All About Circuits

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Parallel Resistor Calculator

Parallel Resistor Calculator

Calculate the equivalent resistance of up to six resistors in parallel with ease while learning how to calculate resistance in parallel and the parallel resistance formula.


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Wound Rotor Induction Motors

Wound Rotor Induction Motors

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


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Selsyn (Synchro) Motors

Selsyn (Synchro) Motors

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


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Instrumentation Amplifier Gain Calculator

Instrumentation Amplifier Gain Calculator

The instrumentation amplifier calculator will assist in the design and analysis of a conventional instrumentation amplifier circuit by calculating the required resistor values and gain.


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Synchronous Motors

Synchronous Motors

Single Phase Synchronous Motors Single-phase synchronous motors are…


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Tesla Polyphase Induction Motors

Tesla Polyphase Induction Motors

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


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Lorentz Force Calculator

Lorentz Force Calculator

This calculator will determine the combined Lorentz force exerted on a charged particle moving through both an electric field and a magnetic field.


Tools

Wheatstone Bridge Calculator

Wheatstone Bridge Calculator

This calculator helps determine the resistance of a variable resistor within a Wheatstone bridge circuit or the differential voltage created across the bridge terminals.


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Flash ADC

Flash ADC

Also called the parallel A/D converter, this circuit is the simplest…


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Reluctance Motor

Reluctance Motor

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


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AC Commutator Motors

AC Commutator Motors

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


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Other Specialized Motors

Other Specialized Motors

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


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Stepper Motors

Stepper Motors

Stepper Motor vs Servo Motor A stepper motor is a…


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Brushless DC Motor

Brushless DC Motor

Brushless DC motors were developed from conventional brushed DC motors…


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What is Alternating Current (AC)?

What is Alternating Current (AC)?

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


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AC Instrumentation Transducers

AC Instrumentation Transducers

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


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EIRP Calculator

EIRP Calculator

A helpful tool for computing the Effective Isotropic Radiated Power (EIRP) of an antenna


Tools

TTL Logic Gates

TTL Logic Gates

Counting practice: count from zero to thirty-one in binary, octal, and…


Worksheets - Security

Performance-Based Assessments for Basic Electricity Competencies

Performance-Based Assessments for Basic Electricity Competencies

(Template)


Worksheets - Security

Converting Truth Tables into Boolean Expressions

Converting Truth Tables into Boolean Expressions

In designing digital circuits, the designer often begins with a truth…


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Transistors, junction field-effect (JFET)

Transistors, junction field-effect (JFET)

Note that the direction of the arrow at the gate indicates the…


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Multimeters

Multimeters

Seeing as how a common meter movement can be made to function as a…


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Diode Ratings

Diode Ratings

In addition to forward voltage drop (Vf) and peak inverse voltage…


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Oscillator Circuits

Oscillator Circuits

Phase shift oscillator. R1C1, R2C2, and R3C3 each provide 60° of…


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BJT Quirks

BJT Quirks

An ideal transistor would show 0% distortion in amplifying a signal.…


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BJT Amplifier Troubleshooting

BJT Amplifier Troubleshooting

As an instructor of electronics, I am called upon frequently to help…


Worksheets - Security

Analog Lab - Introduction

Analog Lab - Introduction

In this series of hands-on electronics experiments, build analog circuits, including amplifiers, comparators, oscillators, and more. Following the step-by-step instructions will help you understand and appreciate analog systems.


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What Are Electric Circuits?

What Are Electric Circuits?

You might have been wondering how charges can continuously flow in a…


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The Common-collector Amplifier

The Common-collector Amplifier

Our next transistor configuration to study is a bit simpler for gain…


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Bipolar Junction Transistor (BJT) theory

Bipolar Junction Transistor (BJT) theory

Don’t just sit there! Build something!! Learning to mathematically…


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Ammeter Design

Ammeter Design

Ammeters Measure Electrical Current A meter designed to measure…


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555 Timer Astable Oscillator Circuit

555 Timer Astable Oscillator Circuit

In an astable circuit, the output voltage alternates between VCC and 0 volts on a continuous basis. This calculator will help you design an oscillator using a 555 timer IC.


Tools

Magnetic Units of Measurement

Magnetic Units of Measurement

If the burden of two systems of measurement for common quantities…


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Microprocessor Programming

Microprocessor Programming

What is the difference between a JMP (“jump”) instruction and a…


Worksheets - Security

AC Metrology

AC Metrology

In power distribution systems, it is very important to be able to…


Worksheets - Security

Digital Lab - 7-segment LED Display

Digital Lab - 7-segment LED Display

In this hands-on electronics experiment, you will control a 7-segment binary-coded decimal (BCD) display and learn about active-low and active-high logic inputs.


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