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Standing Waves and Resonance

Textbook

Whenever there is a mismatch of impedance between transmission line…

Resonant Filters

Textbook

So far, the filter designs we’ve concentrated on have employed…

“Long’’ and “Short’’ Transmission Lines

Textbook

In DC and low-frequency AC circuits, the characteristic impedance of…

Noise Figure Calculator

Tools

A tool designed to calculate the noise figure of cascaded amplifiers

Characteristic Impedance

Textbook

The Parallel Wires of Infinite Length Suppose, though, that we had a…

Friis Transmission Calculator

Tools

This calculator computes the power received by an antenna using Friis formula

Microstrip Inductance Calculator

Tools

This calculator computes the inductance of a microstrip etched on a PCB.

Radio Circuits

Textbook

(a) Crystal radio. (b) Modulated RF at antenna. (c) Rectified RF at…

Digital Communication

Worksheets - Modules

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

Decibels

Textbook

The Bel is Used to Represent Gain In its simplest form, an…

Electric Shock

Worksheets - Modules

It is sometimes said regarding electrical safety that, Ït’s not the…

EIRP Calculator

Tools

A helpful tool for computing the Effective Isotropic Radiated Power (EIRP) of an antenna

RF Power Ratio Conversion Calculator

Tools

This tool is designed to convert power ratios to decibel

Design Project: Radio Transmitter

Worksheets - Modules

Research the FCC (Federal Communication Commission) guidelines on…

Selsyn (Synchro) Motors

Textbook

Normally, the rotor windings of a wound rotor induction motor are…

Impedance Transformation

Textbook

Standing waves at the resonant frequency points of an open- or…

Permanent Magnets

Textbook

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

Square Wave Signals

Textbook

It has been found that any repeating, non-sinusoidal waveform can be…

Parallel Wire Inductance Calculator

Tools

This tool is designed to calculate the inductance of two parallel wires

Bandpass Filter Calculator

Tools

This calculates values of the inductance, capacitance of an inductor and capacitor used in a Butterworth LC bandpass filter.

Attenuators

Textbook

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

Voltmeter Impact on Measured Circuit

Textbook

Every meter impacts the circuit it is measuring to some extent, just…

Inductance, Reactance, and Admittance Calculator

Tools

This calculator gives the reactance and admittance of an inductor or the inductance given the reactance of an inductor

Servo Motor Systems

Worksheets - Modules

Explain the operation of this “H-bridge” motor control circuit: At…

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

Textbook

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.

Step-up, Step-down, and Isolation Transformers

Worksheets - Modules

Calculate the voltage output by the secondary winding of a transformer…

DC Lab - An Analog Computer For Averaging

Textbook

In this hands-on electronics experiment, you will build a simple circuit that computes the average of voltages and learn about analog computers and their application.

Circuit Components

Textbook

Remember that this tutorial is not exhaustive by any means, and that…

Inverting Op-Amp Resistor Calculator

Tools

This calculator determines the bias and feedback of resistors for an inverting op-amp.

Si Lab - JFET Switching Circuit and Static Electricity Sensor

Textbook

In this hands-on semiconductor electronics experiment, use a junction field-effect transistor (JFET) to build a sensitive switching circuit and learn about JFET current gain.

Practical considerations - Digital Communication

Textbook

A principal consideration for industrial control networks, where the…

Insulator Breakdown Voltage

Textbook

The atoms in insulating materials have very tightly-bound electrons,…

Time Constant Equations

Textbook

Value of time constant in series RC and RL circuits   Time…

Meter Check of a Diode

Textbook

The Functionality of Diode Polarity Being able to determine the…

Strain Gauges

Textbook

If a strip of conductive metal is stretched, it will become skinnier…

Digital Lab - 10-bit Flashing LED Sequencer

Textbook

In this hands-on electronics experiment, build and test an automated circuit that sequentially flashes 10 LED, and learn about counters, frequency dividers, and switch debouncing.

Vol VI. Credits

Textbook

The following is a partial list of contributors to the current online…

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

Textbook

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

Scientific Notation and Metric Prefixes

Worksheets - Modules

Write the following exponential expressions in expanded form: 101 =…

The Command-line Interface

Textbook

If you’ve used DOS or UNIX operating systems before in a…

Attenuators

Textbook

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