Yuav ua li cas ntsuas tus choj rectifier nrog multimeter?
Rectifier choj yog plaub rectifier diodes (yuav hloov mus rau DC lub zog semiconductor Cheebtsam) raws li tus choj qauv hauv series, series tom qab lub pob ua ke (pob yas), nrog plaub rectifier diodes muaj li ntawm tus choj rectifier, rectifier choj muaj qhov zoo. thiab cov ntsiab lus tsis zoo, uas - ko taw ntawm DC compression tawm ntawm qhov kawg. -Qhov feem ntau txuas nrog lub load lossis tom qab lim, regulator txuas nrog lub load, thiab muab DC lub zog rau lub load.
1, ntsuas ib qho los ntawm ib qho, tseem hu ua ib qho los ntawm ib txoj kev ntsuas
Cov yam ntxwv ntawm diode yuav tsum meej (loj rov qab tsis kam, pem hauv ntej kuj yog me me), diode zoo los yog phem, nrog ib tug multimeter tuaj yeem ntsuas. Nyob rau hauv ib daim ntawv los txheeb xyuas diodes thiab diodes zoo thiab phem ntsuas nyob rau hauv lub kawg ntawm tawm yav tas los qhia, tsis to taub yuav mus saib, ntau to taub, sab no yuav tsis rov ua dua yav tas los qhia.
Kev ntsuas kev tiv thaiv ntau yam nyob rau hauv cov xwm txheej ib txwm tshaj li qhov
Kev ntsuas cov ntaub ntawv muab los ntawm tus nqi tsis kam thiab txiav txim qhov ntau, koj tuaj yeem siv cov ntaub ntawv ntsuas rau kev sib piv.
Cov txheej txheem saum toj no ntawm kev sim rectifier choj pawg cov ncauj lus kom ntxaws thiab txhim khu kev qha, tab sis cov txheej txheem xeem yog ntau cumbersome. Ntawm no yog lwm txoj kev yooj yim, koj tsuas yog yuav tsum ntsuas peb zaug kom txiav txim siab tus choj pawg zoo lossis phem.
Ntsuas lub rectifier choj pins nrog ib tug multimeter
Hauv cov ntawv nyeem ntawm cov qauv sab hauv ntawm daim duab 1 qhia ntawm multimeter teeb R × 10k cov ntaub ntawv. Kev ntsuas ntawm AC lub hwj chim tawm tswv yim ② taw, ④ taw ntawm pem hauv ntej thiab rov qab tsis kam, los ntawm cov qauv Circuit Court tuaj yeem pom, tsis hais seb ob lub cwj mem txuas nrog kev ntsuas li cas, rau kev ua tau zoo ntawm tus choj, nws ② ko taw, ④ ko taw nruab nrab ntawm lub pem hauv ntej thiab rov qab kuj yuav tsum loj heev, vim hais tias txhua qhov kev ntsuas muaj ib txwm ib tug diode yog thim rov qab siv lub xeev; Yog tias qhov ntsuas rau pem hauv ntej thiab thim rov qab yog me me (piv txwv li, tsuas yog ob peb txhiab ounces), nws qhia tau hais tias pawg petite lossis ntau dua diode tawg lossis qhov tshwm sim, tsis tuaj yeem siv lub diode, thiab tus choj tsis tuaj yeem siv. Qhov tshwm sim tshwm sim, tsis tuaj yeem siv tau lawm.
Kev piav qhia ua haujlwm ntawm txhua feem ntawm multimeter
Ntawm chav kawm, kev cia siab rau hom hom no yuav tsis tuaj yeem txiav txim siab tag nrho cov raj twg puas nyob rau hauv cov choj pawg. Yog li ntawd, tseem yuav tsum tau txuas ntxiv ntsuas cov zis DC ① ko taw, ③ ko taw nruab nrab ntawm kev tiv thaiv pem hauv ntej, txoj kev yog: multimeter teeb R × 1k cov ntaub ntawv, tus cwj mem liab txuas nrog ③ ko taw. Tus cwj mem dub rau ① ko taw, yog tias ntsuas rau pem hauv ntej tsis kam yog me ntsis loj dua li tib lub diode rau pem hauv ntej tsis kam, qhia tias tus choj quasi-ib txwm, yog tias qhov kev tiv thaiv pem hauv ntej yog ze rau tib lub diode rau pem hauv ntej tsis kam, qhia tias tus choj weir hauv ib qho los yog ob (ob lub pob tw) diode tawg; Yog tias qhov kev tiv thaiv pem hauv ntej loj dua li ob lub diode rau pem hauv ntej kuj loj dua li qhov diode rau pem hauv ntej tsis kam ntawm tus choj quasi-diode rau pem hauv ntej tsis kam lossis qhib-circuit tsis ua haujlwm.
Los ntawm tus choj quasi-pin qhov chaw ntawm kev pom (tus pin txoj hauj lwm hauv qab no yog daim duab 1 sab hauv ntawm tus pin txoj hauj lwm cim)
Cov qauv sab hauv tuaj yeem pom, qhov chaw ntawm tus pin tau raug cim rau ntawm tus choj pawg ntawm lub plhaub, saib tuaj yeem txiav txim siab, tab sis qee qhov ntawm cov choj pawg npav tsis meej, lossis kos cim muaj qhov yuam kev, koj tsis tuaj yeem dig muag. nkag mus rau hauv Circuit Court, txwv tsis pub nws yuav hlawv cov choj pawg thiab lwm yam khoom, piv rau qhov yuav tsum tau siv lub multimeter los txiav txim qhov tseeb qhov chaw ntawm tus choj pawg pins.
Rectifier choj tus pin muaj nuj nqi thiab cim cim (Daim duab tus pin txoj hauj lwm ≠ ntawv tus pin txoj hauj lwm)
Txoj kev txiav txim siab yog: thawj zaug pom qhov zoo DC tso zis (piv txwv li, ③ ko taw) kawg, piv txwv tias yog ko taw rau ③ ko taw. Multimeter teeb R × 1K cov ntaub ntawv, tus cwj mem liab raws li ③ ko taw, nrog tus cwj mem dub tau txuas ① ko taw, ② ko taw, ④ ko taw, yog tias peb zaug muaj qhov tsis sib haum me me (ntawm-tsis kam) yog qhov kev xav yog yog lawm, uas yog, ③ ko taw rau tus choj pawg ntawm qhov zoo DC tso zis, yog tias peb qhov kev ntsuam xyuas, ib ko taw hla los yog tsis dhau, nws xav tias tsis ncaj ncees lawm Na, yuav tsum tau xav tias ② ko taw rov sim dua kom txog thaum koj nrhiav qhov tiag ② ko taw.
Nrhiav ③ ko taw, tus so ntawm ko taw yuav zoo rau kev txiav txim siab: tseem siv tus cwj mem liab los txuas rau ③ ko taw, nrog tus cwj mem dub los sim lwm peb ko taw ntawm qhov zoo tiv thaiv, uas muaj qhov loj tshaj plaws tiv thaiv tus nqi ntawm ko taw. luam tawm rau qhov tsis zoo kawg ntawm DC voltage tso zis, qhov seem ob txhais taw rau AC input, tsis muaj qhov zoo lossis qhov tsis zoo polarity. (Lub pointer multimeter siv ntawm no, yog tias koj siv digital multimeter, koj tuaj yeem siv cov ntawv xeem diode, tab sis nco ntsoov tias digital multimeter liab cwj mem txuas nrog lub davhlau ya nyob twg zoo ntawm lub roj teeb sab hauv, yog li tus cwj mem xaj yog qhov sib txawv ntawm qhov txoj kev saum toj no.)
