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Variable current sense, will this work?

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Hi,

Your circuit:
No. A current source (in this circuit) connected to GND can not create a "pull up" current.
It only can pull down.
--> Connect it to postive supply instead.

Integrator:
In your case the input to the "integrator" is positive or in best case zero.
Any integrator output would go in one direction only until it saturates.
Due to the lack of negative input it has no chance to come back.

Thus ... if there was a true integrator .... the circuit could never work.

Klaus
 
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    Swend

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