DC to DC Converter Confusion
Posted: Thu Jul 08, 2010 10:51 am
I've been carefully studying the DC to DC converter article in March 2009 N&V. I am confused on one point. On page 48, u (mu) for the toroid made of 3C90 material is given, "From the 3C90 specification sheet," as 4 x 10 to the minus 3. Yet as far as I can see on the spec sheet from the manufacturer, Ferroxcube, the value of u is listed as being between 2300 and 5500.
http://www.ferroxcube.com/prod/assets/3c90.pdf
Can anyone clarify this difference for me? The difference is obviously critical and I don't know how to proceed with any calculations. Many thanks!
Gary
http://www.ferroxcube.com/prod/assets/3c90.pdf
Can anyone clarify this difference for me? The difference is obviously critical and I don't know how to proceed with any calculations. Many thanks!
Gary