1st degree and Bachelor-level of the Bologna process in Ingegneria Elettronica - Torino 1st degree and Bachelor-level of the Bologna process in Electronic And Communications Engineering (Ingegneria Elettronica E Delle Comunicazioni) - Torino 1st degree and Bachelor-level of the Bologna process in Ingegneria Fisica - Torino
This course is taught in English.
The aim of the module is to learn to analyze and design circuits that are the base of today's electronic analog and digital systems. Building on the foundations provided by previous courses of electrical engineering, electronic devices and circuits, the operational amplifiers are first introduced and used in linear and nonlinear applications. The second topic covers linear and switching power supplies. Then we study the basic modes of operation of switching transistors and use them to analyze the structure of logic gates. The analysis of data acquisition systems completes the module.
This course provides the methods, understanding, and skills necessary to analyze and design the circuits that form the basis of today's analog and digital electronic systems. The professional knowledge acquired in this course is useful both for those who will start their professional activity and for those who will continue as students, extending the study of the topics of this course.
The course builds on knowledge from previous studies, particularly in electrical engineering and electronic devices and circuits. The course focuses on practical aspects of electronic design, including:
- Main functional blocks and the inner workings of operational amplifiers.
- Main limitations of operational amplifier operation (static, dynamic, frequency response, power dissipation).
- Main applications using operational amplifiers with linear and non-linear transfer functions.
- The basics of transistor switching.
- Design and operation of linear and switching power supplies.
- Structure, behavior, and performance of various logic gate implementations.
- Basic structure, design, and problems of data acquisition systems.
The theoretical study is complemented by:
- Exercises to deepen understanding of the theory.
- Design examples that introduce typical engineering approaches and the rationale for decisions made when implementing electronic circuits based on specifications.
- Hands-on laboratory experiments that teach how to use laboratory equipment to verify and troubleshoot the operation of electronic circuits used to experimentally verify theoretical aspects learned in class.
Become familiar with analog electronics and electrical aspects of digital electronics.
Design small analog systems from specifications.
Design simple power supplies for electronic circuits.
Design a digital circuit and the interface between it and a load.
Understand the classic data acquisition systems and know how to design then from specifications.
By the end of the course, you will be familiar with analog electronics and the electrical aspects of digital electronics, and will be able to:
- Analyze and understand the operation of basic analog circuits.
- Design small analog systems to specification.
- Design simple power supplies for electronic circuits.
- Design a digital circuit and interface it to a power load.
- Understand the characteristics of traditional data acquisition systems and how to size them based on specifications.
The student must know the theory of electrical networks, their time domain frequency domain analysis, the operation in the linear region of bipolar transistors and MOS, the concept of bias and small signal. He/she also needs to know the basic concepts of signal theory and feedback. As for the experimental exercises, the student should have gained some familiarity in using laboratory equipment (oscilloscope, power supply, signal generator).
Students must understand the theory of electrical networks, their analysis in the time and frequency domains, the linear operation of bipolar and MOS transistors, the concept of bias and small signal operation, and have a basic understanding of signal theory and feedback.
Laboratory experiments require familiarity with the operation and use of laboratory instruments: oscilloscope, power supply, and signal generator.
Operational amplifiers (4 CFU)
- structure of operational amplifiers with BJT and MOS: current mirror, differential stage, power stage. Power amplifiers with discrete components
- Parasitic parameters of operational amplifiers, frequency response, stability
- Linear circuits: amplifier, adder, instrumentation amplifier
- Active filters: first order, second order, higher order; switched capacitor filter
- Non-linear circuits: logarithmic amplifier, ideal diode
- Threshold comparators, waveform generators, VCO
- Sinusoidal oscillators: the Wien bridge, phase shift oscillator, three-point
'
Power supplies (1,5 CFU)
- Traditional structure with dissipative controller
- Switching regulator
Logic gates and switching circuits (2 CFU)
- Bipolar and MOS switching transistors, switches, transmission gates, CMOS gates
- Static and dynamic parameters of logic families, open drain and tri-state outputs, Schmitt trigger inputs
- Interfacing with loads and optical isolation
- And-Or-Invert ports, dynamic logic
- Basic sequential circuits (latches, flip-flops, counter); dynamic behavior
Data Acquisition Systems (1 CFU)
- Elements of sampling theory, quantization; D / A converter (potentiometric, weighted resistors, R-2R ladder); A / D converter (flash, successive approximation, tracking); Sample & Hold (integrating)
Operational amplifiers (4.1 CFU)
- Design of operational amplifiers with bipolar and MOS transistors: current mirror, differential stage, power stage.
- Operational amplifier parasitics, frequency response, stability.
