Brushless DC motors were developed from conventional brushed DC motors…
Perhaps the most challenging aspect of interpreting ladder diagrams,…
As an electric current is passed through a coil of wire, it creates a…
Don’t just sit there! Build something!! Learning to analyze digital…
A tool designed to convert between units of torque
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.
Just as devices have been made to measure certain physical quantities…
The armature windings of your DC motor will have very low resistance.…
The interlock contacts installed in the previous section’s motor…
The variable reluctance motor is based on the principle that an…
Most AC motors are induction motors. Induction motors are favored due…
A wound rotor induction motor has a stator like a squirrel cage…
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 mathematically…
Generators used in battery-charging systems must be regulated so as to…
Don’t just sit there! Build something!! Learning to mathematically…
A chandelier has five light bulbs in it, and one of them is not…
It is sometimes said regarding electrical safety that, Ït’s not the…
If the ends of a wire loop are attached to two half-circular metal…
A very useful tool for observing rotating objects is a strobe light.…
Instrumentation is a field of study and work centering on measurement…
A diode is an electronics component made from a combination of a…
Things start to get complicated when we need to relate two or more AC…
In this introduction to parallel resistance circuits, we will explain…
Although many textbooks provide good introductions to digital memory…
The Bel is Used to Represent Gain In its simplest form, an…
So far, we’ve studied both S-R and D latch circuits with enable…
Shift registers, like counters, are a form of sequential logic.…
What will happen to the brightness of the light bulb as the iron core…
A microcontroller is a specialized type of digital computer used to…
What is Rectification? Now we come to the most popular application of…
Capacitors do not have a stable “resistance” as conductors…
Research the FCC (Federal Communication Commission) guidelines on…
A tool designed to calculate skin depth based on the conductive material being used and the frequency of the signal.
Logic circuits, whether comprised of electromechanical relays or…
While mention of operational amplifiers typically provokes visions of…
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.
Standing waves at the resonant frequency points of an open- or…
As a first example of useful combinational logic, let’s build a…
In this hands-on AC electronics experiment, you will use an AC voltage source connected to speakers to learn about sound waves and the foundational principle used in noise cancelling headphones.
Limitations of Electromechanical Relays As versatile as…
Conductors lose all of their electrical resistance when cooled to…
How to Create a Band-stop Filter? Also called band-elimination,…
Value of time constant in series RC and RL circuits Time…
This calculator helps you compute the characteristic impedance of a microstrip.
When an alternator produces AC voltage, the voltage switches polarity…
The electrical resistance of a conductor at any temperature may be…
We have the symbols for depletion mode and enhancement mode MOSFETs -…
Stepper Motor vs Servo Motor A stepper motor is a…
Don’t just sit there! Build something!! Learning to mathematically…
To overcome the challenge of creating necessary DC bias voltage for an…
∫f(x) dx Calculus alert! Calculus is a branch of mathematics that…
A common phrase heard in reference to electrical safety goes something…
If we take the equivalent circuit of an SCR and add another external…
Introduction This third volume of the book series Lessons In Electric…
When connecting batteries together to form larger “banks”…
Identify each of these logic gates by name, and complete their…
As lengthy as this chapter has been up to this point, it only begins…
