…


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Network Topology

Network Topology

Point-to-Point Connecting two digital devices with a network, would…


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Waveguides

Waveguides

A waveguide is a special form of transmission line consisting of a…


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Networks and Busses

Networks and Busses

The wires between the tank and the monitoring location is  called…


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Data Flow

Data Flow

Buses and networks are designed to allow communication to occur…


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Optical Data Communication

Optical Data Communication

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


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Switched Capacitor Circuitry

Switched Capacitor Circuitry

Write an equation describing the precise mathematical relationship…


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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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Series-Parallel DC Circuits

Series-Parallel DC Circuits

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


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Network Topology

Network Topology

Point-to-Point Connecting two digital devices with a network, would…


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Open-Loop OpAmp Circuits

Open-Loop OpAmp Circuits

Determine what the magnitude and polarity of the voltmeter’s…


Worksheets - Optical Networking

Snell’s Law Calculator

Snell’s Law Calculator

Given three of the four input parameters (refractive indices, angles of incidence, and refraction) this tool calculates the missing variable based on Snell's law.


Tools

Basic AC-DC Power Supplies

Basic AC-DC Power Supplies

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


Worksheets - Optical Networking

A 50-Ohm Cable?

A 50-Ohm Cable?

Early in my explorations of electricity, I came across a length of…


Textbook

Bipolar Junction Transistors in Active Mode

Bipolar Junction Transistors in Active Mode

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


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Node Voltage Method

Node Voltage Method

The node voltage method of DC network analysis solves for unknown…


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Batteries

Batteries

If I wanted to build a battery-powered electric drill, would it be…


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DC Mesh Current Analysis

DC Mesh Current Analysis

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


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Superposition Theorem

Superposition Theorem

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


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Time Constant Calculations

Time Constant Calculations

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


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Vol I. Credits

Vol I. Credits

All entries arranged in alphabetical order of surname. Major…


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Electromechanical Relay Logic

Electromechanical Relay Logic

In ladder logic symbolism, an electromechanical relay coil is shown as…


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DC Branch Current Analysis

DC Branch Current Analysis

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


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Calculating Power Factor

Calculating Power Factor

As was mentioned before, the angle of this “power…


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The Gated S-R Latch

The Gated S-R Latch

It is sometimes useful in logic circuits to have a multivibrator which…


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Mutual Inductors

Mutual Inductors

Mutual inductors are inductors that capitalize the effect of mutual…


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Digital Logic With Feedback

Digital Logic With Feedback

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


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Gas Discharge Tubes

Gas Discharge Tubes

If you’ve ever witnessed a lightning storm, you’ve seen…


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Waveguide Calculator (Circular)

Waveguide Calculator (Circular)

This tool calculates the cutoff frequency of a circular waveguide


Tools

Mesh Current Method (Loop Current Method)

Mesh Current Method (Loop Current Method)

This page provides a step-by-step introduction to using the mesh…


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AC Lab - Frequency Analysis

AC Lab - Frequency Analysis

In this hands-on AC electronics experiment, use the frequency spectrum display from an oscilloscope program to observe waveforms from a musical keyboard and learn about spectral analysis.


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Junction field-effect transistors (JFET)

Junction field-effect transistors (JFET)

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


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AC Bridge Circuits

AC Bridge Circuits

As we saw with DC measurement circuits, the circuit configuration…


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Electron Tubes

Electron Tubes

Cathode:   This is the electrode that is heated and emits the…


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AC Lab - Build a Transformer

AC Lab - Build a Transformer

In this hands-on AC electronics experiment, build a simple transformer and learn some important transformer fundamentals including voltage step-up and step-down.


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Elementary Circuits

Elementary Circuits

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


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Static Electricity

Static Electricity

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


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DC Branch Current Analysis

DC Branch Current Analysis

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


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Design Project: Signal Generator

Design Project: Signal Generator

Explain the principle of operation for the particular integrated…


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Microcontroller Principles

Microcontroller Principles

Read the following quotation, and then research the term…


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Practical Considerations - Batteries

Practical Considerations - Batteries

When connecting batteries together to form larger “banks”…


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Transistors, Insulated-gate Field-effect (IGFET or MOSFET)

Transistors, Insulated-gate Field-effect (IGFET or MOSFET)

We have the symbols for depletion mode and enhancement mode MOSFETs -…


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Multiplexers and Demultiplexers

Multiplexers and Demultiplexers

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


Worksheets - Optical Networking