ELECTRONIC DEVICES AND CIRCUITS | EDC

UNIT –I Semiconductors and PN junction Diode: Semi-conductor physics: n and p type semiconductors mass action law, Fermi level in intrinsic and extrinsic semiconductors, Open circuited p-n junction, Energy band diagram of p-n junction diode Forward and reverse bias, Current components in p-n junction diode , Law of junction, Diode equation Volt-ampere characteristics of p-n junction diode, Temperature dependence of V-I Characteristics ,Transition and Diffusion capacitances , Breakdown, Mechanisms in semiconductor Diodes(Avalanche and Zener break down), Zener diode Characteristics.

UNIT -II Power Amplifiers: Half wave rectifier, Full wave rectifier and Bridge Rectifier, Harmonic components in a rectifier circuit, Inductor filter, Capacitor filter, L-section filter, Π section filter and comparison of various filter circuits in terms of ripple factors, Simple circuit of a Zener diode as a voltage regulator. Special Diodes: Tunnel Diode, Varactor Diode, and LED Characteristics.

UNIT -III Bipolar Junction Transistor: Junction Transistor, Transistor Current Components, Transistor Construction, Detailed Study of currents in a transistor, Input and output characteristics of transistor in common Base, properties of a transistor's input and output in common emitter and common collector setups, Relationship between Gamma, Beta, and Alpha Values of a typical transistor junction voltage. Junction Field Effect Transistors (JFET): JFET Characteristics (n and p channels), MOSFET characteristics (Enhancement and depletion mode), Introduction to SCR and UJT

UNIT –IV Biasing and Stabilization: BJT biasing, DC Equivalent Model, Criteria for fixing operating point, Fixed bias, Collector to base bias, Self-bias techniques for Stabilization, Stabilization factors, Compensation techniques, Compensation against variation in VBE and ICO, Thermal run away, Thermal Stability

UNIT –V Amplifiers: Small Signal low frequency amplifier circuits, h-parameter representation of a transistor, Analysis of Single Stage transistor amplifier using h-parameters: voltage gain, current gain Input and Output impedance, Comparison of transistor configurations in terms of Ai, Ri, Av, Ro

Unit 1&2👉 CLICK HERE 

Unit 3👉 CLICK HERE 

Unit 4👉 CLICK HERE 

Unit 5👉 CLICK HERE