Cov txheej txheem:
- Kauj Ruam 1: Tshem Qhov Kawg Kawg
- Kauj Ruam 2: Tshem Tawm Sawb thiab Tsav Tsheb
- Kauj Ruam 3: Nws Ua Haujlwm Li Cas
- Kauj ruam 4: Txaus siab rau
Video: T8 Mains LED Teeb Teardown: 4 Kauj Ruam
2024 Tus sau: John Day | [email protected]. Kawg hloov kho: 2024-01-30 09:26
Nyob Zoo Sawv Daws, Hauv Cov Lus Qhia no Kuv yuav qhia koj li cas qhov hluav taws xob qhov hluav taws xob T8 LED teeb tau tsim thiab ua haujlwm.
Yav dhau los, T8 lub teeb roj fluorescent tau tshwm sim ntau heev kom pom hauv chaw ua haujlwm thiab lwm qhov chaw lag luam rau nws qhov ntau thiab ntau lub teeb pom kev zoo. Hnub no, cov teeb roj fluorescent tau hloov nrog LEDs thiab tib hom ntawv tseem raug khaws cia.
T8 sawv rau tus qauv teeb uas yog ib nti inch. Nws tau qhia nyob rau xyoo 1930 tab sis tau dhau los ua neeg nyiam nyob rau xyoo 1980s.
Kuv tab tom txhim kho T8 LED qhov muag teev hauv kuv lub tsev rhiav thiab hmoov tsis txog, ib qho ntawm lawv tau tawg hauv cov txheej txheem. Hloov chaw pov nws rau hauv cov thoob khib nyiab, Kuv tau txiav txim siab los kua muag nws thiab qhia koj tias nws tau tsim li cas.
Kauj Ruam 1: Tshem Qhov Kawg Kawg
Txhawm rau qhib nws, Kuv xub rub lub hau ntawm sab uas nws tau tawg thiab pom cov xaim txuas rau ob qho ntawm lub dav hlau ntawm lub hau. Kuv tau txiav qhov ntawd thiab kuv tuaj yeem tshem lub hau. Ntawm sab hauv kuv pom tias muaj ntau cov kua nplaum kub heev yog li kuv paub tias sim ua kom nws qhib rau ntawm lwm sab yuav ua rau ntau ya iav.
Hloov chaw, nrog kuv pom kev daws teeb meem, Kuv tau txiav los ntawm sab ntawm lub hau kom xaim tawm ntawm lwm sab thiab txiav nws ib yam. Txij li lub hau tseem tau muab tso rau hauv qhov chaw, Kuv tau txiav nws nrog lub kaw thiab muaj peev xwm txhawm rau qhib nws los ntawm lub raj.
Kauj Ruam 2: Tshem Tawm Sawb thiab Tsav Tsheb
Thaum qhov kawg no, LED tsav lub rooj tsavxwm tseem tau ua kom zoo nrog qhov me ntsis ntxiv, Kuv tswj tau tso nws thiab tshem nws tawm ntawm lub teeb diffuser. Txhawm rau txhua yam nyob hauv qhov chaw, sab hauv lub diffuser muaj ib txoj hauv kev uas cov hlua LED nyob hauv.
Kev tsim cov kab hluav taws xob LED tau ua tiav ntawm aluminium txhawb nqa PCB, qhov twg ib qho xaim ntawm AC txuas tau muab txuas rau ntawm ib kawg thiab tom qab ntawd nws khiav mus raws qhov ntev mus rau lwm sab qhov chaw tsav tsheb nyob.
Ib daim kab xev ua npuas tau lo rau hauv qab ntawm lub rooj tsav tsheb thiab tom qab tshem tawm, Kuv muaj peev xwm thim rov qab tus kws ua haujlwm li cas nws ua haujlwm. Thaum xub thawj kuv xav tias nws yog tus qauv hloov pauv lub zog siv hluav taws xob tab sis "hloov pauv" saib lub cuab yeej tsuas muaj ob txoj kev sib txuas thiab yog qhov txhaws qhov muag, qhov uas tag nrho cov neeg tsav tsheb ua haujlwm raws li kev hloov pauv hloov pauv.
Kauj Ruam 3: Nws Ua Haujlwm Li Cas
Kuv tau ua qee qhov khawb thiab kuv tuaj yeem nrhiav cov ntawv teev npe rau tus tsav tsheb, tus lej yog LIS9413. Tag nrho cov ntaub ntawv ntawm nws yog lus Suav tab sis kuv muaj peev xwm txheeb xyuas tau tias qhov no yog cov tsav tsheb tsis tu ncua tam sim no thiab cov piv txwv piv txwv hauv daim ntawv teev npe yog raws nraim li cas pawg tsav tsheb tau tsim.
AC cov tswv yim los ncaj qha rau tus choj txuas thiab nws cov zis yog tom qab ntawd du los ntawm 400V 10uF capacitor. Tus tsav tsheb tau tsav ntawm tus pin 1 ncaj qha los ntawm cov khoom siv hluav taws xob siab. Tus pin 7 yog hauv av thiab tus pin 4 yog siv los teeb tsa tam sim no ntawm LEDs. Hauv qhov no, tus tiv thaiv siv tau muaj tus nqi 2.2Ohms thiab nws txuas nrog ntawm tus pin 4 thiab hauv av.
Txhawm rau txuas cov zis ntawm cov nti mus rau LEDs, ob tus pin tau siv, tus pin 6 thiab 7. Lub choke tau txuas nrog hauv kab nrog cov hlua ntawm LEDs thiab lub flyback diode tau ntxiv rau hauv kev sib txuas los tiv thaiv qhov flyback qhov hluav taws xob nrawm ntawm tus inductor..
Nyob rau hauv tag nrho, 126 LEDs tau teeb tsa ntawm kab txaij hauv 42 pawg ntawm 3 LEDs sib xws uas tau txuas nrog ua ke. Txij li thaum tag nrho cov kev sib dhos tseem zoo thiab ua haujlwm, Kuv yuav sim nrhiav qhov siv tau zoo rau nws thiab tsim kho kom haum rau.
Kauj ruam 4: Txaus siab rau
Kuv vam tias koj pom qhov Qhia Qhia no txaus siab thiab koj tau tswj kom kawm tau qee yam. Yog tias koj muaj lus nug lossis lus nug, tom qab ntawv tso rau hauv qab no, tsis txhob hnov qab nyiam thiab sau npe yuav rau kuv Youtube channel thiab kuv yuav pom koj txhua tus nyob rau tom ntej.
Cheers!
Pom zoo:
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