Categories

BJT Quirks

Textbook

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

Power Density Calculator

Tools

A tool designed to calculate the power density of an antenna

Phase-Locked Loops

Worksheets - Wireless/RF

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

Coax Inductance Calculator

Tools

A calculator for computing the inductance of a coaxial cable.

High-pass Filters

Textbook

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

Impedance Matching With Transformers

Worksheets - Wireless/RF

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

Amplifier Gain

Textbook

The Voltage Gain Because amplifiers have the ability to increase the…

Simple Parallel (Tank Circuit) Resonance

Textbook

Resonance in a Tank Circuit A condition of resonance will be…

Electrical Signal Types

Textbook

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

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

Textbook

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

Pulse Width Modulation

Textbook

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

Free Space Path Loss Calculator

Tools

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

Microstrip Patch Antenna Calculator

Tools

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

Low-pass Filters

Textbook

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

Absolute dB scales

Textbook

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

Balanced Attenuator Calculator

Tools

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

Other Diode Technologies

Textbook

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

Design Project: Radio Transmitter

Worksheets - Wireless/RF

Research the FCC (Federal Communication Commission) guidelines on…

Other Waveshapes

Textbook

As strange as it may seem, any repeating, non-sinusoidal waveform is…

Mutual Inductance

Worksheets - Wireless/RF

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

Design Project: Logic Probe

Worksheets - Wireless/RF

What factors determine where potentiometers Rpot1 and Rpot2 must be…

Voltage-to-Current Signal Conversion

Textbook

In instrumentation circuitry, DC signals are often used as analog…

Wire Over Plane Inductance Calculator

Tools

This calculator helps you compute the inductance of a wire-over-plane setup.

Contact “Normal” State and Make/Break Sequence

Textbook

Any kind of switch contact can be designed so that the contacts…

The Gated S-R Latch

Textbook

It is sometimes useful in logic circuits to have a multivibrator which…

Time Constant Calculations

Worksheets - Wireless/RF

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

Finite State Machines

Textbook

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

Static Electricity

Worksheets - Wireless/RF

What does it mean for an object to have an electric charge? Give an…

Practical Power Factor Correction

Textbook

When the need arises to correct for poor power factor in an AC power…

Gate Universality

Textbook

NAND and NOR gates possess a special property: they are universal.…

Contributors (16)

Textbook

Contributors to this chapter are listed in chronological order of…

Introduction to SPICE

Textbook

“With Electronics Workbench, you can create circuit schematics…

DC Branch Current Analysis

Worksheets - Wireless/RF

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

Selsyn (Synchro) Motors

Textbook

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

Vectors and AC Waveforms

Textbook

OK, so how exactly can we represent AC quantities of voltage or…

Boolean Algebra

Worksheets - Wireless/RF

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

Inductors

Textbook

An inductor is a passive two-terminal electrical component that…

Impedance Transformation

Textbook

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

Active Filters

Worksheets - Wireless/RF

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

Universal Shift Registers: Parallel-in, Parallel-out

Textbook

The purpose of the parallel-in/ parallel-out shift register is to take…

Tesla Polyphase Induction Motors

Textbook

Most AC motors are induction motors. Induction motors are favored due…

Free Space Path Loss Calculator

Tools

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

Input and Output Coupling

Textbook

To overcome the challenge of creating necessary DC bias voltage for an…

Arithmetic Properties

Textbook

Associative Property In addition and multiplication, terms may be…

The Tetrode

Textbook

As the name suggests, the tetrode tube contains four elements: cathode…

Bipolar Junction Transistors as Switches

Worksheets - Wireless/RF

Solid-state switching circuits usually keep their constituent…

The Common-collector Amplifier

Textbook

Our next transistor configuration to study is a bit simpler for gain…

More on AC “polarity”

Textbook

Complex numbers are useful for AC circuit analysis because they…

T-Pad Attenuator Calculator

Tools

This calculator helps you determine the values of the resistors R1 and R2 to be used for a T-pad attenuator.

Potentiometers

Worksheets - Wireless/RF

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

Characteristic Impedance

Textbook

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

pH Measurement

Textbook

A very important measurement in many liquid chemical processes…

ElectroStatic Discharge

Textbook

At the start of this book, we discussed static electricity and how it…

Microstrip Crosstalk Calculator

Tools

This tool is designed to calculate cross-talk coefficient and coupled voltage for a microstrip.

Contributors (9)

Textbook

Contributors to this chapter are listed in chronological order of…

Resistors

Worksheets - Wireless/RF

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

DC Lab - Capacitor Charging and Discharging

Textbook

In this hands-on electronics experiment, you will build capacitor charging and discharging circuits and learn how to calculate the RC time constant of resistor-capacitor circuits.

The “Operational” Amplifier

Textbook

Long before the advent of digital electronic technology, computers…

An Analogy for Divided Feedback

Textbook

A helpful analogy for understanding divided feedback amplifier…

Polyphase Power Systems

Worksheets - Wireless/RF

Explain the difference between a balanced polyphase system and an…