SMD Soldering Practice Kit, lossis Kuv Yuav Kawm Li Cas Kom Tsis Txhob Txhawj Xeeb Thiab Nyiam Cov Khoom Siv Suav Suav Pheej Yig: 6 Kauj Ruam

2024 Tus sau: John Day | [email protected]. Kawg hloov kho: 2024-01-30 09:26

Qhov no tsis yog Cov Lus Qhia txog kev siv tshuaj txhuam. Nov yog Cov Lus Qhia txog yuav tsim cov khoom siv Suav pheej yig li cas. Cov lus hais yog tias koj tau txais yam koj them rau, thiab ntawm no yog yam koj tau txais:

• Cov ntaub ntawv tsis zoo.
• Cov lus nug tsis zoo.
• Tsis muaj kev txhawb nqa.

Yog li vim li cas thiaj yuav thiab ua ib qho?

• Super pheej yig.
• Nthuav nthuav Circuit.
• Kawm paub daws teeb meem!

Yog tias koj saib kuv lwm Cov Lus Qhia, koj pom tias kuv tsim thiab muag cov khoom siv. Vim li cas kuv thiaj yuav siv sijhawm thiab dag zog los sau cia lwm tus? Kuv tsis paub tseeb, tab sis kuv ntxub lub tswv yim ntawm ib tus neeg sim ib qho ntawm cov no thiab tom qab ntawd muab khoom siv hluav taws xob vim qhov kev paub tsis zoo. Cov khoom siv hluav taws xob yog qhov nyuaj txaus yam tsis tau ntuav cov pawg tsis meej pem hauv qhov sib xyaw. Thiab tej zaum, yog tias koj tau nuv, koj yuav yuav ib qho ntawm kuv.

Cov lus qhia no tshwj xeeb rau "SMD Rotating LED SMD Components Soldering Practice Board Skill Training Kit" los ntawm Bangood, tab sis lub hauv paus ntsiab lus siv rau txhua qhov haujlwm. Muaj ntau cov khoom siv tawm muaj, tab sis kuv nyiam qhov no vim tias:

• Xyaum thaj tsam cais los ntawm kev ua haujlwm hauv Circuit Court.
• Kev nthuav qhia Circuit nthuav (555 timer thiab Decade Counter).
• Cov ntaub ntawv siv tau zoo nyob tom qab.

Kauj Ruam 1: Qhov Chaw

"Tag nrho cov ntsiab lus ntawm [cov khoom siv qis] tau ploj … yog tias koj [tsis sau nws]! Vim li cas koj thiaj tsis qhia rau ntiaj teb, eh?"

Txhawm rau ua tiav txoj haujlwm tsim hluav taws xob, feem ntau koj yuav xav tau cov phiaj xwm thiab daim nqi ntawm cov khoom (BOM). Cov txheej txheem qhia koj li cas hauv Circuit Court ua haujlwm, thiab BOM qhia koj tias cov khoom siv tau siv dab tsi. Cov khoom siv los ntawm Bangood tuaj nrog tsis muaj ntaub ntawv pov thawj, thiab lub vev xaib tsuas muaj ib feem txheej txheem nrog cov lej siv tsis raug.

Cov ntaub ntawv zoo tshaj plaws uas kuv tau pom los ntawm Ebay cov npe uas muab cov phiaj xwm thiab cov phiaj xwm phiaj xwm nrog cov ntawv pov thawj thiab cov txiaj ntsig ntawm nws: https://www.ebay.com/itm/2Sets-DIY-SMD-SMT-Compone… Thaum nws muaj BOM, tsis muaj cov lej siv ntawm nws, yog li nws tsis muaj txiaj ntsig zoo rau peb. Cov duab kos los ntawm tes yog ob qho tib si txawv thiab qhia paub.

Qhov zoo tshaj plaws BOM Kuv tau pom yog los ntawm lub rooj sib tham tshaj tawm https://forum.banggood.com/forum-topic-240555.html), thiab txawm tias nws tau tawg me ntsis, yog li ntawm no yog kuv cov lus sib xyaw:

Paub tias rau thaj chaw xyaum, qhov txiaj ntsig tsis yog mater, tsuas yog pob loj. Yog tias koj txiav txim siab ua thaj chaw xyaum ua ntej, nco ntsoov tso tseg cov khoom siv uas xav tau rau kev ua haujlwm, uas yog:

