Cov txheej txheem:

Mains Powered Solar Garden Teeb Kho Kom Zoo: 7 Kauj Ruam
Mains Powered Solar Garden Teeb Kho Kom Zoo: 7 Kauj Ruam

Video: Mains Powered Solar Garden Teeb Kho Kom Zoo: 7 Kauj Ruam

Video: Mains Powered Solar Garden Teeb Kho Kom Zoo: 7 Kauj Ruam
Video: DRAGON BALL Z GOKU GONE MAD 😭 2024, Kaum ib hlis
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Mains Powered Solar Garden Lub Teeb Kho Kom Zoo
Mains Powered Solar Garden Lub Teeb Kho Kom Zoo
Mains Powered Solar Garden Lub Teeb Kho Kom Zoo
Mains Powered Solar Garden Lub Teeb Kho Kom Zoo
Mains Powered Solar Garden Lub Teeb Txum Tim Rov Qab Los
Mains Powered Solar Garden Lub Teeb Txum Tim Rov Qab Los

Qhov no yeej ua raws los ntawm qee qhov ntawm kuv qhov kev siv hluav taws xob yav dhau los tab sis muaj feem cuam tshuam nrog LED Teardown yav dhau los sau tseg.

Tam sim no peb txhua tus tau tawm mus thiab yuav lawv nyob rau lub caij ntuj sov, cov paj me me ciam teeb uas yog lub hnub ci ci thiab them nyiaj thaum nruab hnub thiab ib zaug hmo ntuj pib hauv lawv ua raws li lub teeb pom kev zoo ntawm lub vaj paj. cov khoom lag luam pheej yig uas raug kev txom nyem hauv huab cua qub Askiv zoo nrog cov roj teeb ua tsis tiav thiab qee zaum tsuas yog ua tsis tau lub hnub ci ci.

Feem ntau koj yuav cov khoom no hauv pob ntawm 4 lossis ntau dua thiab lub teeb ci yog ib lub zog qis uas coj los ntawm ntau yam pheej yig. Thaum tuag peb pov lawv rau hauv lub thoob thiab tawm mus pov tseg qhov lawv mus. Zoo nws tau txais kuv xav, vim li cas ho tsis hloov nws mus rau lub zog siv hluav taws xob nrog 10W ntawm LED's. Nws yuav tsum muaj kev nyab xeeb txawm tias thiab tiv thaiv los ntawm huab cua thiab nws yuav tsum tau pheej yig. Nws puas tuaj yeem ua tiav kuv xav tsis thoob, thiab puas yuav 10W ntau dhau? Los ntawm cov duab koj tuaj yeem pom tias lub hauv paus ntawm lub teeb yog tubular tsim ntawm kwv yees li 60 hli txoj kab uas hla ntawm cov hlau tsis huv thiab yas diffuser.plus lwm lub tubular lub hau uas haum rau saum nrog rau lub hnub ci vaj huam sib luag hauv. Thawj qhov kuv tau ua yog tshem tawm qhov qub me me coj dawb thiab cov vaj huam sib luag hnub ci hauv lub ru tsev..

Kauj Ruam 1: Cov Lus Qhia Tshwj Xeeb ntawm LED

Muaj tsis ntev los no tau yuav qee qhov 10W ib leeg COB coj kuv xav tsis thoob tias nws puas tuaj yeem siv ib leeg nkaus xwb thiab siv lub zog hloov hluav taws xob ncaj qha los ntawm lub hauv paus [240V UnIsolated] Tus neeg yuav los sib tw yog hom hloov pauv lub zog tsav tsav FL7701 thiab inductor 1.4mH coilcraft. Hmoov tsis zoo qhov kev hloov pauv ntawm 240v mus rau FW ntawm COB thaiv [12V] tsis npaj ua haujlwm raws li qhov xav tau tam sim no los ntawm COB ntau dua li cov tsav tsheb nti tuaj yeem ua yog tias koj xav tau 10W. Cov nti tuaj yeem ua haujlwm 0.5A uas nrog rau qhov hluav taws xob tom ntej ntawm 12v tsuas yog coj koj mus rau 5W lossis nyob ntawd. Koj tuaj yeem siv lub tshuab hloov pauv tom ntej nrog kev sib cais uas yuav ua haujlwm tab sis tus nqi pib nce, tom qab txhua qhov no xav tias yuav pheej yig thiab zoo siab. Yog li cas kuv thiaj tuaj yeem tau 10W nrog tsuas yog 0.5 A tam sim no. Zoo muab kev txuag hluav taws xob txoj kev xav tsuas yog txoj hauv kev kom nce wattage yog txhawm rau nce qhov hluav taws xob, thiab tib txoj hauv kev kuv tuaj yeem ua qhov ntawd yuav yog txhawm rau nce qhov ua ntej qhov hluav taws xob ntawm cov coj los ntawm kev siv ntau dua ib qho ntawm lawv. Yog tias koj saib kuv LED Teardown qhia paub koj tuaj yeem pom vim li cas lawv thiaj ua qhov no hauv qhov tsim. Txheeb xyuas ntawm EBAY Kuv npaj tau pom qee qhov 1W coj nrog lub zog hluav taws xob 0f 3V@330mA. Tam sim no yog tias kuv siv 10 thiab qis dua lawv @266mA Kuv yuav xaus nrog 10 x 3 x0.266A = 8W … kaw txaus. Cov underrun muaj ob txoj hauv kev mus…. Ua kom lub cua sov qis thiab yog li khaws cia lossis txuas lub neej.

