Macro Photography Lub Teeb Tau Siv Cov Teeb Txias Cathode: 9 Cov Kauj Ruam (nrog Duab)

2024 Tus sau: John Day | [email protected]. Kawg hloov kho: 2024-01-30 09:30

Thaum tua siv lub tsev pheeb suab teeb pom kev siv lub teeb pom kev tsawg tsawg yog qhov muaj txiaj ntsig zoo. CCFL (txias cathode fluorescent teeb) pom hauv LCD cov ntxaij vab tshaus yog qhov zoo rau lub hom phiaj no. CCFL thiab cov teeb pom kev sib cuam tshuam tuaj yeem pom hauv lub laptop tawg thiab lcd cov ntxaij vab tshaus rau yam tsis muaj dab tsi. Cov lus qhia no qhia yuav ua li cas siv lub thawv khaws cia, DC lub zog siv hluav taws xob thiab lub tshuab hloov hluav taws xob los tsim lub teeb pom kev loj, qis siv qis. Yog tias koj tsis ntseeg siab txog kev ua haujlwm nrog ib yam ntawm cov no, tsis txhob sim ua txoj haujlwm no.

Kauj ruam 1: Cov ntaub ntawv

Koj yuav xav tau cov ntaub ntawv hauv qab no:

• Lub vaj huam sib luag LCD tawg nrog ua haujlwm Txias Cathode Fluorescent Teeb raj
• DC-AC inverter rau koj lub vaj huam sib luag LCD thiab cov hlua txuas
• DC lub peev xwm muaj peev xwm tsim tau yam tsawg kawg 12V
• Soldering Hlau
• Xaiv cov resistors (rau 12V fais fab mov 70K Ohm thiab 50K Ohm)
• Ib Leeg, Ib Leeg Pov Hloov (SPST)
• Proto/Breadboard
• Hookup Hlau
• Screwdrivers thiab lwm yam cuab yeej ntawm kev puas tsuaj
• COMMON SENSE rau ua haujlwm nrog HIGH VOLTAGE

Kauj Ruam 2: Nrhiav Lub Lcd Vaj Huam Sib Luag tawg

Nrhiav lub vijtsam LCD uas tseem tsis pom kev, tab sis yog lwm yam tsis ua haujlwm. Yog tias lub vijtsam tsis pom txhua, nws yuav muaj kev txom nyem los ntawm kev hnav CCFL lossis hloov pauv. Hauv qhov no, koj tuaj yeem sim yuav qhov hloov pauv hloov lossis raj, tab sis feem ntau qhov no yog qhov ncaj ncees. Qhov LCD cov ntxaij vab tshaus tuaj yeem pom ntawm EBay. Saib rau 15 "-17" tus saib.

Kauj Ruam 3: Extract LCD Txheej

Ib lub vaj huam sib luag LCD yog ua los ntawm peb txheej:

• LCD - lub vaj huam sib luag xim dub uas ua tau cov duab (txheej sab saud)
• txheej txheej tawg - feem ntau muaj peb txheej yas uas pab faib lub teeb los ntawm CCFL tusyees hla tag nrho lub vaj huam sib luag
• ib lub vaj huam sib luag rov qab - txheej kawg ntawm lub vaj huam sib luag - lub CCFL qhov muag feem ntau tau teeb lossis txuas rau txheej no. Siv kev saib xyuas hnyav thaum tuav qhov feem ntawm qhov screen. CCFL yog lub raj iav nyias nyias uas yog qhov muag heev. Tsis tas li, nws tau ntim nrog cov pa mercury uas tsis zoo rau koj lossis koj lub paj hlwb. Tsis txhob ua txhaum nws.

Tshem tawm cov ntsia hlau ib ncig ntawm tus ncej, thiab txiav ib daim kab xev los ntawm ob sab ntawm tus ncej. Tshem tawm cov phiaj xwm hluav taws xob sab nraum qab ntawm lub vaj huam sib luag. Tshem tawm tag nrho peb txheej los ntawm tus ncej; cais lub vijtsam LCD los ntawm lwm txheej. Maj mam thawb tag nrho cov khaubncaws sab nraud povtseg rov qab mus rau hauv lub thav duab thiab rov ua dua cov ntsia hlau. Teem lub LCD ib sab rau qee qhov haujlwm. Ib qho me me ntawm cov kab xev kom meej meej nyob ib puag ncig ntawm tus ncej yuav pab daws qhov teeb meem no.

