| Course Status : | Upcoming |
| Course Type : | Core |
| Language for course content : | English |
| Duration : | 12 weeks |
| Category : |
|
| Credit Points : | 3 |
| Level : | Undergraduate/Postgraduate |
| Start Date : | 21 Jul 2025 |
| End Date : | 30 Nov 2025 |
| Enrollment Ends : | 31 Aug 2025 |
| Exam Date : | |
| Translation Languages : | English |
| NCrF Level : | 4.5 |
| Industry Details : | Communication |
|
swayam@nitttrc.edu.in, swayam@nitttrc.ac.in
Week 1
Power electronic devices
Power transistor: construction, working principle, V-I characteristics and uses.
Week 2
IGBT: Construction, working principle, V-I characteristics and uses. Concept of single electron transistor (SET) - aspects of Nano- technology.
Week 3
SCR: construction, two transistor analogy, types, working and characteristics. SCR mounting and cooling.
Week 4
Types of Thyristors: SCR, LASCR, SCS, GTO, UJT, PUT, DIAC and TRIAC
Thyristor family devices: symbol, construction, operating principle and V-I characteristics.
Week 5
Protection circuits: over-voltage, over-current, Snubber, Crowbar
Week 6
SCR Turn-On methods: High Voltage thermal triggering, Illumination triggering, dv/dt triggering, Gate triggering. Gate trigger circuits – Resistance and Resistance-Capacitance circuits.
Week 7
SCR triggering using UJT, PUT: Relaxation Oscillator and Synchronized UJT circuit. Pulse transformer and opto-coupler based triggering.
Week 8
SCR Turn-Off methods: Class A- Series resonant commutation circuit, Class B-Shunt Resonant commutation circuit, Class C-Complimentary Symmetry commutation circuit,
Week 9
Class D –Auxiliary commutation, Class E-External pulse commutation, Class F- Line or natural commutation.
Week 10
Phase control: firing angle, conduction angle. Single phase half controlled, full controlled and midpoint-controlled rectifier with R, RL load: Circuit diagram, working, input- output waveforms, equations for DC output and effect of freewheeling diode.
Week 11
Different configurations of bridge-controlled rectifiers: Full bridge, half bridge with common anode, common cathode, SCRs in one arm and diodes in another arm.
Week 12
Applications: Burglar’s alarm system, Battery charger using SCR, Emergency light system, Temperature controller using SCR and; Illumination control / fan speed control TRIAC.
Week 13
SMPS. UPS: Offline and Online; SCR based AC and DC circuit breakers.
1. Ramamoorty M., An Introduction to Thyristors and their applications, East-West Press Pvt. Ltd., New Delhi, ISBN: 8185336679.
2. Sugandhi, Rajendra Kumar and Sugandhi, Krishna Kumar, Thyristors: Theory and Applications, New Age International (P) ltd. Publishers, New Delhi, ISBN: 978-0-85226-852-0.
3. Bhattacharya, S.K., Fundamentals of Power Electronics, Vikas Publishing House Pvt. Ltd. Noida. ISBN: 978-8125918530.
4. Jain & Alok, Power Electronics and its Applications, Penram International Publishing (India) Pvt. Ltd, Mumbai, ISBN: 978-8187972228.
5. Rashid, Muhammad, Power Electronics Circuits Devices and Applications, Pearson Education India, Noida, ISBN: 978-0133125900.
Allamsetty
Hema Chander received the Ph.D. degree in electrical engineering
from the National Institute of Technology Raipur, Raipur, India, in 2020. He is
currently an Assistant Professor with the Department of Electrical and
Electronics Engineering, National Institute of Technology Puducherry, Karaikal,
India. He has experience in designing and development of power electronic
converters for solar applications. His research interests include dc–dc converters
and their control, fast charging techniques of electric vehicle battery,
multilevel inverters and their control, renewable energy applications, and
battery management systems.
"The SWAYAM Course Enrolment and learning is free. However, to obtain a certificate, the learner must register and take the proctored exam in person at one of the designated exam centres. The registration URL will be announced by NTA once the registration form becomes available. To receive the certification, you need to complete the online registration form and pay the examination fee. Additional details, including any updates, will be provided upon the publication of the exam registration form. For more information about the exam locations and the terms associated with completing the form, please refer to the form itself."
Grading Policy:
- Internal Assignment Score: This accounts for 30% of the final grade and is calculated based on the average of the best three assignments out of all the assignments given in the course.
- Final Proctored Exam Score: This makes up 70% of the final grade and is derived from the proctored exam score out of 100.
- Final Score: The final score is the sum of the average assignment score and the exam score.
Eligibility for Certification:
- To qualify for a certificate, you must achieve an average assignment score of at least 10 out of 30, and an exam score of at least 30 out of 70. If one of the 2 criteria is not met, you will not get the certificate even if the Final score >=40/100.
Certificate Details:
- The certificate will include your name, photograph, roll number, and the percentage score from the final exam. It will also feature the logos of the Ministry of Education, SWAYAM, and NITTTR.
- Certificate Format: Only electronic certificates (e-certificates) will be issued; hard copies will not be dispatched.
Once again, thanks for your interest in our online courses and certification. Happy Learning.
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