Aside from the issues of the physical network (signal types and…
Pulse Width Modulation (PWM) uses digital signals to control power…
In very simple, qualitative terms, rate the impedance of capacitors…
What is a harmonic frequency? If an oscillator circuit outputs a…
Don’t just sit there! Build something!! Learning to analyze digital…
What does the acronym RF stand form, in reference to radio-related…
One of the more fascinating applications of electricity is in the…
Just as devices have been made to measure certain physical quantities…
Impedance Matching Because transformers can step voltage and current…
Varicap or varactor diodes A variable capacitance diode is known as a…
What shape of voltage waveform would you expect to measure (using an…
A modern method of electrical power control involves inserting a…
Whenever there is a mismatch of impedance between transmission line…
With BogusBus, our signals were very simple and straightforward: each…
This is a schematic for a simple VCO: The oscillator is of the RC…
A waveguide is a special form of transmission line consisting of a…
Normally, the rotor windings of a wound rotor induction motor are…
The wires between the tank and the monitoring location is called…
This calculator computes the power received by an antenna using Friis formula
(a) Crystal radio. (b) Modulated RF at antenna. (c) Rectified RF at…
This tool is designed to convert power ratios to decibel
In the design of large and complex digital systems, it is often…
How to Create Band-pass Filter There are applications where a…
A tool designed to calculate the noise figure of cascaded amplifiers
Don’t just sit there! Build something!! Learning to analyze digital…
What is a harmonic frequency? If an oscillator circuit outputs a…
A modern alternative to sending (binary) digital information via…
This is a schematic for a simple VCO: The oscillator is of the RC…
What is Conductance? In the study of DC circuits, the student of…
A tool designed to calculate the guided wavelength inside a microstrip.
This calculator computes the resonant frequency of a parallel inductor and capacitor "tank" circuit.
The Skin Depth of Copper in Electrical Engineering As previously…
Standing waves at the resonant frequency points of an open- or…
When an electric current is passed through a coil of wire, what…
Centuries ago, it was discovered that certain types of mineral rock…
What shape of voltage waveform would you expect to measure (using an…
Define what noise means, in the electrical sense of the word. How does…
Don’t just sit there! Build something!! Learning to mathematically…
Suppose you were to take a 3 kW electric heater rated for 240 VAC and…
The Parallel Wires of Infinite Length Suppose, though, that we had a…
The SPICE circuit simulation computer program uses scientific notation…
Define the following terms: energy, work, and power.
A helpful tool for calculating the impedance of a coaxial cable.
Also known as the stairstep-ramp, or simply counter A/D converter,…
When calculating the power dissipation of resistive components, we can…
Learn about junction field effect transistors (JFETs), their equations, and how to model and simulate JFETs in LTspice.
Associative Property In addition and multiplication, terms may be…
Explain how an ohmmeter is able to measure the resistance of a…
This calculator computes the noise figure and noise temperature in a system
The earliest forms of digital data storage involving moving parts was…
What is a Synchronous Counter? A synchronous counter, in contrast to…
In simple AC power systems, one of the two conductors is typically…
This is a schematic for a simple VCO: The oscillator is of the RC…
Arithmetic Sequences An arithmetic sequence is a series of numbers…
Using the same value components in our series example circuit, we will…
In this hands-on AC electronics experiment, you will sense AC electric fields using the sensitive voltage detector and learn about capacitive coupling, EMI, and shielding techniques.
When we store information in some kind of circuit or device, we not…
Inductive Reactance Capacitive Reactance …