Kauj Ruam 4: Nrhiav DC-AC Inverter

CCFL xav kom muaj kev ncaj ncees tshwj xeeb hauv kev tsav tsheb. LCD inverters tuaj yeem pom ntawm EBay txog $ 12. Generic inverters yuav ua txoj haujlwm zoo xwb. Yog hais tias koj tab tom khaws ib lub vaj huam sib luag los ntawm lub laptop puas lossis lub monitor tawg, nrhiav lub rooj tsav xwm me me uas lub vaj huam sib luag ntsaws ncaj qha mus rau hauv. Koj tuaj yeem tshem tawm cov khoom sib txuas los muab cov xov hlau liab qab uas yooj yim rau ua haujlwm nrog. Cov hlua uas txuas rau DC hauv ib sab ntawm lub inverter yog qhov muaj txiaj ntsig tshaj plaws. Tshwj tsis yog tias koj tau ua tib zoo saib xyuas nrog lub vaj huam sib luag, AC hlua tseem yuav txuas nrog rau CCFL raj Hauv txoj kev xav, lub tshuab hluav taws xob yuav tsum sib raug zoo nrog CCFL nws yuav siv nrog. Qhov no feem ntau yuav txuas lub neej ntawm lub raj thiab lub rooj tsavxwm. Qhov no yuav tsis yog teeb meem rau hom phiaj xwm no, txawm li cas los xij. Tsuav tus inverter yog rau ib lub raj ntawm kwv yees li qhov loj me CCFL, nws yuav tsum ua haujlwm zoo xwb.

Kauj Ruam 5: Tsim kom muaj Voltage Divider Circuit

Hmoov tsis zoo, feem ntau cov tuam txhab tsis kam tso tawm cov ntaub ntawv hais txog lawv cov inverters. Qee qhov fiddling thiab ntsuas feem ntau yog qhov tsim nyog los txiav txim siab qhov ntsuas hluav taws xob ntawm lub inverter ua ntej nws tuaj yeem txuas rau siv. Yog tias koj tab tom siv lub LCD saib ua tiav, yooj yim rov ua nws dua, ntsaws nws thiab tig nws thiab hla qhov seem ntawm cov lus qhia no. Los ntawm kuv qhov kev sim kuv tau pom tias ntau tus neeg hloov pauv xav tias 12V+ cov tswv yim tsav lub inverter thiab ib puag ncig 5V+ rau "pab" thiab teeb tsa "dimming" qib. Txheeb cov ntawv txheeb cais no rau qee qhov kev taw qhia: https://www.lcdinverter.co.uk/MH-1405A04-spec.htm Los ntawm kuv qhov kev sim, cov kab hluav taws xob muaj zog heev thiab tuaj yeem lees txais nruab nrab ntawm 4.5 thiab 7 volts ntawm qhov ua kom pom thiab dim tus pin thiab ua haujlwm kom raug. Qhov siab tshaj 7 volts ib qho kev xav tsis txaus ntseeg yuav raug tso tawm. 12V DC lub zog qhov hluav taws xob tuaj yeem hloov pauv tau yooj yim rau lub zog inverter los ntawm kev siv hluav taws xob faib hluav taws xob. Hauv qhov hluav taws xob faib hluav taws xob, siv ob tus tiv thaiv kom poob qhov hluav taws xob raws li xav tau. Hauv Circuit no R1 tso qhov hluav taws xob 7V ces R2 ntxiv 5V. Ceeb toom tias 7V+5V = 12V. Cov txheej txheem hauv qab no qhia txog Circuit uas kuv siv los tsim cov hluav taws xob uas kuv xav tau los tsav kuv lub inverter. Rau ib qho inverter uas muaj peev xwm ua tau thiab thiab dim dim pins, txuas cov ntawd rau 5V+ tig lub vijtsam rau. Prototype koj lub Circuit Court siv lub khob cij. Ntsuas qhov hluav taws xob ntawm C thiab A; nws yuav tsum yog 12V+. Ntsuas qhov Voltage ntawm C thiab B thiab nws yuav tsum yog 5V+. Yog tias koj tau txais qhov txiaj ntsig hauv 10-20%, koj yuav tsum ua li cas. Yog hais tias koj xav tau kev pab hauv kev xaiv tus tiv thaiv rau koj qhov hluav taws xob tshwj xeeb, txheeb xyuas qhov Circuit Design Tutor. Qee cov lus qhia kom nco ntsoov:

