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org iti> P acaion art as anode while the
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2). Reverse Biaaing.',
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ig Wwnviethad tin denies wile diode -
 
 
 
 
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yomies potent] jive evo tvdebs
When the applied velbage Vs Rise thaw
basricn wikeqe nega germrivral Oyo
baay pur athe yee eleubzons’ ty move
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pom tive teimival pur he Wotes
trom P Azjn qe Maesion _ ok, feds
‘the depleten Aegin wider\asge maafonitg: change noe
(an Caos the junction oe prectute hee
4onuead cuyrent « i‘ : :
Current Flow vom vegative bo positive
By atleny . .
Reverse biasing PN juvetisn Ti
ode. :
pled
  
pom tive pounvdl
pxFeanal De vorage ;
ud vegative fewmiwal
Ye wonuietted fenyegion a
we tewnett4A +0 Pagion fits viaig.
tovdigion. called Reverse viewing
Ap’ tiwag -tawven Stow. ihe aewey Bs
va tannceked -gerios, with Diode ° aywhen pir junction 1s Aeverse bYAS , Negative |
wiv atnaets He Wales y  posstive termiua/
rats the dvee elections owed Frown uwetion «
No Change (AMAL Croes ‘ioe. junction
woles \ cleclasvs away fom Junction oo
Deplebion Apion dlls Irwrcased ,
Que to the barier potential ako Introased
when Apry weikage Aevene Curent drow
due bb Some minority Charge cburiers «
Luentt ver Small .
Reverse voltage is \nteaned beyond
te Value, The lange Anverse tuwent Ary
dawning she diodes This vs Cetled as
Yevelse reakdown .
(hanastenistics .
Forward bias
eo)
oe
HV oO
kote woltapea
ED (Lge Emitting piode >
=> FD \e an optical diode
=> \ED emits light when iw Forward bian.
= Ep ts similar to PN funehow diode »
> Tr Gymbo) Wo Anow a jhe
Aovice Units ight entry an
Basic operation : wa
whentia & PM junsiov ve Fonwand bias
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LED 1G 1 Fonweond bias «
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uke lon. when poth Ge Arcwowbine the
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exyellivg, Tyne Ra used» , ‘
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ne
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v4 exremal Wikaqe goure ay,
i> Anode , ts comnetted
‘40 Podtive a batho?
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b weqatne 4 bate
when the Ve Aupply, vitae & ger: Holes
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fowelade the Juniton: —_
 
 
 
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yo > Te nas, bd erin
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cathode bonnevted b Popa A val
 
os Tent doe te dango
Jo work \h veverse bias,
 
 
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i ven, oelw Broakdurwnver
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ahh Ji swab py it
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