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Band Theory of Solids

Textbook

Quantum physics describes the states of electrons in an atom according…

Magnetic Fields and Inductance

Textbook

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

Electrical Noise and Interference

Worksheets - Wireless/RF

Define what noise means, in the electrical sense of the word. How does…

Introduction to Digital Communication

Textbook

In the design of large and complex digital systems, it is often…

Band-stop Filters

Textbook

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

Decibel Calculator

Tools

This calculator will convert voltage or power gains into decibels. Enter one of the three values and the calculator will output the other two.

Harmonic Phase Sequences

Textbook

In the last section, we saw how the 3rd harmonic and all of its…

Attenuators

Textbook

What is Attenuators? Attenuators are passive devices. It is…

Polar Form and Rectangular Form Notation for Complex Numbers

Textbook

In order to work with complex numbers without drawing vectors, we…

Maximum Power Transfer Theorem

Textbook

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

Waveguide Calculator (Rectangular)

Tools

This tool calculates the cutoff frequency of a rectangular waveguide

Design Project: Radio Transmitter

Worksheets - Wireless/RF

Research the FCC (Federal Communication Commission) guidelines on…

Simple Parallel (Tank Circuit) Resonance

Textbook

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

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…

Analog and Digital Signals

Textbook

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

Inverting and Noninverting OpAmp Voltage Amplifier Circuits

Worksheets - Wireless/RF

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

Amplifier Gain

Textbook

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

Pi Attenuator Calculator

Tools

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

Electrical Signal Types

Textbook

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

Battery Life Calculator

Tools

This calculator provides three options—basic, intermediate, and advanced—for determining expected battery life for microcontroller, Internet of Things (IoT), and edge processing systems with up to four different operating modes.

DC Mesh Current Analysis

Worksheets - Wireless/RF

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

Digital Communication

Worksheets - Wireless/RF

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

Potential Pitfalls

Textbook

Fallacious reasoning and poor interpersonal relations account for more…

Transistor Ratings and Packages (JFET)

Textbook

Phase Rotation

Textbook

Three-Phase Alternator Let’s take the three-phase alternator…

Logic Signal Voltage Levels

Textbook

Input Voltages for Logic Gates Logic gate circuits are designed to…

DC Branch Current Analysis

Worksheets - Wireless/RF

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

Multiplexers

Textbook

A multiplexer, abbreviated mux, is a device that has multiple inputs…

Motor Control Circuits

Textbook

The interlock contacts installed in the previous section’s motor…

Nonlinear Resistance

Textbook

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

Conductors, Insulators, and Electron Flow

Textbook

The electrons of different types of atoms have different degrees of…

Harmonics in Polyphase Power Systems

Textbook

In the chapter on mixed-frequency signals, we explored the concept of…

Re-drawing Complex Schematics

Textbook

Typically, complex circuits are not arranged in nice, neat, clean…

Decoder

Textbook

A decoder is a circuit that changes a code into a set of signals. It…

Decibels Equations

Textbook

  RELATED WORKSHEETS: Decibel Measurements Worksheet

Ionization (gas-filled) Tubes

Textbook

So far, we’ve explored tubes which are totally…

Active-mode Operation (BJT)

Textbook

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

The S-R Latch

Textbook

A bistable multivibrator has two stable states, as indicated by the…

Capacitor Impedance Calculator

Tools

This tool calculates a capacitor's reactance for a given capacitance value and signal frequency.

Simple Series Resonance

Textbook

A similar effect happens in series inductive/capacitive circuits. When…

Meter Check of a Transistor (BJT)

Textbook

Bipolar transistors are constructed of a three-layer semiconductor…

Binary Math

Worksheets - Wireless/RF

Counting practice: count from zero to thirty-one in binary, octal, and…

Microphones

Worksheets - Wireless/RF

Explain how a moving-coil, or dynamic microphone works. Identify how…

Design Project: Intercom System

Worksheets - Wireless/RF

Design a passive circuit that will create a "split” ( V/-V) power…

JFET Amplifiers

Worksheets - Wireless/RF

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

Hysteresis

Textbook

Thyristors are a class of semiconductor components exhibiting…

Instrumentation Amplifier Gain Calculator

Tools

The instrumentation amplifier calculator will assist in the design and analysis of a conventional instrumentation amplifier circuit by calculating the required resistor values and gain.

Latch Circuits

Worksheets - Wireless/RF

What do you think this logic buffer gate will do, with the output…

The Exclusive-OR Function: The XOR Gate

Textbook

What Is an XOR Gate? One element conspicuously missing from the set of…

Rules for Derivatives

Textbook

Constant rule Rule of sums Rule of differences Product rule Quotient…

Circuit Simplification Examples

Textbook

Let’s begin with a semiconductor gate circuit in need of…

Arc Flash and Arc Blast

Worksheets - Wireless/RF

Electromechanical relays used to start and stop high-power electric…

Square Wave Signals

Textbook

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

Boolean Rules for Simplification

Textbook

Boolean algebra finds its most practical use in the simplification of…

Thyristor Application Circuits

Worksheets - Wireless/RF

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

Time-Delay Electromechanical Relays

Worksheets - Wireless/RF

What does the normal status of an electrical switch refer to?…

Asymmetric Stripline Impedance Calculator

Tools

This calculator helps you compute the characteristic impedance of an asymmetric stripline

Differentiator and Integrator Circuits

Textbook

By introducing electrical reactance into the feedback loops of an…

Precision Potentiometer

Textbook

PARTS AND MATERIALS Two single-turn, linear-taper potentiometers, 5…