All About Circuits

Latest Analog Education

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Parallel R, L, and C

Parallel R, L, and C

We can take the same components from the series circuit and rearrange…


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Time-delay Relays

Time-delay Relays

What are Time-Delay Relays? Some relays are constructed with a kind of…


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Junction field-effect transistors (JFET)

Junction field-effect transistors (JFET)

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


Worksheets - Analog

Shift Registers

Shift Registers

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


Worksheets - Analog

Frequency and Phase Measurement

Frequency and Phase Measurement

An important electrical quantity with no equivalent in DC circuits is…


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Solving for Unknown Time

Solving for Unknown Time

Sometimes it is necessary to determine the length of time that a…


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High-Reliability Circuits

High-Reliability Circuits

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


Worksheets - Analog

From Electric to Electronic

From Electric to Electronic

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


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Performance-Based Assessments for Digital Circuit Competencies

Performance-Based Assessments for Digital Circuit Competencies

(Template)


Worksheets - Analog

Resistance

Resistance

The circuit in the previous section is not a very practical one. In…


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Performance-Based Assessments for Semiconductor Circuit Competencies

Performance-Based Assessments for Semiconductor Circuit Competencies


Worksheets - Analog

Series DC Circuits Practice Worksheet with Answers

Series DC Circuits Practice Worksheet with Answers

In this circuit, three resistors receive the same amount of current (4…


Worksheets - Analog

Divided Feedback

Divided Feedback

If we add a voltage divider to the negative feedback wiring so that…


Textbook

Circuits and the Speed of Light

Circuits and the Speed of Light

Suppose we had a simple one-battery, one-lamp circuit controlled by a…


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Logic Simplification With Karnaugh Maps

Logic Simplification With Karnaugh Maps

The logic simplification examples that we have done so far could have…


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Electrical Connections

Electrical Connections

What, exactly, is necessary to establish electrical continuity between…


Worksheets - Analog

AC Phase

AC Phase

Things start to get complicated when we need to relate two or more AC…


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Microstrip Crosstalk Calculator

Microstrip Crosstalk Calculator

This tool is designed to calculate cross-talk coefficient and coupled voltage for a microstrip.


Tools

Skin Depth Calculator

Skin Depth Calculator

A tool designed to calculate skin depth based on the conductive material being used and the frequency of the signal.


Tools

Analog and Digital Signals

Analog and Digital Signals

Instrumentation is a field of study and work centering on measurement…


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AC Bridge Circuits

AC Bridge Circuits

As we saw with DC measurement circuits, the circuit configuration…


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Oscillator Circuits

Oscillator Circuits

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


Worksheets - Analog

Switched Capacitor Circuitry

Switched Capacitor Circuitry

Write an equation describing the precise mathematical relationship…


Worksheets - Analog

Four-Channel Audio Mixer

Four-Channel Audio Mixer

A very common misconception students have about potentiometers is the…


Worksheets - Analog

Introduction to Junction Field-effect Transistors (JFET)

Introduction to Junction Field-effect Transistors (JFET)

A transistor is a semiconductor device that controls current with the…


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Specific Resistance

Specific Resistance

Designing Wire Resistance Conductor ampacity rating is a crude…


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Bipolar Junction Transistor (BJT) theory

Bipolar Junction Transistor (BJT) theory

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


Worksheets - Analog

Si Lab - A Simple BJT Current Mirror Circuit

Si Lab - A Simple BJT Current Mirror Circuit

In this hands-on semiconductor electronics experiment, build a simple current mirror using matched bipolar junction transistors (BJTs) and learn about current mirror circuit limitations, the temperature dependence of BJTs, and thermal runaway.


Textbook

Contributors (16)

Contributors (16)

Contributors to this chapter are listed in chronological order of…


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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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Numbers and Symbols

Numbers and Symbols

The expression of numerical quantities is something we tend to take…


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Kirchhoff’s Voltage Law (KVL)

Kirchhoff’s Voltage Law (KVL)

What is Kirchhoff’s Voltage Law (KVL)? The principle known as…


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General Troubleshooting Tips

General Troubleshooting Tips

When first approaching a failed or otherwise misbehaving system, the…


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Peak Voltage Calculator

Peak Voltage Calculator

The peak voltage calculator calculates peak voltage values from the peak-to-peak voltage, RMS voltage, or average voltage.


Tools

Optical Data Communication

Optical Data Communication

A modern alternative to sending (binary) digital information via…


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The R/2R DAC (Digital-to-Analog Converter)

The R/2R DAC (Digital-to-Analog Converter)

The R/2R DAC circuit is an alternative to the binary-weighted-input…


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Analog Lab - Precision Voltage Follower Using an Op Amp

Analog Lab - Precision Voltage Follower Using an Op Amp

In this hands-on electronics experiment, you will build an op amp voltage follower and learn about negative feedback in operational amplifier circuits.


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Three-phase Transformer Circuits

Three-phase Transformer Circuits

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


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Specific Resistance

Specific Resistance

Designing Wire Resistance Conductor ampacity rating is a crude…


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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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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.


Textbook

Basic Logic Gate Troubleshooting

Basic Logic Gate Troubleshooting

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


Worksheets - Analog

Multiplexers and Demultiplexers

Multiplexers and Demultiplexers

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


Worksheets - Analog

Review of R, X, and Z (Resistance, Reactance and Impedance)

Review of R, X, and Z (Resistance, Reactance and Impedance)

Before we begin to explore the effects of resistors, inductors, and…


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Introduction to Operational Amplifiers (Op-amps)

Introduction to Operational Amplifiers (Op-amps)

What is an Operational Amplifier (Op-amp)? Operational Amplifiers,…


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Multiple-input Gates

Multiple-input Gates

The Use of Logic Gate Inverters and buffers exhaust the possibilities…


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Kirchhoff’s Laws

Kirchhoff’s Laws

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


Worksheets - Analog

L-Match Impedance Matching Circuits

L-Match Impedance Matching Circuits

This calculator is designed to compute for the parameters needed to design a L-Match Impedance Circuit


Tools

Differential Transistor Amplifiers

Differential Transistor Amplifiers

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


Worksheets - Analog

Capacitor Impedance Calculator

Capacitor Impedance Calculator

This tool calculates a capacitor's reactance for a given capacitance value and signal frequency.


Tools

Active Loads in Amplifier Circuits

Active Loads in Amplifier Circuits

We know that the current in a series circuit may be calculated with…


Worksheets - Analog

AC Lab - Frequency Analysis

AC Lab - Frequency Analysis

In this hands-on AC electronics experiment, use the frequency spectrum display from an oscilloscope program to observe waveforms from a musical keyboard and learn about spectral analysis.


Textbook

Circuits and the Speed of Light

Circuits and the Speed of Light

Suppose we had a simple one-battery, one-lamp circuit controlled by a…


Textbook

Motor Control Circuits

Motor Control Circuits

The interlock contacts installed in the previous section’s motor…


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