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Selsyn (Synchro) Motors

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

Synchronous Motors

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Single Phase Synchronous Motors Single-phase synchronous motors are…

What is Alternating Current (AC)?

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

Wound Rotor Induction Motors

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

Reluctance Motor

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

AC Instrumentation Transducers

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

Brushless DC Motor

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Brushless DC motors were developed from conventional brushed DC motors…

Stepper Motors

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Stepper Motor vs Servo Motor A stepper motor is a…

Tesla Polyphase Induction Motors

Textbook

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

AC Commutator Motors

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

Other Specialized Motors

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

The Shockley Diode

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Our exploration of thyristors begins with a device called the…

Systems of Numeration

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Roman Numerals The Romans devised a system that was a substantial…

Fuses

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Normally, the ampacity rating of a conductor is a circuit design…

Strain Gauges

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If a strip of conductive metal is stretched, it will become skinnier…

Introduction to Digital Integrated Circuits

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Digital circuits are circuits dealing with signals restricted to the…

Branch Current Method

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The first and most straightforward network analysis technique is…

Complex Voltage and Current Calculations

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There are circumstances when you may need to analyze a DC reactive…

Peak Detector

Textbook

A peak detector is a series connection of a diode and a…

Other Diode Technologies

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Varicap or varactor diodes A variable capacitance diode is known as a…

Right Triangle Trigonometry

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  A right triangle is defined as having one angle precisely…

Boolean Algebraic Identities

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In mathematics, an identity is a statement true for all possible…

The Antiderivative (Indefinite Integral)

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  Notice something important here: taking the derivative of f(x)…

Decibels Equations

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  RELATED WORKSHEETS: Decibel Measurements Worksheet

Bridge Circuits

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No text on electrical metering could be called complete without a…

Batteries

Worksheets - Raspberry Pi

If I wanted to build a battery-powered electric drill, would it be…

Three-phase Transformer Circuits

Textbook

Since three-phase is used so often for power distribution systems, it…

Electrons and “holes’’

Textbook

Pure semiconductors are relatively good insulators as compared with…

Display Tubes

Textbook

In addition to performing tasks of amplification and switching, tubes…

Capacitor Quirks

Textbook

As with inductors, the ideal capacitor is a purely reactive device,…

Introduction to Junction Field-effect Transistors (JFET)

Textbook

A transistor is a linear semiconductor device that controls current…