10-03-2025: Electronics 8#
Date: Monday, March 10 2025
Location: Flux Hall A (39.00.00.500)
Time: 10:45 - 12:30
Question of the day
How do we account for the noise of the feedback networks?
Noise behavior of negative feedback amplifiers#
Noise performance of feedback amplifiers
In general, insertion of impedances in series and/or in parallel with the signal path should be avoided. They increase:
Energy storage and power losses
Noise
Presentation
The presentation "Influence of Feedback Networks on Noise Performance of Negative Feedback Amplifiers" shows that detrimental effects caused by impedances in the feedback networks can be kept low.
Presentation in parts
Influence of Feedback Networks on Noise Performance of Negative Feedback Amplifiers (parts)
Video
Noise behavior of negative feedback amplifiers (19:42)
Study
Chapter 7.4, 7.5
Exercises
Downloads#
Exercises#
Homework#
Assign values for the feedback elements of the receive amplifier of the hearing loop system.
Determine the show-stopper values for the equivalent-input noise voltage spectral density and the equivalent-input noise current spectral density of the transmitter and receiver controller for the above assigned values of the feedback elements.
See Homework support