Can we talk about Charge Pumps? Design.

[italianguy63]

What is the story with the Chinese "Buck Converters"?  Do a search on "LM2596"

They can be had for less than 2 bucks generally.  Adjustable DC to DC converter.  I assume they are really noisy, and tremendously cheap because they are inside every wall-wort in the world.

[GodSaveMetal]

GOODNESS!!! a new year aproach!!! the chinesse importer come with a 7660CPAZ; you know about this chip??? or have a good proposal of a doublier for replace 18V pedals Trafos??

[jubal81]

What is the story with the Chinese "Buck Converters"?  Do a search on "LM2596"

They can be had for less than 2 bucks generally.  Adjustable DC to DC converter.  I assume they are really noisy, and tremendously cheap because they are inside every wall-wort in the world.

I took a chance and got two of those boards for about $5. Perfectly quiet and I got up to 45 volts out of it.

[italianguy63]

I picked 3 of them up-- using them to drive LEDs for automotive "crafts."  i.e. step down 12V to 5V.  MC