NDSS Academy

Power Electronics (Diploma)

Thyristors and power devices, controlled rectifiers, choppers, inverters and AC voltage controllers.

6 MonthsDuration 5Chapters25Topics
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Syllabus · पाठ्यक्रम

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01Unit 1: Power Semiconductor Devices 5 topics
  1. SCR: construction, two-transistor analogy and V-I characteristics
  2. Latching and holding current, ratings
  3. TRIAC and DIAC
  4. GTO, power MOSFET and IGBT
  5. Comparison of power devices
02Unit 2: SCR Triggering, Commutation and Protection 5 topics
  1. Methods of turning on an SCR
  2. R, RC and UJT triggering circuits
  3. Natural and forced commutation
  4. Series and parallel operation
  5. Protection: snubber, fuse, heat sink
03Unit 3: Controlled Rectifiers 5 topics
  1. Single-phase half-wave controlled rectifier with R and RL load
  2. Freewheeling diode
  3. Single-phase half-controlled and fully controlled bridge
  4. Average output voltage and firing angle
  5. Three-phase controlled rectifiers (basic)
04Unit 4: Choppers and Inverters 5 topics
  1. DC chopper principle and duty cycle
  2. Step-down and step-up choppers
  3. Single-phase half-bridge and full-bridge inverters
  4. PWM technique (basic)
  5. Applications in DC drives
05Unit 5: AC Controllers and Applications 5 topics
  1. AC voltage controller using TRIAC
  2. Fan regulator and light dimmer
  3. Cycloconverter (basic)
  4. UPS and SMPS
  5. Speed control of DC and AC motors

About

You will be able to

  • Explain the construction, characteristics and ratings of SCR, TRIAC, DIAC, power MOSFET and IGBT
  • Describe SCR triggering (R, RC, UJT), commutation and protection circuits
  • Analyse single-phase half-wave and full-wave controlled rectifiers and calculate average output voltage
  • Explain step-down and step-up choppers and calculate output voltage from duty cycle
  • Explain single-phase inverters, AC voltage controllers and cycloconverters
  • Describe applications: fan regulator, UPS, SMPS and motor speed control

Who it is for

  • Diploma engineering students of Semester 4 (BTEUP) - Electrical Engineering, Electronics Engineering
  • Polytechnic students who need regular coaching, revision and practice for the BTEUP semester examination

What you need

  • Basic electronics (diodes, transistors) and AC fundamentals
  • Scientific calculator

Questions

Which syllabus does this course follow?

It follows the BTEUP (Board of Technical Education, Uttar Pradesh) syllabus of Power Electronics (Semester 4). Where your polytechnic follows a different board or a revised syllabus, the centre follows your own syllabus.

Will it help in the semester examination?

Yes. Every unit is covered with solved examples, unit-wise MCQs and previous-year style questions for the BTEUP theory and practical exams.

Are waveforms explained?

Yes. Output waveforms of every converter are drawn and explained, as they are asked in the BTEUP examination.

Download the syllabus (PDF)

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