EC2205-ELECTRONIC CIRCUITS I |
TRANSISTOR BIAS STABILITY |
BJT Need for biasing Stability factor - Fixed bias circuit, Load line and quiescent point. Variation of quiescent point due to 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. |
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. |
FREQUENCY 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. |
LARGE 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. |
RECTIFIERS AND POWER SUPPLIES |
Classification of power supplies, Rectifiers - Half-wave, full-wave and bridge rectifiers with resistive load. Analysis for 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. |
REFERENCE |
Text Books |
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. |
Reference Books |
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. |
|