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Monday, August 15, 2011

Jumper One » electronic projects, tutorials, hardware hacking...

Simple Linear Adjustable Power Supply Tutorial (Based Around LM317)

How to build your own linear adjustable power supply based on LM317.
In this tutorial I’ll explain how linear power supply works, what parts it consists of and a lot of small details, like how to calculate smoothing capacitor value, or how to choose a transformer. Plus you’ll see how to build an actual power supply.
You’ll find schematics, data-sheets and photos at the end of this page.

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Simple Linear Adjustable Power Supply Tutorial (Based Around LM317) Part 1/2


Video Link...
http://www.youtube.com/watch?v=2EFnqZUxFZ4&feature=player_embedded



Simple Linear Adjustable Power Supply Tutorial (Based Around LM317) Part 2/2


Video Link...
http://www.youtube.com/watch?v=hUGzeeTaJCs&feature=player_embedded


Converting ATX Power Supply to Lab Bench Power Supply

Small tutorial on Computer ATX Power Supplies. How to use them, how to connect them in series, in parallel. What is 12V rails? Is it possible to connect 12V rails together? ATX connector wiring explained. What is difference between old computer power supplies and new ones?
And finally how to make Lab Bench Power Supply from Computer ATX Power Supply.

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How to make PCB’s using Toner Transfer method.

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How to Convert Wireless Mouse to Use Li-Pol Batteries

How to convert wireless mouse to work on Li-ion battery.

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