ELECTRONICS AND INSTRUMENTATION (UNIT ELECTRONICS)
Learning outcomes of the course unit
The course aims at providing an in-depth understanding of the operation of non linear, autonomous circuits such as multivibrators and quasi sinusoidal oscillators.
The final part focuses on noise and filtering techniques for reducing its effects.
Fondamenti di Elettronica A, Fondamenti di Elettronica BC
Course contents summary
Stability of circuits including negative resistances. Large signal analysis, trajectories in the I-V plane, limit cycle oscillations. Application to the analysis of astable, monostable and bi-stable circuits.
Quasi-sinusoidal oscillators: analysis by the describing function method. LC and RC oscillators. Stability of oscillation amplitude and frequency, quartz oscillators. Three points oscillators (Colpitts, Hartley,...)
Noise and filtering
Physical origins of noise: Johnson, shot, 1/f.Equivalent representations of a noisy two-port. Noise figure of an amplifier. Noise matching.Phase noise in oscillators.
Techniques for S/N improvement. Continuous, time invariant filters. Active filter synthesis (Butterworth, Cebiceff). Inductance simulation using gyrators. Resistor simulation in SC filters. Gm-C filters.
P.U. Calzolari, S. Graffi, “Elementi di Elettronica”, Zanichelli
T.H.Lee The design of CMOS RF integrated circuits, Cambridge University Press
Exercises Simple exercises are solved during the lectures. Homework. An experimental activity is developed in cooperation with the course of Sensors.
There is a single examination covering both the teaching modules of Electronics and instrumentation. The evaluation is based on homework (1/4), experimental activity (1/4), oral examination (1/2)