Isethulo sezindlela ezine zokulungisa nokutholwa kwesibonisi se-elekthronikhi se-LED

Indlela yokuqala yokuthola isifunda esifushane:

Setha i-multimeter endaweni yokuthola i-short-circuit (ngokuvamile ngomsebenzi we-alamu, uma ivuliwe, izokhala), hlola ukuthi kukhona yini ukwenzeka kwesiyingi esifushane, bese uyixazulula ngokushesha ngemva kokutholakala.Isenzakalo somjikelezo omfushane futhi siwukwehluleka kwemojula yesibonisi se-LED okuvame kakhulu.Ezinye zingatholakala ngokubheka izikhonkwane ze-IC nezikhonkwane zesihloko.Ukutholwa komjikelezo omfushane kufanele kusetshenziswe lapho isekethe ivaliwe ukuze kugwenywe ukulimala ku-multimeter.Le ndlela iyindlela evame ukusetshenziswa kakhulu, elula futhi ephumelelayo.Amaphesenti angama-90 amaphutha angabonwa futhi ahlulelwe ngale ndlela.

Indlela yesibili yokuthola ukumelana:

Lungisa i-multimeter endaweni yokumelana, hlola inani lokumelana lephuzu elithile lebhodi lesifunda elivamile phansi, bese uhlola iphuzu elifanayo lelinye ibhodi lesifunda elifanayo ukuze uhlole ukuthi inani lokumelana lihlukile yini enanini elivamile lokumelana, uma kwehlukile, kuyanqunywa Ububanzi benkinga.

Indlela yesithathu yokuthola amandla kagesi:

Lungisa i-multimeter kububanzi be-voltage, hlola i-voltage yaphansi endaweni ethile yesekethe okusolakala ukuthi inenkinga, bese uqhathanisa ukuthi iyafana yini nenani elijwayelekile, elinganquma kalula ububanzi benkinga.

Indlela yesine yokuthola ukwehla kwengcindezi:

Lungisa i-multimeter kugiya lokubona ukwehla kwamandla e-diode, ngoba wonke ama-IC akhiwe izingxenye eziningi eziyisisekelo, kodwa anziwe ama-miniaturized, ngakho-ke uma kukhona okwamanje okudlula iphinikhodi, azoba khona kuphini.Ukwehla kwamandla kagesi.Ngokuvamile, ukwehla kwamandla kagesi kuphinikhodi efanayo yohlobo olufanayo lwe-IC kuyefana.Ngokwevelu ye-voltage drop drop on the pin, kufanele isetshenziswe lapho isekethe ivaliwe.


Isikhathi sokuthumela: Jun-07-2021
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