All About Circuits

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Shock Current Path

Shock Current Path

As we’ve already learned, electricity requires a complete path…


Textbook

Basic AC-DC Power Supplies

Basic AC-DC Power Supplies

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


Worksheets - Power-Management ICs

Series Circuits and the Application of Ohm’s Law

Series Circuits and the Application of Ohm’s Law

In this introduction to series resistance circuits, we will explain…


Textbook

DC Circuit Equations and Laws

DC Circuit Equations and Laws

Power Equation of Ohm’s Law and Joule’s Law    …


Textbook

Si Lab - BJT Common-collector Voltage Follower

Si Lab - BJT Common-collector Voltage Follower

In this hands-on semiconductor electronics experiment, build a voltage follower amplifier using a bipolar junction transistor (BJT) in common-collector configuration and learn about circuit ground and impedance transformations.


Textbook

Kirchhoff’s Current Law (KCL)

Kirchhoff’s Current Law (KCL)

What Is Kirchhoff’s Current Law? Kirchhoff’s Current Law,…


Textbook

DC Lab - Potentiometer Voltage Divider

DC Lab - Potentiometer Voltage Divider

In this hands-on electronics experiment, you will use potentiometers to vary a voltage and learn about voltage divider ratios and potentiometer applications.


Textbook

Si Lab - JFET Current Regulator

Si Lab - JFET Current Regulator

In this hands-on semiconductor electronics experiment, build a junction field-effect transistor (JFET) current regulator and learn some of the advantages of JFETs over BJTs for current regulation.


Textbook

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…


Textbook

BJT Amplifier Troubleshooting

BJT Amplifier Troubleshooting

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


Worksheets - Power-Management ICs

Basic Logic Gates

Basic Logic Gates

Identify the type of logic gate shown in this schematic diagram, and…


Worksheets - Power-Management ICs

Ammeter Design

Ammeter Design

Ammeters Measure Electrical Current A meter designed to measure…


Textbook

DC Motor Control Circuits

DC Motor Control Circuits

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


Worksheets - Power-Management ICs

Basic Ammeter Use

Basic Ammeter Use

Show how this ammeter would be connected to the light bulb circuit to…


Worksheets - Power-Management ICs

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.


Textbook

Millman’s Theorem Revisited

Millman’s Theorem Revisited

You may have wondered where we got that strange equation for the…


Textbook

Basic Voltmeter Use

Basic Voltmeter Use

What will this voltmeter register when connected to a battery as shown…


Worksheets - Power-Management ICs

Clamper Circuits

Clamper Circuits

The circuits in the figure below are known as clampers or DC…


Textbook

Capacitor Impedance Calculator

Capacitor Impedance Calculator

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


Tools

Some Examples with AC Circuits

Some Examples with AC Circuits

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


Textbook

Logic Signal Voltage Levels

Logic Signal Voltage Levels

Input Voltages for Logic Gates Logic gate circuits are designed to…


Textbook

Multiplexers and Demultiplexers

Multiplexers and Demultiplexers

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


Worksheets - Power-Management ICs

Introduction to Insulated-gate Field-effect Transistors

Introduction to Insulated-gate Field-effect Transistors

As was stated in the last chapter, there is more than one type of…


Textbook

Biasing Techniques (BJT)

Biasing Techniques (BJT)

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


Textbook

Stripline Max Current Calculator

Stripline Max Current Calculator

A calculator designed to calculate the maximum current that a stripline can handle


Tools

Digital Signals and Gates

Digital Signals and Gates

While the binary numeration system is an interesting mathematical…


Textbook

Fundamentals of SPICE programming

Fundamentals of SPICE programming

Programming a circuit simulation with SPICE is much like programming…


Textbook

Electrons and “holes’’

Electrons and “holes’’

Pure semiconductors are relatively good insulators as compared with…


Textbook

Amplifier Impedances

Amplifier Impedances

Input impedance varies considerably with the circuit configuration…


Textbook

Programmable Logic Technology

Programmable Logic Technology

Define the following acronyms as they apply to digital logic circuits:…


Worksheets - Power-Management ICs

Encoder

Encoder

What is an Encoder? An encoder is a circuit that changes a set of…


Textbook

Light-Pulse Switch

Light-Pulse Switch

It is fairly important to use large value resistors (10 MΩ works…


Worksheets - Power-Management ICs

Calculus for Electric Circuits

Calculus for Electric Circuits

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


Worksheets - Power-Management ICs

Resistivity Calculator

Resistivity Calculator

This calculator calculates the resistivity of a component based on its resistance value, length, and cross-sectional area.


Tools

Introduction to Mixed-Frequency AC Signals

Introduction to Mixed-Frequency AC Signals

In our study of AC circuits thus far, we’ve explored circuits…


Textbook

Ohm’s Law

Ohm’s Law

For a given amount of water pressure, which will flow a greater rate…


Worksheets - Power-Management ICs

Biasing Techniques (IGFET)

Biasing Techniques (IGFET)


Textbook

Digital Logic With Feedback

Digital Logic With Feedback

With simple gate and combinational logic circuits, there is a definite…


Textbook

Design Project: DC Motor

Design Project: DC Motor

The armature windings of your DC motor will have very low resistance.…


Worksheets - Power-Management ICs

Insulated Gate Bipolar Transistors

Insulated Gate Bipolar Transistors

What is an Insulated Gate Bipolar Transistor (IGBT), and what…


Worksheets - Power-Management ICs

Network Protocols

Network Protocols

Aside from the issues of the physical network (signal types and…


Textbook

Trace Resistance Calculator

Trace Resistance Calculator

This calculator determines the resistance of a microstrip trace


Tools