Kauj ruam 2: LED Base

LED puag
LED puag
LED puag
LED puag
LED puag
LED puag

Saib cov duab ntawm lub vaj teeb uas xav tau yog txheej txheem ntawm kev teeb tsa cov LED no thiab ntawm chav kawm yog tias lawv tau poob 266mA peb yuav tsum tau tshem tawm 8W ntawm lub zog thoob plaws lawv uas yuav xav tau lub rhaub dej kub. raj yog me ntsis qis dua 57mm yog li yog tias kuv tuaj yeem txuas ib qho ntawm cov khoom siv hluav taws xob hauv lub raj yas kaw thiab teeb tsa nws sab hauv lub raj. Kuv tuaj yeem nruab lub phaj ntawm leds tig mus rau sab saum toj ntawm lub thawv uas tom qab ntawd teeb lub diffuser Yog li peb yuav npaj cov coj li cas?

Ua ntej tshaj plaws kuv txiav ib lub voj voog ntawm 46.5mm ntawm txhuas nrog lub qhov hauv nruab nrab siv lub qhov pom [saib daim duab] thiab siv qee qhov ob tog ob sab heatsink kab xev npog ib sab. Koj tuaj yeem tau txais daim kab xev no ntawm ebay thiab nws pheej yig, feem ntau siv rau heatsink txuas saib daim duab. Aluminium yog cov khoom siv hluav taws xob qub qub tab sis koj tuaj yeem zaum yuav qhov no ntawm ebay. Kuv siv ib daim 2mm tuab. Koj yuav tsum tau npog thiab thaiv cov hlau los ntawm lub hauv paus ntawm cov coj tab sis tseem muaj cov cua sov zoo. Ua ob npaug ntawm ceg tawv ntawm cov kab xev cua sov tso rau hauv orthogonally hauv ob txheej. Qhov no yuav hloov pauv qhov ua kom sov thiab peb poob ntxiv 20 degrees c hla kev sib tshuam tab sis qhov ntawd yog qhov nws yuav siv. Kuv yuav rov los saib qhov no tom qab thiab tej zaum saib ntawm qhov sib tov sib xyaw ua kom haum tab sis tsis yog tam sim no.

Kauj ruam 3: BasePlate

BasePlate
BasePlate
BasePlate
BasePlate
BasePlate
BasePlate

Tom qab ntawd kuv siv Autocad los teeb tawm qhov twg lub teeb xav tau mus rau ntawm lub hauv paus. Saib cov duab ntawm qhov txuas no ua pdf's.

Kuv tau luam tawm tus qauv los ntsuas thiab siv lub qhov xaum txhawm rau txhawm rau teeb tsa tus qauv ntawm cov qauv los ua raws li phau ntawv qhia ntxhib. Tuav qhov no hla kuv daim ntawv nplaum nplaum kuv kos cov qauv ntawm cov voj voog ntawm kab xev.

Tom ntej no kuv tso cov leds kom kuv tuaj yeem tau txais qee qhov chaw ntawm qee daim kab xev tooj liab uas kuv yuav siv los txuas cov leds ntawm cov nplaim hluav taws xob rwb thaiv tsev.

Ua kom ntseeg tau tias tsis muaj daim kab xev tooj liab ua txhaum rau hauv qab ntawm "slug" Kuv tau muab lawv tso ua ke. Tau kawg koj yuav tsum paub tseeb tias cathodes mus rau anodes. Koj tuaj yeem tsuas yog rub lawv thiab siv qee qhov txuas txuas ntawm cov pins txawm hais tias siv daim kab xev tooj liab pab txhawm rau txhawm rau qee qhov cua sov mus rau hauv kab xev. Kuv xaiv rau 40x40x30 H rhaub dej uas khaws cov phaj hauv qab ntawm ib puag ncig 58-60 degrees C. Nws tshwm sim tias nws qhov loj me haum haum rau hauv lub hnub ci nti tshem tawm Tso rau cov cua sov ua kom sov hla kev sib tshuam rau rooj plaub ntawm coj txog 4 deg c ib watt thiab hais tias 1 deg C rau watt los ntawm phaj rau cov ntaub ntawv qhov no yuav tsum txhais tau tias kev sib tshuam temp ntawm (8x1)+4 = kwv yees li. 60+12 degrees C = 72 degrees C uas yuav tsum tsim nyog.

