Dab tsi yog qhov zoo thiab qhov tsis zoo terminals ntawm Zener diode?

1, Basic qauv ntawm Zener diode
Zener diodes feem ntau yog tsim los ntawm P-hom thiab N-hom semiconductor cov ntaub ntawv, tab sis tsis zoo li zoo tib yam PN junction diodes, Zener diodes muaj ntau txoj hauv kev. Nws cov ntsiab lus tseem ceeb yog ib qho tshwj xeeb PN hlws ris, nyob rau hauv uas kev sib cuag ntawm hlau thiab semiconductor cov ntaub ntawv tshwj xeeb hluav taws xob thiab kho qhov muag khoom. Hauv Zener diode, lub davhlau ya nyob twg hlau feem ntau txuas nrog ib kawg ntawm P-hom semiconductor, thaum lwm qhov kawg ntawm cov semiconductor txuas nrog rau qhov tsis zoo electrode. Cov qauv no ua rau Zener diodes tuaj yeem pom cov yam ntxwv sib txawv ntawm cov hluav taws xob nyob rau hauv pem hauv ntej thiab rov qab voltages.
2, Kev txhais ntawm qhov zoo thiab tsis zoo electrodes
Hauv Zener diodes, cov ntsiab lus ntawm qhov zoo thiab qhov tsis zoo yog txawv ntawm cov diodes zoo tib yam. Raws li lub hauv paus ntsiab lus ntawm kev ua haujlwm ntawm Zener diode, thaum lub zog hluav taws xob xa mus rau lub cuab yeej, cov hlau davhlau ya nyob twg thiab cov khoom siv hluav taws xob yog nyob rau hauv ib qho kev coj ua. Lub sijhawm no, cov hlau kawg txuas nrog rau ib qho kawg ntawm P-hom semiconductor thiab yog li suav tias yog qhov zoo electrode. Ua ke, lwm qhov kawg ntawm lub semiconductor txuas nrog lub davhlau ya nyob twg tsis zoo, uas yog lub davhlau ya nyob twg tsis zoo ntawm Zener diode.
Nws yuav tsum raug sau tseg tias Zener diodes feem ntau ua haujlwm nyob rau hauv lub xeev rov qab tawg. Qhov no txhais tau hais tias hauv kev siv tswv yim, kev sib txuas zoo thiab tsis zoo ntawm Zener diodes tej zaum yuav txawv ntawm cov pa diodes. Nyob rau hauv qhov kev tsis ncaj ncees rov qab, lub davhlau ya nyob twg zoo ntawm Zener diode txuas nrog qhov tsis zoo (lossis hauv av) ntawm lub voj voog, thaum lub davhlau ya nyob twg tsis zoo txuas nrog lub davhlau ya nyob twg zoo ntawm lub circuit. Txoj kev sib txuas no ua rau Zener diode pib ua thaum qhov hluav taws xob thim rov qab tshaj nws qhov hluav taws xob tawg, yog li stabilizing cov zis hluav taws xob.
3, Kev txheeb xyuas txoj kev zoo thiab tsis zoo electrodes
Hauv kev siv tswv yim, txheeb xyuas qhov zoo thiab qhov tsis zoo ntawm Zener diode yog qhov tseem ceeb. Nov yog qee txoj hauv kev uas feem ntau siv txheeb xyuas:
Cov cim cim: Ntau Zener diodes muaj cov cim meej ntawm qhov pom los qhia qhov zoo thiab qhov tsis zoo. Piv txwv li, qhov tsis zoo electrode feem ntau yog luam tawm nrog lub nplhaib dub lossis nyiaj, thaum lub electrode zoo tsis tau sau npe. Tsis tas li ntawd, qhov zoo kawg ntawm cov hlau encapsulated Zener diode lub cev feem ntau yog tiaj tus, thaum qhov kawg tsis zoo yog ib nrab voj voog.
Xim cim: Rau cov yas kaw lub cev diode nrog cov cim xim, ib kawg feem ntau tsis zoo thiab lwm qhov kawg yog qhov zoo. Cov xim no feem ntau ua raws li cov chaw tsim khoom lub logo, yog li nws yog ib qho tseem ceeb uas yuav tsum tau ua tib zoo nyeem cov khoom phau ntawv ua ntej siv.
