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Module-2-Attion and Choppr
Comnetation
an
>uoingo-an thyisto
dunice mans^ that^ bging
fom 4wod
konductien modu to towuad
iuyistolsck.
ang an
O thyitou uayuius
Anodaonet to^ b^ uducad than
holding wvut
.no (^) netag to emoe th^ zta
prlication
Charg aios.
Mlasstication o,^ Conmmetation
O dechniqyues
Natal
lomnmuttatien linu^
conmuttatien (las^ F)
Loadcomtation (CasA)
) (^) orcd
comuctatien (^ las6, ClamC, lanb)
Natnalomtatien :
>Natual
comutation alu to^ the
ithet tle aid o etpres
an
the
’ hchr
werds (^) this (^) cincut is
by itrel due te th Pallomd te tun
natal buhanioua
Load Cowtatien:
’Abo (^) knun as
las-A conmuctatien
’Hucommetation
o (^) sCR (^) is donu (^) by (^) th (^) Cead
las A-odatien i aovort.
.
to tuon Bu
the Cincuit.
>lead
nmmction asdass A-
n thutor inawcts comutation is^ poiLt.
uhen upplid hrom oC
Sowa.
ponibla
t (^) is (^) ot (^) poitbe to (^) AC Cinauits ’ (^) Th (^) Cinauit is
enigind rom c Sewa, th
| (^) s (^) to (^) mauh (^) wali (^) and luourt
then dcays to bo
C
bloking mdi'
load (^) comtation js (^) also (^) newwn as
- suOnart^ Co. ahien a (^) sl-cowetation
wlanlams
Vect)
Aiagram
Bupply wottag
led (^) aopnt (^) ducays to (^) Zeu (^) hea, ndodampud'LC ciautt
" (^) at (^) wT=T (^) Whn thuist (^) cvyunt (^) dcays to Z.
s+<stt=0L
e
wt
wuau (^) thn it (^) reaches mor (^) waw (^) and
>Wt to Zv then^ day
buom laplu trantem
Qudrut yet ()
I, = als Rt LSt
I: klL
aothu (^) Chaactoigtica (^) sayuation,
Buomes
Capacto gcta' (^) Changd n (^) hoad and wrrts (^) &tt
hangu (^) and (^) tarts to (^) go wuu (^) htho diharg^ and^ apa charg (^) and (^) outuct (^) iurt dur ’new'carato (^) dlaw and (^) Wetag Inrs.
’ (^) lass B (^) aontatien o thyito is^ nsth toud conmactabicn "tuiiaqu that is ya o (^) ton oth (^) an (^) SCR ’In (^) this iconmutatien (^) method, dhu (^) dewia gct tund o^ by (^) bilding manno nnu^ ed^ in^ a^ graug om (^) atod to (^) anod
thutis (^) tehiu is o (^) onart urud^ as^ oert (^) Canm mlu (^) commtdtien
Coauit diagon
.
A
A-and (- cathoda
Ayunpti
Load aet us Centtrt
" (^) LC (^) iruit is (^) Onating
uintaly Changd
by ls.
Wleking o, Mas BComntucatioa
las-B mumtation i (woing) ep- (^) Tndallu thu (^) hain (^) thyuto (^) CT) istd oh wth th (^) lead (^) connucd. hu (^) kapacita (C) (^) a (^) initally ep2Aqab^ pulu (^) puu is (^) applud to Ti the (^) lead (^) cout (^) ow toning t^ on thogh Ti^ and (^) leçd tun (^) gato (^) pule (^) gien (^) to Capocet (^) gct a arlay^ sck^ TA^ then pat (^) to (^) dischoq and (^) court (^) dw to
thu
apacto (^) wottag (^) Rsfous inin (^) thadthad (^) fath, wig th
And (^) dw'to thiu (^) aunlay SCL (^) (TA)
and qtt tonnd ot
> And'th did Coms in
tewond (^) bias (^) and (^) guuonant (^) oul wourt ouw^ un^ th^ ibabuas^ and^ uonart^ uu ato ad uooutI -Iti^ wugh SCe T. rbatn I gets snud bias I. In Stat (entat also TT, is Contart hen layouctos uatag and uGnart L=5uh and C= ao uf au wd th inital uottage COOS t capacita u=3OV, thn thu nalue Loiductiontu tol aunillay thyute and uak wonet will ke?
’T (^) tuenoh SCK (^) Ti, (^) qau (^) put us (^) given do (^) SCR
and T
tusr oh SCR T dat nuis u guin do SCk
Ti: Hhats Yus (^) salld (^) (onleltnto R 2 R T Thitat, koth tfu Ti and T an tund ott and thun gat u and Ti get tirnd an and behaves w sho inutd. Conlectation:
now aoert hugh losp 1=
R aud oerd though loep2 =
teal woNurt= u+a ’ and gradually tho apaaten gcts chang1d auu to ulhich ut hirough loep ) econes^ (o'^ hena: new total^ uovt=^ k
> new duu to thi polanity T
nd naw ws apy gat at Ti and it gta tuhd
+0=
get tund
wnt thigh, LoBp 2 = ( On,
now capacitor qes -V-W' wettag Chargud, and won thugh op2 hecomes D' toBal wnrut
and T gcta tand
Lazianaw'arn'
lasD Connadation
as (^) Ts (^) ton an
notag1 dop =0.