Tag nrho cov hluav taws xob hla cov leds yuav yog 10 x 3v lossis nyob ntawd yog li theem tom ntej yuav ntsuas qhov tam sim no los ntawm lawv.

Cov ntawv txuas nrog PDF muaj tus qauv qhia kom siv ua tus qauv tab sis koj tuaj yeem ib txwm ua koj tus kheej tsim.

Txheeb xyuas qhov txuas txuas easam uas koj tuaj yeem rub tawm eviewer kom nkag siab

Kauj Ruam 4: Sab saum toj Los Ua Ke

Sab saum toj los ua ke
Sab saum toj los ua ke
Sab saum toj los ua ke
Sab saum toj los ua ke
Sab saum toj los ua ke
Sab saum toj los ua ke
Sab saum toj los ua ke
Sab saum toj los ua ke

Peb tau hais ua ntej tias peb yuav siv FL7701 tus tsav tsheb rau qhov no thiab ua si nrog xcel daim ntawv nthuav dav tus tsim qauv tau teeb tsa cov duab uas yuav ua haujlwm. Qhov tseem ceeb rau tus nqi hloov pauv yog kom tau txais lub ripple nqis mus rau qee yam tsim nyog muab tus nqi RMS peb xav tau. Ripple muaj kev coj ncaj qha rau qhov loj me inductor thiab zaus ntawm kev ua haujlwm tsis raug. Yog li yog tias peb nce lub ripple peb yuav tsum nce qhov loj me inductor thiab tib txoj hauv kev ces txhawm rau txo qhov xav tau inductance yog kom nce zaus. Saib cov duab txuas nrog uas teev dab tsi kuv tau rov ua dua thiab yog qhov tseem ceeb rau cov txiaj ntsig ntawm cov txheej txheem.

Nov yog cov kab laug sab LED tso rau ntawm kuv tus qauv ua ntej txhawm rau txhawm rau lawv. Nco tseg kev siv lub rhaub dej kub uas muaj phaj txuas mus rau hauv qab nrog cov teeb ci teeb.

Ua kom tam sim no nce mus rau 266mA RMS los ntawm kev kho qhov siab tshaj tam sim no rau 500mA teeb tsa qhov hluav taws xob ntawm tsuas yog ntau dua 30v hla cov leds uas cuam tshuam tias qhov hluav taws xob tau nyob ze rau 3v rau pem hauv ntej yog tias peb muaj 10 leds. Nco ntsoov tias kev suav xav tau 286mA qhov nyob hauv qhov tseeb peb tsuas yog tswj 266. Frequency yuav tsum yog 101Khz txawm li cas los saib ntawm qhov pom tau zoo li me ntsis hauv qab. Kuv yuav tham txog cov txheej txheem thiab tus tsav tsheb thiab cov qauv ntawm cov kauj ruam tom ntej.

Yog li ntsaws rau hauv lub hauv paus kom zoo li tsob ntoo Christmas. Qhov ceev ntawm no ntawm kev nyab xeeb. Qhov no tsis yog kev tsim cais yog li txhua yam uas tuaj yeem nce mus rau theem tseem ceeb xav tau earthing kom huv. Qhov no yuav suav nrog lub rhaub dej kub uas yog koj ua tib zoo saib muaj ob peb lub qhov uas yuav tsum tau muab nws tus kheej kaw ntawm lub ntiaj teb lossis rau lub rhaub dej kub thiab cov hlau tsis ua haujlwm thiab lub hauv paus loj hauv ntiaj teb. Ceev faj nrog txoj hlua ntawm cov coj uas tsis muaj qhov luv nruab nrab ntawm cov coj thiab hauv av. Yog tias nws ua tau zoo tshaj qhov tsim hluav taws xob tshwm nyob thoob plaws lub leds thiab yuav rhuav tshem lawv sai. rau ib qho ntawm cov hlau uas raug rho tawm yuav yog qhov txaus ntshai.

Kauj Ruam 5: Kuaj thiab Schematic

Xeem thiab Schematic
Xeem thiab Schematic
Xeem thiab Schematic
Xeem thiab Schematic
Xeem thiab Schematic
Xeem thiab Schematic
Xeem thiab Schematic
Xeem thiab Schematic

Yog li cia dhia rov qab thiab saib qhov peb xav tau tsav lub leds. Peb twb hais tias peb xav tau kev txhawb nqa 266mA lossis muaj txog li ntawd peb twb tau ua tus lej lawm.

