ISebe lezaMandla lase-US (i-DOE) lisanda kukhupha ingxelo yesithathu yokuthembeka kubaqhubi be-LED ngokusekelwe kwixesha elide lokuvavanya ubomi.Abaphandi abavela kwiSebe le-US le-Energy's Solid State Lighting (SSL) bakholelwa ukuba iziphumo zamva nje ziqinisekisa ukusebenza kakuhle kwe-Accelerated Pressure Test (AST) indlela phantsi kweemeko ezahlukeneyo ezinzima.Ukongeza, iziphumo zovavanyo kunye nezinto ezilinganisiweyo zokungaphumeleli zinokuzisa abaphuhlisi babaqhubi bezicwangciso ezifanelekileyo zokuphucula ngakumbi ukuthembeka.

Njengoko kwaziwa, abaqhubi be-LED, njengayeAmacandelo e-LED ngokwawo, zibalulekile kukukhanya okukowona mgangatho.Uyilo olufanelekileyo lomqhubi lunokuphelisa i-flicker kwaye lunikeze ukukhanya okufanayo.Kwaye umqhubi ukwalelona candelo linokwenzekaIzibane ze-LEDokanye izibane zokukhanyisa 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 kwiinkqubo zokuvavanya kunye nenkqubela phambili, kwaye ngoku yingxelo yesithathu yovavanyo lwedatha, equka iziphumo zovavanyo lwemveliso esebenza phantsi kweemeko ze-AST kwii-6000 kwiiyure ze-7500.

Ngapha koko, ishishini alinaxesha lingako lokuvavanya iidrive kwiindawo eziqhelekileyo zokusebenza iminyaka emininzi.Ngokuchasene noko, iSebe lezaMandla lase-US kunye nekontraki yalo i-RTI International baye bavavanya ukuqhuba kwinto abayibiza ngokuba yindawo ye-7575 - zombini ukufuma kunye nobushushu obungaphakathi buhlala bugcinwe kwi-75 ° C. Olu vavanyo lubandakanya izigaba ezibini zokuvavanya umqhubi, ngaphandle ijelo.Uyilo lwenqanaba elinye luxabisa kancinci, kodwa luswele isekethe eyahlukileyo eqala ukuguqula i-AC ukuya kwi-DC kwaye ilawule okwangoku, eyodwa kuyilo olunamanqanaba amabini.

ISebe lezaMandla lase-US lichaze ukuba kwiimvavanyo eziqhutywe kwii-drive ezahlukeneyo ze-11, zonke iidrives ziqhutywe kwindawo ye-7575 yeeyure ze-1000.Xa i-drive ibekwe kwigumbi lokusingqongileyo, umthwalo we-LED oqhagamshelwe kwi-drive ubekwe phantsi kweemeko zendalo zangaphandle, ngoko ke indawo ye-AST ichaphazela kuphela ukuqhuba.I-DOE ayizange idibanise ixesha lokusebenza phantsi kweemeko ze-AST kunye nexesha lokusebenza phantsi kweemeko eziqhelekileyo.Ibhetshi yokuqala yezixhobo ayiphumelelanga emva kweeyure ze-1250 zokusebenza, 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 ekuchazeni iindawo ezifana ne-PFC kunye ne-MOSFET enokuphucula uyilo lomqhubi, le AST ikwabonisa ukuba iimpazamo zihlala ziqikelelwa ngokusekelwe ekubekeni iliso ekusebenzeni komqhubi.Umzekelo, ukubekwa esweni kwamandla kunye ne-surge current inokubona iimpazamo kwangethuba.Ukwanda kokudanyaza kukwabonisa ukuba ukungasebenzi kakuhle sele kuza kwenzeka.

Ixesha elide, inkqubo ye-SSL ye-DOE ibiqhuba uvavanyo olubalulekileyo kunye nophando kwintsimi ye-SSL, kubandakanywa kwiSango.