Yuav Ua Li Cas Thiaj Li Flashing LED's ntawm Blank PCB: 5 Cov Kauj Ruam

2024 Tus sau: John Day | [email protected]. Kawg hloov kho: 2024-01-30 09:25

PCB yog lub npe luv rau "Printed Circuit Board". Ntawm PCB koj yuav A PCB muaj qhov uas koj tuaj yeem plam hauv cov khoom siv thiab ntawm qhov ntxeev sab, koj tuaj yeem txuas ob txhais ceg ntawm cov khoom siv txhawm rau ua kom lawv nyob hauv qhov chaw. Soldering kuj yog ib txoj hauv kev zoo heev los txuas cov khoom sib xyaw ua ke. Cov laug yog tus coj hluav taws xob zoo thiab nws yooj yim siv.

Hauv txoj haujlwm no, peb yuav siv PCB dawb paug thiab siv peb tus kheej txuas. Peb yuav siv lub capacitors, transistors thiab resistors ua ob 5mm ntsuab LEDs nyem ntawm lawv tus kheej, yam tsis muaj tus lej!

Khoom siv

• Soldering Iron nrog sawv ntsug
• Solder
• PCB dawb paug
• Peb-Tes Soldering Stand
• Jumper xov hlau
• 2 X 10K ohm resistors
• 2 X 560 ohm resistors
• 2X 2N3904 NPN transistors
• 2X 5mm Ntsuab LEDs
• 100 μF capacitors
• Hlau strippers thiab Clippers

Kauj Ruam 1: Kawm Paub Cov Txheej Txheem Soldering

Nws yog ib qho tseem ceeb uas koj paub yuav ua li cas txhawm rau ua ntej pib qhov haujlwm no. Txhawm rau npaj kom tau cov laug, koj yuav tsum paub tseeb tias koj cov hauv paus ntawm cov laug thiab cov khoom thiab cov cuab yeej xav tau thaum lub sijhawm txheej txheem txheej txheem.

Dab tsi yog Soldering?

Soldering yog txheej txheem ntawm kev ua kom yaj cov hlau tshwj xeeb uas paub tias yog siv cov hlau ua kom sov hu ua cov hlau yaj. Cov laug yog ua los ntawm cov hlau thiab cov hlau lead, tab sis qee cov neeg tsis muaj cov hlau lead yog ua los ntawm tooj liab thiab tin.

Ib feem ntawm cov hlau txuas

Cov hlau txuas muaj ob ntu tseem ceeb; qhov taub thiab tus pas nrig. Qhov taub yog qhov ua kom sov ntawm lub hauv ntej ntawm cov hlau; ib feem uas tau yaj cov laug. Qhov no tuaj yeem ua kom sov li 450 ° C (842 ° F). Nws yog ib qho tseem ceeb heev uas koj tsis txhob kov qhov taub nrog koj txhais tes. Thaum tso cov hlau, nco ntsoov muab tso rau hauv lub qhov rau ntawm cov hlau sawv ntsug. Cov hlau sawv yuav tsum tuaj nrog lub qhov tso rau hauv daim txhuam cev, yog tias tsis nrog daim txhuam cev. Xyuas kom koj ntub daim txhuam cev ua ntej pib. Qhov taub kuj tuaj yeem ua xeb tau yooj yim yog li peb yuav tsum tin qhov taub. Tinning txhais tau tias npog qhov taub nrog me ntsis ntawm cov laug. Qhov no pab tiv thaiv cov lus qhia los ntawm xeb uas tuaj yeem ua rau lub taub hlau puas.

Yuav ua li cas tshem cov laug (desoldering) los ntawm Circuit Court/board

Soldering, los ntawm txhua txoj kev, tsis yog qhov yooj yim tshaj plaws rau tus tswv thiab txawm tias qhov zoo tshaj plaws ntawm qhov zoo tshaj plaws tuaj yeem ua yuam kev. Txhawm rau txhim kho koj cov kev ua yuam kev thiab rov pib dua, koj yuav tsum paub yuav ua li cas thiaj li desolder. Txoj hauv kev zoo tshaj los ua qhov no yog siv lub npe hu ua lub twj tso kua mis. Txhawm rau siv lub twj tso kua mis soldering, ua kom sov lub lauj kaub qub uas koj tsis xav tau thiab tso nws tawm sai sai ua ntej lub lauj kaub txias.