R48, R49, C27, C28, thiab R61-64

Kauj ruam 2: Lub zog

"Koj qhov nruab nrab Ruskie tsis siv pov tseg yam tsis muaj phiaj xwm," yog li peb tab tom tsim thiab ntsuas qhov kev ua haujlwm hauv kauj ruam. Ua ntej tshaj, peb yuav tsum tau muab lub zog txheeb cais. Bangood lub vev xaib teev 3-12V, tab sis kuv tsis ntseeg yog 555 lossis CD4017 yuav ua haujlwm tau zoo ntawm 3V. Kuv siv lub zog 5V zoo, tab sis kev txiav ib qho qub USB cable, xov tooj them lub xov tooj, lossis siv lub roj teeb 9V kuj tseem yog qhov zoo.

Nco tseg: Kev siv nrog 3V lithium, 555 feem ntawm kev ua haujlwm hauv Circuit Court, tab sis tsis yog Decade Counter.

Kauj Ruam 3: 555 Timer

Lub 555 Timer tau lees tias yog "kev sib koom ua ke nrov tshaj plaws tau tsim" thiab yuav tsum yog ib feem ntawm cov cuab yeej uas nyiam tshaj plaws. Thawj ntu ntawm Wiki tsab xov xwm ua rau nyeem tau zoo:

Hauv qhov kev sib tham no, nws muab lub teeb liab tsis tu ncua li ntawm 3 txoj hauv kev ib pliag kom nyem lub LED. Txhua lub mem tes yuav tsum teeb LED D1, thiab lub sijhawm tiag tiag ntawm kev mus thiab tawm mus yog tswj los ntawm kev tiv thaiv ntawm R48 & R49 thiab lub peev xwm ntawm C27. Koj tuaj yeem xam lub voj voog siv cov lej, lossis tsuas yog ntsaws qhov tseem ceeb ntawm

1. Solder U1, ua tib zoo saib tus pin 1 kev taw qhia. Qhov no feem ntau yog qhia ntawm tus ntiv tes los ntawm tus lej lossis txiav thiab qhov sib faib ntawm cov kab lo lo ntxhuav. Txheeb cov ntaub ntawv yog tias koj tsis paub meej:
2. Solder R48 ("205"), R49 ("103"), thiab R50 ("471" lossis "331"). Cov neeg tiv taus yog xim dub thiab tsis muaj kev taw qhia yog li tuaj yeem muab muag rau ob qho tib si.
3. Solder C27 thiab C28. Ceramic resistors yog xim av thiab tsis muaj kev taw qhia lossis tus nqi cim.

4. Solder D1 LED, ua tib zoo saib xyuas kev taw qhia.

   • Cov cim sib txawv, tab sis feem ntau cov xim ntsuab ntawm lub lens qhia txog cov cathode, lossis sab tsis zoo uas sib thooj rau cov kab tuab ntawm cov silkscreen.
   • Hauv qab ntawm LED yuav muaj tus xub lossis tee uas taw tes rau lub cathode.
   • Feem ntau cov ntsuas ntsuas muaj hom diode uas yuav pab txheeb xyuas qhov sib txawv thiab xim ntawm LED.
5. Txuas koj lub zog thiab ua kom lub zog muaj zog.

Yog tias koj tsis tau txais tos los ntawm qhov ntsais ntsais LED sai, tsis txhob poob kev ntseeg. Tias yog vim li cas kuv nyob ntawm no, thiab koj nyob ntawm no.

1. Pom qhov muag (nrog kev nthuav dav yog tias koj muaj nws) txhua qhov sib koom ua ke thiab rov ua dua ib tus neeg ua phem.
2. Txheeb xyuas qhov kev taw qhia ntawm U1 thiab D1.
3. Nrog koj lub ntsuas 'meter', txheeb xyuas koj muaj kwv yees li 5V ntawm lub hwj huam khoom thiab tias qhov sib txawv yog qhov raug (liab zoo, dub tsis zoo, ntsuas qhov nyeem tau zoo).

4. Nrog ntau lub ntsuas cua dub nyob ntawm qhov tsis zoo, tso cov tshuaj soj ntsuam liab rau sab saum toj ntawm LED.

   1. Yog tias koj tau txais qhov kev caij tsheb kauj vab, 555 tab tom ua haujlwm thiab koj cov LED xav tsis thoob (cov hlua txuas lossis kev taw qhia).
   2. Yog tias koj tsis tau txais qhov hluav taws xob, tso lub ntsuas liab rau U1 tus pin 8 (sab laug sab saud), thiab saib txog 5V. Yog tias koj tsis tau txais qhov hluav taws xob nyob ntawd, rov qab mus thiab tshuaj xyuas koj lub zog thiab cov khoom sib txuas.

