GUJARAT TECHNOLOGICAL UNIVERSITY (GTU)
Competency-focused Outcome-based Green Curriculum-2021 (COGC-2021) Semester-II
Course Title: Electronics Devices & Circuits
(Course Code: 1323202)
| Diploma Programme in Which This Course is Offered | Semester in Which Offered |
|---|---|
| Information and Communication Technology | Second |
1. RATIONALE
Electrical, Electronic and communication, Information and communication technology and allied engineering diploma holders are required to use and maintain various types of electronically controlled equipment. The fundamental principles of electronics are to be applied in most of the situations to arrive at the probable solutions which is faced in the world of work, therefore the knowledge of the functions of various basic electronic devices and components and practical skills acquired through the laboratory experiments will help them, when they work with electronic equipment and its sub-circuits. This course is designed to develop the skills to use the basics electronic devices and apply the knowledge to maintain the various types of electronic circuits.
2. COMPETENCY
The purpose of this course is to help the student to attain the following industry identified competency through various teaching learning experiences:
To maintain various electronic circuits and its applications.
3. COURSE OUTCOMES (COs)
The practical exercises, the underpinning knowledge and the relevant soft skills associated with the identified competency are to be developed in the student for the achievement of the following COs:
- a) Use electronic devices for various applications
- b) Test different amplifiers and oscillators
- c) Use different Thyristors for various applications
- d) Use integrated circuits for various applications
- e) Build Regulated Power Supply for Green Technology
4. TEACHING AND EXAMINATION SCHEME
GTU - COGC-2021 Curriculum
| Teaching Scheme (In Hours) | Total Credits | Theory Marks | Practical Marks | Total | ||||
|---|---|---|---|---|---|---|---|---|
| L | T | P | (L+T+P/2) | CA | ESE | CA | ESE | Marks |
| 2 | 0 | 2 | 3 | 30 | 70 | 25* | 25 | 150 |
- (*): For this practical only course, 25 marks under the practical CA have two components i.e. the assessment of micro-project, which will be done out of 10 marks and the remaining 15 marks are for the assessment of practical. This is designed to facilitate attainment of COs holistically, as there is no theory ESE.
Legends: L - Lecture; T - Tutorial/Teacher Guided Theory Practice; P - Practical; C - Credit; CA - Continuous Assessment; ESE - End Semester Examination.
5. SUGGESTED PRACTICAL EXERCISES
Following practical outcomes (PrOs) are the sub-components of the Course Outcomes (Cos). Some of the PrOs marked '*' are compulsory, as they are crucial for that particular CO at the 'Precision Level' of Dave's Taxonomy related to 'Psychomotor Domain'.
| Sr. No. | Practical Outcomes (PrOs) | Unit No. | Approx. Hrs. Required |
|---|---|---|---|
| 1 | Build and test voltage divider bias type amplifier | I | 02* |
| 2 | To build relay driver using transistor as a switch | I | 02 |
| 3 | Obtain frequency response of single stage transistor amplifier | II | 02 |
| 4 | Obtain frequency response of two stage RC-coupled amplifier | II | 02* |
| 5 | Test the effect of voltage series negative feedback on amplifier | II | 02* |
| 6 | Build and test Hartley oscillator | II | 02* |
| 7 | Build and test Colpitt oscillator | II | 02 |
| 8 | Build and test Crystal oscillator | II | 02 |
| 9 | Obtain the characteristics of SCR | III | 02* |
| 10 | Obtain the characteristics of DIAC | III | 02 |
| 11 | Obtain the characteristics of TRIAC | III | 02* |
| 12 | Control AC power using TRIAC | III | 02 |
| 13 | Control DC power using SCR | III | 02* |
| 14 | Use MOC 3041/3083 Optocoupler and TRIAC for AC power control | III | 02 |
| 15 | Build and test inverting amplifier using Op-Amp IC-741 | IV | 02* |
| 16 | Build and test non-inverting amplifier using Op-Amp IC-741 | IV | 02 |
| 17 | Build and test summing amplifier using Op-Amp IC-741 | IV | 02* |
| 18 | Build and test integrator using IC-741 Op-Amp | IV | 02 |
| 19 | Build and test differentiator using Op-Amp IC-741 | IV | 02* |
| 20 | Build and test comparator using Op-Amp IC-741 | IV | 02 |
| 21 | Build and test monostable multivibrator using IC 555 | IV | 02 |
| 22 | Build and test bistable multivibrator using IC 555 | IV | 02 |
| 23 | Build and test astable multivibrator using IC 555 | IV | 02* |
| 24 | Measure voltage at various test points of SMPS and obtain its load and line regulation | V | 02 |
| 25 | Build fixed voltage regulator using 78xx and 79xx and measure the load and line regulation | V | 02 |
| 26 | Build variable voltage regulator using LM317 and measure the dropout voltage for the given voltage regulator | V | 02* |
| 27 | Build and test one mini project using basic electronic components and general purpose PCB | I, II, III, IV, V | 02* |
| Total | Minimum 13 Practical Exercises | 28 |
Note
-
i. More Practical Exercises can be designed and offered by the respective course teacher to develop the industry relevant skills/outcomes to match the COs. The above table is only a suggestive list.
