Ukama huri pakati pemhando yemarambi e LED uye magetsi emagetsi
LED ine zvakawanda zvinobatsira zvakadai sekuchengetedzwa kwezvakatipoteredza, hupenyu hurefu, high photoelectric performance (ikozvino chiedza chekushanda chasvika ku130LM / W ~ 140LM / W), kusagadzikana kwekudengenyeka kwenyika, nezvimwewo. Mumakore achangopfuura, kushandiswa kwayo kwakakurumidza kugadzirwa mumaindasitiri akasiyana-siyana. Muchiono, hupenyu hwesevhisi ye LED i100,000 awa, asi mukuita chaiko kwekushandisa, vamwe vagadziri vemwenje we LED havana kunzwisisa kwakakwana kana kusarudzwa kwakashata kwesimba rekutyaira re LED kana kutevedzera mutengo wakaderera. Nekuda kweizvozvo, hupenyu hwezvigadzirwa zvemwenje zve LED hwakapfupikiswa zvakanyanya. Upenyu hwemarambi e LED asina kunaka ari pasi pemaawa 2000 uye kunyange pasi. Mhedzisiro ndeyekuti zvakanakira mwenje we LED hazvigone kuratidzwa mukushandisa.
Nekuda kwehunyanzvi hwekugadziriswa kwe LED uye kugadzira, ikozvino uye voltage maitiro e LED anogadzirwa nevagadziri vakasiyana uye kunyangwe mugadziri mumwechete mubatch rimwe chete rezvigadzirwa ane misiyano mikuru yega yega. Kutora iyo yakajairwa yemhando yepamusoro-simba 1W chena LED semuenzaniso, zvinoenderana neazvino uye voltage kusiyanisa mitemo yeLED, tsananguro pfupi inopiwa. Kazhinji, magetsi ekumberi e1W white light application angangoita 3.0-3.6V, kureva kuti, kana yakanyorwa kuti 1W LED. Kana ikozvino ichiyerera kuburikidza ne350 mA, voltage pamusoro payo inogona kuva 3.1V, kana inogona kuva mamwe maitiro pa 3.2V kana 3.5V. Kuve nechokwadi chehupenyu hwe1WLED, iyo general inogadzira LED inokurudzira kuti fekitori yemwenje ishandise 350mA ikozvino. Kana iyo mberi ikozvino kuburikidza ne LED inosvika 350 mA, kuwedzera kudiki kwemhepo yekumberi kune LED kuchaita kuti iyo LED yekumberi ikozvino ikwire zvakanyanya, zvichiita kuti tembiricha ye LED ikwire zvakatevedzana, nekudaro ichimhanyisa kuora kwe LED. Kupfupisa hupenyu hwe LED uye kunyange kupisa iyo LED kana yakakomba. Nekuda kweiyo vhezheni uye shanduko yazvino ye LED, zvinodikanwa zvakasimba zvinoiswa pamagetsi ekutyaira iyo LED.
LED mutyairi ndiyo kiyi ye LED luminaires. Zvakafanana nemwoyo wemunhu. Kuti ugadzire mwenje wemhando yepamusoro yemwenje ye LED, zvinodikanwa kuti usiye nguva dzose magetsi ekutyaira ma LED.
Mazhinji e-high-power e-LED ekurongedza zvidyarwa zvino anosunga akawanda maLED ega ega akafanana uye munhevedzano kugadzira imwechete 20W, 30W kana 50W kana 100W kana yepamusoro simba LED. Kunyangwe pamberi pepakeji, ivo vanonyatso kusarudzwa uye kufananidzwa, kune akawanda uye mazana ega ega ma LEDs nekuda kwehudiki hwemukati huwandu. Naizvozvo, iwo akaputirwa akakwira-simba LED zvigadzirwa zvichine misiyano mikuru mumagetsi uye zvazvino. Kuenzaniswa ne LED imwe chete (kazhinji chiedza chichena chimwechete, chiedza chegirini, chiedza chebhuruu chinoshandisa magetsi che 2.7-4V, chiedza chimwe chete chitsvuku, chiedza cheyero, chiedza cheorenji chinoshanda che 1.7-2.5V) parameters zvakatosiyana!
Parizvino, zvigadzirwa zvemwenje zve LED (zvakadai semaguardrails, makapu emwenje, marambi ekuratidzira, marambi egadheni, nezvimwewo) zvinogadzirwa nevazhinji vanogadzira zvinoshandisa kushorwa, capacitance uye kuderedzwa kwemagetsi, uyezve kuwedzera Zener diode kuti ipe simba kune maLED. Pane kuremara kukuru. Chekutanga, hazvina basa. Inopedza simba rakawanda pane nhanho-pasi resistor. Inogona kutopfuura simba rinopedzwa ne LED, uye haigone kupa yakakwira-ikozvino drive. Kana iyo yazvino yakakura, simba rinopedzwa pane nhanho-pasi resistor raizove rakakura, iyo LED ikozvino haigone kuvimbiswa kudarika yayo yakajairika kushanda zvinodiwa. Paunenge uchigadzira chigadzirwa, iyo voltage pa LED inoshandiswa kutyaira magetsi, iyo iri pamutengo wekupenya kwe LED. Iyo LED inofambiswa nekupikisa uye capacitance nhanho-pasi modhi, uye kupenya kwe LED hakugone kudzikamiswa. Kana magetsi emagetsi ari pasi, kupenya kwe LED kunosviba, uye kana magetsi emagetsi akakwirira, kupenya kwe LED kunopenya. Ehe, mukana mukuru wekuramba uye capacitive nhanho-pasi kutyaira LEDs ndiyo yakaderera mutengo. Naizvozvo, mamwe makambani ekuvhenekesa LED achiri kushandisa nzira iyi.
Vamwe vagadziri, kuti vaderedze mutengo wechigadzirwa, vachishandisa inogara voltage kutyaira iyo LED, zvakare inounza nhevedzano yemibvunzo pamusoro pekupenya kusingaenzanisi kwe LED imwe neimwe mukugadzirwa kwehuwandu, iyo LED haigone kushanda munzvimbo yakanakisa, nezvimwe. .
Constant ikozvino sosi yekutyaira ndiyo yakanakisa LED yekutyaira nzira. Inotungamirirwa nekugara kwazvino kwazvino. Izvo hazvidi kubatanidza ikozvino kudzikamisa resistors mune inobuda wedunhu. Iyo yazvino inoyerera kuburikidza ne LED haina kukanganiswa nekunze kwemagetsi emagetsi shanduko, ambient tembiricha shanduko, uye discrete LED paramita. Mhedzisiro ndeyekuchengeta yazvino nguva dzose uye kupa yakazara kutamba kune akasiyana akanakisa maitiro eiyo LED.