Hauv hluav taws xob hluav taws xob, lub diode yog lub cuab yeej me me uas tso cai rau hluav taws xob tam sim no ntws los ntawm ib qho kev qhia xwb. Nws ua haujlwm los ntawm kev muaj kev tiv thaiv qis hauv ib qho kev coj thiab ua haujlwm siab ntawm lwm qhov. Koj yuav tsum tau kuaj qee lub diode-uas ib txwm ua los ntawm cov khoom siv hluav taws xob (zoo li silicon hauv Pab Pawg IV ntawm cov lus ntu lossis selenium hauv Pab Pawg VI ntawm cov lus sib tham)-kom ntseeg tau tias nws ua haujlwm tau zoo. Koj tuaj yeem tshawb xyuas kev noj qab haus huv ntawm tus qauv diode nrog digital lossis analog multimeter, uas yuav ntsuas hauv ohms (Ω) lossis volts.
Cov kauj ruam
Txoj Kev 1 ntawm 3: Txheeb Nrog Analog Multimeter
Kauj Ruam 1. Kaw lub diode lub hwj chim
Kev ntsuas lub diode thaum nws tseem nyob hauv ib qho Circuit Court yuav tsis tsuas yog pov tawm cov txiaj ntsig, nws kuj tseem txaus ntshai heev. Tshem lub diode tawm ntawm lub Circuit Court lossis tua lub zog qhov hluav taws xob, uas tuaj yeem yog qhov hluav taws xob lossis lub roj teeb.
Kev tshem tawm cov capacitors kom tshem tawm ib qho hluav taws xob ntxiv uas lawv tuav yuav txo koj txoj kev pheej hmoo ntawm kev tawg lossis hluav taws xob
Kauj Ruam 2. Tig lub selector hloov mus rau qhov tsis kam
Qhov no yuav yog kwv yees li 1 KΩ. Teeb lub ntsuas hluav taws xob ntawm qhov tsis kam ua rau qee qhov tam sim no ntws los ntawm yam tsis muaj cov diode ntau dhau.
Qhov hloov pauv xaiv yog lub xov tooj nyob hauv nruab nrab ntawm lub multimeter
Kauj Ruam 3. Muab cov hlau lead liab tso rau ntawm qhov anode thiab cov hlau lead dub ntawm cov cathode
Lub anode yog qhov kawg zoo, thaum lub cathode yog qhov tsis zoo kawg. Tam sim no lub diode tam sim no muaj kev ncaj ncees, txhais tau tias muaj cov dej ntws ntws los ntawm nws.
- Txhua txoj hauv kev yooj yim los qhia qhov kawg yog cathode vs. anode, saib rau cov nyiaj txaij. Qhov ntawd teev cov cathode.
- Cov coj muaj cov kais dej me me ntawm qhov kawg uas koj yuav siv los txuas rau lub diode.
Kauj Ruam 4. Txheeb xyuas qhov nyeem ntawm lub ntsuas ntsuas seb lub diode puas noj qab nyob zoo
Yog tias koj lub diode tau mus rau qhov tsis ncaj ncees, tom qab ntawd lub ntsuas yuav nyeem ntawm 1 Ω txog 100 Ω yog tias nws ua haujlwm zoo. Yog tias lub diode rov qab tsis ncaj ncees, tom qab ntawv nyeem ntawm lub ntsuas yuav tsum tsis muaj qhov tsis kam, uas txhais tau tias diode qhib. Kev tiv thaiv qis dua rau ob hom diode txhais tau tias diode luv thiab xav tau hloov pauv. Hauv ob qho ntawm cov xwm txheej no, koj yuav tsum hloov koj lub diode.
- Yog tias koj tsis pom kev nyeem ntawv txhua qhov, nco ntsoov tias cov hlau lead raug kaw ruaj khov rau ntawm lub diode.
- Txheeb xyuas yog tias koj cov thawj coj ua haujlwm tau zoo los ntawm kev sim lawv ntawm lub roj teeb tshiab. Teem lub multimeter rau hom hluav taws xob thiab muab daim kab xev liab rau qhov kawg zoo thiab cov kab dub rau qhov tsis zoo. Yog tias kev nyeem ntawv tsis phim qhov hluav taws xob ntawm lub roj teeb, koj xav tau cov coj tshiab.
