UNIT I
PN JUNCTION DIODE: Energy bands in intrinsic and extrinsic silicon; Carrier transport:
diffusion current, drift current, mobility and resistivity; Generation and recombination of
carriers; Poisson and continuity equations, Open circuited p-n junction, Biased p-n junction,
current components in PN junction Diode, diode equation, V-I Characteristics, temperature
dependence on V-I characteristics, Diode resistance, Diode capacitance, energy band diagram of PN junction Diode.

UNIT II
SPECIAL SEMICONDUCTOR DEVICES: Zener Diode: Breakdown mechanisms,
applications, LED, LCD, Photo diode, Varactor diode, Tunnel Diode, DIAC, TRIAC, SCR,
UJT , Photo transistor, IR Emitters, Solar cell, Schottky Barrier diode – Construction,
operation and characteristics.

UNIT III
RECTIFIERS AND FILTERS: Basic Rectifier setup, half wave rectifier, full wave
rectifier, bridge rectifier, characteristics of rectifiers, rectifier circuits-operation, input and
output waveforms, Filters, Inductor filter, Capacitor filter, L- section filter, Π- section filter,
Multiple L- section and Multiple Π section filter ,comparison of various filter circuits in
terms of ripple factors.

UNIT IV
TRANSISTOR CHARACTERISTICS: BJT: Construction, transistor current components,
transistor configurations, transistor as an amplifier, characteristics of transistor in Common
Base, Common Emitter and Common Collector configurations, Ebers-Moll model of a
transistor, punch through/ reach through, typical transistor junction voltage values.
FET: Types, JFET: construction, operation, characteristics, MOSFET: types, construction,
operation, characteristics, comparison between JFET and MOSFET.

UNIT V
TRANSISTOR BIASING AND THERMAL STABILIZATION: Need for biasing,
operating point, DC and AC load line analysis, BJT biasing- methods, , fixed bias, collector
to base bias, self-bias, Stabilization against variations in VBE, Ic, and β, Stability factors, (S,S’,S’’), Bias compensation, Thermal runaway, Thermal stability. FET Biasing methods.

TEXT BOOKS:
1. Electronic Devices and Circuits, J.Millman, C.HalkiasTata Mc-Graw Hill,
4thEdition,2010.
2. Electronic Devices and Circuits, David A.Bell, Fifth Edition, Oxford University Press,
2009.
3. Electronic Devices and Circuits, R.L. Boylestad and Louis NashelskyPearson
Publications,,9thEdition,2006

REFERENCES:
1. Integrated Electronics, Jacob Millman, C. Halkies, C.D.Parikh, Tata Mc-Graw Hill,2009.
2. Electronic Devices and Circuits, Salivahanan, Kumar, Vallavaraj, Tata Mc-Graw Hill,
Second Edition.
3. Electronic Devices and Circuits, BV Rao, KBR Murty, K Raja Rajeswari, PCR
PantuluPearson, 2nd edition.