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Special-purpose Diodes

Textbook

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

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.

Circuits and the Speed of Light

Textbook

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

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.

Current Divider Circuits

Worksheets - Residential

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

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.

Convert MCD to Lumens

Tools

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

Rectifier Circuits

Worksheets - Residential

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

Design Project: LED Stroboscope

Worksheets - Residential

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

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.

Series-Parallel DC Circuits

Worksheets - Residential

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

Thyristor Application 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…

Simple Circuits

Worksheets - Residential

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

Light-Pulse Switch

Worksheets - Residential

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

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.

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…

AC phase

Worksheets - Residential

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

Transistors, Insulated-gate Field-effect (IGFET or MOSFET)

Textbook

We have the symbols for depletion mode and enhancement mode MOSFETs -…

Derivatives of Power Functions of e

Textbook

Example Derivatives of e Proportionality Constant When we say that a…

Wires and Connections

Textbook

Older electrical schematics showed connecting wires crossing, while…

The Silicon-Controlled Rectifier (SCR)

Textbook

Shockley Diodes and Silicon Controlled Rectifiers (SCRs) Shockley…

Digital-to-Analog Conversion

Worksheets - Residential

If a pulse-width modulated (PWM) signal is sent to a passive…

Logarithms

Textbook

Definition of a Logarithm     “log” denotes a…

Design Project: Sensitive Audio Detector

Worksheets - Residential

The choice of step-down transformers to use in a project such as this…

Intro Lab - A Simple Lighting Circuit

Textbook

In this hands-on electronics experiment, you will build a battery-operated circuit with a light and learn about open and short circuit failures.

Review of R, X, and Z (Resistance, Reactance and Impedance)

Textbook

Before we begin to explore the effects of resistors, inductors, and…

Elementary Amplifier Theory

Worksheets - Residential

Fundamentally, an amplifier is a device that takes in a low-power…

Monostable Multivibrators

Textbook

We’ve already seen one example of a monostable multivibrator in…

Special-purpose Batteries

Textbook

Mercury Standard Cell Back in the early days of electrical measurement…

Series Resistor-Inductor Circuits

Textbook

In the previous section, we explored what would happen in simple…

Contributors (12)

Textbook

Contributors to this chapter are listed in chronological order of…

Relay Construction

Textbook

Electricity and Magnetism An electric current through a conductor will…

Parallel Circuits and the Application of Ohm’s Law

Textbook

In this introduction to parallel resistance circuits, we will explain…

Series Resistor-Capacitor Circuits

Textbook

In the last section, we learned what would happen in simple…

Speed Distance Time Calculator

Tools

This calculator will solve for either distance, time, or speed given two of the three parameters.

Basic Electromagnetism and Electromagnetic Induction

Worksheets - Residential

When lightning strikes, nearby magnetic compass needles may be seen to…

DC Motor Theory

Worksheets - Residential

If the ends of a wire loop are attached to two half-circular metal…