UbuchwephesheElectronics

Uyini pnp-Transistor?

Transistors - a kumadivayisi we-semi umqhubi, lapho iziphetho akukho esingaphansi ezintathu. Ezimweni ezithile, bangakwazi ukuthuthukisa umthamo ukukhiqiza kunyakaza noma ukuguqula i-signal. Kunezindlela eziningi imiklamo ezahlukene lezi amadivaysi, futhi phakathi kwawo - pnp-Transistor.

Faka kusigaba transistors ku material Semiconductor. Yakhiwa Silicon, germanium, njll

Uma Transistor yezindawo ezintathu babe ezimbili p-uhlobo conductivity, ubizwa ngokuthi "Transistor nge conductivity oqondile" noma "ukudluliselwa Transistor pnp". Kuvele apharathasi lapho izifunda ezimbili baye electron conductivity, kubhekiselwa kuye ngokuthi Transistor nge Umqhubi reverse noma ushintsho npn. Usebenza kokubili transistors ziyafana, kodwa umehluko amanga kuphela polarity.

Lapho kufanelekile pnp-Transistor?

Kuye onjani izici emazweni zokuthutha, ingasetshenziswa ngezinhloso eziningi. Njengoba sekuphawuliwe, Transistor isetshenziselwa isizukulwane, uguquko kanye yokukhulisa yezinzwa. Ngenxa yokuthi voltage input noma yamanje washintsha, ukulawula zamanje Kwenziwa kwe-circuit input. izinguquko ezincane nemingcele okokufaka kuholele ngoshintsho ngisho nakakhulu wamanje okukhipha kanye voltage. okhulisa impahla okunjalo isetshenziswa ubuchwepheshe analog (umsakazo, i-TV-analog, ukuxhumana njalo njalo. D.).

Esikhathini sethu, lapho isetshenziswa amasu analog okuguquguqukayo pnp-Transistor. Futhi lapha kungenye mkhakha obaluleke kakhulu - ezobuchwepheshe - cishe wenqaba futhi isebenzisa efundwayo kuphela. Bipolar pnp-Transistor uvele ensimini ngisemncane kakhulu, ngoba ku parlance common okukhulunywe nje Transistor.

Ukusebenza nokuthuthukiswa kwemigomo transistors

Transistors ngokwakhayo ezenziwe ngepulasitiki bese metal ezivalekile. Uma ucabangela izinjongo ezihlukahlukene transistors, lezi amadivaysi Abazinikele bakhethwa ngendlela imingcele ethile. Ngokwesibonelo, uma Transistor ngoba yokukhulisa amaza okusezingeni eliphezulu, kufanele kube imvamisa high isignali okhulisa. Futhi uma Transistor pnp asetshenziswe Umlawuli zamanje, kufanele abe eliphezulu ezisebenza ngalendoda zamanje.

Izinkomba iqukethe izici eziyinhloko we Transistor:

  • Ik - ezisebenza (esiphezulu) ngalendoda zamanje;
  • h21e - inzuzo;
  • Fgr - esiphezulu imvamisa okhulisa;
  • Pk - amandla ngalendoda ukushabalalisa.

phototransistors

Phototransistor - idivayisi nozwelo yokucucuza ukukhanya, okuyinto irradiates ke. I uphawu izindlu ibhokisi we Transistor kwenziwe okunjalo, isibonelo, eyenziwe ngepulasitiki esobala noma ingilazi. Kushisa bhé kule ndawo ngokusebenzisa lingena kumila zone phototransistor. Uma isizinda is zishiswe ke abathwali icala ikhiqizwa. Phototransistor ukuvula lapho icala abathwali bendlulela kwalapho ngalendoda, nokuningi uzobe base ezimboziwe, lamanje ngalendoda kuyoba eningi.

Ngaphandle transistors ungeke ucabange electronics yesimanje. Cishe akukho idivayisi sina ngeke akwenze ngaphandle kwabo. Phakathi neminyaka engu-kwesicelo kanye nokuthuthukiswa transistors zishintshile kakhulu, kodwa isimiso wokusebenza sawo siyafana.

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