electronics circuit
MODULE-I
Diode circuit: Load line concept, clipping circuits, comparators, sampling gate, rectifiers,
capacitive filters, additional diode circuit.
Transistor: the junction transistor, transistor as an amplifier, transistor construction, the CE
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onfiguration, the CB configuration, the CE cut-off and saturation region, common emitter
current gain, the common collector configuration, analytical expression for transistor
characteristics, the phototransistor.
Transistor at low frequency: Graphical analysis of the CE model, two-port model and hybrid
model, transistor hybrid model, the h-parameter, analysis of transistor amplifier circuit using hparameter,
the emitter follower, miller’s theorem and its duality, cascading transistor amplifiers,
simplified CE and CC configuration.
MODULE-II (10 Lectures)
Junction FET and its V-I characteristics, FET small signal model, FET biasing, MOSFET, FET
as a voltage-variable resistor (VVR), CD amplifier, the hybrid-pi CE transistor model, hybrid-pi
conductance and capacitance, validity of hybrid-pi model, variation of hybrid-pi parameters, the
CE short-circuit current gain, current gain with resistive load, single stage CE transistor amplifier
response, emitter follower at high frequency.
Classification of amplifier, distortion in amplifier, frequency response of amplifier, bode plots,
step response of amplifier, band pass of cascade stages, the RC coupled amplifier, high
frequency response of two cascaded CE transistor stages.
MODULE-III (10 Lectures)
Classification of amplifier, feedback concept, transfer gain, negative feedback, input-output
resistance, method of analysis of a feedback amplifier, voltage- series, voltage-shunt, currentseries
and current shunt feedback, effect of feedback on bandwidth, double and three pole
transfer function with feedback, approximation analysis of multi-pole feedback, voltage-series,
voltage-shunt, current- series and current-shunt frequency response, stability, gain and phase
margin, compensation, different type of oscillator, frequency stability.
MODULE-IV (10 Lectures)
The basic operational amplifier (OPAMP), differential amplifier and its transfer characteristics,
emitter coupled differential amplifier, IC-OPAMP, offset error voltage and current, temperature
drift of input offset voltage and current, measurement of OPAMP parameter and its frequency
response, different type of OPAMP compensation and its step response. Basic OPAMP
application, differential DC amplifier, AC amplifier, analog integrator and differentiator, active
filter, resonant band-pass filter, delay equalizer, comparators, sample-hold circuit, AC/DC
convertors, logarithmic amplifier, Schmitt trigger, ECL, TTL and 555-timer.
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