EC2033 POWER ELECTRONICS SYLLABUS

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UNIT I POWER ELECTRONICS DEVICES 9

Characteristics of power devices – characteristics of SCR, diac, triac, SCS, GTO, PUJT

– power transistors – power FETs – LASCR – two transistor model of SCR – Protection

of thyristors against over voltage – over current, dv/dt and di/dt.

UNIT II TRIGGERING TECHNIQUES 9

Turn on circuits for SCR – triggering with single pulse and train of pulses – synchronizing

with supply – triggering with microprocessor – forced commutation – different techniques

– series and parallel operations of SCRs.

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UNIT III CONTROLLED RECTIFIERS 9

Converters – single phase – three phase – half controlled and fully controlled rectifiers –

Waveforms of load voltage and line current under constant load current – effect of

transformer leakage inductance – dual converter.

UNIT IV INVERTERS 9

Voltage and current source inverters, resonant, Series inverter, PWM inverter. AC and

DC choppers – DC to DC converters – Buck, boost and buck – boost.

UNIT V INDUSTRIAL APPLICATIONS 9

DC motor drives – Induction and synchronous motor drives – switched reluctance and

brushless motor drives – Battery charger – SMPS – UPS – induction and dielectric

heating.

TOTAL= 45 PERIODS

TEXT BOOKS

1. Muhamed H.Rashid : Power Electronics Circuits, Devices and Applications, 3rd

Edition. 2004 PHI.

2. M.D. Singh and K.B. Kanchandani, Power Electronics, 2nd Edition, TMH, 2007.

REFERENCES

1. Sen: Power Electronics, TMH, 1987.

2. Dubey: Thyristorised Power Controllers, Wiley Eastern 1986.

3. Vithayathil: Power Electronics – Principles and Applications, McGraw-Hill, 1995.

4. Lander: Power Electronics, 3rd Edition, McGraw-Hill, 1994.

5. Jacob, Power Electronics, Thomson Learning, 2002.

6. V.R. Moorthy, Power Electronics, Oxford University Press, 2005.