Yuav Ua Li Cas Ntsuam Xyuas Rectifier nrog Multimeter (Cov Lus Qhia)
Txheem
Lub maus taus, ATV, lossis sab-mounted hluav taws xob muaj peb ntu: lub roj teeb, stator, thiab lub regulator / rectifier. Yog tias koj lub cuab yeej hluav taws xob tsis them nyiaj, ib qho ntawm peb yam no feem ntau yuav raug liam. Tib txoj hauv kev kom paub tias qhov twg yog qhov yuam kev yog sim lawv txhua tus.
Tab sis yuav ua li cas xyuas cov regulator / rectifier? Txhawm rau kuaj cov regulator / rectifier, yuav tsum muaj ib qho digital multimeter nrog diode test hom. Yog tias koj tseem tsis tau muaj, tam sim no yog lub sijhawm zoo tshaj plaws kom tau nws.
Thaum peb ua tiav, peb yuav delve rau hauv yuav ua li cas kuaj lub rectifier nrog multimeter.
Dab tsi yog rectifier?
Lub regulator / rectifier yog cov khoom siv hluav taws xob uas hloov AC lub zog tsim los ntawm lub tshuab hluav taws xob mus rau DC lub zog thiab xa mus rau lub roj teeb. Rectifier seem ntawm regulator / rectifier thaiv yog lub luag hauj lwm rau kev hloov tam sim no los ntawm AC rau DC. Nyob rau tib lub sijhawm, ib feem ntawm cov regulator yog lub luag haujlwm los tswj cov nqi tam sim no rau lub roj teeb kom tsis txhob ua phem rau nws. (1)
Lub regulator / rectifier muaj ib tug series ntawm diodes. Lub diode tso cai rau hluav taws xob tam sim no ntws los ntawm nws hauv ib qho kev taw qhia thaum tsis tso cai rau nws mus rau qhov sib txawv. Txoj kev ntawm hluav taws xob tam sim no los ntawm lub diode yog hu ua bias. Forward bias yog hais txog kev tso cai ntawm cov dej ntws tam sim no, thiab thim rov qab kev tsis ncaj ncees yog hais txog qhov thaiv cov kev taw qhia ntawm cov dej ntws tam sim no. (2)
Yuav ua li cas kuaj lub rectifier nrog multimeter
Xyuas kom tseeb tias lub regulator / rectifier ua haujlwm zoo. Koj yuav tsum sim txhua tus ntawm nws cov diodes kom paub tseeb tias lawv muaj qhov tseeb rau pem hauv ntej thiab thim rov qab. Regulator / rectifier units txawv ntawm ib leeg thiab los ntawm ib lub chaw tsim khoom mus rau lwm tus. Lwm cov regulators / rectifiers nyuaj rau kev sim dua li lwm tus, thiab qee qhov tsis tuaj yeem kuaj.
Lub regulator / rectifier muaj ob qhov kev sib txuas hluav taws xob. Nws feem ntau yog grey XNUMX-prong txuas kom tau txais tam sim no los ntawm stator thiab ib qho kev sib txuas dub XNUMX-prong los muab tam sim no rau lub roj teeb. Qhov zoo yog lub davhlau ya nyob twg sab hauv ntawm kev sib txuas dub bipolar thiab qhov tsis zoo yog sab nraud. Qee cov regulators / rectifiers muaj ib tug dub peb-pin txuas nrog rau hauv av davhlau ya nyob twg nyob rau hauv nruab nrab.
Test 1: Forward Bias (Positive Circuit Diodes)
- Txuas cov coj tsis zoo ntawm multimeter mus rau qhov zoo davhlau ya nyob twg ntawm dub ob-prong connector.
- Tom qab ntawd txuas cov hlau lead zoo ntawm multimeter mus rau txhua qhov ntawm peb lub terminals ntawm grey peb-prong connector ntawm nws tus kheej.
