Categories

Fundamentals of Radio Communication

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What does the acronym RF stand form, in reference to radio-related…

Phase-Locked Loops

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This is a schematic for a simple VCO: The oscillator is of the RC…

Other Diode Technologies

Textbook

Varicap or varactor diodes A variable capacitance diode is known as a…

Radio Circuits

Textbook

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

What Is the Skin Effect?

Textbook

The Skin Depth of Copper in Electrical Engineering As previously…

BJT Quirks

Textbook

An ideal transistor would show 0% distortion in amplifying a signal.…

Mixed-Frequency Signals

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

Signal Modulation

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A modern method of electrical power control involves inserting a…

Maximum Power Transfer Theorem

Textbook

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

Design Project: Radio Transmitter

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Research the FCC (Federal Communication Commission) guidelines on…

Special Transformers and Applications

Textbook

Impedance Matching Because transformers can step voltage and current…

Principles of Radio

Textbook

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

Passive Filter Circuits

Worksheets - Software-Defined Radio

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

Electrical Signal Types

Textbook

With BogusBus, our signals were very simple and straightforward: each…

What Is the Skin Effect?

Textbook

The Skin Depth of Copper in Electrical Engineering As previously…

Microstrip Max Current Calculator

Tools

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

Absolute dB scales

Textbook

Decibel as Absolute Unit of Power It is also possible to use the…

Waveguides

Textbook

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

Balanced Attenuator Calculator

Tools

This balanced attenuator calculator helps you determine the resistor (R1) values for a balanced attenuator.

Mutual Inductance

Worksheets - Software-Defined Radio

When an electric current is passed through a coil of wire, what…

Optical Data Communication

Textbook

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

Design Project: Radio Transmitter

Worksheets - Software-Defined Radio

Research the FCC (Federal Communication Commission) guidelines on…

Electric Fields and Capacitance

Textbook

Introduction Whenever an electric voltage exists between two separated…

Pulse Width Modulation

Textbook

Pulse Width Modulation (PWM) uses digital signals to control power…

Special Transformers and Applications

Textbook

Impedance Matching Because transformers can step voltage and current…

Capacitance, Reactance, and Admittance Calculator

Tools

A calculator for solving the capacitance, reactance, and admittance of a capacitor.

Three-phase Transformer Circuits

Textbook

Since three-phase is used so often for power distribution systems, it…

Skin Depth Calculator

Tools

A tool designed to calculate skin depth based on the conductive material being used and the frequency of the signal.

Characteristic Impedance

Textbook

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

Data Flow

Textbook

Buses and networks are designed to allow communication to occur…

Finite State Machines

Textbook

Up to now, every circuit that was presented was a combinatorial…

Resonant Filters

Textbook

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

Practical considerations - Digital Communication

Textbook

A principal consideration for industrial control networks, where the…

Energy, Work, and Power

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

Sensitive Voltage Detector

Textbook

PARTS AND MATERIALS High-quality “closed-cup” audio…

Solid-state Relays

Textbook

Limitations of Electromechanical Relays As versatile as…

Clipper and Clamper Circuits

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

Safety Grounding

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

Band-stop Filters

Textbook

How to Create a Band-stop Filter? Also called band-elimination,…

Non-Inverting Op-Amp Resistor Calculator

Tools

This calculator determines the bias and feedback of resistors for a non-inverting Op-Amp

Logarithms

Textbook

Definition of a Logarithm     “log” denotes a…

Series-Parallel DC Circuits

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

Introduction to Conductance and Conductors

Textbook

By now you should be well aware of the correlation between electrical…

High-pass Filters

Textbook

A high-pass filter’s task is just the opposite of a low-pass…

Power Conversion Circuits

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

Junction Field-effect Transistors

Textbook

The field effect transistor was proposed by Julius Lilienfeld in US…

Multi-Stage Amplifier

Textbook

PARTS AND MATERIALS Three NPN transistors—model 2N2222 or 2N3403…

Voltage Divider

Textbook

PARTS AND MATERIALS Calculator (or pencil and paper for doing…

Electrical Connections

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What, exactly, is necessary to establish electrical continuity between…

Vol I. Credits

Textbook

All entries arranged in alphabetical order of surname. Major…

Introduction to Solid-state Device Theory

Textbook

This chapter will cover the physics behind the operation of…

Microstrip Max Current Calculator

Tools

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

Class A BJT Amplifiers

Worksheets - Software-Defined Radio

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