Izibani zasemgwaqweni ze-LED ngeke zibonakale zikhanya maduzane

Okwamanje, izinga lekhwalithi lamalambu e-LED emgwaqweni alilingani. Ezindaweni eziningi, izibani zasemgwaqweni ze-LED ngeke zibonakale zikhanya maduzane. Ngemuva kocwaningo lweAmalambu omgwaqo ane-LED Abakhiqizi, imbangela eyinhloko yalesi simo ukuthi ukukhanya komgwaqo we-LED kunokusebenza okungalungile kokukhipha ukushisa. Uma ukusebenza kokukhishwa kokushisa kungalungile, izinga lokushisa langaphakathi lokukhanya kwe-LED lizoba phezulu kakhulu. Lapho izinga lokushisa le-LED likhuphuka, ukumelana kwayo kwe-junction kuncipha, okuholela ekunciphiseni kwe-voltage yokuvula.

Ngaphansi kwezimo ezifanayo ze-voltage, ukunyuka kwezinga lokushisa kwangaphakathi kwesibani se-LED kuzokhuphula i-LED yamanje. Ukwanda kwamanje kubangela ukuthi izinga lokushisa likhuphuke ngokuqhubekayo, okubangela ukuthi umjikelezo omubi ushise i-chip ye-LED. Ngaphezu kwalokho, izinga lokushisa langaphakathi lokukhanya komgwaqo we-LED liphezulu kakhulu, okwenza futhi ukubola kokukhanya kwe-chip ye-LED kuqiniswe, ukuze kuholele entweni ekhanyayo futhi engakhanyi esikhathini esizayo esiseduze. Ngakho-ke siyini isizathu sokusebenza kabi kokushisa kokushisa kokukhanya komgwaqo we-LED?

Okokuqala, ikhwalithi ye-LED street lights ngokwayo.

I-chip ye-LED esetshenzisiwe ine-conductivity ephansi ye-thermal, futhi izinga lokushisa le-LED die alidluliswanga phezulu (ukushisa kwangaphakathi nokubanda). Ngisho noma i-sink yokushisa ingeziwe, ukushisa kwangaphakathi akukwazi ukuchithwa ngokuphelele, bese ukukhanya komgwaqo we-LED akushisi ngaphakathi.

Okwesibili, ukunyuka kwezinga lokushisa okubangelwa ukukhanya kokukhanya komgwaqo we-LED.

Ikhwalithi yamandla okukhanya komgwaqo we-LED ayilungile. Uma i-LED ivuliwe, ukungewona umugqa wokunikezwa kwamandla kanye nokushintsha okubuthakathaka kwamandla kuzobangela ukuthi i-current nge-chip ye-LED ikhule, okuzokwenza izinga lokushisa langaphakathi libe phezulu kakhulu, okuzothinta ukushisa. ukusebenza kokuhlakazeka kwesibani somgwaqo we-LED.

Wonke umuntu udinga ukunaka impilo ende yezibani zomgwaqo ze-LED. Lapho uthenga, zama ukukhetha abakhiqizi bezibani zomgwaqo ezithembekile ze-LED, futhi futhi unake ukugcinwa okuvamile, ukuze uqinisekise ukuzinza kwezibani zomgwaqo ze-LED.