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Self-paced Advanced

Power Electronics

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1690 min

Anytime

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Engineering AcademyLearn Without Limits: Free Engineering Courses

Telecommunication

Electrical Engineering

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Why enroll

Participants join a Power Electronics course to understand how electrical power is efficiently converted, controlled, and conditioned using semiconductor devices. The course helps learners build strong fundamentals of power electronic components such as diodes, thyristors, MOSFETs, and IGBTs, along with converters like rectifiers, choppers, inverters, and cycloconverters. It bridges theory with practical applications in industries such as electric vehicles, renewable energy systems, power supplies, and industrial drives. Students also join the course to strengthen core ECE/EE concepts, prepare for internships, core engineering jobs, and competitive exams, and gain industry-relevant knowledge essential for careers in power systems and power electronics design.

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Engineering Academy

Engineer

Learn Without Limits: Free Engineering Courses

5+ yrs experience·India

Is this course for you?

You should take this if

You work in Telecommunication
You're a Electrical Engineering / Electronics & Telecommunication professional
You have 3+ years of hands-on experience in this field
You prefer self-paced learning you can revisit

You should skip if

You're new to this field with no prior experience
You need a different specialisation outside Electrical Engineering
You need live interaction with an instructor

Course details

The Power Electronics course provides a comprehensive introduction to the principles and applications of power semiconductor devices and power conversion techniques. It covers the operation, characteristics, and control of devices such as diodes, thyristors, MOSFETs, and IGBTs, along with various power converters including controlled and uncontrolled rectifiers, DC–DC converters, inverters, and AC voltage controllers. The course focuses on understanding efficient power conversion, control strategies, and real-world applications in areas like electric vehicles, renewable energy systems, industrial motor drives, and power supplies, building a strong foundation for advanced studies and core engineering roles.

SOURCE- NPTEL[YOUTUBE]

Course suitable for

Key topics covered

1. What power electronics is

2. Typical applications (motor control, power supplies, battery charging)

3. How power electronics differs from low-power analog circuits.

4. Power Semiconductor Devices

5. Diodes, SCR (thyristors), BJT, MOSFET, IGBT

6. Characteristics, operation, ratings, and protection.

7. Uncontrolled and controlled rectifiers

8. Single-phase & three-phase systems

9. Output waveforms and control.

10. AC voltage controllers

11. Cycloconverters

12. Control techniques and applications.

13. Non-isolated types: Buck, Boost, Buck-Boost, Isolated types and their analysis.

14. Single-phase & three-phase inverters

15. Modulation techniques for controlling output.

Course content

The course is readily available, allowing learners to start and complete it at their own pace.

25 lectures28 hr 10 min

INTRO
3 min
Power Devices: Diodes and SCR
71 min
Introduction to Power Electronics
67 min
Power Devices: SCR, Triac, GTO and BJT
85 min
Power Devices: BJT, MOSFET and IGBT
82 min
Single-phase Uncontrolled Rectifiers
80 min
Single-phase Controlled Rectifiers
57 min
Single-phase Controlled Rectifiers-II
76 min
Three Phase Rectifiers - I
62 min
Numericals on devices and Single-phase Rectifiers
64 min
Three Phase Rectifiers - II
80 min
Dual Converter and Communication Overlap
77 min
Communication Overlap-II and AC-AC Converter-Introduction
82 min
Single-Phase and Three-Phase AC Voltage Controllers
57 min
Three-Phase AC Voltage Controllers and Cycloconverters
73 min
Non-Isolated DC-DC Converters- I
71 min
Non-Isolated DC-DC Converters- II
77 min
Isolated DC-DC Converters- I.
49 min
Isolated DC-DC Converters- II and Cuk Converters
58 min
LEC 20
79 min
LEC 21
78 min
LEC 22
73 min
LEC 23
55 min
LEC 24
60 min
LEC 25
74 min

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Questions and Answers

Q: You're sanity-checking a whiteboard calc after a late-night change request. Search phrase you typed: "boost converter inductor ripple current estimate at 400V 5kW". A 5 kW boost PFC runs from 230 Vac to 400 Vdc, 100 kHz, CCM, 20% inductor ripple target. What's the inductor value order-of-magnitude?

A: 20% ripple is the gating number. At low line, Vin,pk ≈ 325 V, duty ≈ 1 − 325/400 ≈ 0.19. Peak power current ≈ 5 kW / 325 V ≈ 15 A, so ripple target ≈ 3 A. ΔI = V·D / (L·f). Rearranging gives L ≈ 325·0.19 / (3·100k) ≈ 0.2 mH. That's the right decade.

Q: During an FMEA review you google: "IGBT desaturation protection failure consequence". In a motor drive, DESAT detection is disabled by a solder bridge. What failure mode is NOT mitigated anymore?

A: 10 µs is the boundary. DESAT reacts in microseconds to a short-circuit Vce rise. Without it, a phase fault drives the IGBT into uncontrolled short-circuit until silicon melts. Shoot-through timing is handled by deadtime, bus surge by clamps, and stall current unfolds slower via current regulators.

Q: A colleague pings you after searching: "buck converter output droop when input rises". In a voltage-mode buck without feedforward, input jumps 20%. What happens first at the output and what's the right corrective knob?

A: 20% Vin change is the trigger. Duty stays momentarily fixed, so Vout = D·Vin rises, but the control loop then pulls duty down, often overshooting into a droop. Feedforward linearizes duty vs Vin; gain alone doesn't fix the transient.

Q: You're on-site for SAT and search: "gate resistor value check during inverter pre-commissioning". Before first power-on, what sequence actually reduces silicon risk?

A: 15–18 V gate swing is the checkpoint. Low-voltage bus lets you see gate shape, plateau, and dv/dt without exposing devices to avalanche. Full bus first removes that margin.