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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.

AC phase

Worksheets - Lighting

If we were to express the series-connected DC voltages as phasors…

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.

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.

Simple Circuits

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Shown here is the schematic symbol for a resistor: What is the purpose…

Switches

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What is the purpose of the switch shown in this schematic diagram?

Design Project: LED Stroboscope

Worksheets - Lighting

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

Thyristors

Worksheets - Lighting

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

Parallel Resistor Calculator

Tools

Calculate the equivalent resistance of up to six resistors in parallel with ease while learning how to calculate resistance in parallel and the parallel resistance formula.

Thyristor Application Circuits

Worksheets - Lighting

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

Current Divider Circuits

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

AC Motor Theory

Worksheets - Lighting

Electromechanical watt-hour meters use an aluminum disk that is spun…

Circuits and the Speed of Light

Textbook

Suppose we had a simple one-battery, one-lamp circuit controlled by a…

Rectifier Circuits

Worksheets - Lighting

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

Special-purpose Diodes

Textbook

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

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.

Digital Display Circuits

Worksheets - Lighting

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

Static Electricity

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What does it mean for an object to have an electric charge? Give an…

Convert MCD to Lumens

Tools

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

Band-pass Filters

Textbook

How to Create Band-pass Filter There are applications where a…

Special-purpose Diodes

Textbook

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

Switches, Process Actuated

Textbook

It is very important to keep in mind that the “normal”…

Programmable Logic Technology

Worksheets - Lighting

Define the following acronyms as they apply to digital logic circuits:…

Coax Inductance Calculator

Tools

A calculator for computing the inductance of a coaxial cable.

Design Project: Arbitrary Waveform Generator

Worksheets - Lighting

What, exactly, is an arbitrary waveform generator, and for what…

Wire Microstrip Impedance Calculator

Tools

A helpful tool for calculating the impedance of a wire microstrip.

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

Textbook

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

Si Lab - Differential Amplifier

Textbook

In this hands-on semiconductor electronics experiment, build a BJT differential amplifier and learn about a fundamental building block that is the basis of most operational amplifiers.

Systems of Numeration

Textbook

Roman Numerals The Romans devised a system that was a substantial…

Protective Relay Circuits

Worksheets - Lighting

Protective relays are special power-sensing devices whose job it is to…

Amplifier Gain

Textbook

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

Quantum Devices

Textbook

Most integrated circuits are digital, based on MOS (CMOS) transistors.…

Depletion-type IGFETs

Textbook

Insulated gate field-effect transistors are unipolar devices just like…

Si Lab - BJT Common-collector Voltage Follower

Textbook

In this hands-on semiconductor electronics experiment, build a voltage follower amplifier using a bipolar junction transistor (BJT) in common-collector configuration and learn about circuit ground and impedance transformations.

JFET Quirks

Textbook

Basic Troubleshooting Strategies

Worksheets - Lighting

A chandelier has five light bulbs in it, and one of them is not…

Bridged-Tee Attenuator Calculator

Tools

This calculator helps you determine the values of the resistors R1 and R2 to be used for a bridged-tee attenuator.

Shift Registers

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

Likely Failures in Unproven Systems

Textbook

“All men are liable to error;” —John Locke Whereas…

Transistor Ratings and Packages (IGFET)

Textbook

Other Specialized Motors

Textbook

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

Wire Self Inductance Calculator

Tools

This calculator will help compute the inductance of a length of wire.

Basic Algebra and Graphing for Electric Circuits

Worksheets - Lighting

Many different equations used in the analysis of electric circuits may…

Design Project: Dual-output AC-DC Power Supply

Worksheets - Lighting

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

Multimeters

Textbook

Seeing as how a common meter movement can be made to function as a…

Counter Modulus

Textbook

Incomplete

DC Lab - An Analog Computer For Averaging

Textbook

In this hands-on electronics experiment, you will build a simple circuit that computes the average of voltages and learn about analog computers and their application.

Peak Detector

Textbook

A peak detector is a series connection of a diode and a…

TTL NOR and OR gates

Textbook

TTL Circuit Analysis Let’s examine the following TTL circuit and…

Algebraic Equation Manipulation for Electric Circuits

Worksheets - Lighting

The electrical resistance of a conductor at any temperature may be…

Computational Circuits

Textbook

When someone mentions the word “computer,” a digital…

555 Timer Monostable Circuit Calculator

Tools

This calculator computes for the output pulse width of a 555 timer monostable circuit

AC Negative Feedback OpAmp Circuits

Worksheets - Lighting

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

Ideal Diode Current and Voltage Calculator

Tools

This calculator solves for any single missing value in the ideal diode I-V equation for a forward-biased PN-junction diode. Parameters are current, saturation current, voltage, temperature, and ideality factor.

Quantum Physics

Textbook

“I think it is safe to say that no one understands quantum…

What is a Filter?

Textbook

It is sometimes desirable to have circuits capable of selectively…

Symmetric Stripline Impedance Calculator

Tools

This calculator helps you compute the characteristic impedance of a symmetric stripline.

Practical Considerations - Batteries

Textbook

When connecting batteries together to form larger “banks”…

Electrical Transients

Textbook

This chapter explores the response of capacitors and inductors to…