Feed-Forwads: crosswired op-amp

OxfordIonTrapGroup / stabilizer_current_sense

Low-noise current sense mezzanine for Stabilizer

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Open pathfinder49 opened 4 years ago

pathfinder49 commented 4 years ago

The feed-forwads-loop feed-back has a sign error. This causes IC8 to rail at +12V.

Screenshot from 2019-10-28 18-39-34

The feed back sign can be corrected by cross wiring R29 and R31. Screenshot from 2019-10-28 18-40-47