-
ii. Care must be taken in assigning and assessing study report as it is a first year study report. Study report, data collection and analysis report must be assigned in a group. Teacher has to discuss about type of data (which and why) before group start their market survey.
The following are some sample 'Process' and 'Product' related skills (more may be added/deleted depending on the course) that occur in the above listed Practical Exercises of this course required which are embedded in the COs and ultimately the competency.
| Sr. No. | Sample Performance Indicators for the PrOs | Weightage in % |
|---|---|---|
| 1 | Prepare of experimental setup | 20 |
| 2 | Operate the equipment setup or circuit | 20 |
| 3 | Follow safe practices measures | 10 |
| 4 | Record observations correctly | 20 |
| 5 | Interpret the result and conclude | 30 |
| Total | Total | 100 |
6. MAJOR EQUIPMENTS/ INSTRUMENTS REQUIRED
These major equipments with broad specifications for the PrOs is a guide to procure them by the administrators to user in uniformity of practical's in all institutions across the state.
| Sr. No. | Equipment Name with Broad Specifications | PrO. No. |
|---|---|---|
| 1 | Dual variable DC power supply, 0- 30V, 2A, With Short circuit protection, separate display for voltage and current. | 1 to 15 |
| 2 | Cathode Ray Oscilloscope, Dual Trace 20 MHz, 1MΩ Input Impedance. | 1, 3, 4, 7, 8, 9 |
| 3 | Function Generator 0-2 MHz with Sine, square and triangular output with variable frequency and amplitude. | 3,4,7, 8,9 |
| 4 | Digital Multimeter: 3 1/2 digit display, 1999 count digital multimeter measures: Vac, Vdc ( 600V max) , Adc, Aac (10 amp max) , Resistance ( 0 - 2 MΩ) , with diode and transistor tester | 1, 2, 5, 6, 12, 13, 14, 15 |
| 5 | Electronic Workbench: Bread Board 840 -1000 contact points: Positive and Negative DC power rails on opposite sides of the board with , 0-30 V , 2 Amp Variable DC power supply, Function Generator 0- 2MHz, CRO 0-30MHz , Digital Multimeter | 1, 7, 8, 10, 11, 12, 13,15 |
7. AFFECTIVE DOMAIN OUTCOMES
The following sample Affective Domain Outcomes (ADOs) are embedded in many of the above-mentioned COs and PrOs. More could be added to fulfill the development of this course competency.
- a) Work as a leader/a team member.
- b) Follow ethical practices.
- c) Practice environment friendly methods and processes.
- d) Follow safety precautions.
