27 Nov
2014
27 Nov
'14
10:04 a.m.
Well, when you have hundreds of Amps flowing across
the backplane, it gets
hard to have all boards having the same voltage. Even if you have, maybe 4
boards in a block, there will be significant voltage drop from the feed end
to the far end. If you make the power planes too thick, it becomes
impossible
to solder the backplane connectors, so you have to go to press-fit contacts.
Yes, I realize the problems, and I am not even a power supply guy. I
do know that it is enough of a concern that *qualified* power supply
guys need to be hired to come up with a working system.
That is all well-known technology now, but might have
been on the cutting
edge when the KL10 was designed.
No, balancing big parallel power supplies goes back quite some ways,
into the 1950s, at least.
--
Will