EC2033 Power Electronics Important Questions
UNIT I
1. Characteristics of power
2. Power transistors
3. Two transistor model of SCR
4. Over current, dv/dt and di/dt.
UNIT II
1. Turn on circuits for SCR
2. Triggering with microprocessor
3. Series and parallel operations of scrs.
UNIT III
1. Converters
2. Single phase
3. Three phase
4. Dual converter.
UNIT IV
1. Voltage and current source inverters
2. AC and DC choppers
3. DC to DC converters
4. Buck, boost and buck
UNIT V
1. DC motor drives
2. Induction and synchronous motor drives
3. Battery charger
4. SMPS
5. induction and dielectric heating.
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