’ Uam D- s alo knoun as and aueilloay commuttien
as Te e then Ma= Wan watag drp I, =
’woret in bepD d
oret mugh Ti
R
’ la Dis (^) a (^) foud (^) connuctation (^) dhmau to (^) tuw n SCR. nottag1 commcation
Chogass
1 A happa^ e aa^ pow^ slecbonica^ dua^ that^
conurd,
tiud c^ input^ toa^ nariabl^ DC^ actut^ diecty.
mly a oc^ to^ DD(^ Conmoto
w nothig lauct a high spud Buiteh uhich
Coniti and disslhuc the load dona at hugh rt.
A Choppn can inoas dea the oC ottag a Dtut &id
hopn
Apalicatina _ol Chorp
(^0) uud (^) in Cmetor (^) Cote
udin lcic Cas
tepdown Chopaa 3
heru
’updaun hoRpa as huck
th Tret conwtr is^ d to uduo
wottaq1 Qul at he
eutt &ide
Cpration el^ Step doun Chopneu :
DZ
Ht
variabl C Qutn
lhen chore is tund
On
unese Buas as usrert
When CH us
=0, no Tnducto dindhanges du to uhich ju wheting
id gte towcod bias T
V. Ton Toy
Lo
Awnag et ut wetag +[Vidt
Voo.
K
D= (^) duty ye (^) = (^) Ten (^) and (^) T= (^) Tont+ (^) ToFE
ds
s (^) Qtut (^) wettage = (^) Vbu
laulati :
T th (^) &witch isaays (^) OFf, (^) D=0 and
V,=
th (^) Switeh s (^) always (^) ON, T6 (^) D= D=land^ V=k. 25/ (^) thun (^) V÷015Vs.
ty yd bag valu m valu
Butuct eua
Ton- is tiu Irtonal hen
Tehtem Trtowwal wwhen CHs
Vb- utrutlloodwa/Tnput wtagi^ Wetag T-Tant Tore (^) Chopping (^) poiod
Ahanitor ec (^) cheppr (^) Ciocuit (^) (Buck Cont) is Euaplud (^) wth (^) non man (^) idal Fu (^) lead battoy^ 100v netag, (^) wavdon (^) lonsist el ueangan ulsa
l
watien (^) msin (^) an eunall (^) ylu (^) i (^) õl 25ma.
6
Vdc = Vs = 0r4x l00 =40V
350Valalat anduction iad
ChopaxA numuricala
0 Acscuit i pnaing en TKC ata ju l
Ans)= 460V
KHZ. V=350V hepping paind T= -0sme
T
and Tan -)
Jen =TxVe = 0:5x0®x35O Vs
T
'Chepning uqung
Vo=600/
460
2 Taput to Shp up (laspas aCOV The Qctautk
buLÌMdu 600V th Conducing tin
naaney fid nw ututhuct uatag
Page No.
Tont Tos
Date :
Q004 Tek/
T=300us
E
- Th a dc hopaa thu auDAg lad soVLt 50A
250 hz.-and uov adaai ON kod OFf faindaeh Gppu
hopping aruinay it.
2
Ihe=dV
Page No. Date
d=ThR= 30x2 0: V
hepring, pnizd
pply uatag
=Ax0=4ms4XO"=
Opoatin
nd Tndctor &tadi to Ghbng and=Vo
Mod
now dicd iu in F% and Tnducto &tants to disda
and ualtag, uourt aw in Sane diucien
CH ON
Appuiatiors
votrag
(^0) Und to (^) cortol tfu &ped e^ metor
when CH is and (^) lead (^) uout
Cori
rt
!yCHLL
to Pew in
`amdude
’ la B CH is a &tep-p hen that werk on
Guadrart
V.
(v, I) H
V
od-I
" oad^ gti^ diconcted^ lom^ thu^ Suith}^ a
P.' battoy is gonna Chaias thu Inducta and wset
din prbit diudon and woltag t
UenCH is ON
th
Mod II:
ductor uleos gy and poloiy hangs, naw eer
dlind mload to Qoucu hun (^) CH (^) s (^) oh pucto (^) dhoge thats (^) y/ get Chay plicctinu Guadrat in ein diucion Jsd tol rgertiukrakisg is metou aas-C heppo? las CChepra is (^) va (^2) Quadrant he (^) ho ornti beunded (^) icteen | (^) and (^) 2nd Th Quadrat |h (^) etut (^) notag us (^) aluays' tw but itha tu -. outut^ wrent P his cH woks in both (t and a mll as 2nd
(hoppe:
las (^) D (^) hoppo has 2 quadat This CH^ uhs in (^) th (^) |t as as 4 th &uadsat
nn ntt noltag may be eithei te
W (^) but (^) utut
et, is t
R
Di
opoation i
b(las D is a 2Cuadrart hoppo
whn hoth CHi and CH au tionud
bhu tdinutaneeusl
ett watag V=V and thloet uut Cert
Wow thugh he load.
hen CHI (^) and (^) CH2 (^) au (^) twrd oFF he (^) lead
ovwtoww in th damu dtien. though
ad b, (^) and d (^) du to (^) egy (^) sterd in Inductor
