tyler_durden Wrote: > I think a lot of people have missed the fact (revealed in other threads > by the CTO of slimdevices) that the power for the analog stages in the > squeezebox comes from the HV switching converter on the display board. > > > You can mess around with linear regulated supplies and ferrite beads > external to the squeezebox all you want but that won't change the fact > that the internal supply is a switcher. The switcher drives linear > regulators that supply the audio circuits. > > If you open the thing up and replace the switching supply for the > display with a linear regulated supply you might be doing something > meaningful (or you might not). > > TD
Huh? There are switching supplies, and then there are switching supplies. Indeed, Mr. Adams charaterized that supply as switching, but one could assume its a multivibrator? (a 555 or suchlike), feeding a voltage multiplier (a bunch of diodes and caps), and as to whether its spewing noise would depend on the implementation. Its the same topology that was used in the DI/O which certainly was not problematic, or noisy, by any means. This is hardly the same as those little wall carbuncles. Perhaps Sean could be a bit more specific as to the switching methodology and frequency (the voltage multiplier is already known to be a Cockcroft-Walton multiplier). Tyler - it serves no one to paint with such a broad brush without sufficient background information. Regards, Occam -- occam ------------------------------------------------------------------------ occam's Profile: http://forums.slimdevices.com/member.php?userid=949 View this thread: http://forums.slimdevices.com/showthread.php?t=20725 _______________________________________________ audiophiles mailing list [email protected] http://lists.slimdevices.com/lists/listinfo/audiophiles
