MOTM

In a message dated 5/8/01 1:21:46 PM, groovyshaman@... writes:

<< I recommend the Power One dual output supply HCC15-3-A (DigiKey 
179-2073-ND) as a replacement instead of a triple output supply, since MOTM 
modules do not require the 5V output.  >>

I think I had asked Paul about this a while ago, and he indicated that the 
inevitable sequencer would required +5Vdc for all of the TTL circuitry.

Ivan

Ivan, a good point.  I vaguely remember reading about a possible 5V
requirement in the archives.  Interestingly, the MOTM-120, MOTM-300 and
MOTM-700 each have a 5V requirement that is currently met by using its own
5V regulator.

In any case, the Power One triple output supply that provides +-15V @ 3A
also provides +5V at 12A, which is MUCH more amperage at 5V than I think we
will ever need.  (Even the supply that provides +-15V @ 1.5A provides +5V @
6A!)  One could always add a separate Power One 5V supply later once the
precise requirements are known.  Besides, by the time modules are available
that require a 5V supply, I suspect Paul will have an official 900 series
power module that will provide it.

Cheers,
George

----- Original Message -----
From: <ivancu@...>
To: <motm@yahoogroups.com>
Sent: Tuesday, May 08, 2001 4:36 PM
Subject: [motm] +5Vdc MOTM - was: More Power Needed.


In a message dated 5/8/01 1:21:46 PM, groovyshaman@... writes:

<< I recommend the Power One dual output supply HCC15-3-A (DigiKey
179-2073-ND) as a replacement instead of a triple output supply, since MOTM
modules do not require the 5V output.  >>

I think I had asked Paul about this a while ago, and he indicated that the
inevitable sequencer would required +5Vdc for all of the TTL circuitry.

Ivan



Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/

Trust me,  2A of +5V is *plenty*.

Paul S.

In a message dated 5/8/01 3:54:25 PM, groovyshaman@... writes:

<< In any case, the Power One triple output supply that provides +-15V @ 3A
also provides +5V at 12A, which is MUCH more amperage at 5V than I think we
will ever need.  (Even the supply that provides +-15V @ 1.5A provides +5V @
6A!) >>

True, but in the case of surplus supplies it tends to be available at very 
little, if any, additional cost.  Just pointing out that it isn't a total 
waste to purchase a triple-output power supply.

Ivan

>Trust me,  2A of +5V is *plenty*.
>
>Paul S.

Not using many LED's, eh?  8^)

-- 
Terry Bowman, KA4HJH
"The Mac Doctor"