Electric Circuits

Code:

EEC0010

Acronym:

CIRC

Keywords
Classification	Keyword
OFICIAL	Basic Sciences for Electrotechnology

Instance: 2012/2013 - 2S

Active?	Yes
Web Page:	https://www.fe.up.pt/si/conteudos_geral.conteudos_ver?pct_pag_id=1639&pct_parametros=p_ano_lectivo=2006/2007-y-p_cad_codigo=EEC0010-y-p_periodo=2S
Responsible unit:	Department of Electrical and Computer Engineering
Course/CS Responsible:	Master in Electrical and Computers Engineering

Cycles of Study/Courses

Acronym	No. of Students	Study Plan	Curricular Years	Credits UCN	Credits ECTS	Contact hours	Total Time
MIEEC	415	Syllabus (Transition) since 2010/2011	1	-	7	77	189
		Syllabus	1	-	7	77	189

Teaching language

Portuguese

Objectives

The main objective of the course is to provide the students with basic training in the  analysis of linear electric circuits. Students must acquire the ability to apply the basic laws of the theory of electricity to DC and AC circuits, under transient and sinusoidal steady conditions.

Learning outcomes and competences

The students should acquire the skills needed to demonstrate that they are able to:

1. Describe and explain the concepts, characteristics and properties of the electrical fundamental variables (charge, voltage, current), and of passive and active devices in models of electric circuits (resistance, capacitance, inductance, and both independent and controlled voltage and current sources).

2. Identify and distinguish the basic laws applicable to electric circuits as well as the methods of circuit analysis and simplification that make use of these laws.

3. Write equations that describe the operation of DC and switched circuits (transient and steady state).

4. Describe and explain the concepts of phasor and impedance/admittance, and to apply them in the analysis of circuits in sinusoidal steady state.

5. Identifyr, characterize and operate with the notions of power in general, and complex power (apparent, active and reactive).

6.To assemble, test and measure electrical parameters in real laboratory situations, as well as to describing and analyze experimental results.

Working method

Presencial

Program

1. DC circuit analysis: general concepts. Variables and basic electrical laws. Methods for circuit analysis. Inductances and capacitors. RC and RL first order circuits.

2. AC circuit analysis: general concepts. Sinusoidal signals. The concept of phasor and phasor relationships for R, L and C circuit elements . Impedance and admittance. Sinusoidal steady-state response. Power calculation for sinusoidal steady-state operation.

3. Two-port networks.

Mandatory literature

Nilsson, James W.; Electric circuits. ISBN: 0-13-127760-X

Teaching methods and learning activities

Students are divided into two groups, designated A and B, subject to different teaching methods and learning activities.

Students in group A attend the course for the first time (students number beginning with 2012). These students are mandatorily enrolled in the sections 1 to 12.

All other students belong to group B; they must enroll in sections 13 to 18, if they do not wish to maintain the "frequency" status that they have obtained in 2011/12. Students who have obtained this status in a previous academic year, and who wish to maintain the grade of distributed assessment that was awarded to them, do not enroll in theoretical-practical sections, nor do they realize distributed assessment tests - instead they take a final exam graded for 14 points.

The teaching activities take place in three distinct types of classes: theoretical (T), theoretical-practical (TP), and laboratory (L). T classes involve lecturing the subject matter, whenever possible accompanied by the solution of illustrative examples. TP classes are dedicated to solving selected problems and last 1 or 2 hours per week (Group A adn B, respectively).  L classes (Group A only) are 2 hours long, take place every other week and are held in room I008 DEEC.  Their aim is to get students acquainted with the most common components and lab instruments, as well as with the practical verification of the functioning of representative circuits.

keywords

Technological sciences > Engineering > Electrical engineering

Evaluation Type

Distributed evaluation with final exam

Assessment Components

Description	Type	Time (hours)	Weight (%)	End date
Midterm 1	Teste		15,00
Midterm 2	Teste		15,00
Lab work	Trabalho laboratorial		10,00
Final exam	Exame		60,00
	Total:	-	100,00

Amount of time allocated to each course unit

Description	Type	Time (hours)	End date
Classes	Frequência das aulas	70
Self study	Estudo autónomo	75
Self study	Estudo autónomo	45
	Total:	190,00

Eligibility for exams

In order to obtain the "frequency" stauts the student cannot miss more that 25 % of the expected total number of TP and L classes (3 and 2, respectively).

Calculation formula of final grade

The final grade (CF) is obtained by combining the final exam grade (AE) and the grade of the distributed assessment (AD).  This takes in consideration the grades on 2 multiple-choice mini-tests (MT1 and MT2) and, for group A students only, the grade obtained in the activities in the L classes, regarding lab reports and general performance.

For students in group A: CF = AE*60% + MT1*15% +MT2*15% + LAB*10%
For students in group B: CF = AE*70% + MT1*15% +MT2*15%

For students in Group A the laboratory component is also assessed in the final exam.

Final grades greater than or equal to 19/20 are conditioned by a further oral examination.

Special assessment (TE, DA, ...)

Students legally exempt from obtaining the "frequency" status will be evaluated through an exam covering the whole course material. In the case of Group A students this exam will be graded for 18 points, and the 2 additional points are obtained by conducting a laboratory assignment.

Classification improvement

Improvement of the final grade may be obtained through an examination covering the whole course material.  The distributed assesment grade will not be considered for the calculation of this new grade.