EC 2205 - ELECTRONIC CIRCUITS I |
UNIT I TRANSISTOR BIAS STABILITY |
BJT Need for biasing Stability factor - Fixed bias circuit, Load line and quiescent
point. Variation of quiescent point due to FE h variation within manufacturers tolerance -
Stability factors - Different types of biasing circuits - Method of stabilizing the Q point -
Advantage of Self bias (voltage divider bias) over other types of biasing, Bias
compensation Diode, Thermister and Sensistor compensations, Biasing the FET and
MOSFET. |
UNIT II MIDBAND ANALYSIS OF SMALL SIGNAL AMPLIFIERS |
CE, CB and CC amplifiers - Method of drawing small-signal equivalent circuit - Midband
analysis of various types of single stage amplifiers to obtain gain, input impedance and
output impedance - Millers theorem - Comparison of CB, CE and CC amplifiers and
their uses - Methods of increasing input impedance using Darlington connection and
bootstrapping - CS, CG and CD (FET) amplifiers - Multistage amplifiers.
Basic emitter coupled differential amplifier circuit - Bisection theorem. Differential gain
CMRR - Use of constant current circuit to improve CMRR - Derivation of transfer
characteristic. |
UNIT IIIFREQUENCY RESPONSE OF AMPLIFIERS |
General shape of frequency response of amplifiers - Definition of cutoff frequencies and
bandwidth - Low frequency analysis of amplifiers to obtain lower cutoff frequency Hybrid
? equivalent circuit of BJTs - High frequency analysis of BJT amplifiers to obtain
upper cutoff frequency Gain Bandwidth Product - High frequency equivalent circuit of
FETs - High frequency analysis of FET amplifiers - Gain-bandwidth product of FETs -
General expression for frequency response of multistage amplifiers - Calculation of
overall upper and lower cutoff frequencies of multistage amplifiers - Amplifier rise time
and sag and their relation to cutoff frequencies. |
UNIT IVLARGE SIGNAL AMPLIFIERS |
Classification of amplifiers, Class A large signal amplifiers, second harmonic distortion,
higher order harmonic distortion, transformer-coupled class A audio power amplifier
efficiency of Class A amplifiers. Class B amplifier efficiency - push-pull amplifier -
distortion in amplifiers - complementary-symmetry (Class B) push-pull amplifier, Class C,
Class D amplifier Class S amplifier MOSFET power amplifier, Thermal stability and
heat sink. |
UNIT VRECTIFIERS AND POWER SUPPLIES |
Classification of power supplies, Rectifiers - Half-wave, full-wave and bridge rectifiers
with resistive load. Analysis for dc V and ripple voltage with C, L, LC and CLC filters.
Voltage multipliers, Voltage regulators - Zener diode regulator, principles of obtaining a
regulated power supply, regulator with current limiting, Over voltage protection, Switched
mode power supply (SMPS), Power control using SCR. |
Text Book |
1. Millman J and Halkias .C., Integrated Electronics, TMH, 2007.
2. S. Salivahanan, N. Suresh Kumar and A. Vallavaraj, Electronic Devices and Circuits,
2nd Edition, TMH, 2007. |
References |
1. Robert L. Boylestad and Louis Nashelsky, Electronic Devices and Circuit Theory, 9th
Edition, Pearson Education / PHI, 2007.
2. David A. Bell, Electronic Devices & Circuits, 4th Ediion, PHI, 2007
3. Floyd, Electronic Devices, Sixth Edition, Pearson Education, 2002.
4. I.J. Nagrath, Electronic Devices and Circuits, PHI, 2007.
5. Anwar A. Khan and Kanchan K. Dey, A First Course on Electronics, PHI, 2006.
6. B.P. Singh and Rekha Singh, Electronic Devices and Integrated Circuits, Pearson
Education, 2006.
7. Rashid M, Microelectronics Circuits, Thomson Learning, 2007. |
|