CPGET-2024 Syllabus
64. ELECTRONICS
Part-A (40 Marks)
Digital Electronics:
1. Introduction to number systems, Logic gates OR, AND, NOT, XOR, NAND, NOR gates-Truth
tables-Positive and negative logic-Logic families and their characteristics-RTL, DTL, ECL, TTL
and CMOS.-Universal building blocks NAND and NOR gates. Laws of Boolean algebra De
Morgan’s Theorems-Boolean identities-Simplification of Boolean expressions-Karnaugh Maps-
Sum of Products (SOP) and Product of sums (POS).
2. Combinational and Sequential Circuits: Multiplexer and De-Multiplexer-Decoder, Half
adder, Full adder and Parallel adder circuits. Flip flops-Rs, D, JK and JK Maser-Slave (working
and truth tables) – Registers, Shift registers, Serial in Serial out, Serial in –parallel out, Parallel
in-Serial out and Parallel in Parallel out registers, -Synchronous and asynchronous binary
counters, Up/Down counters-Decade counter(7490)-working, truth tables and timing diagrams.
Semiconductor memories-RAM, ROM, PROM, EPROM, EEPROM.
3. Digital Communication:
Fourier transforms, Properties of Fourier Transform, Sampling theorem, random signals and
noise, correlation and power spectrum. Analog to digital converter, digital to analog converters,
amplitude modulation, pulse width modulation. Pulse code modulation, pulse phase modulation,
delta modulation, adaptive delta modulation, amplitude shift keying, frequency shift keying,
phase shift keying, quadrature amplitude modulation. Parity check, Hamming distance,
Hamming codes, cyclic codes, Manchester code, Walsh code, NRZ coding. Paging System, global
positioning system, cellular telephone, Facsimile and videotext.
Part-B (60 Marks):
Circuit Analysis and Electronic Devices:
1. AC Fundamentals: The sine wave-Average and RMS values, the Operator J, Phasor diagram-
Phasor representation of sinusoidal currents and voltages, Complex impedance and admittance,
Polar and rectangular forms of complex numbers, Circuit analysis using complex number
representation. 2. Passive networks: Concept of voltage and current sources-Kirchoffs Voltage
Law(KVL) and Kirchoff’s Current Law (KCL)-Applications to simple networks consisting of
resistors with AC and DC sources-Solution of networks using node and mesh analysis. 3.
Network theorems (DC and AC): Superposition Theorem-Thevenin’s Theorem-Norton’s
Theorem-Maximun power transfer Theorem-Milliman’s Theorem-Reciprocity Theorem-
Applications to simple networks. 4. Cathode Ray Oscilloscope: Cathode Ray Tube (CRT) and
its working, electron gun, focusing, deflection sensitivity, fluorescent screen. 5. RC an RL
Circuits: Transient response of RL and RC circuits with step input-time constants. Frequency
response of RC and RL Circuits- Types of Filters: Low pass filter-High pass filter-Frequency
response-Passive differentiating and integrating circuits. 6. Resonance: Series resonance and
parallel resonance RLC Circuits-Resonant Frequency- Q factor-Band width-Selectivity. 7. PN
Junction: Depletion region-Junction capacitance- Diode equation (no derivation) – Effect of
temperature on reverse saturation current-V-I Characteristics and simple applications of
(i)junction diode (ii) Zener diode (iii) Tunnel diode and (iv) Varactor diode. 8. Bipolar Junction
Transistor (BJT): PNP and NPN transistors-current components in BJT-BJT static
characteristics(Input and Output)-Early effect-CB, CC, CE configurations (cutoff, active, and
saturation regions) CE configuration as two port network-h-parameters-h-parameter equivalent
circuit. Determination of h-parameters from the characteristics. Load line analysis. Transistor
Biasing-Fixed and self bias. 9. Field Effect Transistor (FET): Construction and working of JFET
and MOSFET- output and transfer characteristics-Determination of FET Parameters. Application
of FET as voltage variable resistor and MOSFET as a switch-Advantages of FET over BJT. 10.
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CPGET-2024 Syllabus
Uni Junction Transistor (UJT): Construction and working of UJT – Characteristics. Application
of UJT as a relaxation oscillator. 11. Sillicon Controlled Rectifier (SCR): Construction and
working of SCR. Two transistor representation, Characteristics of SCR. Application of SCR for
power control. 12. Photo Electronic Devices: Construction and characteristics of Light
Dependent Resistor (LDR), Photo voltaic cell, Photo diode, Photo transistor and Light Emitting
Diode (LED).
Analog Circuits and Communications:
1. Power Supplies: Rectifiers-Halfwave, fullwave and bridge rectifiers-Efficiency-Ripple factor-
Regulation – Harmonic components in rectified output – Types of filters- Choke input (inductor)
filter- Shunt capacitor filter-L section and π section filters- Block diagram of regulated power
supply – Series and shunt regulated power supplies – Three terminal regulators (78XX and
79XX) – Principle and working of switch mode power supply (SMPS). 2. RC Coupled Amplifier:
Analysis and frequency response of single stage RC coupled CE amplifier. 3. Feedback: Positive
and negative feedback – Effect of feedback on gain, band width, noise, input and output
impedances. 4. Operational Amplifiers: Differential amplifier Block diagram of Op-Amp-Ideal
characteristics of Op-Amp- Op- Amp parameters- Input resistance- Output resistance- Common
mode rejection ratio (CMMR)-Slew rate- Offset voltages-Input bias current-Basic Op-Amp
circuits- Inverting Op-Amp- Virtual ground-Non-inverting Op-Amp-Frequency response of Op-
Amp. Interpretation of Op-Amp data Sheets. 5. Applications of Op-Amps: Summing amplifier-
subtractor- Voltage follower- Integrator-Differentiator – Comparator- Logarithmic amplifier- Sine
wave [Wein Bridge] and square wave [Astable] generators- Triangular wave generator- Monostable
multivibrator- Solving simple second order differential equation. Basic Op-Amp series regulator
and shunt regulator – IC 555 Timer [Block diagram and its working] – IC 555 as monostable and
astable multivibrators. 6. Communications: Need for modulation-Types of modulation-
Amplitude, Frequency and Phase modulation. Amplitude modulation-side bands-modulation
index- square law diode modulator- Demodulation- diode detector. Frequency modulation
working of simple frequency modulator- Ratio detection of FM waves- Advantages of frequency
modulation. AM and FM radio receivers [block diagram approach].
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