Questões Sobre Diodo Boylestad Cap I

 

 

I^DCJ DMJBOF OF]D UICAJI[F

Budcmd ;5;5

 

  4.;) MIFMF IMJDB Mjshrjvd hfo suds prøprids pdbdvrds f silcinihdmf md pdbdvrd imjdb dpbihdmd d uo mispfsitivf fu sistjod. [7 D pdbdvrd imjdb dpbihdmd d uo mispfsitivf fu sistjod é quj qudcmf sj hfopdrd f nuchifcdojctf rjdb hfo f imjdb, cftd-sj quj é pfssïvjb dpjrnjiìfdr f ojsof dté dticlir cïvjis sdtisndtørifs pjrtf mfs 455%, fu sjgd, dpbihd-sj d sistjods fu mispfsitivfs quj cèf dprjsjctdo pjrmds, huoprjo d sud nucìèf jxdtdojctj hfof nfi  prflrdodmd. 4. 

Mjshrjvd hfo suds pdbdvrds ds hdrdhtjrïstihds mf mïfmf imjdb j hfof jbds mjtjroicdo fs jstdmfs bildmf j mjsbildmf mf mispfsitivf. Istf é, mjshrjvd pfrquj f hurtf-hirhuitf j f hirhuitf dkjrtf jquivdbjctj dmjqudmf. [7 Mïfmf imjdb dprjsjctd hdrdhtjrïstihds mj nähib odcipubdìèf7 Mjtjroicdo fs jstdmfs bildmfs qudcmf pjroitj d pdssdljo md hfrrjctj, mjsbildmf qudcmf kbfqujid d ojsod.  

;. 

Tudb é d minjrjcìd iopfrtdctj jctrj ds hdrdhtjrïstihds mj uod hadvj siopbjs j ds mj uo mifmf imjdb6 [7 Xjoi-hfcmutrf é uo odtjridb quj pfmj dtudr hfof isfbdctj fu hfcmutfr j  pfssuir d hdpdhimdmj hdpdhimdmj mj ou oumdr mdr mj hfcm hfcmiìèf iìèf mj dhtudì dhtudìèf èf hfo lrdcmj ndhibimdmj. 8. 

4.8 OD]J[IDIX XJOIHFCMZ]F[JX Hfo suds pdbdvrds mjnicd sjoihfcmutfr, rjsistivimdmj, rjsistçchid kub` j rjsistçchid ýaoihd mj hfctdtf. [7 Xjoi-hfcmutrf é uo odtjridb quj pfmj dtudr hfof isfbdctj fu hfcmutfr j  pfssuir d hdpdhimdmj hdpdhimdmj mj ou oumdr mdr mj hfcm hfcmiìèf iìèf mj dtudìè dtudìèff hfo lrdcmj ndhibimdmj. ndhibimdmj. [jsistivimdmj7 É uod ojmimd quj sj dpbihd d hfrrjctj jbétrihd quj mjnicj fu quj sj fpj d pdssdljo md hfrrjctj jbétrihd. [jsistçchid Faoihd mj Hfctdhtf7 É d pfsiìèf jo rjbdìèf d pdssdljo md hfrrjctj bjtrihd mjctrf mj hirhuitfs hfo hfrrjctjs hfctïcud, fu sjgd, é d sfod mds rjsistçchid mj odis mj uo jbjojctf quj ictjlrd hdmd hirhuitf mj uo trdcsnfrodmfr. =. 

 

:. (d) Zsdcmf qudmrf 4.4,; j mjtjroicj d rjsistçchid uod dofstrd mj sibïhif dprjsjctdcmf uodfärjd mj 4ho uo hfopriojctf mj 8mjho.

[7 Mdmfs b ? 8ho U?:5*45S8 ℮-ho D? 4hoS;

Nøroubd

[jsfbuìèf  

?∜   

 ? :5 :5 ∜ 458 ∜

  (8) ( )

[? 4:5555 ℮-ho 

 

 

(k)[jpitd d bjtrd (d) sj f hfopriojctf nfr mj 4 ho d ärjd mj = hoS;. [7 Mdmfs Nøroubd [jsfbuìèf     () b ? 4ho ?∜    ?   ∜  ∜    (= ) U?:5*45S8 ℮-ho D? =hoS;

[? 4;:55 ℮-ho

(h)[jpitd d bjtrd (d) sj f hfopriojctf nfr mj 1 ho j d ärjd mj 5,: ho;. [7 Mdmfs Nøroubd [jsfbuìèf     (1) b ? 1ho   ?∜    ?   ∜  ∜  (.  ) U?:5*45S8 ℮-ho D? 5.:hoS;

>. 

[? 155555 ℮-ho

(m) [jpitd d bjtrd (d) pdrd f hfkrj j hfopdrj fs rjsubtdmfs. [7 Mdmfs Nøroubd [jsfbuìèf     (8) b ? 8ho   ?∜    ? 45∛> ∜  ( ) U? 45S->℮  D? 4hoS;

[? 8*45∛>℮ fu 5.555558 ℮-ho

Ujrhjkju-sj hfo fs rjsubtdmfs quj d rjsistçchid mf Odtjridb hfcmutfr é ouitf kdixd jo rjbdìèf df odtjridb sjoi-hfcmutfr.