The ADOs are best developed through the laboratory/field based exercises. Moreover, the level of achievement of the ADOs according to Krathwohl's 'Affective Domain Taxonomy' should gradually increase as planned below:
- i. 'Valuing Level' in 1st year
- ii. 'Organization Level' in 2nd year
- iii. 'Characterization Level' in 3rd year
8. UNDERPINNING THEORY
The major underpinning theory is given below based on the higher level UOs of Revised Bloom's taxonomy that are formulated for development of the COs and competency. If required, more such UOs could be included by the course teacher to focus on attainment of COs and competency.
| Unit | Unit Outcomes (UOs) (4 to 6 UOs at different levels) | Topics and Sub-topics |
|---|---|---|
| Unit-I: Transistor Biasing Circuits | 1a. Explain biasing of amplifier and operating point 1b. Describe the D.C. and A.C. Load Lines 1c. Compare Biasing Methods 1d. Explain Stability Factor with features 1e. Describe Thermal Runaway and Thermal Stability 1f. Select appropriate Heat Sink | 1.1 Biasing of Amplifier and Definition of Operating Point 1.2 The Load Lines: D.C. Load Line and A.C. Load Line 1.3 Stability Factor: Definition and features 1.4 Biasing Methods - fixed bias, collector to base bias and voltage divider bias (without analysis) 1.5 Thermal Runaway, Thermal Resistance & Thermal Stability 1.6 Heat Sink, types and applications of heat sinks |
| Unit-II: Transistor Applications | 2a. Define Amplifier Parameters 2b. Explain Single Stage Amplifier 2c. RC Coupling Techniques for cascading 2d. Explain Frequency Response Two Stage RC Coupled Amplifier 2e. Compare negative and positive feedback in amplifier 2f. Describe types of negative feedback 2g. Explain advantages and disadvantages of negative feedback in amplifiers in detail 2h. Explain working of different type of oscillators 2i. Explain working of transistor as switch | 2.1 Gain, Bandwidth and Gain Bandwidth product 2.2 Frequency Response of Single Stage Amplifier 2.3 RC Coupling Techniques for cascading 2.4 Frequency Response of Two Stage RC Coupled amplifier 2.5 Negative feedback and positive feedback (only types, and block diagram without analysis) 2.6 Voltage series negative feedback 2.7 List advantages and disadvantages of negative feedback on the parameter of amplifiers 2.8 The Barkhausen's criterion for oscillator 2.9 Hartley oscillators, Colpitt oscillator, Crystal oscillator 2.10 Working of transistor as switch and relay driver |
| Unit-III: Thyristors | 3a. Describe constructional features and working of SCR, DIAC and TRIAC 3b. Draw the characteristics of SCR, DIAC, TRIAC 3c. Applications of SCR, DIAC and TRIAC for AC/DC power control | 3.1 SCR: symbol, construction, working, characteristics 3.2 Working of SCR using two transistor analogy 3.3 Gate Triggering method of SCR 3.4 Natural Commutation techniques of SCR 3.5 Characteristics of DIAC and TRIAC 3.6 Optocoupler TRIAC driver: MOC 3041 and MOC 3083 3.7 TRIAC applications as fan regulator and ON-OFF control of AC power 3.8 SCR application for DC power control |
| Unit-IV: Integrated Circuits | 4a. Explain construction and working of operational amplifier 4b. Describe IC 741 as Op-Amp 4c. Explain parameter of op-Amp 4d. Explain application of op-Amp with circuit and waveforms 4e. Explain working and application of timer IC555 | 4.1 Brief introduction to integrated circuits 4.2 Block diagram of typical operational amplifier 4.3 Op-Amp: Open loop, Close loop 4.4 Op-Amp parameters: Input Offset voltages, input offset current, input bias current, CMRR, slew rate, frequency response 4.5 Op-amp applications such as Voltage follower, Inverting amplifier, non-inverting amplifier, summing amplifier, integrator, differentiator, comparator, D-A converter, Wein bridge oscillator 4.6 IC 555: block diagram, working, Pin diagram 4.7 Application of IC 555: Mono stable Multivibrator, Bistable Multivibrator, Astable Multivibrator |
