360W SMPS lower or higher power (core and freq.)

harp mg · 07:05 PM

i made this project and it works :

http://sound.westhost.com/project89.htm

everything is ok. but there is a big problem and that is the core size and winding.
i dont have 39 etd avalible and i wanna know what differences does it make to use a different core size. how do the wires and winding ,turn rates and number of turns etc vary?

thankx for evey help is done.

a2005r2003 · 10th July 2011, 03:15 PM

HI
ETD 39 is a core with Cross Section Area = 1.25 Cm2
and u can use any cor with this area
Calculation is easy
Google the Web like this:
New Page 1
GOODLUCK

8th July 2011, 07:02 PM	#1
harp mg diyAudio Member Join Date: Mar 2011 Location: here in imerica	360W SMPS lower or higher power (core and freq.) i made this project and it works : http://sound.westhost.com/project89.htm everything is ok. but there is a big problem and that is the core size and winding. i dont have 39 etd avalible and i wanna know what differences does it make to use a different core size. how do the wires and winding ,turn rates and number of turns etc vary? thankx for evey help is done. Last edited by harp mg; 8th July 2011 at 07:05 PM.

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10th July 2011, 03:15 PM	#2
a2005r2003 diyAudio Member Join Date: Sep 2005 Location: Khuzestan - Iran	HI ETD 39 is a core with Cross Section Area = 1.25 Cm2 and u can use any cor with this area Calculation is easy Google the Web like this: New Page 1 GOODLUCK

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