Re: Ferrite question



Michael wrote:

On Aug 4, 8:22 pm, Eeyore <rabbitsfriendsandrelati...@xxxxxxxxxxx>
wrote:
Michael wrote:
How much heat is dissipated in deeply saturatedferrite? I am playing
with home cooked series trigger transformer. It does get hot.
The wire (fairly thin) does not seem to get hot (as long as I can
judge by back side of my pinkie)

The data sheets will give you the figures. Losses vary widely with flux
and actual temperature.

Graham

Hmmmmmmmmmmmmmmm...
It's all good.

My application is kind of unusual. It's series trigger transformer
(1:50 primary:secondary). I hit primary with 200V, initiate spark and
then discharge big cap through the secondary.
Most of the current flows when ferrite is completely saturated. First
(heating) transformer was wound by our tech, second (one that's
running cool) - by me.
Yes, buying series trigger transformer would be logical, but the
manufacturer I contacted is not in a rush to get back to me (can you,
guys, recommend somebody).
The system works (kind of...), but I cannot explain the waveforms I am
getting. I do not know how to make a website to place the pictures
on... Any suggestions how to share the pictures???
Thanks

First off, what's the repetition rate. You may have nothing to worry about if
it's low.

Graham


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