US Department of Energy (DOE) yatulutsa posachedwa lipoti lake lachitatu lodalirika pa madalaivala a LED kutengera kuyesa kwa moyo wautali kwanthawi yayitali.Ofufuza ochokera ku US Department of Energy's Solid State Lighting (SSL) akukhulupirira kuti zotsatira zaposachedwa zimatsimikizira kugwira bwino ntchito kwa njira ya Accelerated Pressure Test (AST) pansi pazovuta zosiyanasiyana.Kuphatikiza apo, zotsatira za mayeso ndi zolephera zoyezera zimatha kudziwitsa opanga madalaivala njira zoyenera kuti apititse patsogolo kudalirika.

Monga amadziwika, madalaivala a LED, mongaZida za LED zokha, ndizofunikira kuti kuwala kwabwino kwambiri.Kupanga koyenera kwa dalaivala kumatha kuthetsa flicker ndikupereka kuyatsa kofanana.Ndipo dalaivala ndiyenso gawo lomwe likuyembekezeka kwambiriMagetsi a LEDkapena zowunikira kuti ziwonongeke.Pambuyo pozindikira kufunikira kwa madalaivala, DOE inayamba ntchito yoyesera madalaivala kwa nthawi yaitali mu 2017. Ntchitoyi imaphatikizapo njira imodzi ndi madalaivala amtundu wambiri, omwe angagwiritsidwe ntchito pokonza zipangizo monga matabwa a denga.

Dipatimenti ya Zamagetsi ku US idatulutsa kale malipoti awiri okhudzana ndi kuyesa ndi kupita patsogolo, ndipo tsopano ndi lipoti lachitatu loyesa, lomwe limafotokoza zotsatira zoyesa zinthu zomwe zikuyenda pansi pa AST kwa maola 6000 mpaka 7500.

M'malo mwake, makampaniwa alibe nthawi yochuluka yoyesa ma drive m'malo ogwirira ntchito wamba kwa zaka zambiri.M'malo mwake, US Department of Energy ndi makontrakitala ake a RTI International ayesa kuyendetsa komwe amawatcha kuti malo a 7575 - chinyezi chamkati ndi kutentha zimasungidwa nthawi zonse pa 75 ° C. Mayesowa amaphatikizapo magawo awiri a kuyesa dalaivala, popanda njira.Mapangidwe a siteji imodzi amawononga ndalama zochepa, koma alibe dera losiyana lomwe limatembenuza AC kukhala DC kenako ndikuwongolera zamakono, zomwe zimakhala zosiyana ndi mapangidwe a magawo awiri.

Dipatimenti ya Zamagetsi ku US idanenanso kuti pamayeso omwe adachitika pamayendedwe 11 osiyanasiyana, ma drive onse adayendetsedwa m'malo 7575 kwa maola 1000.Kuyendetsa kukakhala m'chipinda cha chilengedwe, katundu wa LED wolumikizidwa ndi galimotoyo amakhala pansi pa chilengedwe chakunja, kotero kuti chilengedwe cha AST chimangokhudza kuyendetsa.DOE sinayanjanitse nthawi yogwira ntchito pansi pamikhalidwe ya AST ndi nthawi yogwira ntchito m'malo abwinobwino.Gulu loyamba la zida zinalephera pambuyo pa maola 1250 akugwira ntchito, ngakhale zida zina zikugwirabe ntchito.Pambuyo poyesa maola 4800, 64% ya zipangizo zinalephera.Komabe, poganizira malo oyeserera movutirapo, zotsatirazi ndizabwino kwambiri.

Ofufuza apeza kuti zolakwika zambiri zimachitika mu gawo loyamba la dalaivala, makamaka pamagetsi owongolera mphamvu (PFC) ndi ma electromagnetic interference (EMI) kupondereza mabwalo.M'magawo onse awiri a dalaivala, ma MOSFET alinso ndi zolakwika.Kuphatikiza pakutchula madera monga PFC ndi MOSFET omwe amatha kukonza mapangidwe oyendetsa, AST iyi ikuwonetsanso kuti zolakwika zimatha kuneneratu potengera momwe dalaivala amagwirira ntchito.Mwachitsanzo, kuyan'anila mphamvu yamagetsi ndi ma surge current kumatha kuzindikira zolakwika pasadakhale.Kuwonjezeka kwa kung'anima kukuwonetsanso kuti vuto latsala pang'ono kuchitika.

Kwa nthawi yayitali, pulogalamu ya SSL ya DOE yakhala ikuyesa kuyesa ndi kufufuza kofunikira pagawo la SSL, kuphatikiza pa Gateway.