We use nothing but switching supplies in my industry, and I have NEVER had one fail and take out what it powers. Talking about 10,000 or so supplies.
I dont know much about the ham type stuff, except to stay away from anything made by mfj... Brett N2DTS ----- Original Message ----- From: "Tom Hammond" <[EMAIL PROTECTED]> To: <[email protected]> Sent: Tuesday, November 06, 2007 10:35 AM Subject: [Elecraft] Anyone know this info about switching supplies? > Folks: > > A local discussion has 'erupted' regarding switching poser supplies and whether > they can fail in an UNregulated (e.g. high) output voltage condition, or if > when they fail will they (almost) always fail in a NO OUTPUT mode? > > I think this discussion may have been started as a result of a subject here on > the reflector about overvoltage protection (OVP), but it's managed to take on > a life of its own with respect to the MODES in which a switching P/S > can/will fail. > > Anyone have enough real experience to express their thoughts on this subject. > > Must admit... I have no clue myself. I've 'heard' that most switchers fail in > the NO OUTPUT mode, but this is strictly hearsay. > > Let's try to get several responses and the let the subject drop before IT takes > on a life of its own on the reflector and Eric has to step in... he's > busy enough > right now. <G> > > 73, > > Tom N0SS > > _______________________________________________ > Elecraft mailing list > Post to: [email protected] > You must be a subscriber to post to the list. > Subscriber Info (Addr. Change, sub, unsub etc.): > http://mailman.qth.net/mailman/listinfo/elecraft > > Help: http://mailman.qth.net/subscribers.htm > Elecraft web page: http://www.elecraft.com _______________________________________________ Elecraft mailing list Post to: [email protected] You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
