Li-chip tsa IC tsa JXSQ tse ncha le tsa mantlha REG BUCK ADJ 3.5A 8SOPWR TPS54340DDAR lisebelisoa tsa elektroniki

Hobaneng ha li-chips (kapa tlhahiso ea elektroniki) li sebelisa li-semiconductors ho fapana le li-conductors?

Li-semiconductors li fetohile karolo ea bohlokoa ea bophelo 'me tšebeliso ea tsona e fumaneha hohle.Ntle le li-semiconductors, ho ne ho ke ke ha e-ba le seea-le-moea, ha ho lik'homphieutha, ha ho na liselefouno, ha ho na lithelevishene, ha ho mechine e hlatsoang, ha ho lipapali tsa video, 'me ka sebele ha ho na khatiso ea 3D, ho khanna ka boithaopo, meriana e bohlale, kapa photovoltaics.Tsoelo-pele e potlakileng ea Marang-rang ea Lintho le eona e entse hore li-semiconductors li fetohe le ho feta.

Ho sa tsotellehe ho itšetleha ka theknoloji ea vacuum tube (li-tubes tsa vacuum, tse tsejoang hape e le li-electron tubes, li ile tsa nkeloa sebaka ke li-semiconductors ka mabaka a theko e phahameng, ho se tšoarelle nako e telele, boholo le bokhoni bo tlaase, ka li-electrode le likhoele tse ka hare ho tse tsamaisang), lisebelisoa tse ngata tsa elektronike li ne li le teng. bōpiloe.Ha re hetla morao mehleng ea phaephe ea vacuum, lithelevishene, likeramafono le liea-le-moea kaofela li ne li e-na le li-circuits tsa vacuum tube tse neng li hloka metsotso e ’maloa ea ho futhumala nako le nako ha li ne li sebelisoa ’me li sa tsitsa ka ho fetisisa.Lilemong tse 60 tse fetileng, theknoloji ea semiconductor e lumelletse lisebelisoa hore li potlake, li be nyane, li be tse tsitsitseng haholoanyane.

Joale ke hobane'ng ha u sebelisa li-semiconductors ho etsa lisebelisoa tsee tsa elektroniki, ho fapana le li-conductors?

Li-semiconductors ke eng?Semiconductor ke thepa e tsamaisang motlakase pakeng tsa conductor (hangata tšepe) le insulator (haholo-holo ke ceramic).Li-semiconductors e ka ba likarolo tse hloekileng (silicon kapa germanium) kapa metsoako (gallium arsenide kapa cadmium selenide).Nakong ea doping, litšila tse nyenyane li kenngoa ho semiconductor e hloekileng, e leng se hlahisang phetoho e kholo ea motlakase oa thepa.

Lisebelisoa tse ngata tsa elektroniki li entsoe ho ipapisitse le li-transistors, tseo le tsona li etsang mesebetsi e kang amplification, oscillator le arithmetic, tseo kaofela li etsoang ke li-semiconductors.

Joale ke hobane'ng ha li-semiconductors eseng li-conductor?

Hobane li-semiconductors li na le mefuta e mengata e fapaneng ea li-conductivity, li-conductor li na le li-conductivity tse phahameng feela, tse sa hlokeng kamehla bophelong ba letsatsi le letsatsi.Ka li-semiconductors le doping e nepahetseng, conductivity e ka fetoloa ho latela litlhoko.Ka nako e ts'oanang, ho ke ke ha khoneha ho etsa li-conductor tsa dope, tlhaho e sa laoleheng e etsang hore ho se ke ha khoneha ho finyella se hlokahalang (nahana hore li-conductor li na le palo e kholo ea bajari ba litefello le doping e na le phello e fokolang).

Ho nka hore lintlha tsa A le B ka potoloho li kopantsoe ke mokhanni, ho tla ba le motlakase pakeng tsa bona 'me hona joale ho tla phalla pakeng tsa lintlha tse peli;ha ho na mokhoa oa ho laola ho phalla ha hona joale mona.Ka lehlakoreng le leng, haeba lintlha tsa A le B li kopantsoe ke insulator, hona joale e ke ke ea phalla 'me ho na le ho fokolang ho ka etsoang ho lumella hona joale ho phalla (ntle le haeba motlakase o eketseha ho ea boemong bo ke keng ba lekanngoa).

Leha ho le joalo, haeba transistor e sebelisoa pakeng tsa lintlha A le B, e fana ka mokhoa o matla oa ho laola hona joale.Transistor e lutse pakeng tsa lintlha A le B, e eketsa ntlha e ncha ea C e le hore ho sebelisa phapang ea motlakase pakeng tsa lintlha tsa C le B ho tla etsa hore hona joale ho qale ho phalla pakeng tsa A le B. Tsena li ka etsoa ka matla a tlaase haholo (ka tlase ho 5 volts ) le maqhubu a tlaase (tšebeliso e tlaase ea matla).Ho ke ke ha khoneha ho sebelisa li-conductor kapa li-insulators feela.Hobane li-conductor li tla lula li tsamaisa, li-insulator ha li na ho tsamaisa 'me ke li-semiconductors feela tse fihlelang ho bula le ho koala.

Ntle le ho nahana ka libapali tse feteletseng (ba bang ba ka re khetha lenyane la nkoe), batho ba bangata ba ka khetha katse.Bakeng sa libapali tse feteletseng, na u ka khetha nkoe e kholo?Lebaka le totobetseng ke: ha e laolehe ebile e mabifi.E tšoana haholo le conductor le semiconductor.

Nkoe = mokhanni (ha ho na taolo holim'a conductivity)

Katse = semiconductor (conductivity e ka laoloa ke doping)

Lefatše la saense le tsitsitse mme theknoloji leha e le efe e sa laoleheng e ke ke ea tšoarella.