Qhov txawv ntawm Diode thiab Zener Diode

Qhov txawv ntawm Diode thiab Zener Diode
Qhov txawv ntawm Diode thiab Zener Diode

Video: Qhov txawv ntawm Diode thiab Zener Diode

Video: Qhov txawv ntawm Diode thiab Zener Diode
Video: Nkauj mim pw zov kwj ntxas 1/29/2020 2024, Kaum ib hlis
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Diode vs Zener Diode

Diode yog cov khoom siv hluav taws xob semiconductor, uas muaj ob txheej txheej semiconductor. Zener diode yog ib hom tshwj xeeb ntawm diode, uas muaj qee qhov nta uas tsis tuaj yeem pom hauv ib txwm diodes. Cov neeg tsim qauv xaiv lawv raws li qhov yuav tsum tau ua ntawm daim ntawv thov.

Diode

Diode yog cov khoom siv hluav taws xob yooj yim tshaj plaws thiab nws muaj ob txheej txheej semiconductor (ib P-hom thiab ib hom N-hom) txuas rau ib leeg. Yog li, diode yog PN kev sib tshuam. Diode muaj ob lub terminals hu ua anode (p-hom txheej) thiab cathode (n-hom txheej).

Diode tso cai rau tam sim no ntws los ntawm nws, tsuas yog nyob rau hauv ib qho kev taw qhia uas yog anode rau cathode. Qhov kev taw qhia ntawm tam sim no yog cim rau ntawm nws lub cim nrog ib tug xub taub hau. Txij li thaum diode txwv qhov tam sim no mus rau ib qho kev taw qhia xwb, nws tuaj yeem siv los ua rectifier. Tag nrho tus choj rectifier Circuit Court, uas yog ua los ntawm plaub lub diodes tuaj yeem kho qhov hloov tam sim no (AC) mus rau qhov ncaj qha tam sim no (DC).

Lub diode pib ua tus neeg xyuas pib thaum lub zog me me tau siv rau hauv kev coj ntawm anode rau cathode. Qhov kev poob qis no (paub tias yog qhov kev poob qis rau pem hauv ntej) yog ib txwm muaj thaum muaj qhov tam sim no tshwm sim. Qhov voltage no feem ntau yog 0.7V rau ib txwm silicon diodes.

Txawm hais tias, diode tso cai tam sim no ntws los ntawm anode mus rau cathode, yam hloov pauv thaum muaj qhov hluav taws xob loj heev (hu ua qhov hluav taws xob tawg) siv rau hauv kev coj ntawm cathode rau anode (N txog P). Hauv qhov no, diode raug puas tsuaj tas mus li (vim avalanche tawg) thiab dhau los ua tus neeg xyuas pib tso cai rau lub cathode loj rau anode tam sim no.

Zener Diode

Zener diode yog tsim los ntawm kev hloov me ntsis rau ib txwm diode. Raws li tau hais hauv kab lus dhau los, lub diode ib txwm yuav ua qhov loj rov qab tam sim no thiab yuav puas tsuaj tas mus li thaum muaj qhov rov qab loj dua. Zener diode tseem yuav ua qhov rov qab loj tam sim no, tab sis lub cuab yeej yuav tsis puas. Qhov no ua tiav los ntawm kev hloov txoj hauv kev ntawm doping PN kev sib tshuam thiab qhov rov qab voltage no hu ua 'Zener voltage'.

Yog li ntawd, zenor diode tuaj yeem ua tau ob txoj hauv kev. Yog hais tias lub anode rau cathode voltage yog siab tshaj rau pem hauv ntej voltage poob (kwv yees li 0.7V), nws yuav ua nyob rau hauv pem hauv ntej kev taw qhia, thiab nws yuav ua nyob rau hauv lub rov qab kev taw qhia, yog hais tias tus rov qab voltage yog sib npaug zos rau zenor voltage (tej zaum yuav yog ib qho nqi piv txwv: - 12V lossis -70V).

In luv:

Qhov txawv ntawm diode thiab zener diode

1. Diode tuaj yeem ua tam sim no hauv ib qho kev taw qhia, qhov zener diode tso cai rau kev coj mus rau ob qho tib si.

2. Lub diode ib txwm yuav raug puas tsuaj mus tas li rau qhov rov qab loj tam sim no, tab sis zener diode yuav tsis.

3. Tus nqi ntawm doping rau P thiab N semiconductor khaubncaws sab nraud povtseg yog txawv nyob rau hauv ob pab kiag li lawm.

4. Diodes feem ntau siv rau kev kho, qhov zener diodes yog siv rau kev tswj hluav taws xob.

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