|
Computer Audio Asylum Music servers and other computer based digital audio technologies. |
|
|
|
Computer Audio Asylum Music servers and other computer based digital audio technologies. |
|
In Reply to: Power supply design for low power PC posted by John Swenson on January 3, 2009 at 16:46:07:
Here is a power supply design for the low power PCsOK, better late than never. It's been several weeks now since I finally got round to finishing a 9-volt version of the above design to drive a Fit-PC2 running cMP^2.
Even though it replaced a conventional linear supply rather than an SMPS 'brick', results have been very fine with improvements that are clearly audible - if not 'night and day' then not far off and certainly 'early dusk and late dawn'.
In passing, there seem to be a couple of minor typos in the drawing - the value for the Lower Arm Resistor is too low (calculate as per datasheet) and, at least in my case, wiring the transformer secondaries in series as shown made for a pretty high voltage at the regulator's i/p. Parallel OTOH was fine.
Whatever, it's a super circuit and I'd like to take this opportunity of saying thanks for making the design generally available.
John: Re-reading your notes, it's apparent that using it to provide one to 1.5 amps at 12 volts (for a DDDAC) would probably take the design to its limits. Is it feasible to modify it to do this without intruding (well, not too much) on your time?
Dave
Edits: 07/20/10
This post is made possible by the generous support of people like you and our sponsors:
Follow Ups
- RE: Power supply design for low power PC - Ryelands 04:28:24 07/20/10 (0)
Top of Page ]
[ Contact Us ]
[ Support/Wish List ]
[ Copyright © 2024, Audio Asylum, all rights reserved ]