   3. De-energize Circuit thiab tshawb xyuas txuas ntxiv (hom beep) ntawm:

      1. U1 tus pin 8 thiab lub zog fais fab zoo.
      2. U1 tus pin 1 (hauv qab tus pin sab laug) thiab lub hwj huam tsis zoo.
5. Yog tias txhua yam ua tsis tiav, tsis txhob tso tseg. Siv daim duab kaw thiab tshaj tawm ib yam dab tsi hauv cov lus kom tau txais kev pab.

Kauj Ruam 4: Xyoo Kaum Ob Hlis

CD4017 lub xyoo caum txee yog lwm qhov zoo nkauj tsim nyog paub txog. Nws yuav siv lub moos teeb liab los ntawm 555 lub sijhawm thiab ua lub teeb ib ntawm kaum LEDs ib zaug. Cia peb xaim nws nrog tsuas yog ib qho LED rau pib:

1. Solder U2, ua tib zoo saib xyuas kev taw qhia ib yam li 555 nti. Yog tias tsis ntseeg, tshawb xyuas cov ntaub ntawv:
2. Solder R51 ("331" lossis "471") nyob rau hauv qhov chaw.
3. Solder D2 nyob rau hauv qhov chaw raug raws li ua ntej.
4. Lub zog hluav taws xob nce thiab saib D2 ntsais ib zaug rau txhua 10 ntsais muag ntawm D1.

Yog tias koj tsis tau txais D2 kom ntsais muag, teeb meem tua yeej ib txwm zoo ib yam li ua ntej:

1. Pom qhov muag (nrog kev nthuav dav yog tias koj muaj nws) txhua qhov sib koom ua ke thiab rov ua dua ib tus neeg ua phem.
2. Txheeb xyuas qhov kev taw qhia ntawm U2 thiab D2.
3. Nrog koj lub ntsuas 'meter', txheeb xyuas koj muaj kwv yees li 5V ntawm lub hwj huam khoom thiab tias qhov sib txawv yog qhov raug (liab zoo, dub tsis zoo, ntsuas qhov nyeem tau zoo).

4. Nrog rau ntau lub ntsuas cua dub nyob ntawm qhov tsis zoo, tso qhov kev sojntsuam liab ntawm lub positve ncoo ntawm LED D2.

   1. Yog tias koj tau txais kev caij tsheb kauj vab, CD4017 tab tom ua haujlwm thiab koj cov LED xav tsis thoob (cov hlua txuas lossis kev taw qhia).
   2. Yog tias koj tsis tau txais qhov hluav taws xob, tso lub ntsuas liab rau U2 tus pin 16 (sab laug sab saud), thiab saib txog 5V. Yog tias koj tsis tau txais qhov hluav taws xob nyob ntawd, rov qab mus thiab tshuaj xyuas koj lub zog thiab cov khoom sib txuas.

   3. De-energize Circuit thiab tshawb xyuas txuas ntxiv (hom beep) ntawm:

      1. U2 tus pin 16 thiab lub zog fais fab zoo.
      2. U2 tus pin 8 (hauv qab txoj cai tus pin) thiab lub hwj huam tsis zoo.
5. Yog tias txhua yam ua tsis tiav, tsis txhob tso tseg. Siv daim duab kaw thiab tshaj tawm ib yam dab tsi hauv cov lus kom tau txais kev pab.

Yog tias txhua yam zoo, koj tuaj yeem xau qhov seem LEDs/resistors nyob hauv lub voj voog, lossis txav mus rau ntu tom ntej.

Kauj ruam 5: Transistor Hloov

Lub xyoo caum txee thiab 555 lub voj voog yog qhov zoo rau kev tsav tsheb thiab ib qho LED, tab sis kom tsav ntau lub LEDs, koj xav tau kev pab me ntsis. Nov yog qhov twg transistors, lwm qhov zoo ntxiv rau koj lub cuab yeej kev paub, tuaj rau hauv. Ib zaug ntxiv, nyeem wiki me ntsis yog qhov zoo:

Rau lub voj voog no, "moos tawm" teeb liab ntawm CD4017 tau siv rau lub hauv paus ntawm transistor (dhau los ntawm tus tiv thaiv thiab diode) uas ua rau tso cai tam sim no ntws los ntawm tus neeg khaws khoom mus rau tus xa tawm. Qhov no yuav tsum tig plaub lub kaum LEDs rau tsib teev mus, thiab tawm rau tsib.

