Ihe mepụtara nke LED (diodes na-enwu ọkụ) bụ usoro ọtụtụ ọkwa gụnyere onyinye sitere n'aka ọtụtụ ndị ọkà mmụta sayensị. Nke a bụ ụfọdụ isi oge akụkọ ihe mere eme na mmepụta nke LEDs:
Tiori na nnwale mbụ:
1907:Ọkà mmụta sayensị Britain bụ HJ Round buru ụzọ hụ na semiconductor material silicon carbide (SiC) na-amụnye ọkụ mgbe etinyere ọkụ eletrik. Nke a bụ ihe mbụ e dekọrọ electroluminescence nke ihe semiconductor.
Afọ 1920:Ọkà mmụta sayensị Russia Oleg Losev gara n'ihu mụọ ihe omume ahụ wee bipụta akwụkwọ na ụkpụrụ nke LED na 1927, mana ọ dọtaghị uche zuru oke n'oge ahụ.
Mmepe nke LEDs bara uru:
1962:Nick Holonyak Jr., onye injinia na-arụ ọrụ na General Electric (GE) n'oge ahụ, chepụtara ọkụ ọkụ mbụ a na-ahụ anya (LED LED). A maara Holonyak dị ka "Nna nke LED".
1972:M. George Craford, a nwa akwụkwọ nke Holonyak, chepụtara akpa odo ikanam na ukwuu mma nchapụta nke red na oroma LEDs. O mere mmezi dabere na ihe gallium nitride phosphorus (GaAsP) iji mee ka ọkụ nke LED dịkwuo okpukpu iri.
1970s na 1980s: Ịga n'ihu na nkà na ụzụ mere ka ịmepụta LEDs na agba ndị ọzọ, gụnyere akwụkwọ ndụ akwụkwọ ndụ, odo, na oroma.
Ọganihu LED na-acha anụnụ anụnụ:
Afọ 1990:Ndị ọkà mmụta sayensị na Hitachi na Nichia, ọkachasị Shuji Nakamura, chepụtara LEDs na-acha anụnụ anụnụ. Nke a bụ nnukwu ọganihu site na iji ihe gallium nitride (GaN). Ihe mepụtara LEDs na-acha anụnụ anụnụ mere ngosipụta agba zuru oke yana LEDs ọcha kwere omume.
2014:Shuji Nakamura, Isamu Akasaki, na Hiroshi Amano nwetara Nrite Nobel na Physics maka ọrụ ha na LEDs na-acha anụnụ anụnụ.
Mmepe nke LEDs ọcha:
A na-emepụta ọkụ ọkụ na-acha ọcha site na ijikọ ọkụ na-acha anụnụ anụnụ na phosphor. Ìhè na-acha anụnụ anụnụ sitere na LED-acha anụnụ anụnụ na-akpali phosphor, nke na-ewepụta ìhè edo edo, na ngwakọta nke abụọ na-emepụta ìhè ọcha.
Ọganihu na teknụzụ LED emeela ka agba agba agba agba ọ bụghị naanị n'ụdị a na-ahụ anya, kamakwa na ultraviolet na oke infrared. Taa, a na-eji LED eme ihe n'ụdị dị iche iche, gụnyere ihe ngosi, ọkụ ọkụ, ọkụ na-egosi, na nkwukọrịta.
Ndị na-esonụ na-ewebata isi nhazi na ngwa nke LED
●Nhazi site na mmepụta ike: 0.4W, 1.28W, 1.4W, 3W, 4.2W, 5W, 8W, 10.5W, 12W, 15W, 18W, 20W, 23W, 25W, 30W, 45W, 10W, 10W, 120W , 200W, 300W, wdg.
● Nhazi site na mmepụta voltaji: DC4V, 6V, 9V, 12V, 18V, 24V, 36V, 42V, 48V, 54V, 63V, 81V, 105V, 135V, etc.
●Nhazi site na ọdịdị ọdịdị: ụdị abụọ: PCBA bare board na shei.
●Nhazi site na nhazi nchekwa: ụdị abụọ: dịpụrụ adịpụ na ndị na-adịghị.
●Nhazi site na ike ike: na-emezi ihe ike na-enweghị ihe ike.
●Nhazi site na ịrụ ọrụ mmiri: mmiri na-adịghị na mmiri na-adịghị.
●Nhazi site na usoro mkpali: mkpali onwe onye na mkpali mpụga.
●Nhazi site na sekit topology: RCC, Flyback, Forward, Half-Bridge, Full-Bridge, Push-PLL, LLC, wdg.
●Nhazi site na usoro ntụgharị: AC-DC na DC-DC.
●Nhazi site na mmepụta mmepụta: ihe dị ugbu a na-agbanwe agbanwe, voltaji na-adịgide adịgide na ma ndị na-agba ọsọ na-agbanwe agbanwe.
Ngwa nke ọkụ ọkụ ọkwọ ụgbọala LED:
A na-eji ya maka ọkụ ọkụ, ọkụ kabinet, ọkụ abalị, ọkụ nchebe anya, ọkụ uko ụlọ LED, iko oriọna, ọkụ e liri, ọkụ n'okpuru mmiri, igwe mgbidi, ọkụ ide mmiri, ọkụ n'okporo ámá, igbe akara akara, ọkụ eriri, ọkụ ala, ọkụ nwere ụdị pụrụ iche, kpakpando. ọkụ, ọkụ nche, ọkụ egwurugwu, ọkụ mgbidi ákwà mgbochi, ọkụ na-agbanwe agbanwe, ọkụ warara, ọkụ belt, ọkụ piranha, ọkụ fluorescent, elu osisi ọkụ, ọkụ akwa, ọkụ Ngwuputa, ọkụ ọkụ, ọkụ mberede, okpokoro oriọna, ọkụ, ọkụ okporo ụzọ, oriọna na-azọpụta ike, ọkụ ọdụ ụgbọ ala, ọkụ ahịhịa, ọkụ na-acha agba, oriọna kristal, ọkụ ọkụ, ọkụ ọwara, wdg.
Anyị bụ ndị ọkachamara na-eweta ọkụ ọkụ LED na China, nabata ilelekatalọgụ ngwaahịa anyị.
Biko jụọ maka ụdị ndị ọzọ, kwado ngwaahịa ahaziri iche.
Oge nzipu: Ọgọst-03-2024