Nechirwere transistor - inokosha chikwata kuti amplifying zviratidzo zvemagetsi

Kukura vose mumhuri uye dzakawanda zvemagetsi uye zvemagetsi rwakaita basa rinokosha zvakadaro semiconductor mano akadai nechirwere transistor.

Nechirwere transistor - zano, une ayo anoumba vaviri interconnected PN Junction, hwakavakirwa semiconductor zvinhu. Izvi mhando transistor ane zviteshi matatu. Amplifying unhu, iro rine nechirwere transistor, akatsanangura pahwaro ruzivo yemwoyo uye kwezvinoshandiswa maplatelet mhosva semiconductor (akabata jekiseni uye dzokubudisa nzira ukuwo), uyewo mitemo yemagetsi.

Nhasi pane mhando mbiri chikuru nedambudziko transistors, izvo dzinounzwa maererano netsika iyo pane alternation kubva kumatunhu akasiyana conductivity zvaimirirwa semiconductor yaishandiswa sample: mhando npn uye pnp. Zvakanakira mumwe mhando pamusoro mumwe hazvigoni kupatsanurwa nokuti musiyano pakati kwemarudzi aya transistors ndiyo chete chii polarity ari kwokunze simba panobva zvakabatana mumwe kana mumwe mudziyo inouraya.

Transistor - nechirwere mudziyo zvinosanganisira chikuru matatu zvinhu: a muteresi, nechigadziko uye emitter. Mumwe nomumwe zvinhu kwakabatana, sezvo mutemo mumwe inouraya.

Nedambudziko transistors kazhinji Classified nesimba nounzenza, vakabviswa nemuteresi. By parameter ichi namano vari rakakamurwa yakaderera-simba transistors (anenge 0.3 W), svikiro (0.3 kuti hafu watt) uye yakakwirira (1.5 watts or). Imwe nhungamiro pamusoro kupatsanura pakati transistors - rwekuita Frequency siyana. In dzakadaro mano kuparadzana musimboti emit yakaderera maitikiro mano (shanu MHz), svikiro maitikiro (5 MHz kusvika 35 MHz), Zvakanaka hf (kubvira 35 MHz kusvika 350 MHz) uye microwave (pamusoro 350MHz) transistors.

Mumwe nechirwere transistor anowana nyora achitevedza zvinoshanda yenyika nemitemo. Kazhinji, zita rokuti rinoumbwa matanhatu kana manomwe vatambi (nhamba kana tsamba). Kupenda vanofanira anoratidza mhando zvokunyama, mhando dzose mudziyo pacharo, uye kakawanda zvechadenga simba mudziyo. Uyewo, Kunyora kunogona kuziva rudzi uye Serial uwandu chigadzirwa kukura. Saka, zita rokuti the transistor - zano pasipoti, iro rinozivisa vose kiyi zvechadenga mudziyo.

Pane zvina zvinokosha modes kushanda ari nechirwere transistor:

• chinoshingaira nzira umo ndima kuzarurwa uye akavharwa pamukova emitter kuti nomuteresi ndima;
• akacheka-kure, umo zvose yezwi (uye emitter uye nomuteresi) akavanzwa uye hapana kuitika akapfuura mune mberi divi;
• saturation - chimiro pakatarisana cutoff panguva iyo kuchinja kuti rakavhurika muteresi uye emitter;
• inversion (inverted muoti) - danho kana nomuteresi mhesano kuzarurwa uye emitter iri misha iri negwara (kwete transmits munhu "yakananga" iyezvino).

Zvichienderana Ndeupi electrodes (zviteshi) ari transistor inofambidzana zvakajairika kuti Cascades ose amplification uye mazano uye goho ano, pane vatatu types inokosha mano dziri mudunhu: munhu nechirwere transistor zvinozivikanwa emitter, nomuteresi kana nechimwe. Zvichienderana hworudzii nokuchinja mano anoshandiswa imwe danho, unogona kushandisa zvazvakanakira akasiyana-siyana transistor.

In mhedziso, tinoona kuti nhasi ari nedambudziko transistors vari zvinowanzoshandiswa zvemagetsi uye analoginen Electronics. mano aya anoshandiswa nenzira dzakasiyana-siyana amplification zvokukura pasina pavo zvaisazova zvinobvira uvhure operative gudzazwi - zano kuti anobvumirwa kusika kuchinja kubva analoginen kune digitaalinen hushande. Saka dambudziko transistor anogona kunzi chimwe chezvinhu dzinokosha semiconductor mano, budiriro nheyo Electronics ano.