Ngokweengxelo zeendaba, iSebe lezaMandla lase-US (DOE) lisanda kukhupha ingxelo yalo yesithathu yokuthembeka kwiidrive ze-LED ezisekelwe kuvavanyo lwexesha elide olukhawulezayo lobomi. Abaphandi kwiSebe le-US le-Energy's Solid State Lighting (SSL) bakholelwa ukuba iziphumo zakutshanje ziqinisekisa ukuba indlela yokuHlola i-Accelerated Stress (AST) ibonise ukusebenza kakuhle phantsi kweemeko ezahlukeneyo ezinzima. Ukongeza, iziphumo zovavanyo kunye nezinto ezilinganisiweyo zokungaphumeleli zinokuzisa abaphuhlisi babaqhubi bezicwangciso ezifanelekileyo zokuphucula ngakumbi ukuthembeka.
Njengoko kusaziwa, abaqhubi be-LED, njengamacandelo e-LED ngokwabo, babalulekile kumgangatho wokukhanya ofanelekileyo. Uyilo olufanelekileyo lomqhubi lunokuphelisa ukufiphaza kunye nokubonelela ngokukhanya okufanayo. Kwaye umqhubi ukwalelona candelo linokwenzeka kwizibane ze-LED okanye izibane zokukhanyisa ukuba zingasebenzi kakuhle. Emva kokuqonda ukubaluleka kwabaqhubi, i-DOE yaqala iprojekthi yokuvavanya umqhubi wexesha elide kwi-2017. Le projekthi ibandakanya ishaneli enye kunye nabaqhubi beendlela ezininzi, ezingasetyenziselwa ukulungisa izixhobo ezifana ne-grooves yesilingi.
ISebe lezaMandla lase-US liye lakhupha iingxelo ezimbini malunga nenkqubo yokuvavanya kunye nenkqubela phambili, kwaye ngoku ingxelo yedatha yovavanyo lwesithathu ikhutshwa, ehlanganisa iziphumo zovavanyo lwemveliso esebenza phantsi kweemeko ze-AST kwiiyure ze-6000-7500.
Ngapha koko, ishishini alinalo ixesha elininzi lokuvavanya iidrive kwiindawo eziqhelekileyo zokusebenza iminyaka emininzi. Ngokuchasene noko, iSebe lezaMandla lase-US kunye nekontraki yalo i-RTI International baye bavavanya i-drive kwinto abayibiza ngokuba yindawo ye-7575 - kunye nomswakama wangaphakathi kunye nobushushu obugcinwe ngokuqhubekayo kwi-75 ° C. Olu vavanyo lubandakanya izigaba ezibini zovavanyo lomqhubi, oluzimeleyo ijelo. Uyilo lwenqanaba elinye luxabisa kancinci, kodwa luswele isekethe eyahlukileyo eqala ukuguqula i-AC ukuya kwi-DC kwaye ilawule okwangoku, eyodwa kuyilo lwamanqanaba amabini.

Ingxelo yeSebe lezaMandla e-US ithi kwiimvavanyo eziqhutywe kwii-11 ezahlukeneyo zokuqhuba, zonke iidrives ziqhutywe iiyure ze-1000 kwindawo ye-7575. Xa i-drive ibekwe kwigumbi lokusingqongileyo, umthwalo we-LED oqhagamshelwe kwi-drive uhlala phantsi kweemeko zendalo zangaphandle, ngoko ke i-AST ichaphazela kuphela i-drive. I-DOE ayizange idibanise ixesha lokusebenza phantsi kweemeko ze-AST kwixesha lokuqhuba phantsi kweemeko eziqhelekileyo. Ibhetshi yokuqala yezixhobo ayiphumelelanga emva kokusebenza iiyure ezingama-1250, nangona ezinye izixhobo zisasebenza. Emva kokuvavanywa kweeyure ze-4800, i-64% yezixhobo zahluleka. Nangona kunjalo, ngokuqwalasela imeko enzima yovavanyo, ezi ziphumo sele zilungile kakhulu.
Abaphandi bafumanise ukuba uninzi lweziphoso zenzeka kwinqanaba lokuqala lomqhubi, ngakumbi kulungiso lwamandla (PFC) kunye nokuphazamiseka kwe-electromagnetic interference (EMI) iisekethe zokucinezela. Kuzo zombini izigaba zomqhubi, ii-MOSFETs nazo zineempazamo. Ukongeza ekuboniseni iindawo ezifana ne-PFC kunye ne-MOSFET ezinokuphucula uyilo lwabaqhubi, le AST ikwabonisa ukuba iimpazamo zihlala ziqikelelwa ngokusekelwe ekubekeni iliso ekusebenzeni komqhubi. Umzekelo, ukubekwa esweni kwamandla kunye ne-surge current inokubona iimpazamo kwangethuba. Ukwandiswa kokudanyaza kwakhona kubonisa ukuba ukungasebenzi kakuhle kusondele.
Ixesha elide, inkqubo ye-SSL ye-DOE iqhuba uvavanyo olubalulekileyo kunye nophando kwintsimi ye-SSL, kubandakanywa novavanyo lwemveliso yesicelo phantsi kweprojekthi ye-Gateway kunye novavanyo lwemveliso yorhwebo phantsi kweprojekthi ye-Caliper.