March 9, 2010


Question Paper2009 Tamil Nadu State Anna University B.E Electronics and communication ELECTRONIC CIRCUITS-I Question paperANNA UNIVERSITY – CHENNAI

PART A-(2*10=20)
1. Define stability factor.
2. Draw the fixed bias single stage transistor circuit.
3. Define CMRR.
4. Draw the small signal equivalent circuit of FET.
5. Two amplifiers having gain 20db and 40db are cascaded. Find the overall gain in db.
6. Define bandwidth.
7. What is theoretical maximum conversion efficiency of class A power amplifier.
8. What is distortion in power amplifiers.
9. Draw the full wave bridge rectifier circuit.
10. What are the advantages of SMPS over conventional regulators.

PART B-(5*16=80)

11. A) (i) For the transistor circuit in fig. find the Q-point. Vcc=15v, B=100, VBE=0.7V
(ii) Calculate the stability factor for a fixed bias circuit.
B) Discuss the various techniques of stabilization of Q-point in a transistor.

12. A) For the CC transistor amplifier circuit, find the expressions for input impedance and voltage gain. Assume suitable model for transistor.


B) (i) Discuss the working of a basic emitter coupled differential amplifier circuit (8)
(ii) Compare CB, CE and CC amplifiers. (8)

13. A) (i) Discuss the frequency response of multistage amplifiers. Calculate the overall upper and lower cutoff frequencies. (10)
(ii) Discuss the terms rise time and sag. (6)


B) Discuss the high frequency equivalent circuit of FET and hence derive gain bandwidth product for any one configuration.

14. A) (i) Derive the theoretical max conversion efficiency of class B power amplifier. (10)
(ii) Write short notes on power MOSFET amplifier. (6)

B) Describe the distortion in power amplifier and the methods to eliminate the same.

15. A) Explain the circuit of voltage regulator and also discuss the short circuit protection mechanism.


B) (i) Explain the power control method using SCR.
(ii) Design zener regulator for following specification Vin=8v to 12v; Vo=10v, RL=10kO. Assume that zener diode is ideal.



Post a Comment

Get Syllabus in your Mail


Accenture Admission Notice - 2010 Admission Notification Anna University Anna University Chennai Anna University Question Papers Anna University Trichy Apparel Technology and Management Aptitude Questions Arts and Science Colleges Biomedical Engineering C and CPP Ebooks Calicut University CBSE Question papers Civil Engineering Civil Service Exams Colleges in India Colleges Result Computer Science Engineering Core Jobs CS R2008 CSE CSIR NET EBooks Download ECE EEE EIE Electives Electrical and Electronics Engineering Electronics and communication Electronics and Instrumentation Engineering Engineering Engineering Colleges in Maharashtra Engineering Colleges in TamilNadu Engineering Admissions Engineering Colleges Engineering Colleges in Karnataka Engineering Jobs Engineering Syllabus Entrance Exam Dates Entrance Exam Results Entrance Examination Exam Time Table Experiencer First Year Syllabus Freshers Full Time Jobs Government jobs in india Hardware and Networking Jobs Hotel Management and Catering Technology IGNOU Information Technology INTEVIEW QUESTIONS IT Jobs JNTU Question Papers Jobs in Bangalore Jobs in Chennai Jobs in Coimbatore Jobs in Delhi Jobs in Hyderabad Jobs in India Jobs in Kerala Jobs in Noida Jobs in Tamilnadu Jobs in TATA Karnataka Educations Lab Manuals Mechanical Engineering Medical Colleges Placement Papers Plus 2 Preparation for exams Private Jobs in India Question Papers Question Papers Download Results Announcement Semester 1 Semester 2 Semester 3 Semester 4 Semester 5 Semester 6 Semester 7 Semester 8 Syllabus Syllabus Download Tamil Movie TCS Placement Papers Teaching Jobs TECH MAHINDRA Textile Technology Top colleges University Results UPSC VICEVESVARAYA TECHNOLOGICAL UNIVERSITY waec Walk-in Interview Web Designers



Anna university Engineering Syllabus

Earn Money From Online

Government jobs in india

Admission Notification

Total Pageviews


Privacy Policy use third-party advertising companies to serve ads when you visit our website. These companies may use information (not including your name, address, email address, or telephone number) about your visits to this and other websites in order to provide advertisements about goods and services of interest to you. If you would like more information about this practice and to know your choices about not having this information used by these companies, click here.