Izikrini zokubonisa ze-LEDube nezimpawu ezinjengokuvikelwa kwemvelo, ukukhanya okuphezulu, ukucaca okuphezulu, kanye nokwethenjwa okuphezulu. Ngokuthuthuka kobuchwepheshe, izikrini zokubonisa eziholwayo zisetshenziswe kabanzi. Ngezansi, sizokwethula izindlela zokuhlola ezisetshenziswa kakhulu zokulungisa izikrini zokubonisa ngogesi ze-LED, ngethemba lokuthi uzosiza wonke umuntu.
Indlela engu-01 yokuthola isifunda esifushane
Setha i-multimeter ku-umjikelezo omfushaneImodi yokutholwa (imvamisa ngomsebenzi we-alamu, uma iyaqhutshwa, izokhipha umsindo we-beep) ukuthola ukuthi ngabe kukhona yini umjikelezo omfushane. Uma kutholakala umjikelezo omfishane, kufanele axazululwe ngokushesha. Umjikelezo omfishane futhi uyiphutha elijwayelekile kakhulu lemodyuli le-LED. Ezinye zitholakala ngokubheka izikhonkwane ze-IC nezikhonkwane ze-PIN. Ukutholwa kwesisu esifushane kufanele kwenziwe lapho umjikelezo uxhaswa amandla ukuze ugweme ukulimaza i-multimeter. Le ndlela isetshenziswa kakhulu, elula futhi esebenza kahle. Ama-90% wamaphutha angatholwa futhi ahlulelwe ngale ndlela.
02 Ukumelana Nendlela Yokutholwa
Setha i-multimeter ebangeni lokumelana, vivinya inani lokumelana nomhlabathi endaweni ethile ebhodini lesekethe elijwayelekile, bese uvivinya ukuthi ngabe ukhona umehluko phakathi kwephuzu elifanayo nenani elijwayelekile lokuphikisa kanye nenani elijwayelekile lokumelana nenani elijwayelekile. Uma kunomehluko, uhla lwenkinga lunqunywa.
Indlela engu-03 Voltage sokutholwa
Setha i-multimeter kuhla lwe-voltage, thola i-ground voltage endaweni ethile kulo mjikelezo osolwayo, qhathanisa noma kufana nenani elijwayelekile, futhi unqume kalula ububanzi benkinga.
I-04 Pressure Drop Indlela Yokutholwa
Setha i-multimeter kwimodi yokutholwa kwe-diode ye-diode, njengoba wonke ama-ICS akhiwa izakhi eziningi eziyisisekelo eziyisisekelo, kuphela ezincane. Ngakho-ke, lapho kunokudlula kwamanje ngokusebenzisa enye yezikhonkwane zayo, kuzoba nokwehla kwamandla kagesi ezihlokweni. Ngokuvamile, ukwehla kwamandla kagesi ezihlotsheni ezifanayo zemodeli efanayo ye-IC kuyafana. Ngokuya ngenani le-Voltage Drop on the Pins, kuyadingeka ukusebenza lapho umjikelezo uxhaswa.
Isikhathi sePosi: Jun-11-2024
