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
Electromechanical watt-hour meters use an aluminum disk that is spun…
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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…
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What does it mean for an object to have an electric charge? Give an…
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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
Shown here is the schematic symbol for a resistor: What is the purpose…
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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 build a red LED flasher and learn a useful application of the versatile 555 timer IC.
Textbook
What is the purpose of the switch shown in this schematic diagram?
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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
Don’t just sit there! Build something!! Learning to mathematically…
Worksheets - Lighting
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
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
This calculator is useful for calculating the luminous flux for LEDs where the angle is known.
Tools
Schottky diodes Schottky diodes are constructed of a metal-to-N…
Textbook
If we were to express the series-connected DC voltages as phasors…
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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
Don’t just sit there! Build something!! Learning to mathematically…
Worksheets - Lighting
A serial-in, parallel-out shift register is similar to the serial-in,…
Textbook
Consider a circuit for a single-phase AC power system, where a 120…
Textbook
As was stated in the last chapter, there is more than one type of…
Textbook
You may have wondered where we got that strange equation for the…
Textbook
This calculator helps you compute the characteristic impedance of a symmetric stripline.
Tools
The Law of Sines (for any triangle) The Law of Cosines (for any…
Textbook
The smaller the cross-sectional area of any given wire, the greater…
Textbook
Textbook
Phase shift oscillator. R1C1, R2C2, and R3C3 each provide 60° of…
Textbook
Seeing as how a common meter movement can be made to function as a…
Textbook
With BogusBus, our signals were very simple and straightforward: each…
Textbook
So far, we’ve been analyzing single-battery, single-resistor…
Textbook
If a pulse-width modulated (PWM) signal is sent to a passive…
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The basic application of Ohm’s law to combinations of series and…
Textbook
An electromechanical generator is a device capable of producing…
Textbook
There are four basic factors of inductor construction determining the…
Textbook
In power distribution systems, it is very important to be able to…
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Contributors to this chapter are listed in chronological order of…
Textbook
When capacitors are connected in series, the total capacitance is…
Textbook
Since the enable input on a gated S-R latch provides a way to latch…
Textbook
When plotted on a curve tracer, the characteristic curve for a normal…
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The basic application of Ohm’s law to combinations of series and…
Textbook
The benefits of scientific notation do not end with ease of writing…
Textbook
Introduction Whenever an electric voltage exists between two separated…
Textbook
The purpose of the parallel-in/ parallel-out shift register is to take…
Textbook
In this hands-on electronics experiment, you will build a programmable non-inverting amplifier and learn how to use the negative feedback of an operational amplifier to control the gain.
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.
Textbook
An inductor is a passive two-terminal electrical component that…
Textbook
What is an Operational Amplifier (Op-amp)? Operational Amplifiers,…
Textbook
(Template)
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Over the course of the next few chapters, you will learn that AC…
Textbook
Bipolar Junction Transistor or BJT Current Mirror An often-used…
Textbook
Parallel-in/ serial-out shift registers do everything that the…
Textbook
Point-to-Point Connecting two digital devices with a network, would…
Textbook
An ideal transistor would show 0% distortion in amplifying a signal.…
Textbook
In this hands-on electronics experiment, you will construct a voltage detector with adjustable sensitivity and audio output, and you will learn a method for detecting small electrical signals without an oscilloscope.
Textbook
Though mechanical ohmmeter (resistance meter) designs are rarely used…
Textbook
A technician uses a stroboscope to “freeze” the rotation of a…
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What does it mean for an object to have an electric charge? Give an…
Worksheets - Lighting
Contributors to this chapter are listed in chronological order of…
Textbook
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