Special-purpose Diodes

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

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Digital Display Circuits

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

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Programmable Logic Controllers (PLC)

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

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Synchronous Motors

Single Phase Synchronous Motors Single-phase synchronous motors are…

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Display Tubes

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

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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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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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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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Special-purpose Diodes

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

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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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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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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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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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Optoelectronic Devices

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

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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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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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Convert MCD to Lumens

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

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Design Project: LED Stroboscope

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

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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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Digital Display Circuits

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

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Karnaugh Mapping

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

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Calculus for Electric Circuits

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

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Boolean Algebraic Identities

In mathematics, an identity is a statement true for all possible…

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The Common-gate Amplifier (JFET)

RELATED WORKSHEETS: JFET Amplifiers Worksheet

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Design Project: AC-DC Power Supply

Safety is very important when designing and/or building a device…

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Introduction to Digital Communication

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

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Intro Lab - Electromagnetic Induction

In this hands-on electronics experiment, you will learn about electromagnetic induction using an electromagnet and a permanent magnet.

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Resonance in Series-Parallel Circuits

In simple reactive circuits with little or no resistance, the effects…

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Data Flow

Buses and networks are designed to allow communication to occur…

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The Instrumentation Amplifier

What Is an Instrumentation Amplifier? An instrumentation amplifier…

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Ohmmeter Design

Though mechanical ohmmeter (resistance meter) designs are rarely used…

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Control Circuits

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Basic AC-DC Power Supplies

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

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Gate Universality

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

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Class C BJT Amplifiers

A common class of operation used in radio-frequency (RF) amplifier…

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Properties of Exponents

Product of Powers Property am an = am+n   Power of a Product…

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Pi Attenuator Calculator

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

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Binary Addition

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

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Voltage and Current

As was previously mentioned, we need more than just a continuous path…

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Energy, Work, and Power

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

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Step-up and Step-down Transformers

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

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