Ingegneria Elettronica | ELECTROTECHNICS I
Ingegneria Elettronica ELECTROTECHNICS I
cod. 0612400034
ELECTROTECHNICS I
0612400034 | |
DIPARTIMENTO DI INGEGNERIA INDUSTRIALE | |
EQF6 | |
ELECTRONIC ENGINEERING | |
2016/2017 |
OBBLIGATORIO | |
YEAR OF COURSE 1 | |
YEAR OF DIDACTIC SYSTEM 2016 | |
SECONDO SEMESTRE |
SSD | CFU | HOURS | ACTIVITY | |
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ING-IND/31 | 6 | 60 | LESSONS |
Objectives | |
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THE COURSE PROVIDES THE BASIC METHODOLOGICAL TOOLS TO ANALYZE ELECTRICAL AND ELECTRONIC CIRCUITS. IN PARTICULAR, LINEAR TIME-INVARIANT CIRCUITS ARE STUDIED IN STATIONARY CONDITIONS (DIRECT AND ALTERNATING SINUSOIDAL CURRENT). KNOWLEDGE AND UNDERSTANDING. AT THE END OF THE COURSE THE STUDENT WILL KNOW: - METHODS FOR THE ANALYSIS OF LINEAR TIME-INVARIANT (LTI) CIRCUITS CONTAINING ONE AND TWO-PORTS - CONSEQUENCES OF CIRCUIT LINEARITY: SUPERPOSITION, EQUIVALENT GENERATORS OF VOLTAGE AND CURRENT - POWER AND ENERGY ADSORBED AND GENERATED; CONSERVATION PRINCIPLE OF VIRTUAL AND REAL POWER - ANALYSIS AN SYNTHESIS OF LINEAR TWO-PORTS WITH CONTROLLED GENERATORS - PHASOR METHOD FOR THE ANALYSIS OF CIRCUITS CONTAINING DYNAMIC COMPONENTS (INDUCTOR, CAPACITOR) WITH AC SOURCES. APPLYING KNOWLEDGE AND UNDERSTANDING. AT THE END OF THIS COURSE, STUDENTS WILL BE ABLE TO: • SOLVE FOR CURRENT, VOLTAGE, STORED ENERGY, AND POWER IN LINEAR TIME INVARIANT DC CIRCUITS USING THE FOLLOWING TECHNIQUES: KIRCHHOFF’S CURRENT AND VOLTAGE LAWS, SUPERPOSITION, NODE VOLTAGE ANALYSIS, MESH CURRENT ANALYSIS AND SOURCE TRANSFORMATIONS; • DETERMINE THEVENIN AND NORTON EQUIVALENT SOURCES; • ANALYZE AND DESIGN LINEAR TWO PORTS, INCLUDING CONTROLLED SOURCES VOLTAGE; • CALCULATE VOLTAGE, CURRENT, POWER AND ENERGY STORED IN LINEAR TIME INVARIANT AC CIRCUITS BY EMPLOYING PHASORS. MAKING JUDGEMENTS. ABILITY TO IDENTIFY THE MOST APPROPRIATE METHODS TO ANALYZE LINEAR TIME INVARIANT CIRCUITS. COMMUNICATION SKILLS. ABILITY TO DESCRIBE IN WRITTEN FORM AND PRESENT IN A CLEAR AND CONCISE WAY THE PROCESS AND RESULTS OF PERFORMED CALCULATIONS. LEARNING SKILLS. BEING ABLE TO APPLY THEIR KNOWLEDGE IN CONTEXTS DIFFERENT FROM THOSE PRESENTED DURING THE COURSE, AND DEEPEN THE TOPICS USING MATERIALS OTHER THAN THOSE PROPOSED. |
Prerequisites | |
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PREREQUISITES ARE: - KNOWLEDGE ABOUT THE SOLUTION OF SYSTEMS OF OF ALGEBRAIC LINEAR EQUATIONS AND DIFFERENTIAL EQUATION OF THE FIRST ORDER - OPERATION ON COMPLEX NUMBERS |
Contents | |
