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
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
This calculator is useful for calculating the luminous flux for LEDs where the angle is known.
Tools
What is the purpose of a seven-segment decoder circuit? What is a…
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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
What does it mean for an object to have an electric charge? Give an…
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Schottky diodes Schottky diodes are constructed of a metal-to-N…
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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
Suppose we had a simple one-battery, one-lamp circuit controlled by a…
Textbook
What is the purpose of the switch shown in this schematic diagram?
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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
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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Don’t just sit there! Build something!! Learning to mathematically…
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A technician uses a stroboscope to “freeze” the rotation of a…
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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
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
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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How is it possible to electrically measure the torque output by a…
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The concept of a mathematical power is familiar to most students of…
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Introduction Whenever an electric voltage exists between two separated…
Textbook
SPICE is a computer program designed to simulate analog electronic…
Textbook
This calculator provides three options—basic, intermediate, and advanced—for determining expected battery life for microcontroller, Internet of Things (IoT), and edge processing systems with up to four different operating modes.
Tools
Don’t just sit there! Build something!! Learning to mathematically…
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Fundamentally, an amplifier is a device that takes in a low-power…
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Three-phase Wye(Y) Connection Initially, we explored the idea of…
Textbook
Previously, we examined series circuits and parallel circuits using…
Textbook
Don’t just sit there! Build something!! Learning to analyze digital…
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In mathematics, an identity is a statement true for all possible…
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A very useful tool for observing rotating objects is a strobe light.…
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This calculator helps you compute the inductance of a broadside coupled trace.
Tools
Brushless DC motors were developed from conventional brushed DC motors…
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A very important measurement in many liquid chemical processes…
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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
Power in an electric circuit is the product (multiplication) of…
Textbook
An often neglected area of study in modern electronics is that of…
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When capacitors are connected in series, the total capacitance is…
Textbook
This calculator computes the noise figure and noise temperature in a system
Tools
In this hands-on electronics experiment, build a 3-bit down counter using J-K flip-flops and learn about asynchronous counter functionality.
Textbook
Often in the course of designing and building electrical meter…
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Textbook
A helpful tool for computing the Effective Isotropic Radiated Power (EIRP) of an antenna
Tools
Mathematicians use Venn diagrams to show the logical relationships of…
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As an instructor of electronics, I am called upon frequently to help…
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Because octal and hexadecimal numeration systems have bases that are…
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Before the advent of solid-state logic circuits, logical control…
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This calculator gives the reactance and admittance of an inductor or the inductance given the reactance of an inductor
Tools
Don’t just sit there! Build something!! Learning to analyze digital…
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In instrumentation circuitry, DC signals are often used as analog…
Textbook
Using an electrical meter safely and efficiently is perhaps the most…
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One caveat with signed binary numbers is that of overflow, where the…
Textbook
Inductors do not have a stable “resistance” as conductors…
Textbook
In this hands-on electronics experiment, you will build a monostable multivibrator using a 555 timer IC and learn about RC time constant charging and how a one-shot timer operates.
Textbook
As we’ve seen, negative feedback is an incredibly useful…
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If a pulse-width modulated (PWM) signal is sent to a passive…
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OK, so how exactly can we represent AC quantities of voltage or…
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Contributors to this chapter are listed in chronological order of…
Textbook
What is a harmonic frequency? If an oscillator circuit outputs a…
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