Kugadzirwa kwe LEDs (light emitting diodes) yaive yakawanda-nhanho nzira inosanganisira mipiro kubva kune vazhinji vesainzi. Heano mamwe akakosha enhoroondo nguva mukugadzirwa kwe LEDs:
Early theory uye experiments:
1907:Musayendisiti wekuBritain HJ Round akatanga kuona kuti semiconductor material silicon carbide (SiC) inoburitsa chiedza kana magetsi akaiswa. Iyi yaive yekutanga kurekodhwa electroluminescence phenomenon ye semiconductor zvinhu.
1920s:Musayendisiti wokuRussia Oleg Losev akawedzera kudzidza chiitiko ichi uye akaburitsa bepa pamusoro pemisimboti ye LED muna 1927, asi haina kukwezva kutarisisa kwakapararira panguva iyoyo.
Kuvandudzwa kweanoshanda LEDs:
1962:Nick Holonyak Jr., injiniya aishanda kuGeneral Electric (GE) panguva iyoyo, akagadzira chiedza chekutanga chinooneka che LED (red LED). Holonyak inozivikanwa se "Baba ve LEDs".
1972:M. George Craford, mudzidzi weHolonyak, akagadzira yekutanga yero LED uye akavandudza zvakanyanya kupenya kwema LED matsvuku neorenji. Akaita kuvandudzwa kwakavakirwa pa gallium nitride phosphorus (GaAsP) zvinhu kuti awedzere kupenya kwe LED kagumi.
1970s uye 1980s: Kufambira mberi tekinoroji kwakatungamira mukusikwa kwemaLED mune mamwe mavara, anosanganisira girinhi, yero, uye orenji.
Blue LED Kubudirira:
1990s:Masayendisiti kuHitachi naNichia, kunyanya Shuji Nakamura, akagadzira ma LED ekupenya kwebhuruu. Uku kwaive kubudirira kukuru kushandisa gallium nitride (GaN) zvinhu. Kugadzirwa kweblue LEDs kwakagadzira yakazara-ruvara kuratidza uye machena maLED anogoneka.
2014:Shuji Nakamura, Isamu Akasaki, naHiroshi Amano vakapihwa Mubairo weNobel muFizikisi nekuda kwebasa ravo pama LED ebhuruu.
Kuvandudzwa kweWhite LEDs:
Ma LED machena anowanzo kugadzirwa nekubatanidza ma LED ebhuruu ne phosphors. Chiedza chebhuruu chinobva kublue LED chinofadza phosphor, iyo inobva yaburitsa yellow light, uye kusanganiswa kwezviviri izvi kunoburitsa chiedza chichena.
Kufambira mberi mune tekinoroji ye LED kwakaunza huwandu hwakawanda hwemavara e LED kwete chete mumhando inooneka, asiwo mu ultraviolet uye infrared ranges. Nhasi, ma LED anoshandiswa mumhando dzakasiyana-siyana dzekushandisa, kusanganisira zviratidzo, mwenje, mwenje wechiratidzo, uye kutaurirana.
Izvi zvinotevera zvinounza iyo yekutanga kupatsanurwa uye kushandiswa kwe LED
● Kurongwa nesimba rinobuda: 0.4W, 1.28W, 1.4W, 3W, 4.2W, 5W, 8W, 10.5W, 12W, 15W, 18W, 20W, 23W, 25W, 30W, 45W, 60W, 10W, 1 , 200W, 300W, nezvimwewo.
● Kurongeka nemagetsi ekubuda: DC4V, 6V, 9V, 12V, 18V, 24V, 36V, 42V, 48V, 54V, 63V, 81V, 105V, 135V, nezvimwewo.
● Kurongwa nechimiro chechimiro: mhando mbiri: PCBA isina bhodhi uye ine shell.
● Kurongwa nekuchengetedzwa kwemaitiro: marudzi maviri: ari oga uye asina-akasarudzika.
● Kurongeka nechinhu chesimba: ine simba rekugadzirisa zvinhu uye pasina simba chinhu.
● Kusarudzwa nekushanda kwemvura: kusapinda kwemvura uye kusina mvura.
●Kuronga nenzira yekusimudzira: kuzvidzora uye kunakidzwa kwekunze.
● Kurongeka nedunhu topology: RCC, Flyback, Forward, Half-Bridge, Full-Bridge, Push-PLL, LLC, nezvimwewo.
●Kuronga nenzira yekushandura: AC-DC uye DC-DC.
● Kurongeka nekuita kwekubuda: nguva dzose ikozvino, nguva dzose magetsi uye zvose zvinogara zviripo uye zvinogara zvichiitika.
Kushandiswa kwe LED mutyairi magetsi ekupa:
Inoshandiswa sezvivheneko, marambi ekhabhati, mwenje yeusiku, mwenje yekudzivirira maziso, mwenje wesirin'i yeLED, makapu emwenje, mwenje wakavigwa, mwenje wepasi pemvura, washers wemadziro, mwenje wemvura, marambi emumugwagwa, zvikwangwani zvemwenje mabhokisi, tambo mwenje, mwenje pasi, mwenje wakasarudzika, nyeredzi. mwenje, mwenje wevarindi, marambi emurarabungu, machira emadziro emadziro, mwenje unochinjika, mwenje webhandi, piranha mwenje, mwenje wefluorescent, mwenje wepamusoro, marambi ebhiriji, marambi emigodhi, tochi, mwenje wekukurumidzira, mwenje wetafura, mwenje, marobhoti, marambi ekuchengetedza simba, marambi emota, marambi elawn, marambi ane mavara, marambi ekristaro, mwenje wegrille, tunnel mwenje, nezvimwe.
Isu tiri inyanzvi LED magetsi ekupa mutengesi muChina, tinogamuchirwa kuonayedu chigadzirwa catalog.
Ndokumbira utarise kune mamwe mamodheru, tsigira zvakagadziridzwa zvigadzirwa.
Nguva yekutumira: Aug-03-2024