[sdiy] SSM2164 protection

Oscar Salas osaiber at yahoo.es
Thu Mar 3 00:55:26 CET 2011


Hi David, 
So maybe 2164 could be damaged because this behaviour of the power supplies (power-one)? Had you any 2164 died?

--- On Thu, 3/3/11, David Brown <davebr at earthlink.net> wrote:

> From: David Brown <davebr at earthlink.net>
> Subject: Re: [sdiy] SSM2164 protection
> To: synth-diy at dropmix.xs4all.nl
> Date: Thursday, March 3, 2011, 12:38 AM
> My cabinets are 24U.  I found
> that my Power One supplies would sometimes crowbar with the
> capacitance loading of that many modules, and it was usually
> the -15 rail that tended to crowbar.  I do have some
> photos each rail powering up at http://modularsynthesis.com/modules/DJB-power/djbpower.htm. 
> You can see the -15V rail took longer to reach full
> voltage.  I never investigated why the -15 volts was so
> much longer than +15 volts.  I don't know if that is a
> characteristic of the power supply or the modules.



      



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