Actions
Anomalie #194
openNoise from MOSFET/Shunt/Feedback in the control
Start date:
07/02/2020
Due date:
% Done:
0%
Estimated time:
10:00 h
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, ...
Updated by François Cerbelle over 4 years ago
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
Updated by François Cerbelle about 4 years ago
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
Updated by François Cerbelle about 4 years ago
- Status changed from Nouveau to Résolu
Actions