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Code: | EEC0014 | Acronym: | ELEC1 |

Keywords | |
---|---|

Classification | Keyword |

OFICIAL | Electronics and Digital Systems |

Active? | Yes |

Web Page: | http://moodle.fe.up.pt/ |

Responsible unit: | Department of Electrical and Computer Engineering |

Course/CS Responsible: | Master in Electrical and Computers Engineering |

Acronym | No. of Students | Study Plan | Curricular Years | Credits UCN | Credits ECTS | Contact hours | Total Time |
---|---|---|---|---|---|---|---|

MIEEC | 370 | Syllabus (Transition) since 2010/2011 | 2 | - | 6 | 63 | 162 |

Syllabus | 2 | - | 6 | 63 | 162 |

Teacher | Responsibility |
---|---|

Pedro Henrique Henriques Guedes de Oliveira |

Lectures: | 2,00 |

Laboratories: | 2,00 |

Type | Teacher | Classes | Hour |
---|---|---|---|

Lectures | Totals | 2 | 4,00 |

Pedro Henrique Henriques Guedes de Oliveira | 4,00 | ||

Laboratories | Totals | 12 | 24,00 |

Manuel Cândido Duarte dos Santos | 4,00 | ||

António José de Pina Martins | 8,00 | ||

Pedro Henrique Henriques Guedes de Oliveira | 6,00 | ||

João Paulo Filipe de Sousa | 6,00 |

- Application of laws and fundamental principles of the circuit theory (Kirchoff, overlapping, Thévenin, Norton, absorption) and the control of notions such as independent source, equivalent resistance and controlled source.

- Functioning of simple RC circuits, low pass and high pass circuits, calculation of time constants and sinusoidal and square wave responses.

- Linear amplifiers models and calculation of voltage and current gains, input and output resistance.

- Principles of p-n junction, junction diodes, bipolar transistors and field effect.

- Simple rectifier circuits

- Polarisation of electronic devices and functioning of small signals; linear approximation and equivalent models to small signals.

- Understanding the separation between AC and DC circuits. Decomposition of circuits in models for polarisation and signal.

- Configuration of common source, common drain and common gate

- Amplifier circuits with more than one transistor

- Feedback (only for automation and energy)

This course also aims to develop students’ personal and professional attitudes concerning engineering reasoning and problem solving (CDIO Syllabus 2.1- from 2.1.1 to 2.1.4) and be capable of experimenting (CDIO 2.2) and developing system thinking.

