Mene ne transistors na kewaye

Tun da bipolar transistor ne mai classic uku-ma'ana, akwai uku da hanyoyin da suka hada da shi a cikin wani kayan wutan lantarki da na kowa mashiga ruwa da kanti m:

• wani na kowa tushe (Likitan mata) - high ƙarfin lantarki watsa coefficient.
• wani na kowa-emitter (MA) - wani Littafi alama a matsayin halin yanzu da kuma irin ƙarfin lantarki.
• kowa-tara (OC) - Littafi halin yanzu alama.

A kowane daga cikin uku jinsunan da transistor sauya sheka haihuwarka shi amsa daban zuwa shigar da alama saboda canzawa halaye na ta aiki abubuwa dogara ne a kan musamman mafita.

Students kowa tushe ne daya daga uku da hankula jeri kunsawa bipolar transistors. Yawancin lokaci aka yi amfani a matsayin halin yanzu ko ƙarfin lantarki buffer amfilifa. Irin wannan transistors na kewaye halin a cewa emitter nan abubuwa a matsayin wani labari kewaye, an fitarwa siginar da aka dauka daga cikin tara da tushe "na rasa" ya na kowa waya. A irin wannan sanyi ne su ɗauko sharuddan sauyawa haihuwarka a kowa ƙofar amplifiers.

Students sharuddan sauyawa transistors ON daban-daban barga zafin jiki da kuma mita Properties cewa samar da karamin dogara da sigogi (ƙarfin lantarki riba, yanzu, shigar impedance) da yawan zafin jiki na aiki yanayi yanayi. A disadvantages sun hada da wani karamin kewaye R _IN kuma babu halin yanzu karawa.

Students kowa emitter na samar da wani sosai high riba da kuma samar da wani fitarwa inverted sigina, wanda zai iya da fairly manyan bambancin. watsa coefficient a cikin wannan makirci sun fi mayar dogara a kan zafin jiki na nuna bambanci halin yanzu, inda ainihin riba ne da ɗan unpredictable. Wadannan transistors samar high sharuddan sauyawa kewaye _BX R, da coefficient ga halin yanzu da kuma irin ƙarfin lantarki karawa, shigar da alama inverting, saukaka hada. A disadvantages ne matsalolin da alaka da overdrivers - yiwuwar maras wata-wata tabbatacce feedback murdiya faruwa ga kananan sakonni saboda low shigar da tsauri kewayon.

Makirci na kowa haraji (wanda kuma aka sani a Electronics matsayin emitter bin) yana daya daga iri uku transistors na kewaye. Yana da shigar da alama kawota via tushe sarkar, da kuma fitarwa an cire daga resistor a emitter kewaye da transistor. Irin wannan sanyi na amfilifa mataki ne kullum amfani da wani irin ƙarfin lantarki buffer. Ga tushe na transistor hidima a matsayin shigar da kewaye, wanda emitter ne fitarwa, da kuma haraji da aka grounded kowa batu, Saboda haka sunan makirci. Analogs iya zama a matsayin kewaye sharuddan sauyawa FETs da na kowa kanti. A amfani da wannan hanya shi ne fairly high shigar impedance amfilifa mataki da kuma a gwada low fitarwa.

All uku hankula kewaye sauya sheka transistors ana amfani da ko'ina a cikin circuitry, dangane da manufa na na'urar lantarki da kuma yanayi na ta aikace-aikace.