Notes for Power Electronics - PE by Lohit Sahoo

Intrinsic and Extrinsic Semiconductor, Ideal switch characteristics

Thyristor family: SCR, TRIAC,GTO,RCT,MCT, and Transistor Family: BJT, IGBT, and MOSFET

Thyristor protection

Firing methods of thyristor

BJT base drive

MOSFET base drive

Numericals

Un controlled Diode rectifier : Single phase half wave and full wave rectifiers with R-L and R -L-E load ,3 phase bridge rectifier with R-L and R-L-E load

Principle of phase controlled converter operation, single phase full converter with R-L and R-L-E load,3 phase full converter with R-L and R-L-E load ,single phase semi converter with R-L and R-L-E load, 3 phase semi converter with R-L and R-L-E load.

Single phase PWM rectifier, Three phase PWM rectifier.

AC voltage controller: Single phase bi-directional controllers with R and R-L load

single phase cycloconverters, ac-voltage controllers with PWM control.

Numericals

Classification: First quadrant, second quardrant, first and second quardrant, third and fourth quardrant, fourth quardrant converter.

Buck regulators, Boost regulators, Buck-Boost regulators, Cuk regulators, Isolated Types: Fly Back Converters, Forward converters, Push Pull Converters, Bridge Converter.

Inverters: PWM inverters, Single phase Bridge Inverters, 3-Phase Inverters-180 deg. conduction, 120 deg. conduction. voltage control of 3-Phase Inverters: Sinusoidal PWM , space vector modulation, Current Source Inverter, Zero Current Switching resonant inverters.

Numericals