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Message

Re: Power Supply Crowbar

2005-11-23 by Mike Marsh

Or add a second power supply...

--- In motm@yahoogroups.com, "Paul Schreiber" <synth1@a...> wrote:
>
> It's not the steady-state load, it's charging up all the caps on 
the boards. The 
> current in the first 100ms is probably 1A or so.
> 
> No real easy solution.....power sequencing is the best.
> 
> Paul S.
> 
> 
> 
> ----- Original Message ----- 
> From: "djbrow54" <davebr@e...>
> To: <motm@yahoogroups.com>
> Sent: Tuesday, November 22, 2005 4:40 PM
> Subject: [motm] Power Supply Crowbar
> 
> 
> >I am running a single HAA15-0.8-A power supply in my middle cabinet
> > connected to two MOTM-960 distributions boards, one on each 
side.  I
> > have been having problems with the power supply current limiting 
on
> > power up.  My total load on this supply is 480 mA nearly balanced 
on
> > both +/- 15 volts.
> >
> > What have others done to deal with this?  I've moved some modules
> > around trying to change the loading but it never really fixes it.
> >
> > I've been thinking of adding a small sequencer to enable one of 
the
> > 960 distribution boards after a small delay.
> >
> > Would some bulk inductance in series help?
> >
> > Thanks in advance. - Dave
> >
> >
> >
> >
> >
> >
> >
> >
> >
> > Yahoo! Groups Links
> >
> >
> >
> >
> >
> >
>

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