CCS Using IRFP140N

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I want to build a 3A current sink (connect to a -12v supply).

I will be using a 0.2 ohm sense resistor. What is the best circuit to use that is stable and has a good bandwidth?

The power supply is a pure DC supply so no filtering in the CCS is needed.

Any help would be apreciated.

Simple is good too.

Maybe a MPSA18 to sense the 0.5-0.6v

?

Richard
 
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