atari email archive

a collection of messages sent at Atari from 1983 to 1992.

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Please come to a meeting - we need to resolve an issue:

MEETING: DO WE WANT "REMOTE SENSE" ON SWITCHING SUPPLIES?
WHEN:    4/23/86 @ 1:00 PM
WHERE: CENTRAL CONF. ROOM

Currently, we specify remote sense as a requirement on switching supplies.
All 5V, 10A switchers procured have met the requirement - although I don't 
think we used it (Pat can confirm this). TX-1 used a switcher from LH 
Research - did we use remote sense on it?

The problem is that we are currently using 5V, 15A switchers in Super Sprint
and no manufacturer has anything with remote sense in our price range. We
have bought 2000 from Sierracin without remote sense on a deviation basis.

QUESTION: If we are NOT going to use remote sense, do we want to pay the 
          extra cost for it?

QUESTION: If we ARE going to use remote sense (and you'll have to convince me 
	  of that), is the benefit worth the extra cost in our application?

In my relatively naive approach, I see our supplies situated physically close
to the logic PCB's and I see our current load as being fairly steady. Given
that situation, remote sense seems unnecessary. The VIRTUE of remote sense
seems to be that our factory will NOT have to check and adjust 5V manually 
(assuming remote sense is connected to the 5V output at the supply).
This is not insignificant given the transitory nature of our production line
workers.

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REVISED: RESCHEDULED TO THURS. 4/24/86 @ 1:00PM
Please come to a meeting - we need to resolve an issue:

MEETING: DO WE WANT "REMOTE SENSE" ON SWITCHING SUPPLIES?
WHEN:    REVISED: THURS. 4/24/86 @ 1:00PM
WHERE: CENTRAL CONF. ROOM

QUESTION: If we are NOT going to use remote sense, do we want to pay the 
          extra cost for it?

QUESTION: If we ARE going to use remote sense (and you'll have to convince me 
	  of that), is the benefit worth the extra cost in our application?

CORRECTION: GAUNTLET SWITCHER

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Pat says remote sense IS run to the logic board on Gauntlet. My error - the
swichers came in from Japan with a shunt on the remote sense and I thought
they were used as-is. oops.
Message 1 of 3

Apr 22, 1986