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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Work planकार्य योजनाStep by step with your guide / trainer.
Chapter 1: SCR CharacteristicsChapter 2: Triggering CircuitsChapter 3: Controlled RectifiersChapter 4: Choppers and InvertersChapter 5: AC Power Control
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File, report & vivaफ़ाइल, रिपोर्ट और वाइवाPractical file / report checked, mock viva before the final one.
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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 · 14 topics
01Chapter 1: SCR Characteristics
3 topics+
- V-I characteristics of SCR
- Latching and holding current
- Effect of gate current on breakover voltage
02Chapter 2: Triggering Circuits
3 topics+
- R triggering
- RC triggering
- UJT relaxation oscillator triggering
03Chapter 3: Controlled Rectifiers
3 topics+
- Single-phase half-wave controlled rectifier
- Single-phase half-controlled and fully controlled bridge
- Effect of freewheeling diode
04Chapter 4: Choppers and Inverters
3 topics+
- Step-down chopper with variable duty cycle
- Single-phase bridge inverter
- MOSFET / IGBT characteristics
05Chapter 5: AC Power Control
2 topics+
- V-I characteristics of DIAC and TRIAC
- Lamp dimmer / fan regulator using DIAC-TRIAC
About this course
You will be able to
- Plot V-I characteristics of SCR and find its latching and holding current
- Test R, RC and UJT triggering circuits for SCRs
- Observe output waveforms of controlled rectifiers at different firing angles
- Test a chopper and a single-phase inverter on a trainer kit
- Use DIAC-TRIAC circuits for AC power control such as a fan regulator or lamp dimmer
Who it is for
- Diploma engineering students of Semester 4 (BTEUP) - Electrical Engineering
- Polytechnic students who need regular coaching, revision and practice for the BTEUP semester examination
What you need
- Power Electronics theory running alongside
- Practical file and graph sheets
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 Lab (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.
Is the CRO used?
Yes. All waveforms are observed on a CRO / DSO and students learn to measure firing angle and voltage from the screen.
