Explain the operation of this “H-bridge” motor control circuit: At…
The interlock contacts installed in the previous section’s motor…
Perhaps the most challenging aspect of interpreting ladder diagrams,…
Single Phase Synchronous Motors Single-phase synchronous motors are…
Pulse Width Modulation (PWM) uses digital signals to control power…
Most students of electricity begin their study with what is known as…
Don’t just sit there! Build something!! Learning to mathematically…
Stepper Motor vs Servo Motor A stepper motor is a…
Solid-state switching circuits usually keep their constituent…
Just as devices have been made to measure certain physical quantities…
A very useful tool for observing rotating objects is a strobe light.…
How is it possible to electrically measure the torque output by a…
Most AC motors are induction motors. Induction motors are favored due…
If an electric current is passed through this wire, which direction…
A three-phase motor may be run from a single-phase power source.…
At first it may seem pointless to have the four buffer gates following…
A wound rotor induction motor has a stator like a squirrel cage…
If the ends of a wire loop are attached to two half-circular metal…
The armature windings of your DC motor will have very low resistance.…
How is it possible to electrically measure the torque output by a…
PARTS AND MATERIALS One 12AX7 dual triode vacuum tube Two power…
A chandelier has five light bulbs in it, and one of them is not…
After the introduction of the DC electrical distribution system by…
Project Parts and Materials Automotive alternator (one required, but…
Just as devices have been made to measure certain physical quantities…
Perhaps the most challenging aspect of interpreting ladder diagrams,…
A very useful tool for observing rotating objects is a strobe light.…
Solid-state switching circuits usually keep their constituent…
Single Phase Synchronous Motors Single-phase synchronous motors are…
A three-phase motor may be run from a single-phase power source.…
A tool designed to convert between units of torque
Read the following quotation, and then research the term…
All About Contactors When a relay is used to switch a large amount of…
As an electric current is passed through a coil of wire, it creates a…
Explain the operation of this “H-bridge” motor control circuit: At…
Normally, the rotor windings of a wound rotor induction motor are…
Starting with circle A in a rectangular A’ universe in figure…
Convert between Celsius, Fahrenheit and Kelvin
Pure resistive AC circuit: voltage and current are in phase. …
When an alternator produces AC voltage, the voltage switches polarity…
Reactive Power We know that reactive loads such as inductors and…
Define the following terms: energy, work, and power.
Note: this is a very unique and useful property of e. As in…
Generally speaking, how many “time constants” worth of time does…
PARTS AND MATERIALS One NPN transistor—model 2N2222 or 2N3403…
This calculator will solve for either distance, time, or speed given two of the three parameters.
Computers can be powerful tools if used properly, especially in the…
Impedance Matching Because transformers can step voltage and current…
If a sinusoidal voltage is applied to an impedance with a phase angle…
This calculator will determine the square root, cube root, or nth root of a given number, x.
Because capacitors store energy in the form of an electric field, they…
How to Create Band-pass Filter There are applications where a…
If we take the equivalent circuit of an SCR and add another external…
The expression of numerical quantities is something we tend to take…
If I wanted to build a battery-powered electric drill, would it be…
