Dab tsi yog Zener diode muab nws lub cim?
Dab tsi yog Zener diode muab nws lub cim?

Video: Dab tsi yog Zener diode muab nws lub cim?

Video: Dab tsi yog Zener diode muab nws lub cim?
Video: yog hmoov dab tsi tub huas xyooj 2024, Hlis ntuj nqeg
Anonim

Cov cim ntawm zener diode yog qhia hauv daim duab hauv qab no. Zener diode Nws muaj ob lub terminals: cathode thiab anode. Hauv zener diode , hluav taws xob tam sim no ntws los ntawm ob qho tib si anode mus rau cathode thiab cathode rau anode. Cov cim ntawm zener diode zoo ib yam li qhov qub p-n junction diode , tab sis nrog khoov npoo ntawm lub ntsug bar.

Tsis tas li ntawd, dab tsi yog txhais los ntawm Zener diode?

Zaj Lus Qhia. Cov zener diode yog a diode tsim los ua haujlwm hauv cheeb tsam tawg thiab muaj qhov tshwj xeeb tsis zoo voltage hu ua zener hluav taws xob. Nyob rau hauv qhov voltage, lub diode yuav mus rau hauv kev puas tsuaj. Qhov no yog ib yam mob uas tso cai rau tam sim no ntws thaum tuav ib tug tas li voltage nyob rau hauv lub diode.

Tom qab ntawd, lo lus nug yog, dab tsi yog Zener diode nrog daim duab? Cov Zener diode tso cai rau tam sim no ntws mus rau pem hauv ntej ntawm tib yam li qhov zoo tagnrho diode . Nws kuj tso cai rau ntws mus rau hauv qhov kev taw qhia rov qab thaum qhov hluav taws xob siab tshaj ib qho nqi hu ua breakdown voltage. Cov cuab yeej no muaj npe tom qab Zener . Zener nrhiav tau cov cuab yeej hluav taws xob no.

Kuj kom paub, Zener diode yog dab tsi thiab nws ua haujlwm li cas?

A Zener diode yog silicon semiconductor ntaus ntawv uas tso cai rau tam sim no ntws nyob rau hauv ib tug rau pem hauv ntej los yog rov qab kev taw qhia. Cov diode muaj ib tug tshwj xeeb, hnyav doped p-n hlws ris, tsim los coj nyob rau hauv lub rov qab kev taw qhia thaum ib tug tej yam kev cai voltage yog mus txog.

Yuav ua li cas koj txheeb xyuas zener diode?

Tau ib tug multimeter thiab ntsuas lub pem hauv ntej-biased voltage ntawm lub diode los ntawm kev tso qhov zoo los yog liab lead ntawm lub multimeter ntawm lub cov diode anode ntu. Qhov no yog sab ntawm lub zener uas yog unmarked. Muab cov hlau lead tsis zoo los yog dub ntawm lub multimeter ntawm lub cathode los yog cim sab ntawm lub diode.

Pom zoo: