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Old 15th June 2003, 02:53 PM   #61
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Yup! Hope this helps with your PSU.
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Old 16th June 2003, 04:17 AM   #62
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Default Re: 2.5 in. Toroids!

Quote:
Originally posted by N-Channel
2.5" o.d. Cores??? WOW!
Check out magnetics TC47313 cores... ...2.75 inch dia!

-Dan
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Old 16th June 2003, 08:37 AM   #63
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I just found the magnetics site then and it seems they've got an Australian distributer
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Check out magnetics TC47313 cores... ...2.75 inch dia!
The 48613 is 3.375inchs ! I've sent an e-mail to them to see if they've got any of the 2.4inch and greater cores.
I might be able to pull this project off with a single core yet
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Old 17th June 2003, 08:49 AM   #64
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I got in contact with the AUS reseller and they've got some of the 3.375 inchers
I'm so happy lol
I know it'll probly meet my power requirements but how much would a core like this put out?
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Old 17th June 2003, 12:45 PM   #65
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Quote:
Originally posted by fr0st
I got in contact with the AUS reseller and they've got some of the 3.375 inchers
I'm so happy lol
I know it'll probly meet my power requirements but how much would a core like this put out?
Not exactly sure, but I'm guessing well over 10kW... .

I'm guessing that the size of the core may make it difficult to use.

What material type are you looking at? I've used the P type. Any ferrite should be good. Look at core losses vs operating frequency for the frequency you'd like to use.

-Dan
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Old 18th June 2003, 06:04 AM   #66
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The company has the P and J (I think) type. P has no coat and the J is coated but has a permability of 5500u. The P is about 2500u so I'm going to order that since n channel used near that before.
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Old 18th June 2003, 08:40 PM   #67
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Talking 2500u

Yep. The cores from Amidon worked great. I finally figured out how to get the power supply pics under 100k in order to post. When I get home tonight, I will post them.

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Old 19th June 2003, 01:42 AM   #68
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Quote:
Originally posted by fr0st
The company has the P and J (I think) type. P has no coat and the J is coated but has a permability of 5500u. The P is about 2500u so I'm going to order that since n channel used near that before.
The p type has some nice characteristics. It actually increases efficiency until you get the temp over 120C. I've never even actually been able to heat one up that hot!

-Dan
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