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FUNDAMENTAL CONCEPTS (LECTURES: 5H; EXERCISE 0H) STRUCTURE OF MATTER AND ELECTRICAL CHARGE. CONSERVATION LAW. CLASSIFICATION OF MATERIALS FOR ELECTRICAL APPLICATIONS. OPERATIONAL DEFINITION OF VOLTAGE AND CURRENT. IDEAL VOLTMETER AND AMMETER. COMPONENTS: ONE PORT, MULTI PORT. KIRCHHOFF'S LAWS. CONVENTIONS. ELEMENTS OF GRAPH THEORY CLASSIFICATION AND CHARACTERISTICS OF FUNDAMENTAL COMPONENTS (LECTURES: 8H; EXERCISE 2H) STATIC AND DYNAMIC, LINEARITY, TIME INVARIANCE. EQUIVALENCE: SERIES AND PARALLEL. CURRENT AND VOLTAGE DIVIDERS. POWER ABSORBED AND GENERATED BY AN ELEMENT. ENERGY. TELLEGEN'S THEOREM. CIRCUITS AND METHODS OF ANALYSIS (LECTURES: 10H; EXERCISE 10H) FUNDAMENTAL EQUATION SYSTEM OF A CIRCUIT. LINEAR SYSTEMS. SOLUTION METHODS: SUPERPOSITION, REPLACEMENT. METHODS OF NODE POTENTIAL AND MESH CURRENTS. (10H).CONSEQUENCES OF LINEARITY: THEVENIN AND NORTON EQUIVALENT GENERATORS. LINEAR TWO-PORTS. (LECTURES: 5H; EXERCISE 5H) CHARACTERIZATION WITH MATRIX OF CONDUCTANCES, RESISTANCES, HYBRID AND TRANSMISSION PARAMETERS. TWO-PORT CONNECTIONS. POWER. VOLTAGE- AND CURRENT-CONTROLLED LINEAR SOURCES. CIRCUITS IN SINUSOIDAL STEADY STATE (LECTURES: 10H; EXERCISE 5H) CIRCUITS CONTAINING DYNAMIC COMPONENTS: TRANSIENT RESPONSE AND STEADY-STATE. SINUSOIDAL (AC) GENERATORS. USE THE PHASOR METHOD. IMPEDANCE AND ADMITTANCE. CIRCUIT ANALYSIS IN SINUSOIDAL STEADY STATE. EQUIVALENT GENERATORS. POWER IN SINUSOIDAL STEADY STATE. REACTIVE LOADS. MAXIMUM POWER TRANSFER. POWER FACTOR CORRECTION. |
Teaching Methods | |
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THE COURSE INCLUDES CLASSROOM LECTURES AIMED AT PRESENTING THE THEORY AND NUMERICAL EXCERCISES TO STRENGTHEN THE OPERATIONAL SKILLS. THE EXERCISES ASSIGNED TO STUDENTS ARE SOLVED IN CLASS BY THE TEACHER USING THE TECHNIQUES PRESENTED IN THEORY LECTURES. THE EXCERCISE IS LED BY THE TEACHER TO DEVELOP THE PUPIL'S ABILITY TO IDENTIFY THE MOST APPROPRIATE SOLUTION TECHNIQUES AND PRESENT THE RESULTS IN A CLEAR AND EFFICIENT WAY. IN ORDER TO PARTICIPATE TO THE FINAL ASSESSMENT AND TO GAIN THE CREDITS CORRESPONDING TO THE COURSE, THE STUDENT MUST HAVE ATTENDED AT LEAST 70% OF THE HOURS OF ASSISTED TEACHING ACTIVITIES. |
Verification of learning | |
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FOR STUDENTS ATTENDING THE COURSE IN THE ACADEMIC YEAR 2016/2017 THAT WILL COMPLETE THE EXAMINATION PROCEDURE BEFORE OCTOBER 2017. THE FOLLOWING RULES WILL BE APPLIED. FOR STUDENTS WHO WILL NOT COMPLETE THE EXAMINATION BEFORE OCTOBER 2017 THE RULES VALID FOR PREVIOUS ACADEMIC YEARS WILL BE ADOPTED. THE VERIFICATION INCLUDES THREE WRITTEN TESTS (TWO INTERMEDIATE, ONE FINAL) AND AN ORAL EXAM. A STUDENT WHO, FOR A JUSTIFIED REASON, IS UNABLE TO ATTEND AN INTERMEDIATE WRITTEN TEST WILL RECOVER IT IN THE FINAL TEST. THE STUDENT EVALUATION IS OBTAINED BY ADDING THE RESULTS OBTAINED IN THE DIFFERENT TESTS. THE CONTENT OF THE WRITTEN TESTS AND THE CORRESPONDING POINTS CONFERRED TO THEM ARE: - FIRST TEST: ANALYSIS OF RESISTIVE CIRCUITS; EQUIVALENT GENERATORS - 4 POINTS - SECOND TEST: METHODS FOR THE ANALYSIS OF STATIC CIRCUITS (NODE POTENTIAL, MESH CURRENTS); POWER CALCULATION AND ENERGY – 8 POINTS - THIRD TEST: ANALYSIS AND SYNTHESIS OF THE TWO-PORTS; ANALYSIS OF