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Programmable Logic Controllers (PLC)

Textbook

Before the advent of solid-state logic circuits, logical control…

Display Tubes

Textbook

In addition to performing tasks of amplification and switching, tubes…

Digital Display Circuits

Worksheets - LEDs

What is the purpose of a seven-segment decoder circuit? What is a…

Digital Lab - 7-segment LED Display

Textbook

In this hands-on electronics experiment, you will control a 7-segment binary-coded decimal (BCD) display and learn about active-low and active-high logic inputs.

Special-purpose Diodes

Textbook

Schottky diodes Schottky diodes are constructed of a metal-to-N…

Optoelectronic Devices

Worksheets - LEDs

In this circuit, the electric motor is supposed to turn on whenever…

Synchronous Motors

Textbook

Single Phase Synchronous Motors Single-phase synchronous motors are…

Digital Lab - Digital Combination Lock

Textbook

In this hands-on electronics experiment, build a digital combination lock with LED output indicators and learn about XOR gate functionality and how to implement NOR logic functionality using diodes.

Series LED Resistor Calculator

Tools

This series LED resistance calculator is perfect for when you have a single LED or a number of the same color of LEDs in series and need to know which resistor you should use.

555 Lab - Red LED Flasher

Textbook

In this hands-on electronics experiment, you will build a red LED flasher and learn a useful application of the versatile 555 timer IC.

Si Lab - Light Sensor (LED Photodetector)

Textbook

In this hands-on semiconductor electronics experiment, use an LED as a light-sensitive photodetector and learn how to use a bipolar transistor in a common-emitter amplifier configuration.

Special-purpose Diodes

Textbook

Schottky diodes Schottky diodes are constructed of a metal-to-N…

555 Lab - Blue LED Flasher With Voltage Doubler

Textbook

In this hands-on electronics experiment, build a blue LED flasher using a 555 timer and learn the basic theory of a voltage doubler using a transistor switch and a capacitor.

Optoelectronic Devices

Worksheets - LEDs

In this circuit, the electric motor is supposed to turn on whenever…

Digital Lab - 7-segment LED Display

Textbook

In this hands-on electronics experiment, you will control a 7-segment binary-coded decimal (BCD) display and learn about active-low and active-high logic inputs.

Digital Display Circuits

Worksheets - LEDs

What is the purpose of a seven-segment decoder circuit? What is a…

Si Lab - Bipolar Transistor as a Switch

Textbook

In this hands-on semiconductor electronics experiment, use a bipolar junction transistor (BJT) to switch an LED and learn about the current their amplification.

Programmable Logic Controllers (PLC)

Textbook

Before the advent of solid-state logic circuits, logical control…

Design Project: LED Stroboscope

Worksheets - LEDs

A technician uses a stroboscope to “freeze” the rotation of a…

555 Lab - LED Flasher with Inductive Flyback

Textbook

In this hands-on electronics experiment, build a multiple LED flasher and learn how to use inductive flyback to generate a voltage pulse that is greater than the supply voltage.

555 Lab - Advanced Red LED Flasher

Textbook

In this hands-on electronics experiment, build a red LED flasher with a transistor drive to control the current and learn how to use transistors to provide current gain and how to limit LED current.

Display Tubes

Textbook

In addition to performing tasks of amplification and switching, tubes…

Convert MCD to Lumens

Tools

This calculator is useful for calculating the luminous flux for LEDs where the angle is known.

Digital Lab - 10-bit Flashing LED Sequencer

Textbook

In this hands-on electronics experiment, build and test an automated circuit that sequentially flashes 10 LED, and learn about counters, frequency dividers, and switch debouncing.

Karnaugh Mapping

Worksheets - LEDs

Identify each of these logic gates by name, and complete their…

Critical Temperatures for Superconductors

Textbook

Critical temperatures given in Kelvins Material Element/Alloy Critical…

Time-delay Relays

Textbook

What are Time-Delay Relays? Some relays are constructed with a kind of…

True, Reactive, and Apparent Power

Textbook

Reactive Power We know that reactive loads such as inductors and…

LC Tank Circuit Resonance Calculator

Tools

This calculator computes the resonant frequency of a parallel inductor and capacitor "tank" circuit.

The R/2R DAC (Digital-to-Analog Converter)

Textbook

The R/2R DAC circuit is an alternative to the binary-weighted-input…

Introduction to Boolean Algebra

Textbook

Mathematical rules are based on the defining limits we place on the…

Introduction to AC Motors

Textbook

After the introduction of the DC electrical distribution system by…

Wound Rotor Induction Motors

Textbook

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

Meter Check of a Transistor (JFET)

Textbook

Testing a JFET with a multimeter might seem to be a relatively easy…

Insulated Gate Bipolar Transistors

Worksheets - LEDs

What is an Insulated Gate Bipolar Transistor (IGBT), and what…

AC Lab - Phase Shift in a Capacitive Circuit

Textbook

In this hands-on AC electronics experiment, build a simple RC circuit that demonstrates phase shift and learn how out-of-phase AC voltages do not add algebraically.

Beam Power Tubes

Textbook

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

Electrical Conduction in Semiconductors

Worksheets - LEDs

In any electrically conductive substance, what are charge carriers?…

Rectangle Loop Inductance Calculator

Tools

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

Passive Integrator and Differentiator Circuits

Worksheets - LEDs

∫f(x) dx Calculus alert! Calculus is a branch of mathematics that…

Step-up and Step-down Transformers

Textbook

So far, we’ve observed simulations of transformers where the…

Basic Ammeter Use

Worksheets - LEDs

Show how this ammeter would be connected to the light bulb circuit to…

Numbers and Symbols

Textbook

The expression of numerical quantities is something we tend to take…

555 Lab - Introduction to the 555 Timer IC

Textbook

In this collection of hands-on electronics experiments, build and test mixed-signal analog and digital circuits using the versatile 555 timer IC. These projects will teach you about RC time constants, duty cycle, transistor current drive, LEDs, voltage doublers, and more.

Voltage and Current Calculations

Textbook

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