Official Bihar Engineering University examination question papers, marks distribution, and questions transcript. Available exam sessions: 2020, 2019, 2018, 2016, 2015.
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Official BEU curriculum units & topics for this examination subject.
Module 1: Power Switching Devices
Diode, Thyristor, MOSFET, IGBT: I-V Characteristics • Firing Circuit for Thyristor • Voltage and Current Commutation of a Thyristor • Gate Drive Circuits for MOSFET and IGBT
Module 2: Thyristor Rectifiers
Single-Phase Half-Wave and Full-Wave Rectifiers • Single-Phase Full-Bridge Thyristor Rectifier with R- Load and Highly Inductive Load • Three-Phase Full-Bridge Thyristor Rectifier with R-Load and Highly Inductive Load • Input Current Wave Shape and Power Factor
Module 3: DC-DC Buck Converter
Elementary Chopper with an Active Switch and Diode • Concepts of Duty Ratio and Average Voltage • Power Circuit of a Buck Converter • Analysis and Waveforms at Steady State • Duty Ratio Control of Output Voltage
Module 4: DC-DC Boost Converter
Power Circuit of a Boost Converter • Analysis and Waveforms at Steady State • Relation Between Duty Ratio and Average Output Voltage
Module 5: Single-Phase Voltage Source Inverter
Power Circuit of Single-Phase Voltage Source Inverter • Switch States and Instantaneous Output Voltage • Square Wave Operation of the Inverter • Concept of Average Voltage Over a Switching Cycle • Bipolar Sinusoidal Modulation and Unipolar Sinusoidal Modulation • Modulation Index and Output Voltage