Kubikwa ukuthi uMnyango Wezamandla wase-United States (DOE) usanda kukhipha umbiko wesithathu wokuthembeka komshayeli we-LED ngokusekelwe ekuhlolweni kokuphila okusheshisiwe kwesikhathi eside. Abacwaningi be-Solid-state lighting (SSL) boMnyango Wezamandla wase-United States bakholelwa ukuthi imiphumela yakamuva iqinisekisile indlela yokuhlola ingcindezi esheshayo (AST), ebonise ukusebenza okuhle ngaphansi kwezimo ezihlukahlukene ezinzima. Ngaphezu kwalokho, imiphumela yokuhlolwa kanye nezici zokwehluleka ezilinganisiwe zingazisa abathuthukisi babashayeli ngamasu afanelekile ukuze kuthuthukiswe ukwethembeka.

Njengoba kwaziwa, abashayeli be-LED, njengezingxenye ze-LED ngokwabo, babalulekile kwikhwalithi yokukhanya efanelekile. Idizayini efanelekile yomshayeli ingaqeda ukucwayiza futhi inikeze ukukhanya okufanayo. Futhi umshayeli ubuye abe ingxenye okungenzeka kakhulu ukuthi izibani ze-LED noma izinto zokukhanyisa zingasebenzi kahle. Ngemva kokubona ukubaluleka kwabashayeli, i-DOE yaqala iphrojekthi yokuhlola abashayeli yesikhathi eside ngo-2017. Le phrojekthi ihlanganisa abashayeli besiteshi esisodwa kanye namashaneli amaningi, angasetshenziselwa ukulungisa izinto ezifana nemigodi ye-ceiling.

UMnyango Wezamandla wase-United States ngaphambilini ukhiphe imibiko emibili mayelana nenqubo yokuhlola nenqubekelaphambili. Manje sekuwumbiko wesithathu wedatha yokuhlola, obandakanya imiphumela yokuhlolwa komkhiqizo yamahora angama-6000-7500 wokusebenza ngaphansi kwezimo ze-AST.

Eqinisweni, imboni ayinaso isikhathi esiningi sokuhlola ukushayela ezindaweni ezijwayelekile zokusebenza iminyaka eminingi. Ngokuphambene nalokho, uMnyango Wezamandla wase-United States kanye nenkontileka yawo i-RTI International baye bahlola i-actuator kulokho abakubiza ngokuthi imvelo ye-7575 - umswakama wangaphakathi kanye nezinga lokushisa kugcinwa ku-75 ° C. Lokhu kuhlolwa kuhilela izigaba ezimbili zokuhlolwa komshayeli, ngaphandle isiteshi. Idizayini yesiteji esisodwa ibiza kancane, kodwa ayinayo isekethe ehlukile eqale iguqule i-AC ibe yi-DC bese ilawula eyamanje, ehlukile ekwakhiweni kwezigaba ezimbili.

UMnyango Wezamandla wase-United States ubike ukuthi ovivinyweni lokushayela okuhlukahlukene okungu-11, zonke izinhlobo zokushayela zihambe amahora ayi-1000 endaweni engama-7575. Uma idrayivu itholakala ekamelweni lezemvelo, umthwalo we-LED oxhunywe ku-drive utholakala ngaphansi kwezimo zemvelo zangaphandle, ngakho-ke imvelo ye-AST ithinta kuphela idrayivu. I-DOE ayizange ihlobanise isikhathi sokusebenza ngaphansi kwezimo ze-AST nesikhathi sokusebenza ngaphansi kwezindawo ezivamile. Iqoqo lokuqala lamadivayisi lihlulekile ngemva kwamahora angu-1250 okusebenza, nakuba amanye amadivaysi asasebenza. Ngemva kokuhlola amahora angu-4800, u-64% wamadivayisi wehlulekile. Noma kunjalo, uma kucatshangelwa isimo sokuhlola esinzima, le miphumela isivele mihle kakhulu.

Abacwaningi bathole ukuthi amaphutha amaningi enzeka esigabeni sokuqala somshayeli, ikakhulukazi ku-power factor correction (PFC) kanye ne-electromagnetic interference (EMI) suppression circuits. Kuzo zombili izigaba zomshayeli, ama-MOSFET nawo anamaphutha. Ngaphezu kokucacisa izindawo ezifana ne-PFC ne-MOSFET ezingathuthukisa idizayini yomshayeli, le AST iphinde ibonise ukuthi amaphutha ngokuvamile angabikezelwa ngokusekelwe ekuqapheni ukusebenza komshayeli. Isibonelo, ukuqapha isici samandla kanye namandla okwandayo kungathola amaphutha kusenesikhathi. Ukwanda kombani futhi kukhombisa ukuthi ukungasebenzi kahle sekuzokwenzeka.

Isikhathi eside, uhlelo lwe-SSL lwe-DOE belwenza ukuhlola nokucwaninga okubalulekile emkhakheni we-SSL, okuhlanganisa nesicelo sokuhlolwa komkhiqizo ngaphansi kwephrojekthi ye-Gateway kanye nokuhlolwa kokusebenza komkhiqizo wezohwebo ngaphansi kwephrojekthi ye-Caliper.