Yuav Ua Li Cas Deduce Polarity of Common Electronics Components: 7 Cov Kauj Ruam

2024 Tus sau: John Day | [email protected]. Kawg hloov kho: 2024-01-30 09:26

Puas tau sim rov siv LED, tsuas yog tsis paub tias sab twg zoo lossis tsis zoo? Tsis txhob ntshai ntxiv lawm! Hauv cov lus qhia no, Kuv yuav muab tswv yim rau koj yuav ua li cas thiaj pom qhov sib txawv ntawm cov khoom siv hluav taws xob ib txwm muaj.

Kauj ruam 1: Hauv paus

Ua ntej koj pib txiav koj tus kheej cov khoom sib txawv, koj yuav tsum paub qee qhov pib. Tej zaum koj paub qhov no twb dhau los lawm, tab sis liab yog ib txwm zoo thiab dub yog ib txwm tsis zoo. tsuas yog lwm yam yooj yim uas koj yuav tsum paub yog tias yog koj cov khoom sib xyaw tshiab, tom qab ntawd qhov zoo ib txwm muaj cov hlau lead ntev dua, thiab sab tsis zoo ib txwm muaj cov hlau lead luv. Tam sim no koj paub qhov pib, peb tuaj yeem txiav tawm lwm yam khoom.

Kauj ruam 2: LEDs

Koj twb paub lawm tias cov hlau lead ntev dua yog qhov zoo thiab cov hlau lead luv dua yog qhov tsis zoo ntawm LEDs tshiab, tab sis yuav ua li cas yog tias koj siv LEDs rov ua dua tshiab? Cov lus teb nyob hauv LED. Yog tias koj saib zoo, muaj ib feem me me hauv cov ntaub ntawv epoxy uas ua rau me me thiab muaj xaim tawm los ntawm nws. Qhov ntawd yog anode, thiab nws nyob ntawm qhov zoo. Ntawm lwm sab, Muaj ib daim loj dua nrog "khob" me me uas xaim nkag mus. Qhov ntawd yog cathode, thiab nws nyob ntawm qhov tsis zoo.

Kauj ruam 3: Resistors

Kev siv cov tshuaj tiv thaiv rov qab yog qhov yooj yim. Txhua yam koj yuav tsum nco ntsoov yog qhov kev tiv thaiv tsis muaj qhov sib txawv! Qhov no txhais tau tias cov resistors tsis muaj qhov tsis zoo lossis qhov zoo.

Kauj ruam 4: Capacitors

Capacitors lom zem heev. Qee qhov tsis muaj qhov sib txawv thaum lwm tus tawg yog tias koj tso lawv mus rau qhov tsis raug … Hom kab hluav taws xob feem ntau yog aluminium electrolytic capacitors (duab 1). Lawv muaj kab txaij dawb nrog tus xub qhia qhov tsis zoo. Lwm hom capacitor yog ceramic capacitor (duab 2 thiab 3). Cov no tsis muaj qhov sib txawv kiag li! Hom kawg ntawm lub capacitor kuv muaj ntawm no yog tantalum electrolytic capacitors. Feem ntau lawv muaj cov cim rau ntawm ib sab uas qhia qhov zoo.

Kauj ruam 5: Roj teeb

Yog tias koj tsis tso lub roj teeb kom raug, koj kev tsim yuav tsis ua haujlwm! Qhov no yog vim li cas peb ib txwm yuav tsum paub qhov sib txawv ntawm cov roj teeb. Ntawm AA, AAA, C, thiab D, ib txwm muaj kev sib tsoo ntawm qhov zoo (duab 1 thiab 2). Txawm hais tias koj lub roj teeb tsis muaj cov cim, koj tseem tuaj yeem qhia sab twg yog qhov twg (Kuv qhia tawm tsam siv roj teeb yam tsis muaj cov casings). Cuaj qhov hluav taws xob sib txawv me ntsis. Lawv feem ntau yog cim, thiab yog tias lawv tsis yog, tom qab ntawv kuv yuav tsis siv lawv. Koj tuaj yeem qhia qhov sib txawv ntawm ob lub dav hlau los ntawm kev txiav txim siab qhov twg ib tus hlau tau muab tais rau ntawm nws tus kheej (duab 3 thiab 4). Qhov ntawd yog lub davhlau ya nyob twg tsis zoo. Npib roj teeb tau yooj yim. Lawv feem ntau muaj cov cim rau sab zoo kos rau saum (duab 5).

Kauj Ruam 6: Lwm Yam

Feem ntau yog qhov tivthaiv yog qhov zoo-tsis nkag siab, tom qab ntawd nws yuav raug cim nrog qhov ntxiv thiab rho tawm. Qhov no muaj tseeb rau tus hais lus, lub cev muaj zog, thiab txhua yam khoom uas koj tuaj yeem tau txais. Ib lo lus ceeb toom: txawm hais tias nws tau cim nrog cov cim zoo thiab tsis zoo, ib txwm saib txoj hauv kev kom raug los siv cov khoom ntawd ua ntej koj siv nws.

Kauj Ruam 7: Tam Sim No Ua Koj Tus Kheej

Kuv vam tias koj pom qhov no muaj txiaj ntsig thiab koj tuaj yeem rov siv koj tus kheej cov khoom siv hluav taws xob! Nco tseg: Yog tias koj ua raws cov lus qhia yuav ua li cas ua ib yam dab tsi thiab cov lus qhia hais tias koj yuav tsum tau muab cov khoom pov tseg pov tseg ib txoj hauv kev, koj yuav tsum zaum ua raws li lawv cov lus qhia!