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Capacitive Touch ITO Thermostat with Wi-Fi and Bluetooth Provisioning Demo

In partnership with Texas Instruments

A demonstration of a smart, feature-rich, and IoT-ready thermostat featuring capacitive touch…

Stepper Motors

Textbook

Stepper Motor vs Servo Motor A stepper motor is a…

Reluctance Motor

Textbook

The variable reluctance motor is based on the principle that an…

Other Specialized Motors

Textbook

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

Selsyn (Synchro) Motors

Textbook

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

What is Alternating Current (AC)?

Textbook

Most students of electricity begin their study with what is known as…

Tesla Polyphase Induction Motors

Textbook

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

AC Commutator Motors

Textbook

Charles Proteus Steinmetz’s first job after arriving in America…

Brushless DC Motor

Textbook

Brushless DC motors were developed from conventional brushed DC motors…

Wound Rotor Induction Motors

Textbook

A wound rotor induction motor has a stator like a squirrel cage…

AC Instrumentation Transducers

Textbook

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

Synchronous Motors

Textbook

Single Phase Synchronous Motors Single-phase synchronous motors are…

DC Motor Control Circuits

Worksheets - IoT

How is it possible to electrically measure the torque output by a…

Design Project: Audio Tone Control

Worksheets - IoT

Suppose you were installing a high-power stereo system in your car,…

Measurements of AC Magnitude

Textbook

So far we know that AC voltage alternates in polarity and AC current…

Parallel Resistor-Inductor Circuits

Textbook

Let’s take the same components for our series example circuit…

Table (landscape view)

Textbook

Periodic table of chemical elements.

Band-stop Filters

Textbook

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

Electromagnetic Induction

Textbook

While Oersted’s surprising discovery of electromagnetism paved…

The S-R Latch

Textbook

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

Divided Feedback

Textbook

If we add a voltage divider to the negative feedback wiring so that…

What Are Electric Circuits?

Textbook

You might have been wondering how charges can continuously flow in a…

Contributors (16)

Textbook

Contributors to this chapter are listed in chronological order of…

Band Theory of Solids

Textbook

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

Amplifier Gain

Textbook

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

Power Added Efficiency Calculator

Tools

A calculator designed to compute the power-added efficiency (PAE) of an amplifier

Design Project: Intercom System

Worksheets - IoT

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

Circuit With a Switch

Textbook

PARTS AND MATERIALS 6-volt battery Low-voltage incandescent lamp…

Calculating Electric Power

Textbook

Learn the Power Formula We’ve seen the formula for determining…

Op-Amp Voltage and Gain Calculator

Tools

A calculator for computing the gain and output voltage of an operational amplifier

Complex Number Arithmetic

Textbook

Since complex numbers are legitimate mathematical entities, just like…

What is a Series-Parallel Circuit?

Textbook

With simple series circuits, all components are connected end-to-end…

What Is the Skin Effect?

Textbook

The Skin Depth of Copper in Electrical Engineering As previously…

Energy, Work, and Power

Worksheets - IoT

Define the following terms: energy, work, and power.

Time Constant Circuits

Worksheets - IoT

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

Data - Resistance & Superconductor

Textbook

Tables of specific resistance and temperature coefficient of…

Clipper and Clamper Circuits

Worksheets - IoT

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

Solving Simultaneous Equations: The Substitution Method and the Addition Method

Textbook

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

The Cascode Amplifier

Textbook

While the C-B (common-base) amplifier is known for wider bandwidth…

Transistor Ratings and Packages (BJT)

Textbook

Like all electrical and electronic components, transistors are limited…

High Voltage Ohmmeters

Textbook

Most ohmmeters of the design shown in the previous section utilize a…

Introduction to Solid-state Device Theory

Textbook

This chapter will cover the physics behind the operation of…

More on Spectrum Analysis

Textbook

Computerized Fourier analysis, particularly in the form of the FFT…

Half-wave Rectifier

Textbook

PARTS AND MATERIALS Low-voltage AC power supply (6-volt output) 6-volt…

The Pentode

Textbook

Another strategy for addressing the problem of secondary electrons…

Safe Practices

Textbook

If at all possible, shut off the power to a circuit before performing…

Inductor Quirks

Textbook

In an ideal case, an inductor acts as a purely reactive device. That…

Bipolar Junction Transistors

Textbook

The bipolar junction transistor (BJT) was named because its operation…

Common Antiderivatives

Textbook

 

Musical Keyboard as a Signal Generator

Textbook

PARTS AND MATERIALS Electronic “keyboard” (musical)…

Ionization (gas-filled) Tubes

Textbook

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

Potentiometer as a Voltage Divider

Textbook

PARTS AND MATERIALS Two 6-volt batteries Carbon pencil…