[Milsurplus] FET regulator

[n2lxm at juno.com]

Good Afternoon All,



        I have a small (30) supply of IXGH25N120 IGBT Fets. These are
1,200 Volt 50 Amp( in switch mode), TO-247 case devises. If anyone would
like two to play around with, e-mail me. Just cover the cost of postage.
So the first fifteen replies get them.

        PS. I may have more in the pipe line.


                                                    Jeff N2LXM
                                                      American
                                                        Patriot
                                     Proud Father of Two US Marines

On Fri, 7 Apr 2017 12:20:31 +0000 (UTC) elden meyer via Milsurplus
<milsurplus at mailman.qth.net> writes:
> Good Morning Dave and group,
> 
> I have used a circuit similar to that which Dave shared with
> good results in both high and low voltage applications. In
> addition to giving some regulation it is a handy way to
> use a transformer having excessive secondary voltage.
> The input can be directly from the rectifier, unfiltered, and
> the necessary filtering after the FET.
> 
> Should anyone wish to try this approach I have a supply
> of these zener diodes available:
> 1N4743 - 13 Vz
> 1N4747 - 20 Vz
> 1N4750 - 27 Vz
> 1N4753 - 36 Vz
> 1N4757 - 51 Vz
> To encourage further developments I will send a reasonable
> quantity of any/all types to those interested for the cost of
> postage. Obsolete switching supplies are a good source of FETs.
> 
> Elden
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