- Linear circuits: amplifiers, adders, instrumentation amplifiers.
- Discrete power amplifiers.
- Active filters: first-order, second-order, higher-order; switched capacitor filters.
- Non-linear circuits: logarithmic amplifiers, ideal diodes.
- Threshold comparators, waveform generators, voltage controlled oscillators.
- Sine Oscillators: Wien bridge, phase shift, three-point.
Power supplies (1 CFU)
- Traditional structures with dissipative regulators.
- Switching regulator based structures.
Logic gates and switching circuits (2.1 CFU)
- Bipolar and MOS switching transistors, switches, transmission gates, CMOS gates.
- Static and dynamic parameters, logic families, open-drain and three-state outputs, Schmitt trigger inputs.
- Power load interfaces and optical isolation.
- And-Or-Invert gates, dynamic logic.
- Basic sequential circuits: latches, flip-flops, counters; dynamic behavior.
Data acquisition systems (1 CFU)
- Review of sampling theory, quantization.
- Digital-to-analog converters: potentiometric, weighted resistors, ladder network.
- Analog-to-digital converter: flash, successive approximation, tracking.
- Sample-and-hold (integrator).
The course includes 8 two hours (1,5 CFU) experimental laboratory exercises to be performed at the LED. The labs are organized in groups of three or four students. For each lab group must prepare reports that are evaluated by the instructor and constitute part of final examination mark.
1. Operational amplifier characteristics;
2. Active filter;
3. Instrumentation amplifier;
4. Triangular wave generator;
5. Dissipative voltage regulator;
6. Switching converter;
7. Characteristics of logic gates;
8. D / A converter
The course is delivered through classroom lectures and exercises (8.2 CFU) and experimental laboratory work (1.8 CFU).
Six experimental lab activities are scheduled throughout the course in the LED labs. The laboratory activity must be carried out in groups of no more than four students, who must work together at all stages in order to develop teamwork and collaboration skills.
Every lab project consists of two parts: design and experiment. Students are given general instructions on how to perform lab experiments and write a lab report, as well as a detailed description of each lab session they will perform to guide them:
- Design the necessary parts of the experiment.
- Perform the hands-on experiments.
- Write the final lab report.
Lab reports are graded to determine the lab grade. They must be prepared jointly by the students in each group and uploaded to the Elaborati tab of the course portal at http://didattica.polito.it/ within the specified deadlines. Reports are graded based on:
- Completion of the assignment.
- Quality of preparatory and experimental work.
- Quality and thoroughness of the presentation of the design and experimental work.
- Quality and thoroughness of the discussion of the results.
The average of the lab grades will contribute 20 % to the final exam grade (see "Grading Criteria" section).
The topics of the lab assignments are:
1) Operational Amplifier Characteristics, which covers the operation of the main blocks of operational amplifiers, as well as their limitations.
2) Characterization of instrumentation amplifiers, covering linear operation applications of operational amplifiers, as well as their limitations.
3) Active filter design, covering the frequency response of operational amplifier circuits and the effect of component tolerances.
4) Triangle and square wave generator, covering non-linear applications of operational amplifiers and limits.
5) Asynchronous counter, which covers the electrical behavior of logic gates and switching transistors.
6) Digital-to-analog converters, covering data acquisition systems and related issues.
Several lecture notes in Italian covering almost the entire contents of the module are available on the official Politecnico website, where it is also possible to download the specs of the experimental exercises. For further details and discussions the recommended text is: Sedra / Smith, "Microelectronic Circuits", 5th ed. Oxford University Press. ISBN 0-19-514252-7
Lecture notes are available on the course portal, along with instructions and materials for labs and exercises (including solutions).
For in-depth information and discussion of course topics, the following textbooks are recommended:
- Adel S. Sedra and Kenneth C. Smith, "Microelectronic Circuits," 7th Edition, Oxford University Press, 2015. ISBN 978-0199339143.
- R.C. Jaeger, T.N. Blalock, & B.J. Blalock, "Microelectronic Circuit Design," 6th Edition, McGraw-Hill Education, 2018. ISBN 978-1264602711.
- Sergio Franco, "Design with Operational Amplifiers and Analog Integrated Circuits," 4th Edition, McGraw-Hill Education, 2015. ISBN 978-0078028167.
- Neil Storey, "Electronics: A Systems Approach," 4th Edition, Harlow, England; New York: Pearson/Prentice Hall, 2009. ISBN 978-0273719182.