1. Solder D1 (txiv kab ntxwv nrog dub kawg) nyob rau hauv qhov chaw nrog qhov kawg dub (cim cathode) nqes kom haum cov kab lo lo ntxhuav tuab tuab kab.
2. Solder R61 (dub "103") saum D1.
3. Solder Q1 (dub nrog peb ob txhais ceg)..
4. Solder D16 LED saib polarity.
5. Solder R65 (dub "471" lossis "331").

Fais fab lub Circuit Court thiab soj ntsuam LED D16 lub voj voog. Yog tias nws tsis yog teeb pom kev zoo, koj paub qhov niaj hnub ua:

1. Pom qhov muag (nrog kev nthuav dav yog tias koj muaj nws) txhua qhov sib koom ua ke thiab rov ua dua ib tus neeg ua phem.
2. Txheeb xyuas qhov kev taw qhia ntawm D1 thiab D16.

3. Nrog ntau lub ntsuas cua dub ntsuas ntawm qhov tsis zoo lub ncoo, tso lub liab sojntsuam rau ntawm lub hauv paus "b" tus pin ntawm lub transistor (sab laug sab laug, saib duab) kom pom tias 5V lub teeb liab caij tsheb kauj vab.

   Yog tias tsis muaj lub teeb liab, txav lub teeb liab mus rau lub hauv paus ntawm D12 txhawm rau nrhiav lub teeb liab. Yog tias muaj lub teeb liab, lub diode yuav rov qab, lossis lub transistor yuav yog PNP (nws tshwm sim rau kuv). Luv hla D12 nrog xaim lossis daim kab xev luv. Yog tias LED teeb, hloov qhov kev taw qhia ntawm D12

4. Yog tias txhua yam ua tsis tiav, tsis txhob tso tseg. Siv daim duab kaw thiab tshaj tawm ib yam dab tsi hauv cov lus kom tau txais kev pab.

Wow, koj ua tau. Rov qab mus thiab ua kom tiav thiab nco ntsoov nyem lub pob "Kuv Ua Nws" yog li kuv paub qhov no tau pab lwm tus!

Kauj Ruam 6: Me ntsis Ranting

Koj yuav pom tias ob qho ntawm kuv lub LED xiav tau ntsais ntawm lub sijhawm sib cais, thiab ob ntawm kuv ziener diodes nyob tom qab. Kuv yuav piav qhia me ntsis ntxiv txog "koj tau txais yam koj them rau". Kuv siv sijhawm ze li ib teev los tshuaj xyuas lub transistor Circuit vim tias LED tsis ntsais muag. Kuv tau sim ob peb yam sib txawv ntawm tus tiv thaiv R61 kom pom tias qhov ntawd pab tau, txawm tias luv luv nws tawm kom tsis muaj txiaj ntsig. Nws tsuas yog thaum kuv luv D12 tawm tias lub Circuit Court pib ua haujlwm! Yuav ua li cas yog?

• Hloov D12 rau lwm qhov? "Tsis ua haujlwm".
• Kos polarity ntawm cov ntaub ntawv? "Tsis ua haujlwm".
• Muab D12 rov qab? Ua haujlwm, tab sis vim li cas?
• Puas yog Q1 yog NPN, vim nws tau coj zoo li PNP transistor? "Yeee Haaaaaaaaa".

Nov yog qhov uas lwm qhov ntawm kuv cov khoom siv Suav pheej yig tuaj yeem ua haujlwm, LCR meter, uas tau lees tias nws yog PNP tiag. Kuv qhib kuv lwm cov khoom siv thiab nws muaj NPNs. Mus daim duab. Yog li kuv tso ob PNPs nrog rau diodes thim rov qab, thiab ob NPNs nrog diodes raug, thiab bingo, Kuv tau txais lub teeb hloov pauv. Txiv qaub!

Tam sim no, yog tias koj xav tias Bangood cov neeg siv khoom yuav tau pab kuv nrog qhov ntawd, hmoov zoo. Muaj teeb meem zoo li ntawd nrog ib qho ntawm kuv cov khoom siv, koj yuav tau txais kev pab. Qhov ntawd tsuas yog nws yog SMD Kev Sib Tw. Rau qhov kuv tus phooj ywg, koj nyob ntawm koj tus kheej. Ib yam li cov khoom siv Suav pheej yig.