proper way to connect signle ended to differential circuits

[yefj]

Hello , I have a single ended PID and a vccs driver (differential )
What is the best way to connect the two, so the PID output will be driver input?
Thanks.

 

[barry]

with a single-ended -to-differential converter, maybe? maybe try am internet search

 

[yefj]

Hello I tried to put on input of the differential circuit to GND and the other input to the output of the PID.
but its not working.
Where did i go wrong?
LTspice file is attached.
Thanks.

 

[D.A.(Tony)Stewart]

obvious fault

 

[FvM]

In addition, integrator U1 has no stable operation point without overall DC feedback. Gain measurement setup must provide it.

 

[barry]

there are probably HUNDREDS of differential-output opamps out there. Go find one.

 

[FvM]

What's the reason to use a differential driver for a floating coil? Is it required voltage swing?