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To: techdiver@opal.com
Subject: DIVELIGHTS. Inrush Current Limiter Update.
From: john 015 <CC015012@BR*.br*.ed*>
Date: Sat, 11 Mar 95 20:20:35 EST
Hi,

it's totally unclear to me how many of the readers of this list
are trying to brew their own divelight/divetorch current limiter based
on the "plans" that I provided to those who requested it.

My circuit was developed to work with a particular MOSFET that I supplied
in my parts kit. In light of this I must state that the circuit as
described in my file conveys an idea more than a workable solution to
the problem.

I have been testing a new MOSFET: The IRFZ40.
The IRFZ40 is a damn rugged MOSFET and I've managed to have a single
IRFZ40 switch with good control (doesn't get too hot) 65 Watts bulbs.
However, the IRFZ40 with the old limiter circuitry, proved only
20% effective in reducing the inrush current from it's theoretical
maximum. This is an exceptionally lousy result so I felt it prudent
to warn people that just rolling your own in this case without carefully
optimizing/matching the circuit to the actual MOSFET that's being
used could just be an exercise in futility.

Best,
john
cc015012@br*.br*.ed*

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