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.
Textbook
Schottky diodes Schottky diodes are constructed of a metal-to-N…
Textbook
Calculate the equivalent resistance of up to six resistors in parallel with ease while learning how to calculate resistance in parallel and the parallel resistance formula.
Tools
What is the purpose of a seven-segment decoder circuit? What is a…
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Don’t just sit there! Build something!! Learning to mathematically…
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Don’t just sit there! Build something!! Learning to mathematically…
Worksheets - LED Drivers
Electromechanical watt-hour meters use an aluminum disk that is spun…
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If we were to express the series-connected DC voltages as phasors…
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What is the purpose of a seven-segment decoder circuit? What is a…
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Suppose we had a simple one-battery, one-lamp circuit controlled by a…
Textbook
What does it mean for an object to have an electric charge? Give an…
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Don’t just sit there! Build something!! Learning to mathematically…
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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.
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.
Textbook
In this hands-on electronics experiment, you will connect batteries in parallel to power a light and learn the relationship between the individual battery currents and the total system current.
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.
Textbook
Shown here is the schematic symbol for a resistor: What is the purpose…
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What is the purpose of the switch shown in this schematic diagram?
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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.
Tools
Don’t just sit there! Build something!! Learning to mathematically…
Worksheets - LED Drivers
Don’t just sit there! Build something!! Learning to mathematically…
Worksheets - LED Drivers
A technician uses a stroboscope to “freeze” the rotation of a…
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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.
Textbook
It is fairly important to use large value resistors (10 MΩ works…
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Don’t just sit there! Build something!! Learning to mathematically…
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For ease of drawing complex circuit diagrams, electronic amplifiers…
Textbook
Stepper Motor vs Servo Motor A stepper motor is a…
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.
Textbook
Don’t just sit there! Build something!! Learning to analyze relay…
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Limitations of Electromechanical Relays As versatile as…
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Superconducting devices, though not widely used, have some unique…
Textbook
This calculator calculates the resistivity of a component based on its resistance value, length, and cross-sectional area.
Tools
Don’t just sit there! Build something!! Learning to mathematically…
Worksheets - LED Drivers
So far, we’ve been analyzing single-battery, single-resistor…
Textbook
The final transistor amplifier configuration (Figure below) we need to…
Textbook
The atoms in insulating materials have very tightly-bound electrons,…
Textbook
Shockley Diodes and Silicon Controlled Rectifiers (SCRs) Shockley…
Textbook
Determine what the magnitude and polarity of the voltmeter’s…
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Contributors to this chapter are listed in chronological order of…
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Mathematicians use Venn diagrams to show the logical relationships of…
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What Is an Instrumentation Amplifier? An instrumentation amplifier…
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Suppose you were installing a high-power stereo system in your car,…
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With this lesson, I hope to avoid a common mistake found in…
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With simple series circuits, all components are connected end-to-end…
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Electromechanical watt-hour meters use an aluminum disk that is spun…
Worksheets - LED Drivers
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