All About Circuits

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Resonance

Resonance

The Q factor of a series inductive circuit is given by the following…


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Brushless DC Motor

Brushless DC Motor

Brushless DC motors were developed from conventional brushed DC motors…


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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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SPICE Models

SPICE Models

The SPICE circuit simulation program provides for modeling diodes in…


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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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Networks and Busses

Networks and Busses

The wires between the tank and the monitoring location is  called…


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Specific Troubleshooting Techniques

Specific Troubleshooting Techniques

After applying some of the general troubleshooting tips to narrow the…


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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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Single-phase Induction Motors

Single-phase Induction Motors

A three-phase motor may be run from a single-phase power source.…


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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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Boolean Algebra

Boolean Algebra

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


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Polyphase Motor Design

Polyphase Motor Design

AC Motors Perhaps the most important benefit of polyphase AC power…


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Safety Grounding

Safety Grounding

In simple AC power systems, one of the two conductors is typically…


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DC Motor Theory

DC Motor Theory

If the ends of a wire loop are attached to two half-circular metal…


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Millman’s Theorem

Millman’s Theorem

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


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Broadside Coupled Trace Inductance Calculator

Broadside Coupled Trace Inductance Calculator

This calculator helps you compute the inductance of a broadside coupled trace.


Tools

Digital Ramp ADC

Digital Ramp ADC

Also known as the stairstep-ramp, or simply counter A/D converter,…


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Amplifier Gain

Amplifier Gain

The Voltage Gain Because amplifiers have the ability to increase the…


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Clipper and Clamper Circuits

Clipper and Clamper Circuits

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


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Negative Feedback OpAmp Circuits

Negative Feedback OpAmp Circuits

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


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Table (portrait view)

Table (portrait view)

  Periodic table of chemical elements.


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Decibel Calculator

Decibel Calculator

This calculator will convert voltage or power gains into decibels. Enter one of the three values and the calculator will output the other two.


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High Voltage Ohmmeters

High Voltage Ohmmeters

Most ohmmeters of the design shown in the previous section utilize a…


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Some Examples with AC Circuits

Some Examples with AC Circuits

Let’s connect three AC voltage sources in series and use complex…


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Phasing

Phasing

Since transformers are essentially AC devices, we need to be aware of…


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Design Project: Pulse-Width Modulation (PWM) Signal Generator

Design Project: Pulse-Width Modulation (PWM) Signal Generator

What shape of voltage waveform would you expect to measure (using an…


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Conventional Transistor Overview and Special Transistors

Conventional Transistor Overview and Special Transistors

A microcontroller is a specialized type of digital computer used to…


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Series LED Resistor Calculator

Series LED Resistor Calculator

This series LED resistance calculator is perfect for when you have a single LED or a number of the same color of LEDs in series and need to know which resistor you should use.


Tools

Introduction to SPICE

Introduction to SPICE

“With Electronics Workbench, you can create circuit schematics…


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Power Measurement

Power Measurement

Power measurement in AC circuits can be quite a bit more complex than…


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Simple Series Resonance

Simple Series Resonance

A similar effect happens in series inductive/capacitive circuits. When…


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Factors Affecting Inductance

Factors Affecting Inductance

There are four basic factors of inductor construction determining the…


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Metric Prefixes and Unit Conversions

Metric Prefixes and Unit Conversions

Metric Prefixes   Yotta = 1024 Symbol: Y Zetta = 1021 Symbol: Z…


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Waveguide Calculator (Rectangular)

Waveguide Calculator (Rectangular)

This tool calculates the cutoff frequency of a rectangular waveguide


Tools

TTL NAND and AND gates

TTL NAND and AND gates

Suppose we altered our basic open-collector inverter circuit, adding a…


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Mesh Current Method (Loop Current Method)

Mesh Current Method (Loop Current Method)

This page provides a step-by-step introduction to using the mesh…


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Non-right Triangle Trigonometry

Non-right Triangle Trigonometry

The Law of Sines (for any triangle) The Law of Cosines (for any…


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Series Resistor-Inductor Circuits

Series Resistor-Inductor Circuits

In the previous section, we explored what would happen in simple…


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The Common-gate Amplifier (IGFET)

The Common-gate Amplifier (IGFET)


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Millman’s Theorem

Millman’s Theorem

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


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Op-Amp Data

Op-Amp Data

Parametric data for all semiconductor op-amp models except the CA3130…


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Mutual Inductance

Mutual Inductance

When an electric current is passed through a coil of wire, what…


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Microprocessor Programming

Microprocessor Programming

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


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Data Flow

Data Flow

Buses and networks are designed to allow communication to occur…


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Biasing Techniques (BJT)

Biasing Techniques (BJT)

In the common-emitter section of this chapter, we saw a SPICE analysis…


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Trigonometry for AC Circuits

Trigonometry for AC Circuits

Identify which trigonometric functions (sine, cosine, or tangent) are…


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Karnaugh Maps, Truth Tables, and Boolean Expressions

Karnaugh Maps, Truth Tables, and Boolean Expressions

Who Developed the Karnaugh Map? Maurice Karnaugh, a…


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Rules for Antiderivatives

Rules for Antiderivatives

Constant Rule     Rule of Sums     Rule of…


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AC Lab - Build a Transformer

AC Lab - Build a Transformer

In this hands-on AC electronics experiment, build a simple transformer and learn some important transformer fundamentals including voltage step-up and step-down.


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Intro Lab - How to Use a Voltmeter to Measure Voltage

Intro Lab - How to Use a Voltmeter to Measure Voltage

In this hands-on introduction to electronics, you will experiment with a multimeter and learn how to measure voltage using the voltmeter function.


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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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DC Lab - Introduction

DC Lab - Introduction

In this series of hands-on electronics experiments, you will build direct current (DC) circuits and learn fundamental electrical engineering circuit concepts.


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Computational Circuits

Computational Circuits

When someone mentions the word “computer,” a digital…


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Mutual Inductance and Basic Operation

Mutual Inductance and Basic Operation

Behaviors of Inductors wrapped around a Conductive Core Suppose we…


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