Cov tam sim no-voltage yam ntxwv ntawm hluav taws xob

Pib zaj dab neeg yuav tsim nyog nrog Edison. Qhov no inquisitive txiv neej ntawm science experimented nrog nws incandescent teeb, sim mus cuag tshiab heights nyob rau hauv lub hluav taws xob lub teeb, thiab ntawd yees diode teeb. Lub electrons tawm hauv lub cathode vacuo thiab entrained ntawm lub thib ob electrode, sib cais los ntawm ib qhov chaw. Nyob rau wires tam sim no thaum lub sij hawm paub me ntsis, tab sis patented invention pom nws daim ntawv thov nyob rau hauv vim cov hoob kawm. Nws yog ces, thiab xav tau ib tug tam sim no-voltage yam ntxwv. Tiam sis ua ntej tej yam uas ua ntej.

Cov tam sim no-voltage cov yam ntxwv ntawm tej hluav taws xob ntaus ntawv - lub tshuab nqus tsev, raws li zoo raws li semiconductor thiab - yuav pab kom to taub yuav ua li cas coj thaum koj tig mus rau ntawm ntaus ntawv nyob rau hauv ib tug hluav taws xob Circuit Court. Nyob rau hauv qhov tseeb, nws yog ib lub tso zis tam sim no nyob rau ntawm voltage thov kom tus ntaus ntawv. Edison yees tus thawj ntawm lub diode yog tsim los mus txiav tawm tej yam tsis zoo voltage qhov tseem ceeb, tab sis, nruj me ntsis hais lus, txhua yam yuav yog nyob ntawm seb cov kev taw qhia ntawm lub twj paj nruag yog hloov mus rau hauv lub Circuit Court, tab sis ntau ntxiv txog hais tias ib co lwm lub sij hawm, thiaj li tsis mus ris tus nyeem ntawv nrog ruaj nthuav dav.

Yog li, tam sim no-voltage cov yam ntxwv ntawm ib qho zoo tagnrho diode yog ib tug zoo zauv parabola ceg, lub npe hu rau ntau nyob rau hauv lub tsev kawm ntawv cov tshooj lus. Tus tam sim no los ntawm xws li ib tug ntaus ntawv yuav ntws xwb nyob rau hauv ib tug coj. Lawm, ib qho zoo tagnrho txawv los ntawm lub neej tiag tiag, thiab nyob rau hauv kev xyaum muaj yog tseem muaj ib tug cab tam sim no nyob rau ntawm lub tsis zoo voltages, hu ua reflux (to). Nws yog ntau npaum li cas me dua cov kev kawm tam sim no, xa mus rau raws li ncaj qha, tab sis, cuaj kaum, yuav tsum tsis txhob nco qab txog qhov uas tsis yog-ideality tiag seev.

Nqus triode txawv los ntawm lub tus kwv lub xub ntiag ntawm ob electrodes ntawm cov tswj daim phiaj, ib tug damming transversely nruab nrab seem ntawm lub tshuab nqus tsev hwj. Ib tug cathode nrog ib tug tshwj xeeb txheej uas tswj nws sib cais los ntawm qhov chaw electrons, tau txais kev pab raws li ib tug qhov chaw ntawm elementary hais uas coj anode. Lub ndlwg ntawm cov tswj voltage thov mus rau daim phiaj. Cov tam sim no-voltage yam ntxwv ntawm lub tshuab nqus tsev triode teeb yog heev uas zoo sib xws mus rau ib tug diode, tab sis, nrog ib tug loj specification. Nyob rau hauv lub voltage rau lub hauv paus ntawm lub parabola coefficient undergoes ib tug hloov, thiab peb nrhiav tau ib tug tsev neeg ntawm zoo xws li cov daim ntawv kab.

Tsis zoo li diode transistors khiav lag luam ntawm ib tug zoo voltage ntawm lub cathode thiab cov anode. Cov kev kawm functionality yog tiav los ntawm manipulation ntawm daim phiaj voltage. Thiab thaum kawg, koj yuav tau ua lub xeem hloov tshiab. Txij li thaum lub cathode muaj ib tug finite muaj peev xwm rau electron emission, nws muaj ib tug yam ntxwv rau txhua saturation cheeb tsam, nyob qhov twg ntxiv nce nyob rau hauv voltage tsis ua rau ib qho kev nce nyob rau hauv tso zis tam sim no.

Dua li ntawm qhov cov xwm sib txawv thiab tej ntsiab cai ntawm cov tam sim no-voltage yam ntxwv ntawm cov transistor yog tsis heev txawv los ntawm lub triode, tab sis lub steepness ntawm lub parabola yog tus loj. Uas yog vim li cas lub teeb Circuit Court rau thiaj yog feem ntau xa mus rau ib tug semiconductor substrate. Qhov kev txiav txim ntawm lub cev ntau lwm yam tshaj li transistors yog me npaum li cas mov voltages. Ntxiv mus, semiconductor pab kiag li lawm yuav tswj tau los ntawm ob leeg zoo thiab tsis zoo voltages, uas muab ib tug ntau dua degree ntawm txoj kev ywj pheej ntawm cov designers thaum tsim circuits.

Rau siab raws li cov kev thov rau cov kev hloov ntawm ready-made kev daws teeb meem thiab pab kiag li lawm muaj lawm invented nrog lub photoelectric nyhuv. Txawm li cas los, yog hais tias tus teeb siv nws txawv teb chaws hom, cov advanced caij puag, rau cuab yog vim li cas, kev khiav hauj lwm nyob rau hauv lub hauv paus ntawm lub sab hauv photoelectric nyhuv. Cov tam sim no-voltage yam ntxwv photoelectric yus nyob rau hauv uas cov qhov tso zis tam sim no tus nqi yog txav, nyob ntawm seb teeb pom kev zoo. Lub teeb siv yog siab dua tus loj dua cov zis tam sim no. Txij li thaum ua hauj lwm phototransistors, photodiodes yog siv raws li qhov rov qab tam sim no ceg. Qhov no yuav pab tsim cov khoom uas muaj peev xwm ntawm tebchaws photons thiab tswj los ntawm lwm lub teeb qhov chaw.