Download Autumn Examinations 2011/12: Analogue Electronics 1 (ELTR 6002) and more Exams Digital & Analog Electronics in PDF only on Docsity!
CORK INSTITUTE OF TECHNOLOGY
INSTITIÚID TEICNEOLAÍOCHTA CHORCAÍ
Autumn Examinations 2011/
Module Title: ANALOGUE ELECTRONICS 1
Module Code: ELTR
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_Y EELES_8_Y
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 2012
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.
Q.1 (a) Sketch forward and reverse characteristics for a typical silicon diode and
explain their shape. [15 Marks] (b) Explain the term dynamic resistance when applied to a forward biased diode. [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) 200, (ii) 50, (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 (a) Briefly explain what is meant by a complex waveform. [6 Marks]
(b) Explain what is meant by the frequency spectrum of a complex waveform. [7 Marks] (c) Sketch the frequency spectrum of a square wave. [7 Marks]
Q.5 The following terms are sine wave parameters;
Explain what each terms means, using diagrams as necessary.
(a) peak voltage (VP), [4 Marks] (b) peak-to-peak voltage (VP/P), [4 Marks] (c) period, [4 Marks] (d) frequency, [4 Marks] (e) phase difference. [4 Marks]
