Categories

Design Project: LED Stroboscope

Worksheets - Lighting

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

CMOS 555 Long Duration Red LED Flasher

Textbook

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

CMOS 555 Long Duration Flyback LED Flasher

Textbook

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

CMOS 555 Long Duration Blue LED Flasher

Textbook

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

Simple Circuits

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

LED Sequencer

Textbook

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

Special-purpose Diodes

Textbook

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

Digital Display Circuits

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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…

AC Motor Theory

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

AC phase

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

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.

Thyristor Application Circuits

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

Switches

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

Light-Pulse Switch

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

Circuits and the Speed of Light

Textbook

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

CMOS 555 Long Duration Minimum Parts Red LED Flasher

Textbook

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

Thyristors

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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…

Rectifier Circuits

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

Capacitor Types

Textbook

A capacitor is a passive two-terminal electronic component that…

Contributors (1)

Textbook

Contributors to this chapter are listed in chronological order of…

Open-Loop OpAmp Circuits

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Determine what the magnitude and polarity of the voltmeter’s…

The Pentode

Textbook

Another strategy for addressing the problem of secondary electrons…

Minterm vs Maxterm Solution

Textbook

So far we have been finding Sum-Of-Product (SOP) solutions to logic…

Selsyn (Synchro) Motors

Textbook

Normally, the rotor windings of a wound rotor induction motor are…

Using Multiple Combinational Circuits

Textbook

As an example of using several circuits together, we are going to make…

Voltage and Current in a Practical Circuit

Textbook

Because it takes energy to force charge to flow against the opposition…

An Analogy for Ohm’s Law

Textbook

Ohm’s Law also makes intuitive sense if you apply it to the…

Time Constant Equations

Textbook

Value of time constant in series RC and RL circuits   Time…

Inductor Commutating Circuits

Textbook

A popular use of diodes is for the mitigation of inductive…

Positive Feedback

Textbook

As we’ve seen, negative feedback is an incredibly useful…

Skin Depth Calculator

Tools

A tool designed to calculate skin depth based on the conductive material being used and the frequency of the signal.

Memory Devices

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

Ionization (gas-filled) Tubes

Textbook

So far, we’ve explored tubes which are totally…

Beam Power Tubes

Textbook

In the beam power tube, the basic four-element structure of the…

Phase Rotation

Textbook

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

Microstrip Impedance Calculator

Tools

This calculator helps you compute the characteristic impedance of a microstrip.

Stepper Motors

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

Computational Circuits

Textbook

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

Copper Wire Gauge Table

Textbook

Solid Cooper Wire Table Size Diameter (inches) Cross-sectional area…

Critical Temperatures for Superconductors

Textbook

Critical temperatures given in Kelvins Material Element/Alloy Critical…

Op-Amp Voltage and Gain Calculator

Tools

A calculator for computing the gain and output voltage of an operational amplifier

pH Measurement

Textbook

A very important measurement in many liquid chemical processes…

Voltage Multipliers (Doublers, Triplers, Quadruplers, and More)

Textbook

A voltage multiplier is a specialized rectifier circuit…

Design Project: Audio Power Amplifier

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

Diodes

Textbook

A diode is an electronics component made from a combination of a…

Control Circuits

Textbook

Binary Overflow

Textbook

One caveat with signed binary numbers is that of overflow, where the…

Inductor Transient Response

Textbook

Inductors have the exact opposite characteristics of capacitors.…

DC Circuit Equations and Laws

Textbook

Power Equation of Ohm’s Law and Joule’s Law    …

Metric Prefix Conversions

Textbook

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

Fundamentals of Radio Communication

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What does the acronym RF stand form, in reference to radio-related…

Impedance Matching With Transformers

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Suppose you were to take a 3 kW electric heater rated for 240 VAC and…

Characteristic Impedance

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Note the “50 ohm” rating printed on the jacket of the cable. What…

Full-wave Center-tap Rectifier

Textbook

PARTS AND MATERIALS Low-voltage AC power supply (6-volt output) Two…

Correct use of Ohm’s Law

Textbook

Reminders When Using Ohm’s Law One of the most common mistakes…

The D Latch

Textbook

Since the enable input on a gated S-R latch provides a way to latch…

Microstrip Trace Width Calculator

Tools

This tool is designed to compute for the trace width of a microstrip

Radicals

Textbook

Definition of a Radical Given the expression where “x” is…