Fundamentals of Power Electronics (313335) MSBTE QuAn Question Answer Book

Description

QuAn Book – Fundamentals of Power Electronics (313335)

The QuAn Book for Fundamentals of Power Electronics (Subject Code: 313335) is a premium study material designed for MSBTE K-Scheme Diploma Engineering students. It provides a complete, topicwise question bank with model answers to help you score maximum marks.

Syllabus Coverage (MSBTE K-Scheme)

• Unit I – Power Electronic Devices: Power electronic system: general block diagram, need, advantages and disadvantages; Switching in power electronic circuit: Need and its importance; Ideal switch and practical switch: concept, general characteristics, conduction losses, switching losses; SCR: Construction, working principle, Static V-I characteristics, switching characteristics, and applications; IGBT: Construction, working principle, Static V-I characteristics, switching characteristics, and applications; Power MOSFET: Construction, working principle, Static V-I characteristics, and applications; TRIAC: Construction, working principle, Static V-I characteristics, and applications
• Unit II – Protection and Firing Circuit of Thyristor: di/dt protection: need, snubber circuit; dv/dt protection: need, snubber circuit; Overvoltage protection: need, internal & external overvoltage, voltage clamping device; Overcurrent protection: need, electronic crowbar circuit; Thermal Protection of SCR: Need, thermal resistance, and heat sink specification; Firing circuit: Features and general layout of firing scheme; SCR turn-on methods: forward voltage triggering, gate triggering, dv/dt triggering, temperature triggering, and light triggering; SCR Firing circuit: resistance firing circuit (no derivation), RC firing circuit (no derivation), pulse transformer based triggering; SCR commutation techniques: load commutation (Class A), line commutation (Class F)
• Unit III – Controlled Converters: Basic terminologies: conduction angle, firing angle, output voltage, output current, voltage across switch, source current, source voltage; Single phase half wave controlled rectifier with R, RL load: Circuit diagram, working, input-output waveforms, derivation for average output voltage, equations for output currents, voltages & power, and effect of freewheeling diode; Single phase full wave controlled bridge rectifier with R, RL load: Circuit diagram, working, input-output waveforms, derivation for average output voltage, equations for output currents, voltages & power; Three phase full wave controlled bridge rectifier: working principle with R load, input-output waveforms; Inverters: concept of voltage source inverter and current source inverter; Single phase half wave bridge inverter with R, RL load: Circuit diagram, working, input-output waveforms; Single phase full wave bridge inverter with R, RL load: Circuit diagram, working, input-output waveforms; Pulse width modulation: importance/need, types; Sinusoidal pulse width modulation: concept, working principle and waveforms
• Unit IV – DC-DC Converters: Basic terminologies: duty ratio, turn on period, turn off period, chopping period; Control strategies of chopper: Constant frequency system, variable frequency system; Step up chopper: circuit diagram, working, waveforms and output voltage equation; Step down chopper: circuit diagram, working, waveforms and output voltage equation; Buck-Boost chopper: circuit diagram, working, waveforms and output voltage equation
• Unit V – Applications of Power Electronics: Charge Controller: Concept, types, applications in Photovoltaics (PV) system with block diagram; Speed control of ceiling fan using TRIAC: Working, Block Diagram, advantages; AC to AC converter using DC link: Concept, applications in Wind Power Generation; HVDC converter station: Concept, Circuit Diagram

What’s Inside the QuAn Book?

• Topicwise Question Bank – All important 2, 4 and 6 marks questions by unit
• Model Answers – Step-by-step solutions with diagrams and marking scheme
• Previous Exam Questions – Actual MSBTE Summer and Winter exam questions
• Frequency Analysis – Most repeated questions highlighted for focused study
• Marking Scheme – Know exactly what to write to score full marks
• Last Minute Ready – Ideal for quick and focused exam preparation

Subject Code: 313335 | Subject: Fundamentals of Power Electronics | Board: MSBTE | Scheme: K Scheme | Published by: ReemaS Edutech, Kolhapur