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POWER ELECTRONICS
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DI05041011
Code: DI05041011
Credits: 4
Semester 5
Nano
Power Electronics
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Follow on Instagram for UpdatesPower Electronics Syllabus — Unit-wise Content
The official GTU curriculum for Power Electronics (subject code DI05041011) as prescribed for Nano · Semester 5 divides the course into 5 units, covering 40 listed topics. The unit-wise breakdown below is read from the GTU syllabus document for this subject code, so you can check what the course actually covers before deciding which papers to attempt.
Download the official syllabus PDF (DI05041011)Unit 1 Basics of Power Semiconductor Device
- 1.1. Classification of Thyristor family.
- 1.2. Working, of SCR, IGBT ,DIAC and TRIAC
- 1.3. Three phase half wave, full wave or bridge rectifier and Single phase half wave and full wave controlled rectifiers using
Unit 2 Rectifiers & AC Voltage Controllers
- 2.1. Need of SCR protections: Overvoltage and over current protection.
- 2.2. Snubber circuit, freewheeling diode,
- 2.3. Turn off (commutation) method and types-Natural commutation, Forced commutation, Series resonance/ current commutation, Voltage commutation.
- 2.4. Specifications of SCR: Voltage, current, Power, temperature, dv/dt and di/dt
Unit 3 DC-DC Converters (Choppers)
- 3.1. Function and working of choppers
- 3.2. Types of chopper circuits: A type to E-type
- 8. 20 % GUJARAT TECHNOLOGICAL UNIVERSITY Program Name: Diploma Engineering Level: Diploma Branch: Automation and Robotics Subject Code : DI05041011 Subject Name : Power Electronics w.e.f. 2026-27 http://syllabus.gtu.ac.in/ Page 3 of 7 features of different types of choppers
Unit 4 Inverters & Cyclo converters
- 4.1. Working principle of inverter
- 4.2. Classification of inverter- 1-phase and 3-phase inverters,
- 4.3. Line commutated and forced commutated inverters
- 4.4. Series, Parallel and bridge inverter
- 4.3. Series and parallel inverter using SCR
- 4.6. Operating principle of cyclo converter.
Unit 5 Power Devices Applications in Automation & Robotics
- 5.1. Draw & explain Ac motor speed control using SCR and UJT, Draw & explain speed control using AC & dc servo motor ,Draw & explain stepper motor, Draw & explain induction motor.
- 4. 6 % Total 48 Hrs 100% SUGGESTEDPRACTICALEXERCISES: The following practical outcomes (PrOs) that are the sub-components of the COs. Some of the PrOs marked‘*’ are compulsory, as they are crucial for that particular CO. ThesePrOsneedtobeattainedatleastatthe‘PrecisionLevel’ofDave’sTaxonomyrelatedto‘PsychomotorDo main’. SR.NO Practical outcome Approx. Hrs. Required
- 1. 1. Plot V-I characteristics of SCR, TRIAC, DIAC, MOSFET, and IGBT. 4
- 2. 2. Demonstrate different triggering methods of SCR (R, RC, pulse triggering). 4
- 3. 3. Test the operation of snubber circuits and freewheeling diodes for protection. 2 GUJARAT TECHNOLOGICAL UNIVERSITY Program Name: Diploma Engineering Level: Diploma Branch: Automation and Robotics Subject Code : DI05041011 Subject Name : Power Electronics w.e.f. 2026-27 http://syllabus.gtu.ac.in/ Page 4 of 7
- 4. 4. Construct and test a single-phase controlled rectifier with resistive and inductive loads. 2
- 5. 5. Construct and test a three-phase controlled rectifier. 4
- 6. 6. Operate an AC voltage controller using TRIAC and observe output waveforms. 4
- 7. 7. Demonstrate applications of rectifiers in heating and lighting control. 2
- 8. 8. Build and test a step-down chopper for DC motor speed control. 4
- 9. 9. Build and test a step-up chopper for battery charging. 4
- 10. 10. Demonstrate multi-quadrant chopper operation for robotics drive applications. 2
- 11. 11. Construct and test a single-phase inverter using PWM control. 2
- 12. 12. Construct and test a three-phase inverter and observe harmonic reduction. 2
- 13. 13. Demonstrate a cycloconverter for variable frequency drive of an induction motor. 2
- 14. 14. Interface a servo motor drive with a power electronics circuit. 4
- 15. 15. Control a stepper motor using chopper/inverter circuits. 4
- 16. 16. Operate an induction motor drive using inverter-fed supply. 2
- 17. 17. Demonstrate working of UPS and SMPS prototypes. 2 Note i. MorePracticalExercisescanbedesignedandofferedbytherespectivecourseteachertodeveloptheindustr yrelevantskills/outcomestomatchtheCOs.Theabovetableisonlyasuggestive list. ii. 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 experimental setup 30
- 2. Operate the equipment setup or circuit 10
- 3. Follow safe practices measures 20
- 4. Record observations correctly 20
- 5. Interpret the result and conclude 20 Total 100 MAJOR EQUIPMENT / INSTRUMENTS AND SOFTWARE REQUIRED: These major equipment / instruments and Software required to develop PrOs are given below with broad specifications to facilitate procurement of them by the administrators / management of the GUJARAT TECHNOLOGICAL UNIVERSITY Program Name: Diploma Engineering Level: Diploma Branch: Automation and Robotics Subject Code : DI05041011 Subject Name : Power Electronics w.e.f. 2026-27 http://syllabus.gtu.ac.in/ Page 5 of 7 institutes. This will ensure conduction of practical in all institutions across the state in proper way so that the desired skills are developed in students. SCR/MOSFET/IGBT trainer kits. Rectifier and inverter trainer modules. DC motor and induction motor drive setups. Oscilloscope, multimeter, and power supply (0–30V, 1A).
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