Categories

What is a Filter?

Textbook

It is sometimes desirable to have circuits capable of selectively…

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

Electrical Signal Types

Textbook

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

Finite State Machines

Textbook

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

Low-pass Filters

Textbook

By definition, a low-pass filter is a circuit offering easy passage to…

Resonant Filters

Textbook

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

Standing Waves and Resonance

Textbook

Whenever there is a mismatch of impedance between transmission line…

Electromagnetism

Textbook

The discovery of the relationship between magnetism and electricity…

Phase-Locked Loops

Worksheets - Wireless/RF

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

Review of R, X, and Z (Resistance, Reactance and Impedance)

Textbook

Before we begin to explore the effects of resistors, inductors, and…

Magnetic Units of Measurement

Textbook

If the burden of two systems of measurement for common quantities…

Radar Maximum Range Calculator

Tools

This tool is designed to calculate the maximum distance (range) that a radar can detect

Finite-length Transmission Lines

Textbook

A transmission line of infinite length is an interesting abstraction,…

Microstrip Patch Antenna Calculator

Tools

This tool calculates the dimensions of the microstrip patch antenna given the desired operating frequency.

Friis Transmission Calculator

Tools

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

Square Wave Signals

Textbook

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

Magnetic Fields and Inductance

Textbook

Whenever electrons flow through a conductor, a magnetic field will…

Waveguide Calculator (Rectangular)

Tools

This tool calculates the cutoff frequency of a rectangular waveguide

Introduction to Mixed-Frequency AC Signals

Textbook

In our study of AC circuits thus far, we’ve explored circuits…

Bandpass Filter Calculator

Tools

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

Sources of Electricity

Worksheets - Wireless/RF

What is the difference between DC and AC electricity? Identify some…

Algebraic Substitution for Electric Circuits

Worksheets - Wireless/RF

There are two basic Ohm’s Law equations: one relating voltage,…

Analog-to-Digital Conversion

Worksheets - Wireless/RF

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

Simple Circuits

Worksheets - Wireless/RF

Shown here is the schematic symbol for a resistor: What is the purpose…

Complex Voltage and Current Calculations

Textbook

There are circumstances when you may need to analyze a DC reactive…

Ammeter Design

Worksheets - Wireless/RF

What would happen to this meter movement, if connected directly to a…

Linear Computational Circuitry

Worksheets - Wireless/RF

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

Design Project: Signal Generator

Worksheets - Wireless/RF

Explain the principle of operation for the particular integrated…

Solving for Unknown Time

Textbook

Sometimes it is necessary to determine the length of time that a…

Rectifier Circuits

Worksheets - Wireless/RF

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

Algebraic Equation Manipulation for Electric Circuits

Worksheets - Wireless/RF

The electrical resistance of a conductor at any temperature may be…

Other Specialized Motors

Textbook

Shaded Pole Induction Motor An easy way to provide starting torque to…

Common Antiderivatives

Textbook

 

Capacitor Transient Response

Textbook

Because capacitors store energy in the form of an electric field, they…

RF Power Ratio Conversion Calculator

Tools

This tool is designed to convert power ratios to decibel

Complex Circuits

Textbook

What do we do if we come across a circuit more complex than the simple…

Electron Activity in Chemical Reactions

Textbook

So far in our discussions on electricity and electric circuits, we…

History of SPICE

Textbook

SPICE is a computer program designed to simulate analog electronic…

Resonance in Series-Parallel Circuits

Textbook

In simple reactive circuits with little or no resistance, the effects…

Factoring Equivalencies

Textbook

Factoring Identities :   a2 - b2 = (a + b) (a - b) a2 + 2ab + b2…

Solving Simultaneous Equations: The Substitution Method and the Addition Method

Textbook

What are Simultaneous Equations and Systems of Equations? The terms…

Mesh Current Method (Loop Current Method)

Textbook

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

Inductor Commutating Circuits

Textbook

A popular use of diodes is for the mitigation of inductive…

Power Measurement

Textbook

Power measurement in AC circuits can be quite a bit more complex than…

Transistors, Bipolar

Textbook

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

Circuit Wiring

Textbook

So far, we’ve been analyzing single-battery, single-resistor…

Contributors (10)

Textbook

Contributors to this chapter are listed in chronological order of…

Data - Resistance & Superconductor

Textbook

Tables of specific resistance and temperature coefficient of…

Voltage and Current Calculations

Textbook

There’s a sure way to calculate any of the values in a reactive…

Thyristors

Textbook

Thyristors are a broad classification of bipolar-conducting…

Common Antiderivatives

Textbook

 

Si Lab - A Simple BJT Current Mirror Circuit

Textbook

In this hands-on semiconductor electronics experiment, build a simple current mirror using matched bipolar junction transistors (BJTs) and learn about current mirror circuit limitations, the temperature dependence of BJTs, and thermal runaway.

Beam Power Tubes

Textbook

In the beam power tube, the basic four-element structure of the…

Boolean Algebraic Properties

Textbook

Another type of mathematical identity, called a “property”…

Introduction to SPICE

Textbook

“With Electronics Workbench, you can create circuit schematics…

The Thyristor

Textbook

A thyristor is a device that has a number of unusual characteristics.…

Peak, Average, and RMS Measurements

Worksheets - Wireless/RF

How is it possible to assign a fixed value of voltage or current (such…

Ohm’s Law (again!)

Textbook

A common phrase heard in reference to electrical safety goes something…

Wire Loop Inductance Calculator

Tools

This calculator helps you compute the inductance of a wire loop.

The TRIAC

Textbook

SCRs are unidirectional (one-way) current devices, making them useful…