• Yog tias qhov sib piv ntawm qhov sib piv ntawm cov resistors sib npaug rau qhov hluav taws xob nkag, koj tus qauv tsim yuav yooj yim dua. Piv txwv li Vin = 12V, piv ntawm resistors yog 50:70 lossis 5: 7 - 5+7 = 12.
• Nco ntsoov koj tuaj yeem yooj yim ntxiv cov resistors ua ke hauv kab ntawv los tsim ib tus neeg tawm tsam (nyeem ntawm Ohms Law rau kev pab ntawm no.
• Yog tias koj qhov hluav taws xob nkag yog 18V, R1 yuav tsum yog 130K Ohm, R2 yuav tsum yog 50K Ohm.

E1: 12V qhov chaw A: 12V+ B: 5V+ C: 12V-R1: 70K Ohm ResistorR2: 50K Ohm ResistorK1: SPST hloov

Kauj Ruam 6: Xeem Circuit

Ib lo lus ceeb toom ntawm no: Lub inverter tsim hluav taws xob siab heev. Thaum nws yog qhov qis dua amperage, nws tseem tuaj yeem ua qee qhov kev puas tsuaj. Tsis txhob xav txog kev tuav lub inverter thaum nws nyob. Hlawv, poob siab thiab tej zaum txawm tias tuag tuaj yeem tshwm sim. Yog tias koj lub inverter ua lub suab nrov nrov nrov, nws puas puas lossis qee yam tau txais qhov hluav taws xob ntau dhau. Tshem tawm txhua yam sai thiab rov txheeb xyuas koj cov hluav taws xob thiab cov xov hluav taws xob. Yog tias qhov ntsuas hluav taws xob raug thiab lub suab nrov txuas ntxiv, koj lub inverter feem ntau yuav puas. Nrhiav qhov hloov chaw. Cov inverters puas tau paub tias ua kom sov dhau thiab pib hluav taws me.

Kauj Ruam 7: Kaw lub Circuit Court

Rhais cov kab hluav taws xob - Kuv nyiam Ice Breaker Sours Gum thawv. Lawv pheej yig heev, kaw tus kheej, yooj yim txiav thiab tsuas yog qhov loj me rau cov phiaj xwm me.

Kauj Ruam 8: Ua kom tiav thiab Siv Lub Teeb

Kuv khaws kuv cov zaub los ntawm lub khoos phis tawj uas tsis ua haujlwm, yog li kuv muaj qhov zoo ntawm qhov feem ntau kuv xav tau ntawm kuv cov ntiv tes. Kuv disassembled phau ntawv rau qhov chaw thiab txuag ob peb qhov ua kom tiav kuv lub teeb. Kuv siv cov hauv qab no los ua kom pom kev zoo dua:

• thawj lub tsev nyob nrog hinges
• thav duab tshav kub

Kuv tau teeb tsa lub vijtsam rov qab ntawm tus ncej uas siv cov ntsiab lus mount uas twb muaj lawm. Qhov no ua tau yooj yim sawv. Kuv tsuas yog yuav tsum tawm tsam qhov hnyav sab nraub qaum kom lub vijtsam tsis txhob hla.

Kauj Ruam 9: Qee qhov txhaj tshuaj ntawm Lub Teeb hauv Kev Ua

Nov yog qee qhov kev txhaj tshuaj uas kuv tau siv lub teeb ci. Lub teeb tau tsom mus rau sab xis ntawm lub tsev pheeb suab teeb thiab yog lub hauv paus ntawm lub teeb rau feem ntau ntawm kev txhaj tshuaj. Kev txhaj tshuaj tau ua tiav, tab sis tsuas yog rau qhov sib npaug dub/dawb thiab sib txawv. nyem