CIRCUITS IN SINUSOIDAL STEADY - 12 POINTS TO ACCESS THE ORAL TEST THE STUDENT MUST ACHIEVE IN THE THREE WRITTEN TESTS A TOTAL SCORE OF AT LEAST 12 POINTS. - ORAL TEST: PRINCIPLES AND THEOREMS FOR LTI CIRCUITS. POWER, ENERGY AND THEIR CONSERVATION. PROPERTIES OF THE TWO-PORTS; TRANSIENTS IN THE FIRST ORDER CIRCUITS. PHASOR METHOD - 10 POINTS THE SUM OF POINTS WILL BE THE FINAL GRADE FOR THE EXAM (THEY ARE MORE THAN 30 TO RECOVER FROM NOT FULLY POSITIVE RESULTS IN SINGLE TEST. THE EVALUATION (WRITTEN OR ORAL) TAKES INTO ACCOUNT THE CORRECTNESS AND EFFICIENCY OF THE ADOPTED METHODS, THE COMPLETENESS AND ACCURACY OF THE ACHIEVED RESULTS, AS WELL AS THE CLARITY OF THE PRESENTATION. LAUDE IS AWARDER TO STUDENTS ACHIEVING AN OVERALL SCORE OF AT LEAST 30 AND SHOWING REMARKABLE ABILITY IN ANALYSIS AND CRITICAL EVALUATIONS. FOR THE LEARNING ASSESSMENT AND THE GRADUATION OF THE SCORES THE FOLLOWING CRITERIA WILL BE APPLIED. PVAL INDICATES THE MARKS OBTAINED IN THE TEST, PMAX THE MAXIMUM POINTS AWARDED, SUP (X) IS THE APPROXIMATION TO THE HIGHER INTEGER, INF (X), TO THE LOWER ONE. - FULLY POSITIVE RATING (PVAL> = SUP (0.9 * PMAX)): THE STUDENT EFFECTIVELY ADDRESSES THE SOLUTION OF THE PROBLEM, JUSTIFIES AND CONSISTENTLY DEVELOPS ITS OWN CHOICES AND CALCULATIONS IN A COMPLETE AND ACCURATE WAY ALWAYS REACHING THE EXACT RESULTS; THE PRESENTATION OF THE TOPIC IS VERY CLEAR AND PRECISE. - POSITIVE RATING (SUP (0.7 * PMAX) <= PVAL <= INF (0.9 * PMAX): THE STUDENT PROPERLY ADDRESSES THE SOLUTION OF THE PROBLEM, JUSTIFIES IN SOME DETAIL ITS OWN CHOICES AND DEVELOPS CALCULATIONS REACHING IN GENERAL CORRECT RESULTS; THE PRESENTATION OF THE TOPIC IS GENERALLY CLEAR. - SUFFICIENT RATING (SUP (0.5 * PMAX) <= PVAL <= INF (0.7 * PMAX): THE STUDENT ADDRESSES WITH SOME UNCERTAINTY THE METHOD TO FIND THE SOLUTION OF THE PROBLEM, DOES NOT ALWAYS JUSTIFY ITS OWN CHOICES AND DEVELOPS CALCULATIONS WITH SOME INACCURACY; THE PRESENTATION HIGHLIGHTS SOME UNCERTAINTY. - INSUFFICIENT RATING (PVAL <= INF (0.5 * PMAX): THE STUDENT ADDRESSES THE PROBLEMS WITH CONCEPTUAL ERRORS IN, DEVELOPS CALCULATIONS IN AN INCOMPLETE AND ERRONEOUS WAY; THE PRESENTATION HIGHLIGHTS MANY UNCERTAINTIES. SAMPLES OF THE WRITTEN TESTS ARE AVAILABLE ON THE WEB PAGE HTTP://WWW.ELETTROTECNICA.UNISA.IT/DIDATTICA/DID_ETPROVEDESAME |
Texts | |
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- C.K. ALEXANDER, M.N.O. SADIKU: FUNDAMENTALS OF ELECTRIC CIRCUITS, MCGRAW HILL - R.C. DORF, J. A. SVOBODA: INTRODUCTION TO ELECTRIC CIRCUITS ELETTRICI, WILEY - SLIDES AND SUPPORT MATERIALS (IN ITALIAN) AVAILABLE ON THE WEB SITE: HTTP://WWW.ELETTROTECNICA.UNISA.IT |
More Information | |
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- OFFICE HOURS FOR STUDENTS DURING FIRST SEMESTER (LAB. T16 GROUND FLOOR FACULTY OF ENGINEERING): TO BE DEFINED AFTER THE PUBLICATION OF THE COURSE WEEKLY SCHEDULE. |
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