• Cours (CM) 12h
  • Cours intégrés (CI) -
  • Travaux dirigés (TD) 12h
  • Travaux pratiques (TP) -
  • Travail étudiant (TE) 12h

Langue de l'enseignement : Anglais

Description du contenu de l'enseignement

For quadrupole part: voltage, current and power amplifiers. Input and output impedances, amplification factor. Impedance adapter amplifier (follower amplifier).Decibels, voltage and power gain factor. Application to an audio amplifier chain connected between a vinyl disc reader and a loudspeaker.
For complex modeling part: First order R,C circuits : harmonic response (both trigonometric and complex form), magnitude and phase. Transfer function. Complex impedance. Circuit computation in complex form. Relationships between complex and temporal forms. Low-pass and high-pass filters.
Bode diagram: computation, measure and utilities. Second order filters. Band-pass filters, Cut-off frequency, damping factor. Three applications: RIAA filter, audio power amplifier model extracted from datasheet, 2 ways loudspeaker filters. Functional simulation with xcos(scilab).

Compétences à acquérir

At the end of this subject the student will be able to: For complex modeling, use the superposition theorem in order to compute a voltage or current in case of a single source which included the sum of different sinusoidal components (amplitudes, frequencies) or different sources; computes modulus and argument as a ω function from a given a transfer function; compute the temporal expression of the output from a given a transfer function and the temporal sinusoidal input expression; compute the output for a sum of sinusoidal inputs at different frequencies (superposition theorem); compute and draw the asymptotic gain and phase Bode diagrams from the transfer function equation; draw the look of the real Bode diagrams started with asymptotic drawing; compute the remarkable points of a Bode diagram; compute transfer function for a cascade of functional blocks or and additive one; use the Bode diagram to compute the temporal response to an additive combinaison of sinusoidal inputs; write and recognize the canonical transfer function of the second order filters (low,high, band-pass); find real poles of a second order denominator (place them on a Bode diagram), find frequency and gain for max gain point of the second order low-passfilter; compute the bandwidth as a function of Q and ω0 (band-pass); compute the slope on the gain asymptotic diagrams, limits on phase diagram For quadrupoles, draw or recognize a quadrupole model and identify its components ; compute (simple cases) and measure the different elements value of a quadrupole (DC and complex mode) ; compute voltage, current and power amplifications ; use of dB, dBv and dBmV ; understand and recognize an impedance adaptation problem ; Understand the model of an ideal follower amplifier ; understand the filter block representation ; transform a component circuit in a filter block representation.

Pré-requis obligatoires

Electrokinetics, Ohm's law, voltage divider, Thevenin's theorem, ... are supposed to be known.


Faculté de Physique et Ingénierie


Formulaire de contact


Robin Merine

Shamil Gudavasov

Gulnaz Gahramaova

Ali Huseyn Dovlatov

LICENCE - Sciences de la Terre