 

>.  Jskfhj d jstruturd dtýoihd mf hfkrj j mishutd pfr quj jbj é uo kfo hfcmutfr

j mj quj nfrod sud jstruturd j minjrjctj md mf ljroëcif j mf sibïhif. [7

@?; B?1 O?41  C?4 F hfkrj é uo kfo hfcmutfr mjvimf ds sjluictjs hdrdhtjrïstihds7 4- F hfkrj é uo ojtdb ouitf utibizdmf pdrd d hfcstruìèf mj hfcmutfrjs hfcmutfrjs jbétrihfs, gä quj é ouitf m÷htib j odbjävjb. ;- Fs hfcmutfrjs mj hfkrj ldrdctjo d jbioicdìèf mj prfvävjis ndbads hdusdmds pfr odus hfctdtfs mjvimf df øximf quj sj nfrod cf hfcmutfr, hfof f quj pfmjrid fhfrrjr df dbuoïcif. Dbéo missf, mèf odifr ndhibimdmj cf usf mj sfbmds cfs tjroicdis j jojcmds. 8- Futrd hdrdhtjrïstihd é quj fs hdkfs mj hfkrj sèf ojcfs vfbuofsfs, f quj ndz hfo quj sju trdcspfrtj j icstdbdìèf sjgdo odis nähjis. n ähjis. D jstruturd é minjrjctj mf Ljroëcif j mf Xibïhif pfis jbjs dprjsjctdo = jbjtrújs cd ÷btiod hdodmd mj vdbçchid.

 

H dtrdvés mj uod minjrjcìd mj pftjchidb mj 8 ^6 [7 Mdmfs Nøroubd [jsfbuìèf q?>h Z? 8^ \6

45. 

\?q*Z

\?>*8 \? 41j^

Xj =1^ mj jcjrlid é cjhjssärif pdrd ofvjr uod hdrld dtrdvés mj uod minjrjcìd mj pftjchidb mj 4; ^, mjtjroicj d hdrld jcvfbvimd. [7 Mdmfs Nøroubd [jsfbuìèf ; q?6 \?q*Z q? =1\ Z? 4;^ \? =1^



q?   

q? 5.;:H

 

44.  Ujsquisj j mjtjroicj f cïvjb mj J, pdrd LdU j WcX, mfs odtjridis

sjoihfcmutfrjs utibizdmfs cd prätihd. Dbéo missf, mjtjroicj f cfoj mj hdmd odtjridb. [7 LdU7 é d qudctimdmj mj jcjrlid cjhjssärid pdrd quj f jbétrfc jnjtuj jssd trdcsiìèf é hadodmd mj ldp mj jcjrlid. WcX7 É uo hfopfstf uo hfopfstf quïoihf hfo dd nøroubd  nøroubd quïoihd quïoihd Wc  WcX, X, hfcajhimf  hfcajhimf tdokéo hfof Xubnjtf mj Wichf.  4.: OD]J[IDIX IC][ÏCXIHFX - ]ipfs c j p 4;. 

Mjshrjvd d minjrjcìd jctrj fs odtjridis sjoihfcmutfrjs tipf c j tipf p. [7 D minjrjcìd pfmj hfcsistir jo7

4- Cdturjzd mf Jbjojctf mj Mfpicl7 4.4 - Cf Odtjridb mf ]ipf U d iopurjzd dmihifcdmd hrid bdhucds hadodmd mj Ätfof Dhjitdctj. 4.; - Cf Odtjridb mf ]ipf C d iopurjzd dmihifcdmd nfrcjhj jbjtrújs jxtrds j é hfcajhimd hfof f ätfof mfdmfr. ;- ]ipf mj Mfpdljo. ;.4 - Iopurjzds trivdbjctjs hfof Dbuoïcif j f Läbif sèf dmihifcdmds. ;.; - Iopurjzds pjctdvdbjctjs hfof Nøsnfrf j Drsçcif sèf dmihifcdmds.

48.  Mjshrjvd d minjrjcìd jctrj iopurjzds mfdmfrds j dhjitdmfrds. [7 D odifr minjrjcìd hfcsistj cd dmiìèf mj iopurjzds, fu sjgd, cf prfhjssf mj mfpdljo, d iopurjzd mfdmfrd sèf dmihifcdmfs ätfofs Ujctdvdbjctjs, gä cd iopurjzd dhjitdmfrd sèf dmihifcdmfs ätfofs trivdbjctjs. 4=.  Mjshrjvd d minjrjcìd jctrj pfrtdmfrjs odgfritärif j oicfritärif. [7 D minjrjcìd jctrj jbjs vdi sj kdsjdr cf ]ipf jo quj sj jchfctrdo, fu sjgd, d minjrjcìd é quj pfrtdmfrjs Odgfritärifs é qudcmf jxistj uod odifr qudctimdmj mj jbjtrújs jo rjbdìèf ds bdhucds, cf bdmf C, gä dhfctjhj f icvjrsf cf Bdmf U, jxistj

uod odifr qudctimdmj mj bdhucds jo rjbdìèf df jbétrfc.  

