For instance... On Semi FDD3N40 or FDU3N40... 400V / 2 A / 30W in DPAK or
TO-251... I usually have a few FDD3N40 on hand and have used them in
multiple designs. There are of course many good alternatives!
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Hi Paul,
I also like the "simple" current sink circuit approach, but it usually
takes a few more parts to get a stable circuit... the most basic design
with just a resistor, transistor and op amp tends to "sing"! And there's
also some parts selection to be done.
See Linear Tech
I also like the simple current sink circuit approach, but it usually takes
just a few more parts to get a stable circuit... the most basic design with
just a resistor, transistor and op amp tends to "sing"!
See Linear Tech Application Note 105, figure 200 on page 108:
I think that, as David says, an OTA is the ideal solution for you... a
small opamp, plus a MOSFET or a bipolar transistor, with a reasonable
heatsink will do fine.
On Thursday, November 22, 2018 at 2:44:01 PM UTC-3, Paul Andrews wrote:
>
> Hi
>
> I’ve been looking for an electronic dummy load
