[net.analog] Any switchmode power supply

jeffw (04/01/83)

In particular, I'd like information/experiences relating to:

        Synchronous rectifiers
        Switching optocouplers (tr and tf < 200ns)
        Line input power factor correction
        Driving 120vac fans from 220vac line
        Meeting VDE conducted emissions specs
        Different topologies and prejudices about them
        Theories describing loop response at or above the switching frequency
        
Also, is the course that Cuk and Middlebrook give really worthwhile for 
someone who has been actively involved in switcher design for the last 
five years? What is it really like?

                                    Let's talk...
                                     Jeff Winslow

vax1:swifty (04/06/83)

There are several people here at Fluke who have designed switching
power supplies.  Most of the instruments that used these designs
are relatively low power and the reason that a switcher was chosen
was to give the instrument the ability to operate from dc power
sources, with large variation in input levels.
The concensus about C&M is that if the classes are like their books
then they are not worth the time and/or money.  You'd be better
off studying the books. If you want to mail anything to some of these
people you can use my address substituting for swifty:

		rdz  (Ray Zoellick)
		laup (Paul Chastain)
	    gallavan (Mike Gallavan)

	       lantz (Paul Lantz)

All these people are in my department and they can get you in contact
with others around Fluke.  Being power supply designers (analog types
they are not very familiar with the net so be patient when waiting
for their replies.

Steve Swift
Industrial Products
John Fluke Mfg. Co. Inc.
Everett, WA 
(206) 356-5259