Electronics Engineering

Semiconductor Diodes and Applications P-N junction, Depletion layer, V-I characteristics, Ideal and practical, Diode resistance, Capacitance diode ratings (Average current, Repetitive peak current, Peak-Inverse voltage) P-N junction as rectifiers (Half wave and full wave), Filter (Shunt capacitor filter), Calculation of ripple factor and load regulation clippling circuits, Clamping circuits, Voltage multipliers. Breakdown diodes Breakdown mechanism (Zener and avalanche), Breakdown characteristics, Zener resistance, Zener diode ratings, Zener diode application as shunt regulator. Bipolar Junction Transistor (BJT) Basic construction, Transistor action CB, CE and CC configurations, Input/ output characteristics, Biasing of transistors, Fixed bias, Emitter bias, Potential divider bias, Comparison of biasing circuits, Graphical analysis of CE amplifier, Concept of voltage gain, Current gain, h-parameter model (low freq.), Computation of Ai, Av, Ri, Ro of single transistor CE amplifier configuration. Field Effect Transistor (FET) JFET: Basic construction, Principle of working, Concept of pinch-off, Maximum drain saturation current, Input and transfer characteristics, Characteristic equation, CG, CS and CD configurations, Fixed and self biasing of JFET amplifier MOSFET: Depletion and enhancement type MOSFET- Construction, Operation and characteristics. Operational Amplifier (Op-Amp) Concept of ideal operational amplifier, Ideal and practical Op-Amp parameters inverting, Non-inverting and unity gain configurations, Applications of Op-Amp as adders, Difference amplifiers, Integrators and differentiator. Switching Theory and Logic Design (STLD) Number system, Conversion of bases (Decimal, Binary, Octal and Hexadecimal numbers), Addition and Subtraction, Fractional numbers, BCD numbers, Boolean algebra, Logic gates, Concept of universal gates, Canonical forms, Minimization using K-map (Dont care conditions also). Electronics Instruments Working principle of digital voltmeter, Digital multimeter (Block diagram approach) CRO (its working with block diagram), Measurement of voltage, Current, Phase and frequency using CRO.