Electron Devices and Circuits

EC3301

ELECTRON DEVICES AND CIRCUITS

COURSE OBJECTIVES:

• To understand the structure of basic electronic devices.

• To be exposed to active and passive circuit elements.

• To familiarize the operation and applications of transistor like BJT and FET.

• To explore the characteristics of amplifier gain and frequency response.

• To learn the required functionality of positive and negative feedback systems.

UNIT I

PN JUNCTION DEVICES

PN junction diode -structure, operation and V-I characteristics, diffusion and transition capacitance - Clipping & Clamping circuits - Rectifiers - Half Wave and Full Wave Rectifier- Display devices- LED, Laser diodes, Zener diode characteristics- Zener diode Reverse characteristics - Zener diode as regulator.

UNIT II

TRANSISTORS AND THYRISTORS

BJT, JFET, MOSFET- structure, operation, characteristics and Biasing UJT, Thyristors and IGBT - Structure and characteristics. Tristics tos

UNIT III

AMPLIFIERS

BJT small signal model - Analysis of CE, CB, CC amplifiers- Gain and frequency response -MOSFET small signal model- Analysis of CS and Source follower - Gain and frequency response- High frequency analysis.

UNIT IV

MULTISTAGE AMPLIFIERS AND DIFFERENTIAL AMPLIFIER

BIMOS cascade amplifier, Differential amplifier - Common mode and Difference mode analysis - FET input stages - Single tuned amplifiers - Gain and frequency response - Neutralization methods, power amplifiers -Types (Qualitative analysis).

UNIT V

FEEDBACK AMPLIFIERS AND OSCILLATORS

Advantages of negative feedback - voltage / current, series, Shunt feedback -positive feedback - Condition for oscillations, phase shift - Wien bridge, Hartley, Colpitts and Crystal oscillators.

TOTAL: 45 PERIODS

COURSE OUTCOMES:

Upon successful completion of the course, the students will be able to:

CO1: Explain the structure and operation of PN junction devices (diode, Zener diode, LED and Laser diode)

CO2: Design clipper, clamper, half wave and full wave rectifier, regulator circuits using PN junction diodes

CO3: Analyze the structure and characteristics BJT, FET, MOSFET, UJT, Thyristor and IGBT

CO4: Analyze the performance of various configurations of BJT and MOSFET based amplifier

CO5: Explain the characteristics of MOS based cascade and differential amplifier

CO6: Explain the operation of various feedback amplifiers and oscillators

TEXT BOOKS:

1. David A. Bell, "Electronic devices and circuits", Oxford University higher education, 5th edition 2008.

2. Sedra and smith, "Microelectronic circuits",7th Edition., Oxford University Press, 2017

REFERENCES:

1. Balbir Kumar, Shail.B.Jain, "Electronic devices and circuits" PHI learning private limited, 2nd edition 2014.

2. Thomas L.Floyd, "Electronic devices" Conventional current version, Pearson prentice hall, 10th Edition, 2017.

3. Donald A Neamen, "Electronic Circuit Analysis and Design" Tata McGraw Hill, 3rd Edition, 2003.

4. Robert L.Boylestad, "Electronic devices and circuit theory", 11th edition, Pearson prentice Hall 2013.

5. Robert B. Northrop, "Analysis and Application of Analog Electronic Circuits to Biomedical Instrumentation", CRC Press, Second edition, 2012.