- Lub multimeter yuav tsum qhia tus nqi zoo hauv volts. Qhov no qhia tau hais tias txhua qhov kev sim diode hla hluav taws xob tam sim no (rau pem hauv ntej kev tsis ncaj ncees) thiab yog li ua haujlwm raug.
Test 2: Rov qab bias (zoo Circuit Court diodes)
- Txuas cov hlau lead zoo ntawm multimeter mus rau qhov zoo davhlau ya nyob twg ntawm dub ob-prong connector.
- Tom qab ntawd txuas lub multimeter tus nqi tsis zoo rau txhua qhov ntawm peb lub terminals ntawm grey peb-prong txuas.
- Lub multimeter yuav tsum nyeem "OL", qhia tias txhua lub voj voog qhib (OL stands rau qhib Circuit Court). Qhov no txhais tau hais tias lub diode tiv thaiv hluav taws xob los ntawm kev ntws rov qab (rov qab tsis zoo) thiab ua haujlwm zoo.
Test 3: Forward Bias (tsis zoo Circuit Court Diodes)
- Txuas cov hlau lead zoo ntawm multimeter mus rau qhov tsis zoo cov hlau lead ntawm ob-prong connector dub.
- Tom qab ntawd txuas lub multimeter tus nqi tsis zoo rau txhua qhov ntawm peb lub terminals ntawm grey peb-prong txuas.
- Lub multimeter yuav tsum qhia qhov zoo voltage, qhia tias txhua lub diode hla hluav taws xob los ntawm nws.
- Yog hais tias qhov kev ntsuam xyuas rau pem hauv ntej nyeem qhov voltage, lub diode tau ua tsis tiav thiab koj yuav tsum hloov lub regulator-rectifier tivthaiv.
Test 4: Rov qab tsis zoo (tsis zoo Circuit Court diodes)
- Txuas cov xov hlau tsis zoo ntawm multimeter mus rau qhov tsis zoo ntawm ob-pin dub connector.
- Tom qab ntawd tso ib qho txiaj ntsig zoo rau ntawm multimeter ntawm txhua qhov ntawm peb lub terminals ntawm grey peb-prong txuas.
- Lub multimeter yuav tsum nyeem "OL", qhia tias txhua lub voj voog qhib thiab lub diode thaiv qhov ntws ntawm hluav taws xob rov qab.
Ib Theem Rectifier vs Peb Theem Rectifier
| Ib theem rectifier | 3-theem rectifier |
| Ib theem rectifiers muaj ib theem AC input zog. Cov qauv yog qhov tseem ceeb, lawv tsuas yog siv ib qho, ob lossis plaub lub diodes. | Peb-theem rectifiers lees txais peb-theem AV fais fab raws li cov tswv yim. Tus tsim yuav tsum tau peb los yog rau diodes, ib qho rau txhua theem nrab ntawm lub transformer. |
| Ib-theem ib-theem rectifier converts siv tsuas yog ib theem ntawm lub thib ob winding ntawm lub transformer, thiab cov diodes txuas nrog rau theem nrab winding ntawm ib-theem transformer. Qhov no ua rau muaj kev cuam tshuam loj heev. | Peb-theem rectifiers yog siv los txo qhov ripple yam tsis yog ib-theem rectifiers. Thaum siv cov tshuab loj, peb-theem rectifiers nyiam dua ob-theem rectifiers. |
Ua tib zoo saib qee qhov ntawm peb cov lus hauv qab no.
- Yuav Siv Cen-Tech Digital Multimeter los kuaj qhov voltage
- Yuav ua li cas xyuas lub crankshaft txoj hauj lwm sensor nrog ib tug multimeter
- Yuav ua li cas mus kuaj ib-theem lub cev muaj zog nrog ib tug multimeter
tswv yim pom zoo
(1) generator - https://www.britannica.com/technology/electric-generator
(2) hluav taws xob tam sim no - https://www.britannica.com/science/electric-current
Video txuas
