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Keyword
Original Message
Topic Resonant converter split bobbin 
Power
Supply
Message

I am searching for a high isolation split bobbin for an LLC converter (AKA series resonant converter).

Looking for the 4 following sizes:
a) ETD34
b) ETD39
c) ETD44
d) ETD49

Delta Electronics sells the finished transformer, but we are in need of the bobbin manufacturers name and contact info.
 
Date 6/5/2008 11:54:58 AM 
Author Dave L. 
Pageviews 2468 
      

 

Responses
Response topic Resonant converter split bobbin  
Message we can supply these raw materials, cicely@szhighstar.com
 
Author szhighstar 
Date 9/8/2016 5:58:39 AM 
 
Response topic Resonant converter split bobbin  
Message
Best sources identified for ETD34 and ETD 39 are:
Winshine
Pinshine

The ER2828 size (EC2828 size) is a bit smaller than the ETD34, and cores and bobbins are available in China, but a bit difficult to track down unless you have a contact there. Core availability good (DMEGC makes it, as well as others), but the split bobbin is hard to find.
 
Author Dave L 
Date 1/5/2016 11:21:01 AM 
 
Response topic Resonant converter split bobbin  
Message
Dave,

Do you need these bobbins in a hurry?, I can provide you with those bobbins manufactured in China in 155C (class F) material, just let me know your estimated usage.

Regards,
Eric Garcia
ericg@prodigy.net.mx
 
Author Eric G 
Date 10/30/2008 1:01:18 PM 
 
Response topic Resonant converter split bobbin  
Message
Dave,

What is your estimated annual usage (or one-shot) for these bobbins?
 
Author eric g 
Date 10/30/2008 12:45:46 PM 
 
Response topic Resonant Converter Split Bobbin 
Message
JB,

We are working with the 1/2 x 1/2 sq center leg US core size with either Cosmo or Miles Platts bobbins currently up to about 275W. At higher power levels the 5/8 x 5/8 sq ceter leg US core size also has bobbin availability from Cosmo and Miles Platts.

Pulse Engineering appears to have tooled their own LLC ETD series bobbins, check out:

http://www.onsemi.com/PowerSolutions/evalBoard.do?id=NCP1605LCDTVGEVB
 
Author Dave L. 
Date 10/20/2008 8:57:54 AM 
 
Response topic LLC 
Message
Hi Dave, I'm looking for the same thing. Where you able to find one?
 
Author JB 
Date 7/17/2008 10:06:16 PM 
 
Response topic Resonant converter split bobbin  
Message
Try Norwe I think they have split bobbins
for the ETD series.

www.norwe.com
 
Author smpsguy 
Date 7/1/2008 4:52:16 PM 
 

 




 
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