Your roadmap · आपका रोडमैप
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Admission & first meetingप्रवेश और पहली मुलाकातEnquire at your nearest NDSS centre, meet the teacher, fix the batch time and get your study material.
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Part 1 of the syllabusपाठ्यक्रम भाग 1Unit-wise coaching with notes and doubt classes.
Unit 1: Power Semiconductor DevicesUnit 2: SCR Triggering, Commutation and ProtectionUnit 3: Controlled Rectifiers
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Part 2 of the syllabusपाठ्यक्रम भाग 2Unit-wise coaching with notes and doubt classes.
Unit 4: Choppers and InvertersUnit 5: AC Controllers and Applications
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Unit tests & assignmentsयूनिट टेस्टRegular tests in the university / board pattern.
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Semester 4 exam (university / board)विश्वविद्यालय / बोर्ड परीक्षाPrevious papers and full revision before the exam.
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Online tests & resultऑनलाइन टेस्ट और रिज़ल्टTake the tests online; your marks and result show in your student login and at the centre.
Syllabus · पाठ्यक्रम
1 subject · 5 chapters · 25 topics
01Unit 1: Power Semiconductor Devices
5 topics+
- SCR: construction, two-transistor analogy and V-I characteristics
- Latching and holding current, ratings
- TRIAC and DIAC
- GTO, power MOSFET and IGBT
- Comparison of power devices
02Unit 2: SCR Triggering, Commutation and Protection
5 topics+
- Methods of turning on an SCR
- R, RC and UJT triggering circuits
- Natural and forced commutation
- Series and parallel operation
- Protection: snubber, fuse, heat sink
03Unit 3: Controlled Rectifiers
5 topics+
- Single-phase half-wave controlled rectifier with R and RL load
- Freewheeling diode
- Single-phase half-controlled and fully controlled bridge
- Average output voltage and firing angle
- Three-phase controlled rectifiers (basic)
04Unit 4: Choppers and Inverters
5 topics+
- DC chopper principle and duty cycle
- Step-down and step-up choppers
- Single-phase half-bridge and full-bridge inverters
- PWM technique (basic)
- Applications in DC drives
05Unit 5: AC Controllers and Applications
5 topics+
- AC voltage controller using TRIAC
- Fan regulator and light dimmer
- Cycloconverter (basic)
- UPS and SMPS
- Speed control of DC and AC motors
About this course
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
Online tests & result
Practice and unit tests online; marks and result show in your student login and at the centre.
Student login →
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.
