# Electronic Theory

Basic principles, ideas, concepts, laws, and formulas behind electronics.

1. 223
2. 54
1. Guides 19
2. Laws 1
3. Other 9
3. 24
4. 1

### Top Articles

1. Determine Voltage Drop Across Resistors AtomSoft
How to calculate voltage drop across series resistors.
2. Pull Up and Pull Down Resistor Tutorial ericgibbs
The Basic use of a pull-up or pull-down resistor is to prevent a 'floating' input to a digital circ
3. Ohm's Law for Beginners (or The Amp-Hour Fallacy) bychon
Just about once a day, somebody writes in with, “My boom box has a dead battery that says 12 volt
4. The Basics of Bypass Capacitors ElectroMaster
This article will explain the function of a bypass capacitor, when its appropriate to use them, and
5. Thermal Budget: Transistors & Heatsinks spec
How to select power devices and specify heatsinking
6. Practical Elecromagnet Design spec
Design and build practical electromagnets using simplified theory and formulae
7. Two Simple Formulae: capacitance and inductance spec
Two relationships can simplify capacitor and inductor voltage and current calculations
1. Articles are being shown from all child categories.
2. ### Thermal Budget: Transistors & Heatsinks

How to select power devices and specify heatsinking
Updated:
Jan 2, 2017
3. ### Practical Elecromagnet Design

Design and build practical electromagnets using simplified theory and formulae
Updated:
Dec 18, 2016
4. ### Two Simple Formulae: capacitance and inductance

Two relationships can simplify capacitor and inductor voltage and current calculations
Updated:
Nov 4, 2016
5. ### Data and Books- some old friends

data books, application reports, eletronic theory books, electronic magazines from yesterday
Updated:
Mar 29, 2016
6. ### Books, Articles, Data

books & other info covering electronic design that I have found useful
Updated:
Nov 22, 2015
7. ### BASICS OF ELECTRONICS DEMYSTIFIED

Having a hard time understanding basic Electronics Components. Here's a perfect guide
Updated:
Jun 25, 2014
8. ### Transducers

This article doesn't fit well in any of the categories since it's more philosophical than practical.
Updated:
Jan 8, 2014
9. ### Art of Arduino: Lesson 1-5

A series of videos showing you how to create basic circuits using an Arduino.
Updated:
Oct 12, 2013
10. ### 8051 - Setting Up The UART For Serial Communications

The Intel 8051, as old as it is, is still a very popular processor in use today. Some say it's due
Updated:
Apr 22, 2013
11. ### Determine Voltage Drop Across Resistors

How to calculate voltage drop across series resistors.
5/5, 1 vote
Updated:
Mar 2, 2013
12. ### Smart Room Power Controller

An ordinary automatic room power control circuit has only one light sensor. So when a person enters
Updated:
Feb 28, 2013
13. ### Design of a VHF Class-A Amplifier for Optimum Power Output

[B]Summary[/B] This article presents the design of Class-A VHF transistor amplifier intended to pr
Updated:
Feb 10, 2013
14. ### Relays & Ladder Logic for NOOBs

This attempt at an instructional thread is in response to several experiences I've had trying to co
5/5, 1 vote
Updated:
Feb 7, 2013
15. ### Pull Up and Pull Down Resistor Tutorial

The Basic use of a pull-up or pull-down resistor is to prevent a 'floating' input to a digital circ
5/5, 1 vote
Updated:
Jan 19, 2013

Updated:
Jan 17, 2013
17. ### 555 Timer as a Hysteretic Controller

The 555 timer IC is often used to provide flexible astable oscillators and monostable timers. The I
Updated:
Jan 17, 2013

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Jan 17, 2013
19. ### Introduction to Electron Tubes

Vacuum tube, electron tube, or thermionic valve is a type of an electronic component mainly used on
Updated:
Jan 15, 2013
20. ### Diode Log and AntiLog Circuit Derivations

Here is some basic theory on diode log and antilog circuits and their derivations. Lots of people s