JXSQ Zatsopano ndi Zoyambirira za IC tchipisi REG BUCK ADJ 3.5A 8SOPWR TPS54340DDAR zida zamagetsi

Chifukwa chiyani tchipisi (kapena kupanga zamagetsi) zimagwiritsa ntchito ma semiconductor osati ma conductor?

Ma semiconductors akhala gawo lofunikira m'moyo ndipo kugwiritsa ntchito kwawo kuli ponseponse.Popanda ma semiconductors, sipakanakhala wailesi, palibe makompyuta, mafoni a m'manja, opanda ma TV, palibe makina ochapira, palibe masewera a kanema, ndipo ndithudi palibe kusindikiza kwa 3D, kuyendetsa galimoto, mankhwala anzeru, kapena photovoltaics.Kukula mwachangu kwa intaneti ya Zinthu kwapangitsanso ma semiconductors kukhala osinthika kwambiri.

Ngakhale kudalira ukadaulo wa vacuum chubu (machubu a vacuum, omwe amadziwikanso kuti machubu a electron, adasinthidwa ndi ma semiconductors pazifukwa zokwera mtengo, zosakhalitsa, kukula kwake, komanso kuchepa kwachangu, okhala ndi maelekitirodi ndi ulusi mkati mwake omwe ali conductive), zida zambiri zamagetsi zidalipo. adalengedwa.Tikayang'ana m'mbuyo pa masiku a vacuum chubu, ma TV, magalamafoni, ndi mawailesi zonsezo zinali ndi zozungulira za vacuum chubu zomwe zinkafuna mphindi zingapo zotentha nthawi iliyonse pamene zimayatsidwa ndipo zinali zosakhazikika kwambiri.Pazaka 60 zapitazi, ukadaulo wa semiconductor walola zida kukhala zofulumira, zazing'ono, komanso zokhazikika.

Nanga bwanji kugwiritsa ntchito ma semiconductors kupanga zida zamagetsi izi, osati ma conductor?

Kodi ma semiconductors ndi chiyani?Semiconductor ndi chinthu chomwe chimayendetsa magetsi pakati pa kondakitala (nthawi zambiri chitsulo) ndi insulator (makamaka ceramic).Semiconductors akhoza kukhala zinthu zoyera (silicon kapena germanium) kapena mankhwala (gallium arsenide kapena cadmium selenide).Pogwiritsa ntchito doping, zonyansa zazing'ono zimawonjezeredwa ku semiconductor yoyera, zomwe zimapangitsa kuti pakhale kusintha kwakukulu kwa magetsi a zinthuzo.

Zida zambiri zamagetsi zimapangidwa kutengera ma transistors, omwe amagwiranso ntchito monga amplification, oscillators, ndi masamu, zomwe zonse zimachitika ndi ma semiconductors.

Nanga bwanji ma semiconductors osati okonda?

Chifukwa ma semiconductors ali ndi ma conductivity osiyanasiyana, ma conductor amakhala ndi ma conductivity apamwamba kwambiri, omwe safunikira nthawi zonse pamoyo watsiku ndi tsiku.Ndi semiconductors ndi doping yoyenera, madutsidwe amatha kusinthidwa malinga ndi zofunikira.Pa nthawi yomweyo, si zotheka kondakitala dope, chikhalidwe chosalamulirika chimene chimachititsa kuti n'zosatheka kukwaniritsa ndendende zomwe zikufunika (tiyerekeze kuti kondakitala ndi chiwerengero chachikulu cha zonyamulira mlandu ndi doping alibe kwenikweni).

Poganiza kuti mfundo A ndi B mu dera zimagwirizanitsidwa ndi kondakitala, padzakhala voteji pakati pawo ndipo panopa idzayenda pakati pa mfundo ziwiri;palibe njira yoyendetsera kayendetsedwe kake pano.Mosiyana ndi zimenezi, ngati mfundo A ndi B zikugwirizana ndi insulator, zamakono sizidzayenda ndipo palibe zochepa zomwe zingatheke kuti zitheke (pokhapokha ngati magetsi akuwonjezeka kufika pamlingo wosaganizirika).

Komabe, ngati transistor ikugwiritsidwa ntchito pakati pa mfundo A ndi B, imapereka njira yamphamvu yolamulira panopa.Transistor imakhala pakati pa mfundo A ndi B, ndikuwonjezera mfundo yatsopano C kotero kuti kugwiritsa ntchito kusiyana kwa voteji pakati pa mfundo C ndi B kumapangitsa kuti magetsi ayambe kuyenda pakati pa A ndi B. Izi zikhoza kuchitika pamagetsi otsika kwambiri (pansi pa 5 volts). ) ndi mafunde otsika (kugwiritsa ntchito mphamvu zochepa).Sizingatheke kugwiritsa ntchito ma conductors okha kapena ma insulators.Chifukwa ma kondakitala azichita nthawi zonse, ma insulators sangachite ndipo ma semiconductors okha ndi omwe amatsegula ndi kutseka.

Popanda kuganizira za osewera kwambiri (ena anganene kuti sankhani kambuku), anthu ambiri angasankhe mphaka.Kwa osewera kwambiri, mungasankhe nyalugwe wamkulu?Chifukwa chodziwikiratu ndi: chosalamulirika komanso chankhanza.Zimakhala ngati kondakitala ndi semiconductor.

Kambuku = wochititsa (palibe ulamuliro pa conductivity)

Cat = semiconductor (conductivity akhoza kulamulidwa ndi doping)

Dziko la sayansi ndilokhazikika ndipo luso lililonse lomwe silingathe kulamulirika silidzatha.