3 Jun
2007
3 Jun
'07
3:51 p.m.
On Jun 3, 2007, at 2:43 PM, Chuck Guzis wrote:
There's nothing "authentic" or even remotely elegant about 78xx
regulators in my opinion. They're a current product, have been for
decades, and probably will be for another two decades.
If you are
doing a design with on-board regulators in the 21st
century, why not use integrated switching rather than linear
regulators?
Heat dissipation will be MUCH lower if you do this.
Al, I confess to not having a good handle on this matter of what's
"vintage" and what's not. I was looking at 78xx linear regulators as
being "authentic". I mean, why bother with S-100 at all? There are
plenty of better busses now, right?
"Better" is subjective...Better for what application? If you're
designing a small system for, say, industrial automation, do you
really want the expense and extreme complexity of something like PCI
or VME? Having done PCI interfacing with an FPGA, I can say that
getting something working on an S-100 bus involves a whole lot less
hair pulling.
-Dave
--
Dave McGuire
Port Charlotte, FL