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From: "Klaus Vestergaard Kragelund"
References: <firstname.lastname@example.org> <email@example.com>
Subject: Re: Strange behaviour - core saturation puzzle
Date: Sun, 19 Jan 2003 16:55:01 +0100
X-Newsreader: Microsoft Outlook Express 6.00.2800.1106
Organization: TDC Internet
"Tony Williams" wrote in message
> In article <firstname.lastname@example.org>,
> Klaus Kragelund wrote:
> > My problem is that the test is done perhaps once a second and the
> > saturation current reaches some level - lets say 10amps. But if I
> > increase the frequency of the test - the saturation level moves down
> > to perhaps 8 amps. Does anyone have an explanation for this?
> It sounds like you need to do a better resetting
> of the core between pulses. Let it have a flyback
> voltage that is larger than just one diode drop.
> As an experiment try about 6 diodes in series, see
> if that changes the apparent ampere-turns at which
> the current curls upwards.
> Tony Williams.
Good suggestion - I'll try it back to work tomorrow :-)
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