Categories

Maximum Power Transfer Theorem

Textbook

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

Fundamentals of Radio Communication

Worksheets - Software-Defined Radio

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

What Is the Skin Effect?

Textbook

The Skin Depth of Copper in Electrical Engineering As previously…

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…

Design Project: Radio Transmitter

Worksheets - Software-Defined Radio

Research the FCC (Federal Communication Commission) guidelines on…

Phase-Locked Loops

Worksheets - Software-Defined Radio

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

Mixed-Frequency Signals

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

BJT Quirks

Textbook

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

Passive Filter Circuits

Worksheets - Software-Defined Radio

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

Signal Modulation

Worksheets - Software-Defined Radio

A modern method of electrical power control involves inserting a…

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…

RF Power Ratio Conversion Calculator

Tools

This tool is designed to convert power ratios to decibel

Pi Attenuator Calculator

Tools

This calculator helps you determine the values of the resistors R1 and R2 to be used for a Pi Attenuator.

Analog and Digital Signals

Textbook

Instrumentation is a field of study and work centering on measurement…

Coax Inductance Calculator

Tools

A calculator for computing the inductance of a coaxial cable.

Electromagnetic Induction

Textbook

While Oersted’s surprising discovery of electromagnetism paved…

Absolute dB scales

Textbook

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

Noise Figure Calculator

Tools

A tool designed to calculate the noise figure of cascaded amplifiers

Capacitance, Reactance, and Admittance Calculator

Tools

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

Wavelength (TEM) Calculator

Tools

This calculator determines the wavelength of a signal given the frequency and dielectric constant.

Skin Depth Calculator

Tools

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

Impedance Matching With Transformers

Worksheets - Software-Defined Radio

Suppose you were to take a 3 kW electric heater rated for 240 VAC and…

AC Instrumentation Transducers

Textbook

Just as devices have been made to measure certain physical quantities…

Parallel Wire Inductance Calculator

Tools

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

Op-Amp Practical Considerations

Textbook

Real operational amplifiers have some imperfections compared to an…

“Long’’ and “Short’’ Transmission Lines

Textbook

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

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

Band-stop Filters

Textbook

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

Microstrip Inductance Calculator

Tools

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

Electromagnetism

Textbook

The discovery of the relationship between magnetism and electricity…

Free Space Path Loss Calculator

Tools

This calculator calculates the free space loss, given the distance, frequency, and gain, between two antennas.

Contributors (8)

Textbook

Contributors to this chapter are listed in chronological order of…

Class A BJT Amplifiers

Worksheets - Software-Defined Radio

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

The Silicon-Controlled Rectifier (SCR)

Textbook

Shockley Diodes and Silicon Controlled Rectifiers (SCRs) Shockley…

Control Circuits

Textbook

The Antiderivative (Indefinite Integral)

Textbook

  Notice something important here: taking the derivative of f(x)…

AC Voltmeters and Ammeters

Textbook

AC electromechanical meter movements come in two basic arrangements:…

Introduction to Network Theorems

Textbook

Anyone who’s studied geometry should be familiar with the…

Active-mode Operation (BJT)

Textbook

When a transistor is in the fully-off state (like an open switch), it…

Single-phase Power Systems

Textbook

Single phase power system schematic diagram shows little about the…

Active-mode Operation (IGFET)

Textbook

Polyphase Power Systems

Worksheets - Software-Defined Radio

Explain the difference between a balanced polyphase system and an…

Microstrip Trace Width Calculator

Tools

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

Common-Emitter Amplifier

Textbook

PARTS AND MATERIALS One NPN transistor—model 2N2222 or 2N3403…

Logic Simplification With Karnaugh Maps

Textbook

The logic simplification examples that we have done so far could have…

Differential Amplifier

Textbook

PARTS AND MATERIALS Two 6-volt batteries Two NPN…

Transistors, Bipolar

Textbook

There are not too many circuit symbols for bipolar transistors. There…

Bridge Circuits

Textbook

No text on electrical metering could be called complete without a…

Resistor Color Code Calculator and Chart (4-band, 5-band or 6-band)

Tools

A handy tool for reading resistor color code values

Superposition Theorem

Textbook

Superposition theorem is one of those strokes of genius that takes a…

Coax Inductance Calculator

Tools

A calculator for computing the inductance of a coaxial cable.