AC Motors Perhaps the most important benefit of polyphase AC power…
A tool designed to convert between units of torque
Perhaps the most challenging aspect of interpreting ladder diagrams,…
Just as devices have been made to measure certain physical quantities…
Explain the operation of this “H-bridge” motor control circuit: At…
Normally, the rotor windings of a wound rotor induction motor are…
Read the following quotation, and then research the term…
A tool designed to calculate the maximum speed, minimum time per step and maximum power of a stepper motor
Calculate the voltage output by the secondary winding of a transformer…
Shaded Pole Induction Motor An easy way to provide starting torque to…
The interlock contacts installed in the previous section’s motor…
All About Contactors When a relay is used to switch a large amount of…
Most AC motors are induction motors. Induction motors are favored due…
This calculator uses Faraday's and Lenz's laws to calculate the magnitude and polarity of the induced electromotive force (EMF) caused by a change in magnetic flux through a closed-loop coil.
In this hands-on electronics experiment, you will use a potentiometer as a variable resistor to control the speed of a motor and learn how to connect a potentiometer as a rheostat.
Don’t just sit there! Build something!! Learning to analyze digital…
Stepper Motor vs Servo Motor A stepper motor is a…
How is it possible to electrically measure the torque output by a…
A three-phase motor may be run from a single-phase power source.…
In this hands-on AC electronics experiment, build a large AC permanent capacitor split-phase induction motor and learn the principles of AC induction motor function.
One of the more fascinating applications of electricity is in the…
We have the symbols for depletion mode and enhancement mode MOSFETs -…
Perhaps the most ingenious technique was that of the delay line. A…
A circuit with an inductor (L) and capacitor (C) connected in parallel or series will have a resonant frequency at which their impedances are equal. Given two of the three values—inductance, capacitance, or resonant frequency—this tool will calculate the missing third variable.
This tool calculates the cutoff frequency of a rectangular waveguide
In this hands-on electronics experiment, you will create a battery from a potato (yes! a potato) and learn about the relationship between chemical energy and electric energy.
This tool calculates the cutoff frequency of a circular waveguide
In this hands-on electronics experiment, you will build a red LED flasher and learn a useful application of the versatile 555 timer IC.
Although transistor switching circuits operate without bias, it is…
Anyone who’s studied geometry should be familiar with the…
This calculator will determine the correct antenna downtilt angle given the heights of the antennas and distance between them.
The use of variable voltage for instrumentation signals seems a rather…
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.
In many disciplines of science and engineering, very large and very…
Most ohmmeters of the design shown in the previous section utilize a…
Write the following exponential expressions in expanded form: 101 =…
Boolean algebra finds its most practical use in the simplification of…
A waveguide is a special form of transmission line consisting of a…
∫f(x) dx Calculus alert! Electronic power conversion circuits known…