| Unit-V: Regulated Power Supply | 5a. Explain working of Regulated Power Supply 5b. Explain working of different types of Fixed and variable voltage regulator IC 5c. Describe SMPS applications 5d. Explain working of solar battery charger circuits | 5.1 Regulated power supply 5.2 Three Terminal Fixed and Adjustable voltage regulator IC: 78xx, 79xx, LM317 5.3 Switch mode power supply(SMPS) 5.4 Solar based battery charger circuits |
9. SUGGESTED SPECIFICATION TABLE FOR QUESTIONPAPER DESIGN
| Unit No. | Unit Title | Teaching Hours | R Level | U Level | A Level | Total Marks |
|---|---|---|---|---|---|---|
| I | Transistor biasing circuits | 05 | 4 | 4 | 4 | 12 |
| II | Transistor applications. | 06 | 4 | 4 | 8 | 16 |
| III | Thyristors | 05 | 4 | 4 | 6 | 14 |
| IV | Integrated circuits | 09 | 4 | 8 | 8 | 20 |
| V | Regulated Power Supply. | 03 | 2 | 2 | 4 | 08 |
| Total | Total | 28 | 18 | 22 | 30 | 70 |
Legends: R=Remember, U=Understand, A=Apply and above (Revised Bloom's taxonomy)
10. SUGGESTED STUDENT ACTIVITIES
Other than the classroom and laboratory learning, following are the suggested studentrelated co-curricular activities which can be undertaken to accelerate the attainment of the various outcomes in this course: Students should perform following activities in group and prepare reports of about 5 pages for each activity. They should also collect/record physical evidences for their (student's) portfolio which may be useful for their placement interviews:
- i. Prepare a table and interpret the technical specification of various transistors and thyristors using data sheets
- ii. Compare specifications of various voltage regulator ICs
- iii. Prepare a survey report of different heat sinks used in electronic devices/instruments and list out the alternatives used for heat sinks
- iv. Undertake a market survey of different types of Amplifiers and oscillators modules
- v. Prepare labeled charts of SMPS
11. SUGGESTED SPECIAL INSTRUCTIONAL STRATEGIES (if any)
These are sample strategies, which the teacher can use to accelerate the attainment of the various outcomes in this course:
- a) Massive open online courses (MOOCs) may be used to teach various topics/sub topics
- b) Guide student(s) in undertaking micro-projects
- c) 'L' in section No. 4 means different types of teaching methods that are to be employed by teachers to develop the outcomes
- d) About 20% of the topics/sub-topics which are relatively simpler or descriptive in nature is to be given to the students for self-learning, but to be assessed using different assessment methods
- e) With respect to section No. 10, teachers need to ensure to create opportunities and provisions for co-curricular activities
- f) Guide students to find different ICs used in real time application based on diodes, transistors and thyristors
12. SUGGESTED MICRO-PROJECTS
Only one micro-project is planned to be undertaken by a student that needs to be assigned to him/her in the beginning of the semester. In the first four semesters, the micro-projects are group-based (group of 3 to 5). However, in the fifth and sixth semesters , the number of students in the group should not exceed three.
The micro-project could be industry application based, internet-based, workshop-based, laboratory-based or field-based. Each micro-project should encompass two or more COs which are in fact, an integration of PrOs, UOs and ADOs. Each student will have to maintain dated work diary consisting of individual contribution in the project work and give a seminar presentation of it before submission. The duration of the micro project should be about 14 -16 (fourteen to sixteen) student engagement hours during the course. The students ought to submit micro-project by the end of the semester to develop the industry-oriented COs.
