Special-purpose Diodes

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

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Textbook

Digital Display Circuits

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

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Worksheets - LCDs

Design Project: LED Stroboscope

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

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Worksheets - LCDs

555 Lab - Red LED Flasher

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

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Textbook

Programmable Logic Controllers (PLC)

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

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Textbook

Series LED Resistor Calculator

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.

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Tools

Synchronous Motors

Single Phase Synchronous Motors Single-phase synchronous motors are…

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Textbook

Digital Display Circuits

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

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Worksheets - LCDs

Special-purpose Diodes

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

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Textbook

Digital Lab - 10-bit Flashing LED Sequencer

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.

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Textbook

Si Lab - Light Sensor (LED Photodetector)

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.

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Textbook

555 Lab - Advanced Red LED Flasher

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.

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Textbook

Digital Lab - Digital Combination Lock

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.

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Textbook

Digital Lab - 7-segment LED Display

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.

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Textbook

555 Lab - LED Flasher with Inductive Flyback

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.

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Textbook

Si Lab - Bipolar Transistor as a Switch

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

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Textbook

555 Lab - Blue LED Flasher With Voltage Doubler

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.

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Textbook

Optoelectronic Devices

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

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Worksheets - LCDs

Display Tubes

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

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Textbook

Karnaugh Mapping

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

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Worksheets - LCDs

Convert MCD to Lumens

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

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Tools

Binary Addition

The Rules of Binary Addition Adding binary numbers is a very simple…

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Textbook

Resistivity Calculator

This calculator calculates the resistivity of a component based on its resistance value, length, and cross-sectional area.

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Tools

Capacitor Sizing Equation

Capacitance Formula     Permittivity of Dielectric  …

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Textbook

Current Divider Circuits

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

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Worksheets - LCDs

Radicals

Definition of a Radical Given the expression where “x” is…

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Textbook

DIY EE Lab - Setting Up a Home Electronics Lab

To build the DIY electronics projects described in this textbook, you will need a small work area, a few tools, and some basic electronics supplies. This page describes the setup of a low-cost home electronics laboratory.

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Textbook

Data Flow

Buses and networks are designed to allow communication to occur…

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Textbook

Vol VI. Credits

The following is a partial list of contributors to the current online…

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Textbook

OpAmp Oscillator Circuits

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

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Worksheets - LCDs

Active Loads in Amplifier Circuits

We know that the current in a series circuit may be calculated with…

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Worksheets - LCDs

Electromagnetism

The discovery of the relationship between magnetism and electricity…

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Textbook

Definite Integrals and the Fundamental Theorem of Calculus

        RELATED WORKSHEET: Calculus for Electric…

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Textbook

High-pass Filters

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

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Textbook

Design Project: Audio Tone Control

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

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Worksheets - LCDs

Microprocessors

Early computer science pioneers such as Alan Turing and John Von…

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Textbook

Switch Contact Design

A switch can be constructed with any mechanism bringing two conductors…

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Textbook

The Silicon-Controlled Switch (SCS)

If we take the equivalent circuit of an SCR and add another external…

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Textbook

Elementary Circuits

In the simplest terms you can think of, define what an electrical…

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Worksheets - LCDs

The TRIAC

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

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Textbook

Finite-length Transmission Lines

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

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Textbook