Kauj Ruam 5. Hloov cov hlau lead liab mus rau cov cathode thiab cov hlau lead dub mus rau qhov anode
Tam sim no nws tau thim rov qab, txhais tau tias tsis muaj dej ntws los. Koj yuav tau txais txiaj ntsig zoo tshaj yog tias koj tig lub xov tooj mus rau qhov ua haujlwm siab (kwv yees li 100 KΩ) ua ntej clipping cov coj mus rau hauv lawv txoj haujlwm tshiab.
Kev tiv thaiv siab yog qhov tsim nyog ntawm no vim tias kev rov qab tsis zoo txhais tau tias tso tseg txhua qhov tam sim no (lossis "tiv thaiv" nws) los ntawm kev ntws los ntawm
Kauj Ruam 6. Saib rau kev nyeem ntawv ntawm qhib lub voj (OL, lossis cim cim infinity)
Qhov no qhia txog kev ua haujlwm kom raug. Yog tias nws muab qhov nyeem tsis tau zoo, lub diode puas lawm thiab koj yuav tsum hloov nws.
Hloov lub diode tuaj yeem yooj yim xws li pauv cov roj teeb txheem. Txawm li cas los xij, koj yuav tsum tau ua qee lub teeb ci ntawm qhov kawg kom txuas nws mus rau hauv Circuit Court
Txoj Kev 2 ntawm 3: Siv Hom Diode ntawm Digital Multimeter
Kauj Ruam 1. Txiav lub hwj chim rau hauv Circuit Court
Qhov no tsuas yog ua tiav los ntawm kev tshem tawm lub zog qhov chaw (feem ntau yog lub roj teeb) lossis ua rau lub hauv paus tawg. Tej zaum koj yuav tsum tau tso cov capacitors tshem tawm cov hluav taws xob uas seem, ib yam. Nov yog kev ntsuas kev nyab xeeb uas yuav tiv thaiv hluav taws xob.
Koj tuaj yeem tso cov capacitors sai sai los ntawm kev kov ob qho kawg ntawm lub capacitor (hu ua lub dav hlau) ua ke
Kauj Ruam 2. Tig lub xov tooj mus rau “diode test” hom
Hom no tso cai tsuas yog 2mA tam sim no ntws los ntawm cov coj. Cov qib tam sim no siab txaus los tsim kev nyeem ntawv, tseem tsis siab npaum li cov diode yuav ua tsis tau.
- Nws kuj tseem tuaj yeem sau npe ua "diode check" ntawm koj lub multimeter thiab feem ntau yog qhia los ntawm lub cim diode me me.
- Lub cim diode yuav zoo li daim duab peb sab taw qhia rau kab.
Kauj Ruam 3. Nqa cov hlau lead liab mus rau anode thiab cov hlau lead dub mus rau cathode
Cov hlau lead liab yog qhov zoo thiab cov hlau lead dub yog qhov tsis zoo. Qhov no ua rau tam sim no nyob rau hauv kev taw qhia rau pem hauv ntej.
Lub anode yog qhov zoo thiab cathode tsis zoo. Cov cathode feem ntau yog cim nrog cov kab nyiaj
Kauj Ruam 4. Nrhiav qhov nyeem nruab nrab ntawm 0.5 thiab 0.8 volts
Qhov ntsuas ntsuas no txhais tau tias koj muaj lub diode noj qab nyob zoo. Ib yam dab tsi sab nraud ntawm cov lej no qhia tias koj lub diode tsis ua haujlwm zoo thiab yuav xav tau hloov.
- Yog tias koj tsis pom kev nyeem ntawv ntawm lub multimeter, sim tshem tawm thiab rov txuas tus thawj coj (xyuas kom koj muaj txoj cai xaus txuas nrog).
- Koj lub multimeter kuj tseem yuav muaj roj teeb tsis zoo lossis xav tau cov coj los tshiab. Yog tias lub multimeter tsis tig rau txhua, hloov lub roj teeb. Yog tias cov hlau lead tau tawg lossis yog tias cov yeeb yaj kiab tawm ntawm cov hlau lead, hloov cov hlau lead lossis cov yeeb yaj kiab.
Kauj Ruam 5. Hloov cov hlau lead dub mus rau qhov anode thiab cov liab coj mus rau cathode
Qhov no tso qhov tam sim no rau hauv qhov rov qab uas tsis muaj qhov tam sim no yuav ntws. Kev nyeem ntawv yuav tsum yog OL, uas txhais tau tias qhib Circuit Court.
