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AC Commutator Motors

Textbook

Charles Proteus Steinmetz’s first job after arriving in America…

Selsyn (Synchro) Motors

Textbook

Normally, the rotor windings of a wound rotor induction motor are…

Reluctance Motor

Textbook

The variable reluctance motor is based on the principle that an…

Stepper Motors

Textbook

Stepper Motor vs Servo Motor A stepper motor is a…

Synchronous Motors

Textbook

Single Phase Synchronous Motors Single-phase synchronous motors are…

Wound Rotor Induction Motors

Textbook

A wound rotor induction motor has a stator like a squirrel cage…

Other Specialized Motors

Textbook

Shaded Pole Induction Motor An easy way to provide starting torque to…

What is Alternating Current (AC)?

Textbook

Most students of electricity begin their study with what is known as…

AC Instrumentation Transducers

Textbook

Just as devices have been made to measure certain physical quantities…

Brushless DC Motor

Textbook

Brushless DC motors were developed from conventional brushed DC motors…

Tesla Polyphase Induction Motors

Textbook

Most AC motors are induction motors. Induction motors are favored due…

555 Timer Astable Circuit

Tools

In an astable circuit, the output voltage alternates between VCC and 0 volts on a continuous basis.

Polyphase Power Systems

Worksheets - Security

Explain the difference between a balanced polyphase system and an…

Simple Circuits

Worksheets - Security

Shown here is the schematic symbol for a resistor: What is the purpose…

Kirchhoff’s Current Law (KCL)

Textbook

What Is Kirchhoff’s Current Law? Kirchhoff’s Current Law,…

Voltmeter Impact on Measured Circuit

Textbook

Every meter impacts the circuit it is measuring to some extent, just…

Step-up and Step-down Transformers

Textbook

So far, we’ve observed simulations of transformers where the…

Op-Amp Voltage and Gain Calculator

Tools

A calculator for computing the gain and output voltage of an operational amplifier

Superconducting Devices

Textbook

Superconducting devices, though not widely used, have some unique…

Ohm’s Law

Textbook

PARTS AND MATERIALS Calculator (or pencil and paper for doing…

Venn Diagrams and Sets

Textbook

Mathematicians use Venn diagrams to show the logical relationships of…

Component Modeling

Worksheets - Security

When plotted on a curve tracer, the characteristic curve for a normal…

Valence and Crystal Structure

Textbook

Valence: The electrons in the outermost shell, or valence shell, are…

Contact “Normal” State and Make/Break Sequence

Textbook

Any kind of switch contact can be designed so that the contacts…

Analysis Options

Textbook

AC ANALYSIS: General form: .ac [curve] [points] [start] [final]…

Stripline Crosstalk Calculator

Tools

This tool is designed to calculate cross-talk coefficient and coupled voltage for a stripline

A Very Simple Computer

Textbook

PARTS AND MATERIALS Three batteries, each one with a different voltage…

The Silicon-Controlled Switch (SCS)

Textbook

If we take the equivalent circuit of an SCR and add another external…

Low-pass Filters

Textbook

By definition, a low-pass filter is a circuit offering easy passage to…

Power Density Calculator

Tools

A tool designed to calculate the power density of an antenna

Microstrip Patch Antenna Calculator

Tools

This tool calculates the dimensions of the microstrip patch antenna given the desired operating frequency.