Xa mus rau schematic ceeb toom cov hauv qab no:

Tuaj los ntawm fuse 1 mus rau tus choj rectifier ces lim cov inductor nrog ob c's.

D1 yog qhov rov qab diode thiab txhais tau tias txhim kho qhov tam sim no nqes ntawm qhov inductor. Q1 lub rooj vag tau tsav los ntawm tus pin 2 ntawm FL7701 ntawm R3 nrog D2 pab cheb tus nqi tawm ntawm lub qhov rooj ntawm qhov tsis zoo ntawm FL7701. Qhov zaus ntawm cov zis tau teeb tsa los ntawm R5/R4. Ob peb tus pin muaj qee qhov txiav tawm thiab CS tus pin..pin1 yog qhov kev nkag siab tam sim no uas yog saib xyuas qhov hluav taws xob thiab yog li tam sim no dhau R6. Ntau mus rau qhov siab tshaj tam sim no hauv R6 ntawm 0.5A uas yuav ua rau IC rov pib dua thiab nce nqis nqis los npaj rau Tom ntej ntawm lub sijhawm. Nco tseg dab tsi uas ploj lawm hauv Circuit no. Tsis muaj qhov xav tau rau lub khoos phis tawj loj DC lub hau rau cov tswv yim. FL7701 ua tib zoo saib xyuas cov kev hloov pauv sab hauv. Muab qhov no feem ntau yog ib feem kim nws pab txuag tus nqi. Thaum PCB muaj neeg nyob kuv tau txheeb xyuas lub ripple. Siv qhov kev soj ntsuam tam sim no ntawm cathode ntawm tus coj thaiv tau muab ripple li 150mA thiab qhov nruab nrab tam sim no siv lub ntsuas tau ntsuas raws li kwv yees. 260 mA os. Qhov no yog 100mA nqes ntawm qhov siab tshaj plaws rau cov coj thiab cia lawv khiav txias dua yog li txuas ntxiv lawv lub neej. Zaus tau ntsuas raws li 81Khz thiab nce raws li 1.71us. Qhov no yog 13% ntawm kev muaj peev xwm ntawm cov nti/inductor yog li yuav tsum tau zoo. Qhov pib rau tag nrho cov qauv tsim no yog siv 1.4mH tawm ntawm lub txee coilcraft inductor

Kauj Ruam 6: Kev Tsim Kho PCB

Kev Tsim Kho PCB
Kev Tsim Kho PCB
Kev Tsim Kho PCB
Kev Tsim Kho PCB
Kev Tsim Kho PCB
Kev Tsim Kho PCB

Nco ntsoov tias cov duab yog ntawm pawg thawj coj uas muaj qee qhov yuam kev ntawm nws uas kuv tau kho ntawm qhov tshiab tso tawm pcb txheej txheem. Nco tseg cov dhia dhia rau nws kom tau txais qee qhov pinning tsis raug….doh qhov no ua rau qee qhov tawg ua ntej kuv pom qhov ua yuam kev… yuav tsum tau nkees!

Muaj ob peb sab saum toj thiab ib qho hauv qab.

Kauj Ruam 7: Muab tag nrho ua ke

Muab Nws Tag Nrho Ua Ke
Muab Nws Tag Nrho Ua Ke
Muab Nws Tag Nrho Ua Ke
Muab Nws Tag Nrho Ua Ke
Muab Nws Tag Nrho Ua Ke
Muab Nws Tag Nrho Ua Ke
Muab Nws Tag Nrho Ua Ke
Muab Nws Tag Nrho Ua Ke

Yog li ntawm no nws yog slotted ua ke. Kuv yuav txuas BOM cov npe ntawm txhua qhov yuav tsum tau ua tom qab. Qee yam uas yuav tsum tau saib xyuas. Kuv earthed lub rhaub dej kub rau saum thiab pub nws los ntawm chav tsev mus rau qhov chaw hauv av hauv qab. Ceev faj txog qhov no. Cathode ntawm qhov kawg LED yog 30V lossis qis dua hauv qab qhov siab tshaj qhov hluav taws xob ntawm 310V. Qhov no yuav mob yog tias kov yog li yuav tsum tau khaws cia cais thiab ib qho hlau uas tuaj yeem cuam tshuam rau hauv lub ntiaj teb txhawm rau txhawm rau kom ntseeg tau txoj hauv kev meej rau qhov ua txhaum tam sim no. mus rau hauv electronics. Lub ntiaj teb ntsia hlau nyob hauv qab ua qhov chaw nres rau lub hauv paus "cannister" thiab muaj lub qhov tso dej yog tias muaj dej noo pom nws txoj hauv kev. Cov qhov dej ntws zoo tshaj hauv av. Lub rhaub dej kub xav tau qee qhov kev sib khi ib puag ncig sab saum toj thiab qhov no tseem yuav ua kom tiav.

Pom zoo: