15 Apr
2013
15 Apr
'13
6:24 p.m.
From: David Riley <fraveydank at gmail.com>
To: General Discussion: On-Topic and Off-Topic Posts <cctalk at classiccmp.org>
Sent: Wednesday, April 10, 2013 9:27 PM
Subject: Re: H780 power supply
?
Yeah, if you run some of the less intelligent ones with
two low a
load, the duty cycle on the switcher shrinks to near zero, which
means lots of sharp pulses up/down next to each other on an
inductor.? The end result is not nice.? The smarter systems will
just hold off for a period if they detect an insufficient load;
the even smarter ones will switch in a dummy load automatically.
- Dave
?? Well my new caps came in tonight. They were kind of? odd values so I had
to order them. I put them in, assembled it and success! DC light right on and after
getting the baud right, a prompt!
http://www.vintage-computer.com/vcforum/attachment.php?attachmentid=12819&a…
Brian.