- Yog tias koj tau txais qhov ntsuas hluav taws xob nyeem hauv txoj haujlwm no, lub diode tsis ua haujlwm zoo. Hloov nws nrog ib qho tshiab.
- Koj tuaj yeem yuav lub diode tshiab ntawm txhua lub khw hluav taws xob zoo li Yuav Qhov Zoo Tshaj, Xov Tooj Cua, lossis txawm tias Amazon.
Txoj Kev 3 ntawm 3: Txheeb Xyuas nrog Ohmmeter Hom ntawm Digital Multimeter
Kauj Ruam 1. Tua lub zog rau lub diode
Nco ntsoov tias tseem tsis muaj qhov hluav taws xob ntxiv. Yog tias koj tsis tua hluav taws, koj yuav ua rau muaj kev tawg lossis ua rau koj tus kheej lossis lub diode nrog hluav taws xob tam sim no. Tsis txhob nyeem ntawv hauv hom kev tiv thaiv thaum lub diode tseem nyob hauv Circuit Court. Nws tuaj yeem pov tawm cov txiaj ntsig.
- Txhawm rau txiav lub zog, tshem tawm lub Circuit Court los ntawm nws lub zog siv, txawm tias yog lub roj teeb lossis lub qhov hluav taws xob.
- Tshem tawm txhua lub tshuab hluav taws xob kom tshem tawm qhov hluav taws xob ntxiv. Qhov no tseem ceeb heev thaum ua haujlwm ntawm txhua qhov haujlwm hluav taws xob kom tsis txhob xaim hluav taws xob rau koj tus kheej.
Kauj Ruam 2. Tig lub xov tooj cua multimeter mus rau "tsis kam" hom
Nws yuav tsum tau qhia los ntawm lub cim ohm ("Ω"). Teem nws ntawm qhov tsis kam tiv thaiv, lossis kwv yees li 1 KΩ.
Qhov kev tiv thaiv qis tso cai rau tam sim no dhau los ntawm diode yooj yim dua
Kauj Ruam 3. Txuas cov hlau lead liab mus rau anode thiab cov hlau lead dub mus rau cathode
Tso qhov kev sojntsuam zoo ntawm qhov zoo anode thiab sojntsuam tsis zoo ntawm qhov tsis zoo cathode ua rau koj diode rau pem hauv ntej-kev ncaj ncees.
Ntawm ntau lub diodes, qhov anode yog daim dub qhov qhov cathode yog cov nyiaj ntsuab
Kauj Ruam 4. Nrhiav kev nyeem ntawv tsawg dua 100 Ω
Qhov no txhais tau tias tam sim no tau ua tiav raug.
- Yog tias tsis muaj kev nyeem pom tshwm, tshuaj xyuas ob zaug tias cov hlau lead tau ruaj khov rau qhov kawg ntawm cov diode.
- Txheeb xyuas tias koj tau txuas nrog qhov ua tau zoo-qee qhov multimeters tau hloov cov xim txhuas (yog li liab tsis zoo thiab rov ua dua).
- Yog tias koj tseem tsis pom nyeem ntawv, sim hloov cov hlau lead lossis roj teeb. Tej zaum lawv yuav tuag.
Kauj Ruam 5. Tshem cov hmoov txhuas zoo mus rau cov cathode thiab cov hmoov txhuas tsis zoo rau anode
Los ntawm kev txuas qhov xaus nrog cov nqi sib txawv, koj tab tom nres lub diode los ntawm kev ua tam sim no (yog tias nws ua haujlwm tau raug, uas yog). Koj lub diode tam sim no nyob rau hauv kev coj rov qab. Teeb nws hauv kev tiv thaiv siab, lossis kwv yees li 100 KΩ.
Kev tiv thaiv siab yuav tiv thaiv tam sim no los ntawm kev ntws los ntawm diode
Kauj Ruam 6. Nrhiav OL ntawm cov zaub
Qhov qhib Circuit Court nyeem (uas tseem txhais tau tias tsis muaj kev tiv thaiv) qhia rau koj tias koj muaj kev noj qab haus huv diode. Yog tias koj tau nyeem ntawm qhov tsis kam, qhov no qhia tau tias koj lub diode tsis ua haujlwm raug vim tias yuav tsum tsis muaj qhov ntws tam sim no nyob rau hauv cov lus qhia no. Hloov koj cov diode nrog ib qho tshiab.
