Constant current sink - LM324 with 2 MOSFETS in parallel on output - will it work?

[lee321987]

I want to use two MOSFETS in parallel, with both of their gates being driven by a single output from and LM324.

Is there any reason this is not a good idea? If so, is there anyhting i can do to make it work?

Schematic attached:

 

[FvM]

If you don't worry about unequal current share of both transistors due to Vgs differences, the circuit should work. For perfect current balance, two OPs and two current sense resistors are required.

 

[dick_freebird]

I would be concerned about stability and response to load variation,
the LM324 output is weak and the FET gate capacitance can be
very large. The gate drive network might want some thought there.