Re: Big Ferrite Transformer (fwd)

[Steven Roys <sroys@xxxxxxxx>]

---------- Forwarded message ----------
Date: Wed, 7 Apr 2004 23:55:56 -0400
From: Virtualgod <mike.marcum@xxxxxxxxxxxx>
To: High Voltage list <hvlist@xxxxxxxxxx>
Subject: Re: Big Ferrite Transformer (fwd)

depends on material. The cores I have are actually most efficient at 60C
(according to the datasheet) and have a curie temp of 230C, almost hot
enough to melt most solder.
----- Original Message -----
From: "High Voltage list" <hvlist@xxxxxxxxxx>
To: <hvlist@xxxxxxxxxx>
Sent: Wednesday, April 07, 2004 4:29 PM
Subject: Re: Big Ferrite Transformer (fwd)


> Original poster: Steven Roys <sroys@xxxxxxxx>
>
>
>
> ---------- Forwarded message ----------
> Date: Wed, 07 Apr 2004 16:54:33 +0930
> From: Matthew Smith <matt@xxxxxxxxxx>
> To: High Voltage list <hvlist@xxxxxxxxxx>
> Subject: Re: Big Ferrite Transformer (fwd)
>
>
> > From: John Keith <jskeith@xxxxxxxxxxxxxxx>
> > Size-wise I'd say kilowatts, but I would advocate testing at different
> > voltages and frequencies for best operation. I use a hefty audio amp
driven
> > by a signal generator for such testing, but you could also use a
> > TL494-driven bridge powered from a rectified and filtered variac.
>
> Hmm.  Think I'll go with the Variac idea - just need to knock together a
BIG
> bridge.  How does "if it's too hot to touch, you're overloading it" sound
as a
> way of guestimating the power handling of a core?
>
> Cheers
>
> M
>
> --
> Matthew Smith
> Kadina Business Consultancy
> South Australia
> http://www.kbc.net.au
>
>