6EC3 INDUSTRIAL ELECTRONICS

UNIT 1: SEMICONDUCTOR POWER DEVICES -

Basic characteristics & working of Power Diodes, Diac,

SCR, Triac, Power Transistor, MOSFETs, IGBT, and GTO.

UNIT 2: RECTIFIERS & INVERTERS -

Working principles of single and three phase bridge rectifiers,

Voltage and current source inverters.

UNIT 3: POWER SUPPLIES:

Principle of operation of choppers. Step up, Step down and reversible

choppers. High frequency electronic ballast, Switch Mode Power Supply: Fly back converter,

forward/buck converter, Boost converter and buck-boost converter. Uninterruptible Power Supply.

UNIT 4: MOTOR CONTROL:

Introduction to speed control of DC motors using phase controlled

converters and choppers, Basic idea of speed control of three phase induction motors using voltage and

frequency control methods.

UNIT 5:

Stepper Motors: Variable reluctance, Permanent magnet and hybrid stepper motors. Induction

and dielectric heating control.