Anomalie #194
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Noise from MOSFET/Shunt/Feedback in the control
Added by François Cerbelle almost 4 years ago.
Updated almost 4 years ago.
Description
Noise from the feedback becomes visible in the control circuit when strong enough. It is then amplified by the AOP, comes back to the feedback, and to the control, ...
Add a low-pass filter on the OpAmps N.I. pins to remove noise received from everywhere (including from the feedback) by the control circuit
- Target version deleted (
1.1)
- Target version set to 1.1
- Estimated time set to 10:00 h
The noise was probably due to the feedback amplification (0..0.075V to 0..5V). I switched the MOSFET driver and feedback to 0..075V Let's see in the next PCB batch
- Status changed from Nouveau to Résolu
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