[sdiy] SSM2164 protection

[David Brown]

No, because I fixed the crowbar issue with a time delay on half the 
modules in a cabinet.  But, I was very worried about one rail 
powering on with another rail off.  I figured it could cause all 
sorts of grief.  I bet the 2164 is just one example of all sorts of 
nasties that can occur with a half-powered system.

Dave

At 03:55 PM 3/2/2011, Oscar Salas wrote:
>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.