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Understanding BJTs: NPN and PNP Transistors

By breaking down the complex behavior of BJTs into three manageable operating regions—cutoff for switching off, ...

Introduction to QSPICE

QSPICE stands out as a modern alternative to traditional SPICE tools. With its ability to generate models from ...

Mastering Datasheets: A Comprehensive Guide on How to Read Datasheets

Understanding the difference between typical and maximum values in a datasheet is crucial for circuit safety. This ...

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Textbooks

Fundamentals of Electrical Engineering I

by Don Johnson | 7 Chapters
Fundamentals of Electrical Engineering I

Welcome to the Fundamentals of "Electrical Engineering One" textbook, written by Dr. Don Johnson. This textbook is ...

Welcome to the Fundamentals of "Electrical Engineering One" textbook, written by Dr. Don Johnson. This textbook is open source and freely available for ...

Electromagnetics I

by Steven W. Ellingson | 10 Chapters
Electromagnetics  I

This book is intended to serve as a primary textbook for a one-semester introductory course in undergraduate ...

This book is intended to serve as a primary textbook for a one-semester introductory course in undergraduate engineering electromagnetics.

This textbook emphasizes connections between theory ...

This textbook emphasizes connections between theory and application, making physics concepts ...

EE FAQs

If you’ve never heard of a Power Delivery Network, or PDN, it may sound... Read Article
If you’ve never heard of a Power Delivery Network, or PDN, it may sound intimidating and complex but, in reality, it’s... Read Article
Josh Bishop

Answered by Josh Bishop

People who visit Circuit Bread are usually hobbyists just looking to learn new... Read Article
People who visit Circuit Bread are usually hobbyists just looking to learn new things, engineering students studying to... Read Article
Josh Bishop

Answered by Josh Bishop

Suppliers to the electronics industry, like many others today, rely on... Read Article
Suppliers to the electronics industry, like many others today, rely on independent, professional distribution... Read Article
Josh Bishop

Answered by Josh Bishop

Way back in 1965, computers first began communicating with one another as a... Read Article
Way back in 1965, computers first began communicating with one another as a result of research funding from the US... Read Article
Josh Bishop

Answered by Josh Bishop

The Fun Stuff

Simple STEM/STEAM Building Blocks - Maker Faire

Faires & Shows

Simple STEM/STEAM Building Blocks - Maker Faire

We were able to meet with Dr. Azi Jamalian to learn more about litleBits - building blocks that blink, beep, and teach. The idea behind littleBits ...

nScope - Maker Faire

Faires & Shows

nScope - Maker Faire

About CircuitBread

About CircuitBread

Electronics, electrical engineering, and embedded systems can be daunting for beginners, students, and even seasoned experts. At CircuitBread, we aim to provide an organized and ever-growing variety of free electronics and engineering tutorials, tools, calculators, textbooks, study guides, equations, glossaries and more to make learning about the technical world a little easier. We strive to make CircuitBread the best way to learn electronics and electronics engineering. Whether it's learning the basics about microcontrollers, op-amps, resistors, and other basic electronic components or diving deeper into college level concepts, we have educational content for all skill levels. Be sure to check out our popular Circuits 1, Control Systems, Microcontroller Basics, and Electronic Products First Impressions tutorial video series. We have also assembled one of the best and most extensive online open source engineering textbook libraries that includes: Fundamentals of Electrical Engineering, Electromagnetics, Introduction to Electricity, Magnetism & Circuits, and Lessons in Electric Circuits – all available in our easy to use online eBook reader. About Us

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