All About Circuits

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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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Inductance

Inductance

∫f(x) dx Calculus alert! One of the fundamental principles of…


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Oscillator Circuits

Oscillator Circuits

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


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Junction Field-effect Transistors

Junction Field-effect Transistors

The field effect transistor was proposed by Julius Lilienfeld in US…


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Active-mode Operation (BJT)

Active-mode Operation (BJT)

When a transistor is in the fully-off state (like an open switch), it…


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Ohmmeter Design

Ohmmeter Design

Though mechanical ohmmeter (resistance meter) designs are rarely used…


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Safe Meter Usage

Safe Meter Usage

Using an electrical meter safely and efficiently is perhaps the most…


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Advanced Electromagnetism and Electromagnetic Induction

Advanced Electromagnetism and Electromagnetic Induction

∫f(x) dx Calculus alert! Electronic power conversion circuits known…


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Timer Circuits

Timer Circuits

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


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How to Use Thevenin’s Theorem

How to Use Thevenin’s Theorem

This page will walk you step-by-step through the process of…


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The Silicon-Controlled Rectifier (SCR)

The Silicon-Controlled Rectifier (SCR)

Shockley Diodes and Silicon Controlled Rectifiers (SCRs) Shockley…


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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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Synchronous Motors

Synchronous Motors

Single Phase Synchronous Motors Single-phase synchronous motors are…


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Batteries

Batteries

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


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What Are Zener Diodes?

What Are Zener Diodes?

What Is a Zener Diode? A Zener diode is a special type of rectifying…


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Building Resistor Circuits Using Breadboards, Perfboards, and Terminal Strips

Building Resistor Circuits Using Breadboards, Perfboards, and Terminal Strips

Over the course of learning about electricity, you will want to…


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Kirchhoff’s Laws

Kirchhoff’s Laws

Many electronic circuits use what is called a split or a dual power…


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Voltage, Current, and Resistance

Voltage, Current, and Resistance

Voltage is commonly defined as “electrical pressure.” The unit of…


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Harmonics in Polyphase Power Systems

Harmonics in Polyphase Power Systems

In the chapter on mixed-frequency signals, we explored the concept of…


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CMOS Gate Circuitry

CMOS Gate Circuitry

Up until this point, our analysis of transistor logic circuits has…


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Delta and Wye 3-Phase Circuits

Delta and Wye 3-Phase Circuits

Label where each of the following electrical quantities would be found…


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DC Bridge Circuits

DC Bridge Circuits

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


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Ionization (gas-filled) Tubes

Ionization (gas-filled) Tubes

So far, we’ve explored tubes which are totally…


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Complex Voltage and Current Calculations

Complex Voltage and Current Calculations

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


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High-Reliability Circuits

High-Reliability Circuits

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


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Calculus for Electric Circuits

Calculus for Electric Circuits

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


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Decibel Measurements

Decibel Measurements

During the early development of telephone technology, a unit was…


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Practical Power Factor Correction

Practical Power Factor Correction

When the need arises to correct for poor power factor in an AC power…


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Kirchhoff’s Laws

Kirchhoff’s Laws

Many electronic circuits use what is called a split or a dual power…


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Building Resistor Circuits Using Breadboards, Perfboards, and Terminal Strips

Building Resistor Circuits Using Breadboards, Perfboards, and Terminal Strips

Over the course of learning about electricity, you will want to…


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Voltage Multipliers (Doublers, Triplers, Quadruplers, and More)

Voltage Multipliers (Doublers, Triplers, Quadruplers, and More)

A voltage multiplier is a specialized rectifier circuit producing…


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Synchronous Motors

Synchronous Motors

Single Phase Synchronous Motors Single-phase synchronous motors are…


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Algebraic Equation Manipulation for Electric Circuits

Algebraic Equation Manipulation for Electric Circuits

The electrical resistance of a conductor at any temperature may be…


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Beam Power Tubes

Beam Power Tubes

In the beam power tube, the basic four-element structure of the…


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Ohm’s Law Practice Worksheet With Answers

Ohm’s Law Practice Worksheet With Answers

Define the following terms: energy, work, and power.


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Fundamentals of Radio Communication

Fundamentals of Radio Communication

What does the acronym RF stand form, in reference to radio-related…


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Maximum Power Transfer Theorem

Maximum Power Transfer Theorem

The Maximum Power Transfer Theorem is not so much a means of analysis…


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DC Lab - Sensitive Voltage Detector With Audio Output

DC Lab - Sensitive Voltage Detector With Audio Output

In this hands-on electronics experiment, you will construct a voltage detector with adjustable sensitivity and audio output, and you will learn a method for detecting small electrical signals without an oscilloscope.


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Voltage and Current

Voltage and Current

As was previously mentioned, we need more than just a continuous path…


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Bipolar Transistor Biasing Circuits

Bipolar Transistor Biasing Circuits

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


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AC Lab - LC Tank Circuit

AC Lab - LC Tank Circuit

In this hands-on AC electronics experiment, build a parallel resonant inductor-capacitor circuit and learn about oscillation, resonant frequency, and damping.


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Band-stop Filters

Band-stop Filters

How to Create a Band-stop Filter? Also called band-elimination,…


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Inductor Sizing Equation

Inductor Sizing Equation

The Inductance Formula     Wheeler’s formulas for…


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The S-R Latch

The S-R Latch

A bistable multivibrator has two stable states, as indicated by the…


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What is the Difference Between Series and Parallel Circuits?

What is the Difference Between Series and Parallel Circuits?

Circuits consisting of just one battery and one load resistance are…


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Precise Diode Circuits

Precise Diode Circuits

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


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Magnetic Units of Measurement

Magnetic Units of Measurement

In electric circuits, the three basic quantities are voltage (E or V),…


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Op-Amp Practical Considerations

Op-Amp Practical Considerations

Real operational amplifiers have some imperfections compared to an…


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Thyristors

Thyristors

Thyristors are a broad classification of bipolar-conducting…


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Data Flow

Data Flow

Buses and networks are designed to allow communication to occur…


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Building Series-Parallel Resistor Circuits

Building Series-Parallel Resistor Circuits

Once again, when building battery/resistor circuits, the student or…


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DC Motor Control Circuits

DC Motor Control Circuits

How is it possible to electrically measure the torque output by a…


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Microstrip Inductance Calculator

Microstrip Inductance Calculator

This calculator computes the inductance of a microstrip etched on a PCB.


Tools

Electromagnetic Induction

Electromagnetic Induction

While Oersted’s surprising discovery of electromagnetism paved…


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Slope (integrating) ADC

Slope (integrating) ADC

So far, we’ve only been able to escape the sheer volume of…


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Shift Registers

Shift Registers

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


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Physiological Effects of Electricity

Physiological Effects of Electricity

Most of us have experienced some form of electric “shock,”…


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Permeability and Saturation

Permeability and Saturation

The nonlinearity of material permeability may be graphed for better…


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Input and Output Coupling

Input and Output Coupling

To overcome the challenge of creating necessary DC bias voltage for an…


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Emergency Response

Emergency Response

Despite lock-out/tag-out procedures and multiple repetitions of…


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