Electronic Devices and Circuits - (EC3353) UNIT I SEMICONDUCTOR DEVICES PN junction diode, Zener diode, BJT, MOSFET, UJT - structure, operation and V-I characteristics, diffusion and transition capacitance - Rectifiers - Half Wave and Full Wave Rectifier, Zener as regulator. (Chapter - 1) UNIT II AMPLIFIERS Load line, operating point, biasing methods for BJT and MOSFET, BJT small signal model - Analysis of CE, CB, CC amplifiers - Gain and frequency response -MOSFET small signal model - Analysis of CS, CG and Source follower - Gain and frequency response- High frequency analysis. (Chapters - 2, 3, 4) UNIT III MULTISTAGE AMPLIFIERS AND DIFFERENTIAL AMPLIFIER Cascode amplifier, Differential amplifier - Common mode and Difference mode analysis - MOSFET input stages - tuned amplifiers - Gain and frequency response - Neutralization methods. (Chapters - 5, 6) UNIT IV FEEDBACK AMPLIFIERS AND OSCILLATORS Advantages of negative feedback - Voltage / Current, Series , Shunt feedback Amplifiers - positive feedback - Condition for oscillations, phase shift - Wien bridge, Hartley, Colpitts and Crystal oscillators. (Chapters - 7, 8) UNIT V POWER AMPLIFIERS AND DC/DC CONVERTERS Power amplifiers - class A-Class B-Class AB-Class C-Power MOSFET-Temperature Effect - Class AB Power amplifier using MOSFET - DC/DC convertors - Buck, Boost, Buck-Boost analysis and design. (Chapter - 9)
