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Terminated in academic year 2007/2008

Modern amplifier structures

Type of study Follow-up Master
Language of instruction Czech
Code 449-0390/01
Abbreviation MZS
Course title Modern amplifier structures
Credits 5
Coordinating department Department of Theoretical Electrical Engineering
Course coordinator doc. Dr. Ing. Josef Punčochář

Subject syllabus

Lectures:
OPA history; tubes, BJT, FET.
Basic transistor circuits; current mirror as an active load.

Voltage feedback OPA ( VFA; limitation current sources in the input stage).
Current feedback OPA (transimpedance - CFA).
VFA based on CFA.
Linear VFA applications.
Linear CFA applications.
Nonlinear OPA applications.
Principle of OTA, CCII, Northon amplifier. Princip vzorkovacích struktur.
Principle of stabilized voltage sources; bandgap reference.

Principle A/D and D/A convertors.
New amplifiers 1.
New amplifiers 2.

Exercises:
Basic properties of the input OPA differential stage; middle stage - frequency compensation; output follower - classical.
CFA input stage; modern follower.
Input stage of "VFA based on CFA" - module and phase responses.
Operational networks with ideal op amps (inverting, noninverting, integrator, derivator).
Examples of operational networks with nonidel OPA.
Examples of nonlinear operational networks - rectifier, logarithmic amplifier.

Definition and discussion - project.


Laboratories:
Determination of input offsets (voltage, current) influence on output voltage (small input signals); application of data sheets.
Measuring of OPA transient frequency.
Measuring of OPA slew rate.
Measuring of OPA large - signal bandwidth (output voltage amplitude is parameter).
Measuring of feedforward transmission in the 1. order operational network.
Current consumption as function of signal frequency and amplitude.
Project - discussion about solutions.


Projects:
EXAMPLE:

Analysis of feedforward transmission in the 1. order operational network.

Literature

Punčochář,J.: Operační zesilovače v elektronice. BEN, Praha 2002 (5. vydání)
Punčochář,J.: Operační zesilovače - historie a současnost. BEN, Praha 2002 Punčochář, J.: Low-Pass Filters SALLEN and KEY With Real Operational Amplifiers. In elektrorevue (elektronický časopis), 2005

Advised literature

Dostál, J.: Operační zesilovače. BEN, Praha 2005
Punčochář, J.: Lineární obvody s elektronickými prvky. Skriptum, VŠB-TU Ostrava 2002
Mohylová, J.: Lineární obvody s elektronickými prvky -Sbírka příkladů, VŠB-TU Ostrava 2002
Vobecký, J. - Záhlava, V.: Elektronika (součástky a obvody, principy a příklady). Grada, Praha 2001