Re: Need input: Wierd Powerflash behavior

[prc1 <prc1CRAP@xxxxxxxxxxxxxxxxxx>]

Hi Dan, and thanks for the reply.

Yes, sequencing is necessary.  I have four stereo amps to handle the
seven channels (and will probably add a fifth amp to the stack for the
sub).  Depending on the peramp's mode I wanted to switch amps on and
off to conserve power.  Each amp at max output pulls 8 amps.

I thought I might have to build some sort of power sequencing box at
the amp end, set off by a trigger from the preamp.  However I didn't
want to get into that (every one of my projects seems to involve some
sort of jerry-rigged solution these days!) and thought X10 might be
the least-expensive but reasonable solution.  I've looked at some
off-the-shelf triggered outlets (like Mr. Bass recommended) but these
are typically > $150.00 and only do one or two outlets.


On 26 Dec 2009 00:03:07 GMT, ddl@danlan.*com (Dan Lanciani) wrote:

>In article <hjjaj513o9n89dna66a4t3i59r66p2823a@xxxxxxx>, prc1CRAP@xxxxxxxxxxxxxxxxxx (prc1) writes:
>
>| I figured out the problem--it's a data collision.  When the preamp
>| powers up, there's a 1-second delay between the A & B trigger outputs
>| so everything turns on.  However, when the power goes OFF, there's no
>| delay.  Both PSC01s send a code-specific off command and they
>| collide--thus nothing gets turned off.
>|
>| There's no adjustment in the preamp to delay the trigger outputs on
>| power off, so how could I implement a power delay for the input
>| voltage on one of the PSC01s?  Would an electrolytic cap across the
>| inputs give enough delay?
>
>Yes, possibly, but this all seems unnecessarily complicated.  Why not
>use a single PSC01 and handle any sequencing (do you really need it at
>all?) on the far side.
>
>If you do try a capacitor you should probably add a blocking diode.
>
>				Dan Lanciani
>				ddl@danlan.*com
** To respond, remove the crap from my addy...  **