420-4002/01 – Modern Amplifier Structures (MZS)
| Gurantor department | Department of Electrical Engineering | Credits | 5 |
| Subject guarantor | doc. Dr. Ing. Josef Punčochář | Subject version guarantor | doc. Dr. Ing. Josef Punčochář |
| Study level | undergraduate or graduate | Requirement | Optional |
| Year | 2 | Semester | winter |
| | Study language | Czech |
| Year of introduction | 2010/2011 | Year of cancellation | 2022/2023 |
| Intended for the faculties | FEI | Intended for study types | Follow-up Master |
Subject aims expressed by acquired skills and competences
After completing this course, the student should be able to
analyze and construct linear circuits (amplifiers, filters, oscillators) with real active circuit elements:
operational amplifier;
transconductance amplifier;
transimpedance amplifier;
current conveyor
Teaching methods
Lectures
Individual consultations
Tutorials
Experimental work in labs
Project work
Summary
Basic properties of active tripoles(BJT, JFET, MISFET). Description of basic
modern op amps function blocks (differential input amplifier, current mirror as
an active load, modern complementary follower)-their application in modern
amplifier structures (voltage feedback amps - VFA, current feedback amps - CFA,
transconductance amps - OTA, VFA based on CFA,current conveyors - CC, etc.) -
their basic application circuits.
Compulsory literature:
Horowitz,P.- Hill,W.: The art of electronics, Cambridge University Press
Recommended literature:
Mohylová,J. - Punčochář,J.: Theory of electronic circuits, VŠB - TU Ostrava, 2013
Way of continuous check of knowledge in the course of semester
Evaluation criteria are oriented on outputs allowing:
• Reports from selected measurements processed on the base of measured values from these measurements and their subsequent processing, completing and assessing.
• Continuous verifying of student knowledge in the numerical exercises in a form of debate and inquiries to achieve student active participations in study process. Identify, deduce and search of problem solving and their interpretation by students.
• Tests and problems from numerical exercises, eventually from chosen theoretical circuits
• Term work and projects on a given theme on the basis of selection, investigation, ordering and final compilation of facts and their processing into final form of given theme.
E-learning
Other requirements
Any additional requirements aren't for student
Prerequisities
Subject has no prerequisities.
Co-requisities
Subject has no co-requisities.
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.
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.
Conditions for subject completion
Occurrence in study plans
Occurrence in special blocks
Assessment of instruction