Rants and Raves
 
 


"In any case I do agree with what you say in your site, that the Cuk converter is the best possible topology, as much as I know so far, if the output requirements are tight.

"But this is not always the case and other topologies will do the job with less volume and height! if those requirements are relaxed."

Fermin Garcia-Mina -- PS Engineer for a startup company. Recently working for CRISA, developing PS for ESA.




No Comment Necessary






Who is an Engineer?

[Not an email, just found it browsing!]

Some ideas from the article: "Who's an engineer" published in "IEEE Spectrum" magazine, July 1999.
Q&A attributed to Abraham Lincoln:

Q: If you call a horse's tail a leg, how many legs does a horse have?
A: Four. Calling a tail a leg doesn't make it a leg.


Some people should not call themselves engineers without proper training in engineering.

Learning to use a computer does not make one a computer or software engineer, any more than driving a car makes one an automotive engineer.

www.powersupplies.net Then click on "Ethics"






"I am in the late-middle stage of development of a 150 W Cuk isolated PFC,
with voltage regulation."

...

"The boost topology is the most popular, but is not isolated and requires an
additional converter stage for isolation."
...

Dennis L. Feucht -- Innovatia Technology





"My congratulation for this website."

Franz Selleschy,
Electrical Machines and Drives
University of Wuppertal (Germany)





"I have gone through your site with great interest, and found it pretty good."

Nigel Springett--ascom Energy systems Gmbh







"Congratulations! You've done an excellent job...."

--Dr. R.D.Middlebrook; Professor Emeritus, Caltech

Author: Technical Therapy for Analog Designers

Co-Author: Advances in Switched Mode Power Conversion, Vols. I, II, III

Authorized Helper: Val's Victory: Defeat Was NEVER an Option







"A remarkable and well crafted website which should be of high interest and value to any power supply designer." --Jerrold Foutz, formerly of the Naval Ocean Systems Center (NOSC), San Diego, CA. Currently Co-owner of www.smpstech.com





"[L]ooks good." E. Wold, Co-founder of www.musclefish.com




"...it's great...well put together."

Kristine E. Nielson, Graduate Student in Geology, Penn State University





"Everything down to the smallest resistor is carefully explained."

--Chris Marek, Friend, Student @ the College of DuPage





"...[now] maybe people will be able to design one of these converters."

--Dr. R.W. Erickson, Professor: Electrical and Computer Engineering Department; Universty of Colorado, Boulder.

Co-Author Fundamentals of Power Electronics, Second Edition , 2000






...over my head...

-Tom Gayhart, Freshman Business Major at the University of Kentucky
Also my nephew, once removed...





"Most impressive website..."

Dr. B.L. Schumaker, Gravitational Physicist, NASA/JPL








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