 

4:.  Jskfhj d jstruturd dtýoihd mf sibïhif j icsird uod iopurjzd hfopfstd mj

drsçcif, hfof mjofstrdìèf pdrd f sibïhif sibï hif cd Nil.4.9. [7

4>.  [jpitd f prfkbjod 4:, ods icsird dlfrd uod iopurjzd hfopfstd mj ïcmif.   [7 

4 MIFMF XJOIHFCMZ]F[ 41.  Mjshrjvd hfo suds pdbdvrds ds hfcmiìújs jstdkjbjhimds pjbds situdìújs mj

pfbdrizdìèf mirjhtd j rjvjrsd jo uo mifmf mj gucìèf p-c, hfof dnjhtdo d hfrrjctj rjsubtdctj. [7 Cd pfbdrizdìèf mirj mirjtd td dhfctjhj hfo d dssfh dssfhidìèf idìèf mf tipf p, pfsitivf j mf tipf c. cjldtivf, nfr jstdkjbjhimd, d dpbihdìèf mj uo pftjchidb mj pfbdrizdìèf mirjtd nfrìd jbjtrújs mf odtjridb mf tipf c j fs kurdhfs mf odtjridb mf tipf p d rjhfokicdrjo-sj hfo iújs odis prøxiofs, pjroiticmf quj d hfrrjctj pdssj pjbf hirhuitf.

 

  Cd pfbdrizdìèf rjvjrsd df hfcjhtdrofs f tjroicdb pfsitivf é hfcjhtdmf df odtjridb mf tipf c j f tjroicdb cjldtivf é bildmf df odtjridb mf tipf p, f cuojrf mj iújs pfsitivfs cèf hfokicdmfs cd rjlièf mj mjpbjìèf mf odtjridb mf tipf c duojctdrä, f jnjitf é pfrtdctf uo dbdrldojctf md rjlièf mj mjpbjìèf jstdkjbjhjrä uod kdrrjird odifr, iopfssikibitdcmf d pdssdljo md hfrrjctj jbjtrihd.   49.  Mjshrjvj f quj vfhç sdkj mfs jstdmfs mj pfbdrizdìèf mirjhtd j rjvjrsd mf mifmf

mj gucìèf p-c. Istf é, tjctj bjokrdr  ‘  sj  sj mj qudb pftjchidb ( pfsitivf fu cjldtivf) é dpbihdmf d uo mjtjroicdmf tjroicdb . [7 É f pftjchidb pfsitivf, dpbihdmf pdrd rjhjkjr fs rjsubtdmfs dpbihdmfs cds hfrrjctjs, istf é, pjroiticmf fu kbfqujdcmf d hfrrjctj. ;5.  Zsdcmf d Jq.(4.=). Mjtjroicj d hfrrjctj mj mifmf d ;5·H pdrd uo mifmf mj

sibïhif hfo Is ? :5 cD j uod pfbdrizdìèf mirjhtd dpbihdmd mj 5,> ^ . [7 ;4.  [jpitd f prfkbjod ;5 pdrd ]? 455·H ( pfctf mj jkubiìèf md älud). Dssuod quj

I, duojctfu pdrd :,5 uD. ;;.  (d) Zsdcmf d Jq.(4.=), mjtjroicj d hfrrjctj mj mifmf d ;5·H pdrd uo mifmf mj

sibïhif hfo Is ? 5,4 uD jo pftjchidb mj pfbdrizdìèf rjvjrsd mj  ‘  45  45 ^. (k) F rjsubtdmf é jspjrdmf pfrquç6 ;8. (d) ]rdhj d nucìèf y? jx , hfo x mj 5 d :. (k) Tudb é f vdbfr mj y? jx , jo x?f 6 (h)  Kdsjdmf cfs rjsubtdmfs md bjtrd (k), pf pfrr quj f ndhtfr - 4 é iopfrtdctj cd

Jq.(4.=)6 Cd rjlièf mj pfbdrizdìèf rjvjrsd, d hfrrjctj mj sdturdìèf mj uo mifmf mj sibïhif lird jo tfrcf mj 5,4 uD ( ;5·H). Mjtjroicj f sju vdbfr dprfxiodmf sj d tjopjrdturd nfr duojctdmd pdrd =5·H.

;=. 

Hfopdrj ds hdrdhtjrïstihds mj uo mifmf mj sibéhif j mj ljroëcif, j mjtjroicj qudb vfhç prjnjrj pdrd d odifrid mds dpbihdìújs prätihds. Nfrcjìd

;:. 

mjtdbajs. Hfcsubtj uod bistd mf ndkrihdctj, j hfopdrj ds hdrdhtjrïstihds mj uod mifmf mj ljroëcif j mj sibïhif j quj dprjsjctdo jspjhinihdìújs sjojbadctjs. [7 Zo mïfmf mj sibïhif dprjsjctd uod minjrjcìd mj pftjchidb mj mj 5.