Kev kuaj Multimeter: Rau Zener diodes yam tsis muaj qhov pom lossis xim xim, lub tshuab multimeter tuaj yeem siv los kuaj. Tig lub multimeter mus rau txoj hauj lwm ntawm diode ntsuas, thiab tom qab ntawd muab ob tus cwj mem rau txhua qhov kawg ntawm diode. Yog tias lub buzzer tau qhib, qhov kawg ntawm tus cwj mem liab yog qhov zoo thiab qhov kawg ntawm tus cwj mem dub yog qhov tsis zoo.
4, Daim ntawv thov ntawm qhov zoo thiab tsis zoo electrodes hauv circuits
Daim ntawv thov ntawm qhov zoo thiab qhov tsis zoo ntawm Zener diodes hauv circuits yog qhov tseem ceeb hauv cov hauv qab no:
Voltage regulator circuit: Ib qho ntawm cov kev siv feem ntau siv ntawm Zener diodes yog raws li cov khoom siv hluav taws xob. Nyob rau hauv lub voltage regulator Circuit Court, ib tug Zener diode yog siv nyob rau hauv series nrog ib tug tam sim no limiting resistor. Thaum lub zog hluav taws xob hloov pauv hloov pauv, Zener diode tuaj yeem tswj hwm qhov kev ruaj ntseg ntawm cov zis hluav taws xob. Lub sijhawm no, lub davhlau ya nyob twg zoo ntawm Zener diode txuas nrog lub davhlau ya nyob twg tsis zoo (lossis hauv av) ntawm lub voj voog, thaum lub davhlau ya nyob twg tsis zoo txuas nrog lub davhlau ya nyob twg zoo ntawm lub circuit.
Overvoltage tiv thaiv Circuit Court: Zener diodes kuj tseem siv tau rau hauv kev tiv thaiv overvoltage circuits. Thaum overvoltage tshwm sim hauv Circuit Court, Zener diode ua sai sai, tso tawm qhov hluav taws xob ntau dhau rau hauv av thiab tiv thaiv lwm yam khoom hauv Circuit Court los ntawm kev puas tsuaj. Hauv daim ntawv thov no, qhov zoo thiab qhov tsis zoo sib txuas ntawm Zener diode kuj yog qhov txawv ntawm cov pa diode.
Siv qhov hluav taws xob: Zener diodes tuaj yeem siv los ua qhov siv hluav taws xob siv. Vim tias qhov ruaj khov voltage poob tus yam ntxwv ntawm Zener diodes nyob rau hauv rov qab tawg lub xeev, lawv muaj peev xwm ua hauj lwm raws li ib tug ruaj khov voltage siv qhov chaw. Nyob rau hauv daim ntawv thov no, qhov zoo thiab tsis zoo kev twb kev txuas ntawm Zener diode nyob ntawm seb qhov tshwj xeeb Circuit Court yuav tsum tau.
5, Kev ceev faj
Thaum siv Zener diode, cov ntsiab lus hauv qab no yuav tsum raug sau tseg:
Xaiv tus qauv tsim nyog: Xaiv tus qauv Zener diode uas tsim nyog raws li cov ntawv thov tshwj xeeb thiab cov cai. Cov kev txwv xws li kev tawg hluav taws xob, kev siv hluav taws xob, thiab cov lus teb ceev yuav tsum ua kom tau raws li qhov yuav tsum tau ua ntawm Circuit Court.
Ua tib zoo saib xyuas cov cua kub dissipation: Zener diodes tsim qee lub zog noj thiab cua sov thaum ua haujlwm. Yog li ntawd, thaum tsim thiab txhim kho circuits, yuav tsum tau them nyiaj mloog mus rau lub tshav kub dissipation ntawm Zener diodes kom tsis txhob overheating uas yuav ua rau kev ua tau zoo degradation los yog puas.
Kev ntsuam xyuas tsis tu ncua: Tsis tu ncua ntsuas kev ua haujlwm ntawm Zener diode kom ntseeg tau tias nws txoj haujlwm ruaj khov mus ntev. Yog tias pom kev ua haujlwm tsis zoo lossis puas tsuaj, nws yuav tsum tau hloov tam sim ntawd.

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