EE8552 – NOTES & QP
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| SEMESTER QP | CLICK HERE |
EE8552 – SYLLABUS
UNIT I POWER SEMI-CONDUCTOR DEVICES
Study of switching devices, SCR, TRIAC, GTO, BJT, MOSFET, IGBT and IGCT- Static
characteristics: SCR, MOSFET and IGBT — Triggering and commutation circuit for SCRIntroduction
to Driver and snubber circuits.
UNIT II PHASE-CONTROLLED CONVERTERS
2-pulse, 3-pulse and 6-pulseconverters– performance parameters –Effect of source inductance—- Firing Schemes for converter–Dual converters, Applications-light dimmer, Excitation system, Solar PV systems.
UNIT III DC TO DC CONVERTERS
Step-down and step-up chopper-control strategy– Introduction to types of choppers-A, B, C, D and E -Switched mode regulators- Buck, Boost, Buck- Boost regulator, Introduction to Resonant Converters, Applications-Battery operated vehicles.
UNIT IV INVERTERS
Single phase and three phase voltage source inverters (both1200 mode and 1800 mode)– Voltage& harmonic control–PWM techniques: Multiple PWM, Sinusoidal PWM, modified
sinusoidal PWM — Introduction to space vector modulation –Current source inverter, Applications-Induction heating, UPS.
UNIT V AC TO AC CONVERTERS
Single phase and Three phase AC voltage controllers–Control strategy- Power Factor Control — Multistage sequence control -single phase and three phase cyclo converters — Introduction to Matrix converters, Applications –welding .