Latest Light Sensors Education

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Circuits and the Speed of Light

Textbook

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

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.

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.

Special-purpose Diodes

Textbook

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

Thyristor Application Circuits

Worksheets - Light Sensors

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

AC Motor Theory

Worksheets - Light Sensors

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

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.

Simple Circuits

Worksheets - Light Sensors

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

Digital Display Circuits

Worksheets - Light Sensors

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

Static Electricity

Worksheets - Light Sensors

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

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.

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.

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.

Design Project: LED Stroboscope

Worksheets - Light Sensors

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

AC phase

Worksheets - Light Sensors

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

Series-Parallel DC Circuits

Worksheets - Light Sensors

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

Rectifier Circuits

Worksheets - Light Sensors

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

Switches

Worksheets - Light Sensors

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

Light-Pulse Switch

Worksheets - Light Sensors

It is fairly important to use large value resistors (10 MΩ works…

Current Divider Circuits

Worksheets - Light Sensors

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

Insulated Gate Field-Effect Transistors

Worksheets - Light Sensors

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

Calculating Power Factor

Textbook

As was mentioned before, the angle of this “power…

Kelvin (4-wire) Resistance Measurement

Textbook

Suppose we wished to measure the resistance of some component located…

History of SPICE

Textbook

SPICE is a computer program designed to simulate analog electronic…

Coefficients of Specific Resistance

Textbook

Specific resistance at 20o C:  Material Element/Alloy ohm-cmil/ft…

Electrical Connections

Worksheets - Light Sensors

What, exactly, is necessary to establish electrical continuity between…

Si Lab - BJT Common-emitter Amplifier

Textbook

In this hands-on semiconductor electronics experiment, construct a common-emitter amplifier using a bipolar junction transistor (BJT) and learn about amplifier gain and feedback.

Vol II. Credits

Textbook

All entries arranged in alphabetical order of surname. Major…

Advanced Electromagnetism and Electromagnetic Induction

Worksheets - Light Sensors

∫f(x) dx Calculus alert! Electronic power conversion circuits known…

Timer Circuits

Worksheets - Light Sensors

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

Complex Voltage and Current Calculations

Textbook

There are circumstances when you may need to analyze a DC reactive…

Decoder

Textbook

A decoder is a circuit that changes a code into a set of signals. It…

Ohm’s Law - How Voltage, Current, and Resistance Relate

Textbook

The first, and perhaps most important, relationship between current,…

Edge-triggered Latches: Flip-Flops

Textbook

So far, we’ve studied both S-R and D latch circuits with enable…

Power Quality Measurement

Textbook

It used to be with large AC power systems that “power…

Critical Temperatures for Superconductors

Textbook

Critical temperatures given in Kelvins Material Element/Alloy Critical…

Transistor Biasing Calculations

Textbook

Although transistor switching circuits operate without bias, it is…

What is a Meter?

Textbook

A meter is any device built to accurately detect and display an…

Tube Parameters

Textbook

For bipolar junction transistors, the fundamental measure of…

Calculating Electric Power

Textbook

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