electronics p.munireddy govt.h.s, santhipuram band theory of solids intrinsic and extrinsic...
TRANSCRIPT
ELECTRONICS
P.MUNIREDDYGOVT.H.S, SANTHIPURAM
• BAND THEORY OF SOLIDS• INTRINSIC and EXTRINSIC
SEMICONDUCTORS• JUNCTION DIODE –PROPERTIES AND USES• TRANSISTORS –PROPERTIES AND USES• RADIO and T.V -BASIC PRINCIPLES OF
WORKING• COMPUTER- BASIC PRINCIPLES OF
WORKING
Topics in electronics
Band Theory of solids
Conduction band
Valence band
Valence band
Conduction band
Valence band
Conduction band
EG
EG
Insulator
ConductorSemiconductor
> 3 eV
1 eV
Formation of
holeConduction Band
Valence Band
Formation of hole Movement
Conduction Band
Valence Band
ELECTRIC CONDUCTION IN INTRINSIC SEMICONDUCTORS
Charge carriers in semiconductors
• P-type semiconductor
• N-type semi conductor
JUNCTION DIODE - PROPERTIES and USES
Types of semi conductors
P-type semi conductor
N- Type semi conductor
P-type semiconductors
Ge
Ge
Ge
Ge
Ge
Ge
Ge
Ge
GaGe
n-type semiconductors
Ge
Ge
Ge
Ge
Ge
Ge
Ge
Ge
PGe
Formation of p- n junction
• P-type and n- type semiconductors
• Recombination of electrons and holes during the formation of junction
Depletion region
• P-n junction diode with depletion region
Structure of junction diode
• P- n junction diode
Reverse bias condition
TRANSISTORS – PROPERTIES and USES
• Two types of junction transistors
RADIO and TELEVISION Basic principles of working
• Radio broad casting and reception
WORKING OF T. V
Computer - basic principles of working
• Black diagram of computer
C.P.U
• In side and side c.p.u.
acknowledgement
• 10th class text book• .www.users.bigpond.com• www.citycolligiate .com• www.tpub.com• www.bestanimation.com• www.fortunecity.com• www.k-12 solid state physics.com• WWW.K-12 physics.com