A suggestive list of micro-projects is given here. This has to match the competency and the COs. Similar micro-projects could be added by the concerned course teacher:
- a) Transistor Amplifier: Build a common emitter amplifier using transistor and prepare a mini project report (Duration: 6-8 hours)
- b) Op-Amp: Build any application of Op-Amp (IC-741) and prepare a mini project report (Duration: 6-8 hours)
- c) Oscillator: Build any basic oscillator circuit and prepare a mini project report (Duration: 6-8 hours)
- d) AC Power Control: Build any application of AC power control using TRIAC (Duration: 6-8 hours)
- e) DC Power Control: Build any application of DC power control using SCR (Duration: 6-8 hours)
- f) Timer IC 555: Build any circuit using timer IC 555 and prepare a mini project report (Duration: 6-8 hours)
- g) Battery Chargers: Build a mobile/USB battery charger using solar cell (Duration: 6-8 hours)
- h) Voltage Regulator: Build variable voltage regulator using LM317 (Duration: 6-8 hours)
13. SUGGESTED LEARNING RESOURCES
| Sr. No. | Title of Book | Author | Publication with place, year and ISBN |
|---|---|---|---|
| 1 | Basic Electronics and Linear Circuits | N.N. Bhargava , D.C. Kulshreshtha , S.C. Gupta | McGraw Hill Education, ISBN: 9781259006463 |
| 2 | Electronic Devices and Circuit: An Introduction | Mottershead, Allen | Goodyear Publishing Co., New Delhi, ISBN : 9780876202654 |
| 3 | Principles of Electronics | V.K.Metha, Rohit Mehta | S. Chand, New Delhi, 2014, ISBN: 978-8121924504 |
| 4 | Fundamentals of Electronic Devices and Circuits | Bell, David | Oxford University Press New Delhi, 2015, ISBN : 9780195425239 |
| 5 | Electronic Principles | Malvino A. P. | MGH, Latest edition. |
| 6 | Op Amps and linear integrated circuit | Gayakwad | Phi |
| 7 | Thyristor engineering | M S Berde | Khanna publishers. |
14. SOFTWARE/LEARNING WEBSITES
- Datasheet Cafe
- Williamson Labs
- LearnerTV
- CADSoft
- GTU Lectures
- NPTEL
- Khan Academy
- YouTube
- All Datasheet
- Electronics Tutorials
- Instructables Basic Electronics
- Makerspaces Basic Electronics
- Electronics Components Battery Protection
15. PO-COMPETENCY-CO MAPPING
| Semester II | Electronic Circuits & Applications (Course Code: 4321104 ) | Electronic Circuits & Applications (Course Code: 4321104 ) | Electronic Circuits & Applications (Course Code: 4321104 ) | Electronic Circuits & Applications (Course Code: 4321104 ) | Electronic Circuits & Applications (Course Code: 4321104 ) | Electronic Circuits & Applications (Course Code: 4321104 ) | Electronic Circuits & Applications (Course Code: 4321104 ) |
|---|---|---|---|---|---|---|---|
| POs | POs | POs | POs | POs | POs | POs | |
| Competency & Course Outcomes | PO 1 Basic & Discipline specific knowledg e | PO 2 Problem Analysis | PO 3 Design/ develop ment of solution s | PO 4 Engineerin g Tools, Experiment ation & Testing | PO 5 Engineering practices for society, sustainability & environment | PO 6 Project Manage ment | PO 7 Life- long learning |
| Competency | To maintain various electronic circuits and it's applications | To maintain various electronic circuits and it's applications | To maintain various electronic circuits and it's applications | To maintain various electronic circuits and it's applications | To maintain various electronic circuits and it's applications | To maintain various electronic circuits and it's applications | To maintain various electronic circuits and it's applications |
| Course Outcomes | 3 | 2 | 2 | 2 | - | - | 1 |
| Co1) Use electronic devices for various applications | |||||||
| Co2) Test different amplifiers and oscillator. | 3 | 2 | 2 | 2 | - | - | 1 |
| Co3) Use different Thyristors for various applications | 3 | 2 | 2 | 2 | - | 1 | 1 |
| Co4) Use integrated circuits for various applications | 3 | 2 | 2 | 2 | 1 | 2 | 2 |
| Co5) Build Regulated Power Supply for Green Technology | 3 | 2 | 3 | 2 | 2 | 2 | 2 |
Legend: ' 3' for high, ' 2 ' for medium, '1' for low and '-' for no correlation of each CO with PO.
16. COURSE CURRICULUM DEVELOPMENT COMMITTEE
GTU Resource Persons
| S. No. | Name and Designation | Institute | Contact No. | |
|---|---|---|---|---|
| 1 | Ajay R. Chandegara | G.P. Ahmedabad | 9898032871 | ajay_chandegara@yahoo.com |
| 2 | Bhadreshkumar B. Renuka | A.V.P.T.I., Rajkot | 9426783082 | renukasir@gmail.com |