Slides; Dispense; Libro di testo; Esercizi risolti; Esercitazioni di laboratorio; Video lezioni dell’anno corrente; Video lezioni tratte da anni precedenti; Strumenti di simulazione; Strumenti di auto-valutazione;
Lecture slides; Lecture notes; Text book; Exercise with solutions ; Lab exercises; Video lectures (current year); Video lectures (previous years); Simulation tools; Self-assessment tools;
Modalità di esame: Prova scritta (in aula); Prova orale facoltativa; Elaborato progettuale in gruppo;
Exam: Written test; Optional oral exam; Group project;
...
The examination consists in a written exercise (time available: 30') which followed by an oral test (two questions). The written exercise is corrected at the beginning of the oral test.
No textbooks or notes are allowed during the written exam. The mark obtained in the written exercise and oral test accounts for 80% of the final examination mark. The remaining 20% derives from the average of the evaluations of the reports of experimental exercises. This average is calculated on the best six reports of each student. If the student has made less than six reports, the missing reports are mediated by the value 0 / 30.
Gli studenti e le studentesse con disabilità o con Disturbi Specifici di Apprendimento (DSA), oltre alla segnalazione tramite procedura informatizzata, sono invitati a comunicare anche direttamente al/la docente titolare dell'insegnamento, con un preavviso non inferiore ad una settimana dall'avvio della sessione d'esame, gli strumenti compensativi concordati con l'Unità Special Needs, al fine di permettere al/la docente la declinazione più idonea in riferimento alla specifica tipologia di esame.
Exam: Written test; Optional oral exam; Group project;
The final exam tests the acquisition of the following skills:
- Knowledge and understanding of the listed course topics.
- The ability to apply theory and computation to problem solving.
- Practical laboratory skills and technical report writing.
The final exam is written and can last up to 2 hours and 30 minutes. It consists of 4 problems and 8 quizzes from any of the listed course topics.
The problems test the student's knowledge and understanding of the topics covered in the course (in lectures, exercises, and laboratory activities). Specifically, they test the student's ability to select, combine, and apply the broader theoretical knowledge, including calculations and engineering decisions, to solve simple and often practical problems similar to those typically encountered in electronic circuit and system design. The 4 problems are worth a maximum of 22 points.
The quizzes test both knowledge and depth of understanding of all course topics. Each quiz consists of one question and four predefined answers. Although only one answer is correct, all are designed to appear plausibly correct unless the student has a thorough understanding of the course material. Quizzes with correct answers are worth 1 point each, while quizzes with incorrect answers are worth 0 points each.
No outside sources of information (slides, notes, books, phones, other people, headsets, PCs, programmable calculators, etc.) may be used during the exam. Only non-programmable calculators are permitted.
The maximum exam score is 30. The grade must be at least 60 % (18 points) to pass, regardless of the lab grade.
For each laboratory session, each participating group of students must submit a report on the actual experimental work. Grading will be based on the application of course material to the experimental work, the consistency of the experimental design with the design objectives, the use of appropriate methodology, instrumentation, and settings, and the thoroughness and quality of the measurements, presentation, and discussion (from assignment objectives to conclusions), as well as personal involvement. The final lab grade is the average of the top 5 out of 6 report grades for each student. If less than 5 reports are available, the missing reports receive 0 points. The maximum lab grade is 10 and is valid indefinitely.
The maximum final score is 30 points. It is made up of the exam grade up to 25 points and the lab grade up to 5 points, as follows: final = exam * 25/30 + lab * 5/10.
Only those students who score at least 60 % on the exam (18 points before scaling to include the lab score) may request, with proper justification, to be admitted to an oral examination at the professor's discretion in an attempt to improve their exam grade. The oral exam consists of up to 4 theoretical questions or simple problems to be solved and discussions on related topics, and is designed to test the acquisition of the same skills as the written exam. Each topic of the oral exam will be graded separately, from -3 to +3 points, with positive marks for correct answers and negative marks for incorrect answers, including the discussion. The scores for all topics are averaged to produce an oral score, which is then algebraically added to the written score. If the total score is at least 60 % of the maximum 30 points (at least 18 points), the exam is passed with the resulting grade. Below 60 %, the exam is failed. A score above 30.5 adds "cum laude" honor to the maximum score of 30.
An additional oral examination after the exam may also be required by the professor to verify the knowledge demonstrated on the exam. The structure and grading of this oral exam will be the same as the one requested by the student, except that in this case the oral exam grade can only reduce the final exam grade by any number of points or leave it unchanged, according to the formula: final = exam / 2 * (oral / 3 + 1).
In addition to the message sent by the online system, students with disabilities or Specific Learning Disorders (SLD) are invited to directly inform the professor in charge of the course about the special arrangements for the exam that have been agreed with the Special Needs Unit. The professor has to be informed at least one week before the beginning of the examination session in order to provide students with the most suitable arrangements for each specific type of exam.