Karl and Corey discuss the basics of how to power your electronic circuits.
Linear Regulators, LDOs, and Switch Mode Power Supplies are explained.
Traps for new engineers and hobbyist working with power supplies are lamented.
Wallwarts - unregulated outputs
Creepage and Clearance
What is Creepage and Clearance? from Texas Instruments
A look at the dangers of buying cheap phone chargers
Simple calculator to determine the minimum creepage and clearance requirements.
Reverse Polarity DC Jacks
Apparently, polarity is a big issue when using Guitar Pedals. I have found quite a few stories of damaged equipment due to the wrong style of wallwart being used:
One of the 10 ways to destroy an Arduino:
Reverse Polarity Protection Schemes
ATX Power Supply Breakout Board
Power Factor Correction
Most of the post on the Internet are more concerned about saving money on electrical bills by using PFC. I discussed the possibility of damaging other household electronics due to poor PFC. Also, I mentioned adding an inductor to cancel out a capacitor. More typically it is the other way around. Adding capacitors to cancel out an inductive load, such as a Motor.
PDF Documents dealing with PFC and AC Power Line Distortion
Videos about Power Factor Correction
Simple AC to DC Power Supply Video Tutorials
Tutorial: How to build and design an AC to DC Power Adapter / Supply
AC to DC Power Supply - Breadboard to Prototype board.
Diode Tutorial & How to build an AC to DC power supply
Linear Regulator Basics Apps Notes.
Linear Regulator Basics from Texas Instruments
Linear Regulator Basics from Linear Technologies
Famous Linear Regulator Video Tutorials
LM7805 5V Fixed Output Linear Regulator
LM317 Adjustable Output Linear Regulator
LDO Basics and Stability
How to Successfully Apply Low-Dropout Regulators from Analog Technology
The Right LDO for Your Application from Texas Instruments
LDO Regulator Stability Using Ceramic Output Capacitors from Texas Instruments
Dave Jones Comparing Linear to SM Power Supplies
How to choose a precision voltage reference from Linear.
Large collection of voltage reference circuits from Linear.
An example of using a precision voltage reference in an ADC circuit from Texas Instruments http://www.youtube.com/watch?v=MzTDSj65GM4
Switch Mode Power Supplies
Interesting series of 3 SMPS tutorials from “The Post Apocalyptic Inventor”
Simplified Charge Pump Theory
DC-DC Conversion Without Inductors i.e. Charge Pumps from Maxim
Properties of the Charge-Pump Voltage Splitter (i.e. buck) from Maxim
Buck Converter Basics
Buck-Converter Design Demystified
How to Apply DC-to-DC Step-Down (Buck) Regulators Successfully from Analog Devices
Switch Mode Power Supply Topologies: The Buck Converter from Microchip
Placing a Linear Regulator in front of a SMPS
Discussion from Jim Williams about minimizing the residual noise on the Linear Regulator’s output.
Load Regulation and Line Regulation
Understanding the Terms and Definitions of LDO Voltage Regulators from Texas Instruments
Regulated Power Supply Characteristics
Accurately Measuring Line and Load Regulation of DC-DC Converters
Switch-mode Boost Converter Video Tutorial
Dave Jones trying to find the right boost converter
Animated Video Tutorial on Buck-Boost converters
Design Calculations for Buck/Boost Converters from TI
SEPIC - DC/DC Converter
Designing DC/DC converters based on SEPIC topology from Texas Instruments
Designing a SEPIC Converter from Texas Instruments
Analyzing the SEPIC Converter
A review of SEPIC Buck Boost DC/DC Converter bought from Ebay