Student Id: Student Name: Academic year: 2019-20 Sem-In Examinations-I, B.Tech. (ECE), 2017 Batch II/I, Summer Term Course Code: 17EC2101 Time: 1 hours Course Title: Analog Electronic Circuit Design Max. Marks: 25 CO1 Part-A (2X 3M=06M) Answer ALL Questions 1. 2. Mention the effect of temperature on PN junction Diode Explain the principle of Varactor Diode Part-B (2 X 5M=10M) Answer ALL Questions 5. Explain briefly the formation of depletion region in a PN junction diode? 6. Mention any three clipper circuits with neat sketches Part-C(1 X 9M=09M) Answer ALL Questions 9. (a) Write a brief note on parallel clippers with reference voltage with relevant sketches(4M) (b) A full-wave rectifier uses two diodes, the internal resistance of each diode may be assumed constant at 20 Ω. The transformer r.m.s. secondary voltage from centre tap to each end of secondary is 50 V and load resistance is 980 Ω. Find : (i) the mean load current (ii) the r.m.s. value of load current (5M) (Or) 10. (a) What do you mean by voltage regulation? Analyze the line & load regulations of a zener diode with a neat circuit and necessary equations (5M) (b) Write a brief note on LED (4M) Note: Test 1 exam is a combination of CO1 and CO2. Exam question paper will be CO wise, with each CO 25 Marks.