All About Contactors When a relay is used to switch a large amount of…
Perhaps the most challenging aspect of interpreting ladder diagrams,…
Most students of electricity begin their study with what is known as…
Just as devices have been made to measure certain physical quantities…
Project Parts and Materials Automotive alternator (one required, but…
Generators used in battery-charging systems must be regulated so as to…
A three-phase motor may be run from a single-phase power source.…
Single Phase Synchronous Motors Single-phase synchronous motors are…
Don’t just sit there! Build something!! Learning to mathematically…
A wound rotor induction motor has a stator like a squirrel cage…
Solid-state switching circuits usually keep their constituent…
Electromechanical watt-hour meters use an aluminum disk that is spun…
Explain the operation of this “H-bridge” motor control circuit: At…
How is it possible to electrically measure the torque output by a…
Stepper Motor vs Servo Motor A stepper motor is a…
The interlock contacts installed in the previous section’s motor…
If the ends of a wire loop are attached to two half-circular metal…
Most AC motors are induction motors. Induction motors are favored due…
A very useful tool for observing rotating objects is a strobe light.…
The variable reluctance motor is based on the principle that an…
After the introduction of the DC electrical distribution system by…
A calculator for computing several parameters needed in the design of a flyback switch mode regulator
A tool designed to convert between units of torque
PARTS AND MATERIALS AC power source: 120VAC Capacitor, 3.3 µF…
Solid-state switching circuits usually keep their constituent…
All About Contactors When a relay is used to switch a large amount of…
Explain the operation of this “H-bridge” motor control circuit: At…
Don’t just sit there! Build something!! Learning to analyze digital…
The armature windings of your DC motor will have very low resistance.…
Brushless DC motors were developed from conventional brushed DC motors…
Most AC motors are induction motors. Induction motors are favored due…
The variable reluctance motor is based on the principle that an…
A three-phase motor may be run from a single-phase power source.…
Charles Proteus Steinmetz’s first job after arriving in America…
Read the following quotation, and then research the term…
It is sometimes said regarding electrical safety that, Ït’s not the…
Pulse Width Modulation (PWM) uses digital signals to control power…
A tool designed to calculate the maximum speed, minimum time per step and maximum power of a stepper motor
PARTS AND MATERIALS One 12AX7 dual triode vacuum tube Two power…
Don’t just sit there! Build something!! Learning to mathematically…
A calculator for computing several parameters needed in the design of a flyback switch mode regulator
The expression of numerical quantities is something we tend to take…
When connecting batteries together to form larger “banks”…
Don’t just sit there! Build something!! Learning to mathematically…
∫f(x) dx Calculus alert! Calculus is a branch of mathematics that…
Don’t just sit there! Build something!! Learning to mathematically…
What Is an XOR Gate? One element conspicuously missing from the set of…
Remember that vectors are mathematical objects just like numbers on a…
Don’t just sit there! Build something!! Learning to mathematically…
PARTS AND MATERIALS Calculator (or pencil and paper for doing…
How much voltage is there between the following pairs of points in…
Explain the operation of this “H-bridge” motor control circuit: At…
Learn the Power Formula We’ve seen the formula for determining…
Also called the parallel A/D converter, this circuit is the simplest…
Don’t just sit there! Build something!! Learning to mathematically…
Mercury Standard Cell Back in the early days of electrical measurement…
What is Split-Phase Power Systems? Split-phase power systems achieve…
A helpful analogy for understanding divided feedback amplifier…
Decibel as Absolute Unit of Power It is also possible to use the…
Shown here is the schematic symbol for a resistor: What is the purpose…
