This calculator is useful for calculating the luminous flux for LEDs where the angle is known.
What is the purpose of a seven-segment decoder circuit? What is a…
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.
In this hands-on electronics experiment, you will control a 7-segment binary-coded decimal (BCD) display and learn about active-low and active-high logic inputs.
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.
In this hands-on electronics experiment, build a digital combination lock with LED output indicators and learn about XOR gate functionality and how to implement NOR logic functionality using diodes.
Single Phase Synchronous Motors Single-phase synchronous motors are…
Identify each of these logic gates by name, and complete their…
In this circuit, the electric motor is supposed to turn on whenever…
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.
In this hands-on electronics experiment, you will build a red LED flasher and learn a useful application of the versatile 555 timer IC.
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.
A technician uses a stroboscope to “freeze” the rotation of a…
Schottky diodes Schottky diodes are constructed of a metal-to-N…
Before the advent of solid-state logic circuits, logical control…
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.
In this hands-on semiconductor electronics experiment, use a bipolar junction transistor (BJT) to switch an LED and learn about the current their amplification.
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.
In addition to performing tasks of amplification and switching, tubes…
Schottky diodes Schottky diodes are constructed of a metal-to-N…
Although transistor switching circuits operate without bias, it is…
Remember that this tutorial is not exhaustive by any means, and that…
The Maximum Power Transfer Theorem is not so much a means of analysis…
The purpose of the parallel-in/ parallel-out shift register is to take…
Who Developed the Karnaugh Map? Maurice Karnaugh, a…
So far, we’ve observed simulations of transformers where the…
Like all diodes, Shockley diodes are unidirectional devices; that is,…
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.
∫f(x) dx Calculus alert! Calculus is a branch of mathematics that…
This calculator computes for the capacitor charge time and energy, given the supply voltage and the added series resistance.
Don’t just sit there! Build something!! Learning to mathematically…
The R/2R DAC circuit is an alternative to the binary-weighted-input…
This calculator will compute the required resistor ratio (R2/R1) and reference voltage (VREF) to create the desired high (VTH) and low (VTL) threshold voltages in a non-inverting comparator circuit with hysteresis (commonly called a Schmitt trigger).
You might have noticed on the table for specific resistances that all…
What is the purpose of the switch shown in this schematic diagram?
Power Capacity As has already been observed, transformers must be well…
“All men are liable to error;” —John Locke Whereas…
Don’t just sit there! Build something!! Learning to mathematically…
In this hands-on semiconductor electronics experiment, build a full-wave rectifier for AC to DC conversion and learn about center-tapped transformers.
Solve this equation for the value of x: x + 5 = 8 How many exact…
Generators used in battery-charging systems must be regulated so as to…
Limitations of Electromechanical Relays As versatile as…
Don’t just sit there! Build something!! Learning to mathematically…
SPICE is a computer program designed to simulate analog electronic…
Arithmetic Sequences An arithmetic sequence is a series of numbers…
This article explains the step-by-step process for determining the…
Single Phase Synchronous Motors Single-phase synchronous motors are…
An important electrical quantity with no equivalent in DC circuits is…
Counting practice: count from zero to thirty-one in binary, octal, and…
This calculator helps you compute the characteristic impedance of an asymmetric stripline
Why learn about Karnaugh maps? The Karnaugh map, like Boolean…
In this collection of hands-on electronics experiments, build and test digital circuits and learn the fundamentals of digital logic circuits, including gates, counters, logic levels, hysteresis, memory, and more.
In this hands-on electronics experiment, build a Schmitt trigger using a 555 timer and learn about hysteresis and the inner workings of the extremely versatile 555 timer IC.
Using an electrical meter safely and efficiently is perhaps the most…
Although many textbooks provide good introductions to digital memory…
In this hands-on AC electronics experiment, build a variable conductor and learn the impact of a metal core placed inside an inductor coil has on the inductance.
Our exploration of thyristors begins with a device called the…
Write an equation describing the precise mathematical relationship…
