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Circuits and the Speed of Light

Textbook

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

LED Sequencer

Textbook

PARTS AND MATERIALS 4017 decade counter/divider (Radio Shack catalog…

Pulsed-light Sensor

Textbook

PARTS AND MATERIALS Two 6-volt batteries One NPN…

Rectifier Circuits

Worksheets - Residential

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

Simple Circuits

Worksheets - Residential

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

LED Resistor Calculator

Tools

An LED resistance calculator is perfect for when you have a single LED and need to know which resistor you should use.

Switches

Worksheets - Residential

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

Light-Pulse Switch

Worksheets - Residential

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

Series-Parallel DC Circuits

Worksheets - Residential

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

Digital Display Circuits

Worksheets - Residential

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

CMOS 555 Long Duration Flyback LED Flasher

Textbook

PARTS AND MATERIALS Two AAA Batteries Battery Clip (Radio Shack…

Current Divider Circuits

Worksheets - Residential

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

CMOS 555 Long Duration Red LED Flasher

Textbook

PARTS AND MATERIALS Two AAA Batteries Battery Clip (Radio Shack…

Convert MCD to Lumens

Tools

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

CMOS 555 Long Duration Blue LED Flasher

Textbook

PARTS AND MATERIALS Two AAA Batteries Battery Clip (Radio Shack…

Thyristor Application Circuits

Worksheets - Residential

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

Static Electricity

Worksheets - Residential

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

AC Motor Theory

Worksheets - Residential

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

Thyristors

Worksheets - Residential

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…

Numbers versus Numeration

Textbook

It is imperative to understand that the type of numeration system used…

Practical Considerations - Capacitors

Textbook

Capacitors, like all electrical components, have limitations that must…

Lock-out / Tag-out

Worksheets - Residential

In this motor control circuit, how would you ensure that there is no…

CMOS 555 Long Duration Minimum Parts Red LED Flasher

Textbook

PARTS AND MATERIALS Two AAA Batteries Battery Clip (Radio Shack…

Bipolar Junction Transistors

Textbook

The bipolar junction transistor (BJT) was named because its operation…

Electrical Noise and Interference

Worksheets - Residential

Define what noise means, in the electrical sense of the word. How does…

Contributors (12)

Textbook

Contributors to this chapter are listed in chronological order of…

Simple Circuits

Worksheets - Residential

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

Encoder

Textbook

What is an Encoder? An encoder is a circuit that changes a set of…

Design Project: Event Counter

Worksheets - Residential

If your event sensing switch is mechanical in nature, you will likely…

Positive Feedback OpAmp Circuits

Worksheets - Residential

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

Coil Inductance Calculator

Tools

This calculator helps you compute the inductance of a coil.

Introduction to Combinational Logic Functions

Textbook

The term “combinational” comes to us from mathematics. In…

Resistance Calculator

Tools

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

The Common-gate Amplifier (IGFET)

Textbook

Mutual Inductors

Textbook

Microstrip Max Current Calculator

Tools

A calculator for solving the maximum current a microstrip can handle.

Logic Signal Voltage Levels

Textbook

Logic gate circuits are designed to input and output only two types of…

Bit Grouping

Textbook

The singular reason for learning and using the binary numeration…

Harmonic Phase Sequences

Textbook

In the last section, we saw how the 3rd harmonic and all of its…