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From: Chris Carlen
User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.0.1) Gecko/20020826
X-Accept-Language: en-us, en
Subject: Re: My flyback experiment is on the web
References: <3DAA0563.9040507@BOGUS.earthlink.net> <email@example.com>
Date: Tue, 15 Oct 2002 02:58:11 GMT
NNTP-Posting-Date: Mon, 14 Oct 2002 19:58:11 PDT
Nico Coesel wrote:
> Strange; I've designed a similar converter (48V in, 168V / 100mA
> @100kHz) but didn't have problems with the inductors. I've used 2
> newport power filtering 100uH inductors in series (didn't have 200uH
> at hand).
> I see there is also some ringing in your circuit. Did you try to put a
> small snubber accross the drain and ground? Did you also consider
> simulating the circuit?
I have simulated it, but with an ideal inductor and I haven't put the
IRF730 model in there. Just picked a FET out of a hat. I will try to
get the right FET model to deal with the output capacitance better, then
hopefully it will be more accurate. I don't know how to get a
non-linear magnetic device modelled yet.
Christopher R. Carlen
Suse 7.3 Linux 2.4.10
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