Re: rectifier

In article <S82dna8u6rMwgILbnZ2dnUVZ_rSjnZ2d@xxxxxxxxxxxx>, "Bryan" <bryan.swadenerNOSPAM@xxxxxxxxxxx> wrote:
GregS wrote:
P.Gregory wrote:
Wise?
I could put just as many links saying the opposite , as in series , Not
parralel and not paraletic , few few ohms aint gunna do what you yanks
say
"diddly squat" unless you get perfect diodes , read as matched ..paul



Bryan wrote:
It would be wise to NOT use load-sharing (aka equalizer) resistors &
capacitors. With modern rectifiers, if more than one diode is in a
string,
there will be no problem as long as they are of the same type number.
See
http://www.somis.org/D-amplifiers3.html.
73,
Bryan WA7PRC

P.Gregory wrote:
Also do not forget load sharing resistors and bypass caps...
GregS wrote:
I am having some difficulty finding a bridge rectifier of 3 Kv and 3
amps.

??

thanks
greg
N6GS

I think I am willing to try using them without caps and resistors.
I allready have 1KV 3 A HER308's. And I have a bunch of thermal
epoxy. I just might purchase some of these to make things easier.

http://www.fairchildsemi.com/ds/FF%2FFFPF04F150S.pdf

greg

The HER308 looks like a 1N5408 with a specified reverse recovery time. I
like specifications those FFPF04F150S damper diodes. Digi-Key has them
available in only large quantities (non-stocked) but Mouser shows them
in-stock in small lots. Not knowing the dielectric capability of the plastic
TO-220 case, I'd probably mount them (with heatsinks) to an insulating base.

i was trying to get an order together and ordered all parts from Digikey. I got into
discussion with support, and I said the catalog could be a lot smaller and easier
to hold if they listed stocked parts. From the very beginning I always had problems
with DigiKey with stocked parts. Ordered the diodes from Mouser. Nice that many companies
have no minimum orders. That was a big deal years ago.

greg

.

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