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Optoelectronic Devices

Worksheets - Optoelectronics

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

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.

CMOS 555 Long Duration Minimum Parts Red LED Flasher

Textbook

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

Programmable Logic Controllers (PLC)

Textbook

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

7-segment Display

Textbook

PARTS AND MATERIALS 4511 BCD-to-7seg latch/decoder/driver (Radio…

Design Project: LED Stroboscope

Worksheets - Optoelectronics

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

Pulsed-light Sensor

Textbook

PARTS AND MATERIALS Two 6-volt batteries One NPN…

Display Tubes

Textbook

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

CMOS 555 Long Duration Blue LED Flasher

Textbook

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

Simple Combination Lock

Textbook

PARTS AND MATERIALS 4001 quad NOR gate (Radio Shack catalog #…

Digital Display Circuits

Worksheets - Optoelectronics

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

LED Sequencer

Textbook

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

CMOS 555 Long Duration Red LED Flasher

Textbook

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

Special-purpose Diodes

Textbook

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

Convert MCD to Lumens

Tools

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

Karnaugh Mapping

Worksheets - Optoelectronics

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

CMOS 555 Long Duration Flyback LED Flasher

Textbook

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

Transistor as a Switch

Textbook

PARTS AND MATERIALS Two 6-volt batteries One NPN…

Example Circuits and Netlists

Textbook

The following circuits are pre-tested netlists for SPICE 2g6, complete…

Polarity of voltage drops

Textbook

When using conventional current flow, we can trace the direction of…

Power Density Calculator

Tools

A tool designed to calculate the power density of an antenna

Inductors

Textbook

An inductor is a passive two-terminal electrical component that…

Nonlinear Resistance

Textbook

PARTS AND MATERIALS Calculator (or pencil and paper for doing…

Oscilloscope Trigger Controls

Worksheets - Optoelectronics

A very useful tool for observing rotating objects is a strobe light.…

IGFET Amplifiers

Worksheets - Optoelectronics

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

T-Match Impedance Matching Circuits

Tools

A tool designed to compute the values to be used in a T-match Impedance Circuit

Decibels

Textbook

The Bel is Used to Represent Gain In its simplest form, an…

Basic Electromagnetic Relays

Worksheets - Optoelectronics

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

The Quadratic Formula

Textbook

Solving for x in a given polynomial equation “ax2 + bx + c…

Potential Pitfalls

Textbook

Fallacious reasoning and poor interpersonal relations account for more…

Phase Rotation

Textbook

Three-Phase Alternator Let’s take the three-phase alternator…

General Troubleshooting Tips

Textbook

When first approaching a failed or otherwise misbehaving system, the…

Metric Prefix Conversions

Textbook

To express a quantity in a different metric prefix from how it was…

Standing Waves and Resonance

Textbook

Whenever there is a mismatch of impedance between transmission line…

Memory Devices

Worksheets - Optoelectronics

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

Amplifier Impedances

Textbook

Input impedance varies considerably with the circuit configuration…

Vectors and AC Waveforms

Textbook

OK, so how exactly can we represent AC quantities of voltage or…

Coax Inductance Calculator

Tools

A calculator for computing the inductance of a coaxial cable.

Build a Transformer

Textbook

PARTS AND MATERIALS Steel flat bar, 4 pieces Miscellaneous bolts,…

DIP Gate Packaging

Textbook

Digital logic gate circuits are manufactured as integrated circuits:…

Thyristors

Worksheets - Optoelectronics

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

Electronics as Science

Textbook

Electronics is a science, and a very accessible science at that. With…

Electron Tubes

Textbook

Cathode:   This is the electrode that is heated and emits the…

Introduction to Analog Integrated Circuits

Textbook

Analog circuits are circuits dealing with signals free to vary from…

Design Project: Audio Power Amplifier

Worksheets - Optoelectronics

Explain how the microphone in your amplifier works. How, exactly, does…

Mixed-Frequency Signals

Worksheets - Optoelectronics

What is a harmonic frequency? If an oscillator circuit outputs a…

Quantum Physics

Textbook

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

Inductor-Capacitor “tank” Circuit

Textbook

PARTS AND MATERIALS Oscilloscope Assortment of non-polarized…

Brushless DC Motor

Textbook

Brushless DC motors were developed from conventional brushed DC motors…

Capacitance Calculator

Tools

This calculates the capacitance of a capacitor based on its charge, Q, and its voltage, V, according to the formula, C=Q/V.

Link Budget Calculator

Tools

This tool is designed to calculate the power at the receiver using link budget analysis.

Shift Registers: Serial-in, Parallel-out (SIPO) Conversion

Textbook

A serial-in, parallel-out shift register is similar to the serial-in,…

A Very Simple Computer

Textbook

PARTS AND MATERIALS Three batteries, each one with a different…

Rectifying Diodes

Worksheets - Optoelectronics

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

Current Divider Circuits and the Current Divider Formula

Textbook

A parallel circuit is often called a current divider for its ability…

Creating Custom Calibration Resistances

Textbook

Often in the course of designing and building electrical meter…

The Exclusive-OR Function: The XOR Gate

Textbook

What Is an XOR Gate? One element conspicuously missing from the set of…

Applications of Resonance

Textbook

So far, the phenomenon of resonance appears to be a useless curiosity,…