Somethings are wrong in PI Expert software in high power supplies?!
Hi Guys
first let me explain my spec. :
input: 195-265VAC @ 50Hz
output: 12V 12A
Switching Frequency: 66kHz
Open case
Input Cap 180uF
--I designing a 12V 12A power supply with TOP250 , but something is very stange that the secondery winding is JUST 5 turns 125um copper foil !!!
does you guys think the software has determined correctly the number of secondery turn? because i think how is it possible to make 12V with just 5 turns?!!
-- also , i wanna change copper foil secondry to the multi wire , i change the the spec. in edit design but it looks like the software can not determine the equal multi wire instead copper foil ,
please tell me how can i change the copper foil which determined 125um to the 4 or 5 muliwinding wire?
-- software could not find a schotkey diode for secondry winding (it's undefinded) , what part number(s) are good for my application?
-- i wanna use an EE35-41 Core , but there is NO core like that , so i have to design by my self in leberary list
please tell me what is LEmm2 , BWmm , LTmm and BFWmm spec. , becuase there is NO info about these spec. in Datasheet
how can i mesure these spec. ?!
I have atached my PIexpert result
Await for your replaies
Thanks
Files
Attachment | Size |
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CV-12V-12A.uds | 228 KB |
Yes, secondary turns sounds correct. You have to appreciate the voltusec/turn (Webers) and core area and flux density is reasonable as is availble to review in PIXLS design tool. PIXLS does in fact have the parameters for EE35 core.