On Friday 12 October 2007 11:48:12 am John Doty wrote: > On Oct 12, 2007, at 7:20 AM, Randall Nortman wrote: > > So I have a 42VDC supply that I want to feed into a linear regulator. > > But almost all linear regulators want 40V absolute maximum, and the > > ones that have higher maximums are not reliably stocked anywhere. > > What's wrong with an LM317HV?
They have a tendency to explode in my experience with them. The TI TL783 does not. http://focus.ti.com/docs/prod/folders/print/tl783.html There are also high-voltage regulators, for lower currents, based on Depletion-FETs from Supertex: LR8, LR12, LR645, LR745. Put those in the "Search" box. Supertex has the *worst* web site of all of the semiconductor places I deal with. If you don't already know that they make it, you don't know they make it. Every "improvement" to the site they make, makes things harder to find. -- http://www.wearablesmartsensors.com/ http://www.softwaresafety.net/ http://www.designer-iii.com/ http://www.unusualresearch.com/ _______________________________________________ geda-user mailing list [email protected] http://www.seul.org/cgi-bin/mailman/listinfo/geda-user
