Generators used in battery-charging systems must be regulated so as to…
Brushless DC motors were developed from conventional brushed DC motors…
Most AC motors are induction motors. Induction motors are favored due…
Charles Proteus Steinmetz’s first job after arriving in America…
Stepper Motor vs Servo Motor A stepper motor is a…
Normally, the rotor windings of a wound rotor induction motor are…
After the introduction of the DC electrical distribution system by…
Just as devices have been made to measure certain physical quantities…
Explain the operation of this “H-bridge” motor control circuit: At…
Most students of electricity begin their study with what is known as…
Single Phase Synchronous Motors Single-phase synchronous motors are…
If the ends of a wire loop are attached to two half-circular metal…
Electromechanical watt-hour meters use an aluminum disk that is spun…
The variable reluctance motor is based on the principle that an…
A three-phase motor may be run from a single-phase power source.…
If an electric current is passed through this wire, which direction…
A three-phase motor may be run from a single-phase power source.…
AC Motors Perhaps the most important benefit of polyphase AC power…
A tool designed to convert between units of torque
Don’t just sit there! Build something!! Learning to mathematically…
Shaded Pole Induction Motor An easy way to provide starting torque to…
Electromechanical watt-hour meters use an aluminum disk that is spun…
Generators used in battery-charging systems must be regulated so as to…
Read the following quotation, and then research the term…
Project Parts and Materials Automotive alternator (one required, but…
It is sometimes said regarding electrical safety that, Ït’s not the…
Pulse Width Modulation (PWM) uses digital signals to control power…
Brushless DC motors were developed from conventional brushed DC motors…
Charles Proteus Steinmetz’s first job after arriving in America…
PARTS AND MATERIALS AC power source: 120VAC Capacitor, 3.3 µF…
Don’t just sit there! Build something!! Learning to mathematically…
All About Contactors When a relay is used to switch a large amount of…
Normally, the rotor windings of a wound rotor induction motor are…
The armature windings of your DC motor will have very low resistance.…
Most AC motors are induction motors. Induction motors are favored due…
Just as devices have been made to measure certain physical quantities…
Although the prime intent of octal and hexadecimal numeration systems…
If I needed to describe the distance between two cities, I could…
PARTS AND MATERIALS Sensitive meter movement (Radio Shack catalog #…
The atoms in insulating materials have very tightly-bound electrons,…
This calculator computes the inductance of a microstrip etched on a PCB.
By now you should be well aware of the correlation between electrical…
Suppose we wished to measure the resistance of some component located…
Determine if the light bulb will de-energize for each of the following…
Solving for x in a given polynomial equation “ax2 + bx + c…
PARTS AND MATERIALS Several 10 kΩ resistors One 10 kΩ…
The electrons of different types of atoms have different degrees of…
A common class of operation used in radio-frequency (RF) amplifier…
If we were to connect two inverter gates together so that the output…
One of the more fascinating applications of electricity is in the…
Analog circuits are circuits dealing with signals free to vary from…
The Law of Sines (for any triangle) The Law of Cosines (for any…
Shown here is the schematic symbol for a resistor: What is the purpose…
Long before the advent of digital electronic technology, computers…
When a transistor is in the fully-off state (like an open switch), it…
Perhaps the most challenging aspect of interpreting ladder diagrams,…