1. Introduction to Electronics

1.1 Signals and signal frequency spectrum

1.2 Analogue and digital signals

1.3 Amplifiers

Signal amplification and symbols

Voltage, current and power gain

dB gain

Power suppliers and amplifier saturation

Non-linear characteristics and polarisation

1.4 Amplifiers circuits

Current amplifiers and cascaded amplifiers

Types of amplifiers and relation between models

1.5 Amplifiers response

Frequency and bandwidth response measurement

Calculation of amplifier frequency response

Constant circuits

2. Operational amplifiers

2.1 Ideal op-amp

Model, functioning and ideal characteristics

Signal in common and differential mode

2.2 Inverse configuration

Closed-loop gain and effect of finite gain

Input and output resistances

Applications

2.3 Non-inverse configuration

Closed-loop gain and effect of finite gain

Input and output resistances

Voltage follower

2.4 Effect of finite gain and bandwidth in the behaviour of open and closed loop

2.5 Operations with large signals

Limits of tension and voltage

Maximum bandwidth

2.6 DC imperfections: offset tension and voltage and polarisation currents

Chapter II- DIODES AND DIODE CIRCUITS

3. Diodes

3.1 Ideal diode

Voltage current

Rectifier and logic gate

3.2 Diode: valve and junction

3.3 Terminal characteristics of diodes and junctions

Direct and inverse polarisation; Breakdown

3.4 Diode conduction

Exponential model and graphic analysis

Linear parts model and constant voltage model

Ideal model and signal functioning

3.5 Operations with inverse polarisation

Breakdown operation: Zener diode

Zener diode model and temperature effects

3.6 Rectifier circuits

Half-wave and full wave rectifier; bridge rectifier

Filtered rectification

3.6 Limiting circuit and “clamping”

Voltage doubler

4. Diode physic operation

4.1 Basic concepts of semiconductors

4.2 Pn junction

Open circuit junction and junction under inverse polarisation

Breakdown

Junction under direct polarisation

4.3 Special diodes

Schottky, varactors, photodiodes and LEDs

Chapter III- STRUCTURE PHYSICAL OPERATION OF TRANSISTORS

5. Field effect transistors (FETs and MOSFETs)

5.1 J-FET: structure and operation

5.2 MOSFET: structure and operation

Creation of the channel and conduction

Drain-gate voltage application

Derivation of ID/VDS relationship

MOSFET channel n and p; Complementary MOS (CMOS)

“Subthreshold“

5.3 Voltage tension characteristics

ID/VDS symbols and characteristics

Body effect

Temperature effects and breakdown protection

5.4 CC operation

5.5 MOSFET as an amplifier

Great signals operation and graphic analysis

Operation as commuter and an amplifier

Analytical expression of transference characteristics

5.6 MOS circuits polarisation

VGS and RS

Constant source current

5.7 Operation with small signals

Polarisation point and signal drain current

Separation between DC functioning and signal

Equivalent model for signals

Gm and T model; body effect

5.8 Depletion MOSFET

6. Bipolar transistors

6.1 Structure and operation

Ways of operation

BJT npn in active mode

Real structure and Ebers-Moll model: saturation

BJT pnp

6.2 Current voltage characteristics

Symbols, characteristics and graphical representation

Early effect

Common emitter: characteristics

Breakdown

6.3 BJT as an amplifier

Operations with great signals

In laboratory classes 4 assignment will be carried out. They will be based on basic components and their application on circuits, their assembly and testing. Students will have access to the guidelines (available on the course page). Each assignment will comprise 4 components:

1. An expositive part related to the theme of the assignment;

2. An introduction to the laboratory work;

3. A part in which students will have to work alone. They will have to finish their tasks and answer to questions.

4. Assessment of the assignment and learning outcomes.

Since this course is designed for Telecommunication, Automation and Energy students, theoretical classes will be different at the end of the semester. That means that they will be focused on the teaching of feedback.

Theoretical exams will be different because of this variation of the program.

However, laboratory classes will be similar for all areas, as well as its assessment.

- If students miss an assignment and even if they adequately justify their absence, they will have to perform that assignment during another class or outside of class. However, students have to be authorized by the professor and be supervised by the laboratory responsible.

- Students can only attend the exam, if they achieve a minimum grade of 8 out of 20 in the laboratory classes’ component.

Laboratory component- 30%; each mini-test: 10%; final exam- 50%

Ordinary students who are attending this course for the first time, and who missed (adequately justified absence) a mini-test, the percentage of the mini-test will be added to the final exam.

Students with a special status or who attended this course in previous years, and did not ask to attend to the mini-test will be assessed in the following way:

Laboratory component (already obtained) - 30%; final exam- 70%

The mark of the laboratory component (from 0 to 20) is limited to the mark of the final exam plus 4 values.

Students will be assessed on their performance and participation in the laboratory classes, by answering oral questions at the end of each assignment. Laboratories will be available two more hours per week (besides class time), so that students can finish their assignments.

Laboratory classes’ component is worth 30% of the final mark.

Even though they can attend to the mini-tests, they do not need to do it.

They will be assessed in the following way:

Laboratory component- 30%; each mini-test- 10%; final exam- from 50% to 70%, depending on whether students had attend to the mini-tests or not.

- Students who want to improve their mark in the year they attended to classes, the rules will be the same as for the recurso exam. If students want to improve their mark in following years, laboratory component is worth 30% and the exam 70%.

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Page generated on: 2019-02-23 at 01:19:29

Page generated on: 2019-02-23 at 01:19:29