Autumn Examinations 2010/11 - Analogue Electronics 1, Exams of Digital & Analog Electronics

Download Autumn Examinations 2010/11 - Analogue Electronics 1 and more Exams Digital & Analog Electronics in PDF only on Docsity! 1 ELTR 6002 CORK INSTITUTE OF TECHNOLOGY INSTITIÚID TEICNEOLAÍOCHTA CHORCAÍ Autumn Examinations 2010/11 Module Title: ANALOGUE ELECTRONICS 1 Module Code: ELTR6002 School: ELECTRICAL & ELECTRONIC ENGINEERING Programme Titles: Bachelor of Engineering in Electronic Engineering, Year 1 Bachelor of Engineering in Electronic Systems Engineering, Year 1 Programme Codes: EELXE_7_Y1 EELES_8_Y1 External Examiner(s): Dr. A. Donnellan Mr. I. Kennedy Internal Examiner: Mr M. O’Gorman Instructions: Answer 5 of the 7 Questions. All Questions Carry Equal Marks. Duration: 2 Hours Sitting: Autumn 2011 Requirements for this examination: N/A Note to Candidates: Please check the Programme Title and the Module Title to ensure that you are attempting the correct examination paper. If in doubt please contact an Invigilator. 2 ELTR 6002 Q.1 (a) Sketch forward and reverse characteristics for a typical silicon diode and explain their shape. [15 Marks] (b) Ignoring any forward voltage dropped across the diodes, calculate the value of ‘V’ in the circuit below. [5 Marks] Q.2 (a) Define the decibel. [8 Marks] (b) Express the following power ratios as gains or losses in decibels; [12 Marks] (i) 400, (ii) 100, (iii) 1 (iv) 0.5. Q.3 (a) Sketch the circuit diagrams of both a half-wave rectifier and a full-wave bridge rectifier. [12 Marks] (b) Briefly describe the operation of the half-wave rectifier. [8 Marks] Q.4 Show how capacitor smoothing may be introduced to a half-wave rectifier, and illustrate its effect with the help of waveform diagrams. [20 Marks]