Opto, by a 6n135.

At 11:49 26/4/2007, you wrote:
>On 4/26/07, rlistas <rlistas@gmail.com> wrote: > Hi Gerhard, > > I pay her=
e (Brazil) about 10U$ each. > It was the best solution possible for my desi=
gn because > I need a 0 - 100 % duty cycle variation, and is very robust. >=
 It drives four 500V 37A mosfets in parallel. > It=C2=B4s 2KW DC/DC Buck co=
nverter. > > Best Regards, > > Rubens > > Rubens, Is your driver opto-coupl=
ed, magnetically coupled, or do you have some sort of logic level shifter? =
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