Electronics 1

Code:

L.EEC019

Acronym:

ELE1

Keywords
Classification	Keyword
OFICIAL	Systems Electronics and Digital Systems

Instance: 2023/2024 - 2S

Active?	Yes
Responsible unit:	Department of Electrical and Computer Engineering
Course/CS Responsible:	Bachelor in Electrical and Computer Engineering

Cycles of Study/Courses

Acronym	No. of Students	Study Plan	Curricular Years	Credits UCN	Credits ECTS	Contact hours	Total Time
L.EEC	301	Syllabus	2	-	6	52	162

Teaching language

Portuguese

Objectives

The main objective of this curricular unit is to endow students with the knowledge of basilar fundaments on which the analysis and design of electronic circuits are built. In this perspective, it is given particular relevance to the application of fundamental laws and principles of circuit theory in the particular context of electronics. The concepts of linear amplifier and its behavioural modelling are strengthened in the context of the Operational Amplifier. The nonlinear (p-n junction) and active (BJT and MOSFET) semiconductor devices are introduced. These are used to present the concepts of basic AC/DC conversion, biasing and signal analysis after linear approximation around the quiescent (DC) operating point. All basic amplification configuration s with transistors are analysed in detail.

Learning outcomes and competences

The students should acquire technical skills in the domain of basic electronics, strengthen their self and professional aptitudes, being capable of conducting experiments and work in a team.

Working method

Presencial

Pre-requirements (prior knowledge) and co-requirements (common knowledge)

Solid knowledge in circuit analysis (Circuitos 1 e Circuitos 2)

Program

1- Amplification concept and modelling of linear amplifiers: current and voltage gains, input (Ri) and output (Ro) equivalent resistances.
2- Introduction of circuit analysis techniques that are particularly relevant for electronic circuits.
3- Non-ideal amplifier performance in the context of the OpAmp and improvements to mitigate them (e. g. Inst. Amp.).
4- Semiconductor devices: diodes and their characteristics.
5- Basic energy conversion circuits: rectification, filtering and regulation.
6- Active semiconductor devices: BJT and MOSFET transistors and their characteristics.
7- Biasing and small signal operation of active devices; linear approximation and equivalent models. 8- Characterization of basic BJT and MOSFET amplifying circuits (gain, Ri and Ro).
9- Linear operation limits.
10- Application of DC blocking and signal coupling capacitors.
11- Amplifiers with two gain stages.

Mandatory literature

Pedro Guedes de Oliveira; Eletrónica, uma visão de projeto. ISBN: 978-989-746-164-4 (Book written in Portuguese.)

Complementary Bibliography

Adel S. Sedra; Microelectronic circuits. ISBN: 978-0-19-973851-9

Teaching methods and learning activities

- Lectures (T) for delivery of content and discussion, where the matters are treated with the presentation of illustrative practical examples, in a logic of active learning, interleaved with classes for training and discussion of circuit analysis techniques, synthesis and problem solving.

- Laboratory Practice (LP) classes where the learned concepts are applied in the realization of a set of experimental works.

Software

LTspice

Evaluation Type

Distributed evaluation with final exam

Assessment Components

Designation	Weight (%)
Exame	50,00
Teste	20,00
Trabalho laboratorial	30,00
Total:	100,00

Amount of time allocated to each course unit

Designation	Time (hours)
Estudo autónomo	70,00
Frequência das aulas	52,00
Trabalho laboratorial	40,00
Total:	162,00

Eligibility for exams

- Attendance of lab classes is mandatory. The number of permitted absences from lab class is very limited and follows University rules.

- If a student skips an assignment, even if adequately justified, the student still have to perform that assignment during another lab class or during extra-curricular time. However, students have to be authorized by the professor and supervised by the laboratory responsible

- Students can only attend the exam if a minimum grade of 9 out of 20 is acheived in the laboratory-class component.

Calculation formula of final grade

1. A midterm will be given during the semester on a date to be announced.

2. Students will be assessed on their performance and participation in laboratory classes by their effort and engagement (30%) as well as by answering to a quiz at the end of each assignment (70%).

3. For ordinary students in first enrollment:

The final classification (FC) follows the following formula:

FC = 0,2×MT + 0,5×E + 0,3×LP

4. For ordinary students in first registration who have missed the midterm with a justification accepted, the percentage of the midterm is added to the final exam.

5. For students on a special regime or ordinary students who have already obtained approval in the laboratory component of the curricular unit and have not expressly requested access to the midterms, the following formula applies:

FC = 0,7×E + 0,3×LP

In any of the cases indicated above, the grade of the laboratory component (on a scale of 0 to 20) is limited to the classification of the final exam plus 4 values:

LP = min {LP, E + 4}

6. The weight of the mark correspondent to the distributed component evaluation is kept for both the regular and second period exams.

(NOTE: MT = Midterm, E = Exam, LP = Laboratory Practice.)

Examinations or Special Assignments

1. Special period exams (degree completion or others) follow the rule number 5 applicable to regular period exams.

Internship work/project

Does not apply.

Special assessment (TE, DA, ...)

1. Lab component is mandatory for all students.

2. Special regime students are exempt from performing the midterm. However, they can request to perform them.

Classification improvement

1. In case of registering to a final exam for grade improvement, if made in the same school year, the rules are the same as for  the period of final exams.

2. In case of grade improvement in a subsequent school year, the exam will weight 70% and the lab grade, already taken, weights 30%.

In all cases, the lab-component grade (in a 0 to 20 scale) is limited to the final exam grade plus 4 points (out of 20) — LP = min {LP, E + 4}.