Ntxuav lub ntsis

Thaum koj tau ua tiav cov tshuaj txhuam hniav, xyuas kom tseeb tias koj ntxuav thiab ntxig qhov taub. Txhawm rau ua qhov no, so koj lub taub hau hlau ntawm daim txhuam cev ntub ntawm lub hauv paus ntawm cov hlau txuas sawv ntsug. Qhov no yuav pab tshem tawm cov tshuaj ntau dhau uas tuaj yeem nyob ntawm qhov taub. Tom qab ntawd, xyuas kom tseeb tias koj rub lub taub. Txhawm rau ua qhov no, tsuas yog tuav tus laug ntawm qhov taub thiab cia nws npog cov hlau me ntsis. Tej zaum koj yuav tau rov ua cov txheej txheem ntau zaus ua ntej nws tau ua tiav.

Kauj Ruam 2: Tso Cov Cheeb Tsam hauv Lawv Txoj Haujlwm

Thaum koj tau ua tiav kev npaj koj lub chaw nres tsheb, tam sim no yog lub sijhawm los sau cov khoom xav tau rau txoj haujlwm no. Tom qab koj sib sau cov ntaub ntawv, pib muab tso rau hauv PCB siv cov qauv ua khob cij ua qauv qhia saum toj no. Ib qho tseem ceeb yuav tsum nco ntsoov yog cov laug cam muaj kev sib txuas sab hauv (lub zog thiab cov kab hauv av tau txuas nrog txhua tus thiab cov kab ib leeg txuas nrog. Ntawm PCB tab sis peb yuav tsum muab cov kab sib txuas no txuas.

Thaum tso cov khoom sib xyaw ua ke, nco ntsoov xyuas seb sab twg yog qhov tsis zoo thiab sab twg yog qhov zoo rau LEDs thiab capacitors. Qhov no yog qhov tseem ceeb vim tias ob qho khoom siv no muaj anode thiab cathode.

Kauj Ruam 3: Ua Kev Sib Txuas Choj

Ib kauj ruam kawg ua ntej peb pib siv cov laug; tus choj

Ua cov choj pab peb txuas ob (lossis ntau dua) cov khoom sib xyaw ua ke yam tsis muaj qhov muag ntau dhau. Qhov no pab peb tiv thaiv kev ua qhov txuas tsis tseem ceeb. Qhov no tuaj yeem tshwm sim thaum koj lub lauj kaub yuam kev kov lwm qhov (uas koj tsis xav tau txuas rau) thaum nws tseem kub.

Txhawm rau ua tus choj, nqa ob txhais ceg ntawm ob yam uas nyob ib sab ntawm nws ib leeg thiab ntswj lawv me ntsis kom nws nyob hauv qhov chaw. Thaum koj ua qhov sib tw, peb tuaj yeem txav mus rau ntu tom ntej; soldering.

Kauj ruam 4: Soldering

Tam sim no tias peb muaj txhua yam npaj txhij mus, txhua yam uas tau tso tseg yog qhov muag thiab ua qhov sib txuas. Nco ntsoov tshem koj lub chaw haujlwm ua ntej pib txhawm rau tiv thaiv kev raug mob. Nco ntsoov tias tsis muaj xov hlau uas ib tus neeg tuaj yeem hla tau.

Soldering tus tivthaiv ob txhais ceg

Kaw koj lub rooj tsav xwm PCB kom sawv ntsug thiab tau txais koj cov hlau. Tuav cov hlau los ntawm tus pas nrig hauv tes, thiab tus neeg muag khoom nyob rau lwm qhov. Hover qhov taub ntawm tus laug qhov twg koj xav kom nws yaj thiab maj mam kov lub taub hau ntawm koj cov hlau mus rau lub laug. Cov laug yuav tsum yaj sai sai thiab pas dej ua ke nyob ib ncig ntawm txhais ceg ntawm cov khoom ua ntej txias thiab ua kom tawv.

