Lub diode yog lub tshuab hluav taws xob ob lub davhlau ya nyob twg uas ua haujlwm tam sim no hauv ib qho kev taw qhia thiab thaiv tam sim no hauv qhov kev coj rov qab. Lub diode tseem tuaj yeem hu ua rectifier, uas hloov AC rau DC. Txij li diodes yog qhov tseem ceeb "ib txoj hauv kev", nws yog ib qho tseem ceeb kom paub txiav txim siab tias qhov kawg yog qhov twg. Feem ntau koj tuaj yeem qhia los ntawm kev saib cov cim ntawm diode, tab sis yog tias lawv tau hnav lossis tsis muaj nyob koj tuaj yeem siv lub ntsuas ntsuas los ntsuas lub diode.
Cov kauj ruam
Txoj Kev 1 ntawm 2: Txheeb Xyuas Cov Cim
Kauj Ruam 1. Nkag siab tias diode ua haujlwm li cas
Lub diode yog tsim los ntawm N-hom semiconductor koom nrog P-hom semiconductor. N-hom semiconductor yog qhov tsis zoo kawg ntawm diode thiab hu ua "cathode". P-hom semiconductor yog qhov kawg ntawm qhov diode, thiab hu ua "anode".
- Yog tias qhov zoo ntawm qhov hluav taws xob tau txuas nrog qhov kawg ntawm qhov diode (anode), thiab sab tsis zoo txuas nrog qhov tsis zoo kawg ntawm diode (cathode), diode yuav ua tam sim no.
- Yog tias lub diode thim rov qab, qhov tam sim no raug thaiv (txog li qhov txwv).
Kauj Ruam 2. Kawm seb lub cim diode schematic txhais li cas
Diodes tau qhia nyob rau hauv kev kos duab los ntawm lub cim (-▷ |-) uas qhia tias yuav tsum teeb tsa lub diode li cas. Cov xub taw qhia ntawm kab ntsug, uas muaj kab txuas ntxiv ntawm nws.
Cov xub qhia qhov zoo ntawm diode, thaum kab ntsug qhia qhov tsis zoo. Koj tuaj yeem xav txog nws raws li qhov zoo ntws mus rau qhov tsis zoo, nrog tus xub qhia qhov taw qhia ntawm qhov ntws
Kauj Ruam 3. Saib rau pawg loj
Yog hais tias lub diode tsis muaj lub cim txheej txheem luam tawm ntawm nws, nrhiav lub nplhaib, qhab, lossis kab ntawv luam tawm ntawm diode. Feem ntau cov diodes yuav muaj cov xim loj loj luam tawm ze rau sab tsis zoo (cathode) ntawm diode. Cov pab pawg yuav mus txhua txoj kev ib puag ncig diode.
Kauj Ruam 4. Txheeb xyuas qhov kawg ntawm LED
Ib qho LED yog lub teeb pom kev tawm, thiab feem ntau koj tuaj yeem qhia sab twg yog qhov zoo los ntawm kev tshuaj xyuas ob txhais ceg. Cov ceg ntev dua yog qhov zoo, tus pin anode.
Yog tias cov pins tau raug txiav, tshuaj xyuas sab nrauv ntawm LED. Tus pin nyob ze rau lub tiaj tiaj yog qhov tsis zoo, tus pin cathode
Txoj Kev 2 ntawm 2: Siv Multimeter
Kauj Ruam 1. Tig lub multimeter mus rau qhov chaw "Diode"
Qhov no feem ntau yog qhia los ntawm lub cim diode schematic (-▷ |-). Hom no yuav tso cai rau multimeter xa qee qhov tam sim no los ntawm diode, ua kom yooj yim rau kev sim.
Koj tseem tuaj yeem sim cov diode yam tsis muaj teeb tsa Diode. Teem lub ntsuas ntsuas rau qhov ua haujlwm tsis kam (Ω)
Kauj Ruam 2. Txuas lub multimeter mus rau diode
Txuas qhov ua tau zoo mus rau ib qho kawg ntawm diode, thiab qhov tsis zoo xaus rau lwm qhov. Koj yuav tsum pom kev nyeem ntawv ntawm lub ntsuas 'meter'.
- Yog tias koj lub ntsuas cua muaj hom Diode, koj yuav pom qhov hluav taws xob tso tawm ntawm lub ntsuas yog tias lub ntsuas ntsuas tau txuas nrog zoo-rau-zoo thiab tsis zoo-rau-tsis zoo. Yog tias nws txoj kev tsis raug, tsis muaj dab tsi yuav tshwm.
- Yog tias koj ntsuas tsis muaj hom Diode, koj yuav pom kev tiv taus qis heev yog tias lub ntsuas tau txuas nrog zoo-rau-zoo thiab tsis zoo-rau-tsis zoo. Yog tias nws yog txoj hauv kev tsis raug, koj yuav pom kev tiv taus siab heev, qee zaum nthuav tawm ua "OL".
Kauj Ruam 3. Kuaj ib qho LED
LED yog lub teeb-emitting diode. Tig lub multimeter rau qhov teeb tsa Diode. Muab cov hmoov txhuas zoo rau ntawm ib tus pin, thiab cov hmoov txhuas tsis zoo rau lwm tus. Yog tias LED teeb, cov hlau lead zoo tau kov tus pin zoo (anode), thiab cov hlau lead tsis zoo yog kov tus pin tsis zoo (cathode). Yog tias nws tsis ua kom pom kev, cov coj tau kov cov pins sib txawv.
