All About Circuits

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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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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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Selsyn (Synchro) Motors

Selsyn (Synchro) Motors

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


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Flash ADC

Flash ADC

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


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Synchronous Motors

Synchronous Motors

Single Phase Synchronous Motors Single-phase synchronous motors are…


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Stepper Motors

Stepper Motors

Stepper Motor vs Servo Motor A stepper motor is a…


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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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Other Specialized Motors

Other Specialized Motors

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


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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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AC Commutator Motors

AC Commutator Motors

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


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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.


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.


Tools

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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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.


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Brushless DC Motor

Brushless DC Motor

Brushless DC motors were developed from conventional brushed DC motors…


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Reluctance Motor

Reluctance Motor

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


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An Analogy for Divided Feedback

An Analogy for Divided Feedback

A helpful analogy for understanding divided feedback amplifier…


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Precise Diode Circuits

Precise Diode Circuits

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


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Parallel Resistor-Capacitor Circuits

Parallel Resistor-Capacitor Circuits

Using the same value components in our series example circuit, we will…


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Design Project: Audio Power Amplifier

Design Project: Audio Power Amplifier

Explain how the microphone in your amplifier works. How, exactly, does…


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Wire Stripline Impedance Calculator

Wire Stripline Impedance Calculator

A calculator for computing the impedance of a wire stripline.


Tools

From Electric to Electronic

From Electric to Electronic

Introduction This third volume of the book series Lessons In Electric…


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Coefficients of Specific Resistance

Coefficients of Specific Resistance

Specific resistance at 20o C:  Material Element/Alloy ohm-cmil/ft…


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Potential Pitfalls

Potential Pitfalls

Fallacious reasoning and poor interpersonal relations account for more…


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Logarithms

Logarithms

Definition of a Logarithm     “log” denotes a…


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The DIAC

The DIAC

Like all diodes, Shockley diodes are unidirectional devices; that is,…


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Power Density Calculator

Power Density Calculator

A tool designed to calculate the power density of an antenna


Tools

Design Project: Signal Generator

Design Project: Signal Generator

Explain the principle of operation for the particular integrated…


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More on AC “polarity”

More on AC “polarity”

Complex numbers are useful for AC circuit analysis because they…


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Electrical Energy Calculator

Electrical Energy Calculator

This calculator will determine the instantaneous energy, sustained energy, and power consumed by an electrical system given two of the three electrical parameters (voltage, current, or resistance) and the time.


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Passive Integrator and Differentiator Circuits

Passive Integrator and Differentiator Circuits

∫f(x) dx Calculus alert! Calculus is a branch of mathematics that…


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Basic Troubleshooting Strategies

Basic Troubleshooting Strategies

A chandelier has five light bulbs in it, and one of them is not…


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Coil Inductance Calculator

Coil Inductance Calculator

This calculator computes the inductance of a wire coil.


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Inductor Transient Response

Inductor Transient Response

Inductors have the exact opposite characteristics of capacitors.…


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Time Constant Circuits

Time Constant Circuits

Generally speaking, how many “time constants” worth of time does…


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