Soldering tus choj

Soldering cov khoom sib txuas tuaj yeem yooj yim thiab nyuaj. Txhua yam koj yuav tsum tau yaj me ntsis ntawm cov laug thiab tso nws mus rau qhov txuas thiab cia nws txias, tab sis qhov ntawd tsis txaus los tsim kev sib txuas zoo. Qhuav ob peb tee ntxiv ntawm cov laug nyob ib puag ncig qhov txuas; txaus los nkaum qhov kev sib txuas (ob txhais ceg sib tw).

Soldering cov xov hlau

Soldering cov xov hlau yog qhov nyuaj me ntsis ntau dua li cov khoom siv tab sis ntawm no yog qee cov lus qhia koj tuaj yeem siv los pab:

• Nco ntsoov tias koj tshem tawm cov yas thaiv kom txaus uas koj yuav tsis yaj cov yas es tsis txhob siv cov laug
• Khoov xaim ntawm lub hauv ntej kom cov xaim nyob hauv qhov chaw
• Ua kom ze rau xaim li koj tuaj yeem ua tau nrog cov hlau thiab tom qab ntawd nqa cov laug txuas rau hauv

Cov av thiab lub zog ntsia

Txij li PCB tsis muaj kev sib txuas, nws txhais tau tias tsis muaj lub zog lossis hauv av. Txhawm rau ua peb tus kheej lub zog thiab kev tsheb nqaj hlau hauv av, peb yuav tsum tso cov laug rau hauv txhua lub qhov ntawm kab uas tau xaiv. Thaum tag nrho cov qhov tau ua tiav, tso me ntsis ntawm cov kab laug sab nruab nrab ntawm lawv txhawm rau txuas lawv ua ke. Ua qhov no rau txhua qhov ntawm txoj kab hluav taws xob thiab rov ua dua rau txoj kev tsheb nqaj hlau hauv av.

Txuas cov roj teeb Clip

Txuas lub roj teeb clip yog yooj yim. Seem cov xov hlau kom txaus kom koj tsis yaj cov yas. Tom qab ntawd, coj tus xov tooj zoo ntawm daim kab xev (liab) thiab tuav nws mus rau txoj kev tsheb nqaj hlau ntawm koj lub rooj tsavxwm uas siv cov yeeb yaj kiab ntawm tus pab sawv ntsug. Tom qab ntawd poob me ntsis ntawm cov laug rau ntawm xaim. Rov ua dua nrog cov xaim tsis zoo (dub) ntawm txoj kev tsheb nqaj hlau.

Ntxuav

Thaum koj tau siv qhov kev sib txuas, txiav tawm ob txhais ceg ntawm cov khoom siv siv cov clippers. Xyuas kom koj tau ceev faj vim ob txhais ceg qee zaum ya mus.

Kauj Ruam 5: Tiav Khoom

Lub tswv yim zuag qhia tag nrho ntawm txoj haujlwm no yog kom muaj cov teeb ci LED. Qhov no yuav tshwm sim nrog kev pab ntawm cov capacitors thiab transistors. Thiab qhov ntawd yog yuav ua li cas thiaj li ua rau lub teeb ci LEDs ntawm PCB pawg thawj coj saib. Thaum ib lub LED qhib, lub transistor yuav xa tam sim no mus rau lub capacitor, uas yuav khaws nws li ob peb feeb kom txog thaum thawj LED tua ua ntej tso nws tawm thiab ua kom lub zog LED thib ob. Cov txheej txheem no rov ua dua rau lwm qhov LED ib yam. Qhov ntawd yog qhov laj thawj ntawm kuv txoj haujlwm. Vam tias koj muaj kev lom zem thaum ua nws!