Cov cuab yeej xws li cov hlau nplaum yog qhov tseem ceeb rau cov kws tshaj lij xov tooj cua, tab sis cov neeg nyob deb ntawm cov khoom siv hluav taws xob thiab cov khoom siv tsis xav tias nws yog qhov tsim nyog. Qee zaum cov xwm txheej tshwm sim uas tsuas yog kho tau nrog kev pab ntawm cov cuab yeej no, thiab yog tias nws tsis nyob ntawd, yuav ua li cas? Yog tias qhov teeb meem yog ib zaug, ces tsis tas yuav mus rau lub khw muag khoom ze tshaj plaws thiab yuav khoom kim heev. Koj tuaj yeem siv zog me ntsis thiab, nrog kev pab los ntawm cov khoom siv yooj yim, sib sau ua ke ib qho khoom siv hauv tsev. Muaj ntau txoj kev xaiv rau kev sib sau cov cuab yeej no - xav txog qee qhov ntawm lawv.
khoom siv los ntawm tus resistor
Qhov no yog ib qho yooj yim heev tab sis tsis tshua muaj kev ntseeg siab. Hauv tsev, nws tuaj yeem siv ntau txoj hauv kev. Nyob ntawm tus qauv tsim thiab lub zog, lawv tuaj yeem muab cov microelectronics mus txog lub laptops. Ib lub cuab yeej loj txawm tso cai rau koj los ua lub tank lossis lwm yam khoom loj. Xav txog yuav ua li cas los ua ib tug soldering hlau nrog koj tus kheej tes.
Lub Circuit Court yog qhov nthuav nyob rau hauv uas tus resistor haum rau lub hwj chim yog siv los ua lub rhaub. Nws tuaj yeem yog PE lossis PEV. Lub tshuab cua sov yog siv los ntawm tsev neeg lub network. Cov dampening resistances no ua rau nws muaj peev xwm daws tau cov teeb meem ntawm ntau yam teev.
Peb suav suav
Ua ntej txav mus rau kev sib dhos, qee qhov kev suav yuav tsum tau ua. Yog li, rau kev tsim cov khoom siv nrog cov khoom cua sov los ntawm cov resistors, nws yog txaus kom rov qab tau Ohm txoj cai los ntawm lub tsev kawm ntawv cov chav kawm physics thiab lub hwj chim formula.
Piv txwv li, koj muaj qhov tsim nyog PEVZO hom nrog tus nqi nominal ntawm 100 ohms. Koj tab tom yuav tsim ib lub cuab yeej raws li nws siv rau hauv cov khoom siv hluav taws xob hauv tsev. Nrog kev pab ntawm daim ntawv koj tuaj yeem yooj yim xam cov tsis. Yog li, ntawm qhov tam sim no ntawm 2.2 A, cov hlau ua hauv tsev yuav siv 484 watts ntawm lub zog. Qhov no yog ntau heev. Yog li ntawd, nrog kev pab los ntawm kev tiv thaiv-damping ntsiab, nws yog ib qho tsim nyog los txo qhov tam sim no los ntawm ib qho ntawm plaub. Tom qab ntawd, qhov taw qhia yuav txo qis rau 0.55 A. Qhov hluav taws xob thoob plaws peb cov resistor yuav nyob rau hauv 55 V, thiab nyob rau hauv lub tsev network - 220 V. Tus nqi ntawm quenching kuj yuav tsum yog 300 Ohms. Raws li cov khoom no, lub capacitor rau qhov hluav taws xob txog li 300 V yog qhov tsim nyog, nws lub peev xwm yuav tsum yog 10 uF.
Soldering hlau 220V sib dhos
Txhua tus tooj liab liab ntawm qhov loj me yog pom zoo ua tus pas nrig. Nws yuav tsum haum rau hauv lub qhov ntawm lub resistor nrog me ntsis clearance li sai tau. Thaum sib dhos, sau nws nrog silicate kua nplaum.
Tej zaum cov kua nplaum yuav ua rau cov cua sov hloov me ntsis, tab sis nws yuav ua rau lub cev ntawm cov pas nrig thiab cov cua sov. Qhov no yuav tiv thaiv lub hauv paus ceramic ntawm cov resistor los ntawm qhov ua tau tawg.
Lwm txheej ntawm cov kua nplaum yuav tiv thaiv rov qab rau hauv lub pob qhov tseem ceeb no. Cov cores ntawm cov xov hlau yuav raug coj tawm los ntawm lub qhov hauv lub raj-qws. Daim duab no yuav pab koj nkag siab tias yuav ua li cas thiaj li ua tau cov hlau soldering txhim khu kev qha, zoo thiab pheej yig, nrog rau kev nyab xeeb.
Kom tsis txhob muaj teeb meem, nws yog qhov zoo dua los ntxiv dag zog rau lub rwb thaiv tsev qhov twg cov cores yuav txuas nrog lub rhaub. Rau qhov no, cov xov asbestos yog tsim nyog, nrog rau lub tes tsho ceramic ntawm rooj plaub. Tsis tas li ntawd, koj tuaj yeem siv cov roj hmab elastic nyob rau hauv qhov chaw uas cov hlua hluav taws xob nkag mus rau hauv tus kov.
Nws yooj yim heev los ua cov hlau nplaum nrog koj tus kheej tes. Nws lub zog yuav txawv. Qhov no tsuas yog hloov lub capacitor hauv Circuit Court.
Mini soldering hlau
Nov yog lwm lub voj voog yooj yim. Nrog rau cov cuab yeej no, koj tuaj yeem ua haujlwm nrog ntau yam khoom siv me me lossis qhov chaw. Nrog nws, koj tuaj yeem yooj yim dismantle thiab solder me me xov tooj cua Cheebtsam thiab microcontrollers. Txhua craftsman muaj cov ntaub ntawv los tsim cov khoom no. Koj yuav kawm yuav ua li cas ua ib tug soldering hlau, thiab ces koj yuav yooj yim sib sau ua ke los ntawm improvised cov ntaub ntawv. Lub hwj chim yuav muab los ntawm lub tsev transformer - ib qho twg los ntawm cov duab scan ntawm lub qub TV yuav ua. Ib daim ntawm 1.5 hli tooj liab hlau yog siv los ua sting. Ib daim 30 hli tsuas yog tso rau hauv cov khoom cua sov.
Ua lub hauv paus raj
Qhov no yuav tsis yog lub raj xwb, tab sis lub hauv paus ntawm cov khoom cua sov. Nws tuaj yeem dov los ntawm tooj liab ntawv ci. Tom qab ntawd nws yog them nrog ib txheej nyias ntawm ib qho tshwj xeeb hluav taws xob insulating compound. Qhov no muaj pes tsawg leeg kuj yog heev yooj yim thiab yooj yim ua. Txaussib tov talc thiab silicate kua nplaum, lubricate lub raj thiab qhuav nws tshaj roj.
Ua kom sov
Txhawm rau kom peb cov hlau ua tes ua kom ua tau zoo, koj yuav tsum tau cua sov rau nws. Peb yuav ua qhov no los ntawm ib daim ntawm nichrome hlau. Txhawm rau daws qhov teeb meem, peb muab 350 hli ntawm cov khoom siv nrog lub thickness ntawm 0.2 hli thiab cua nws nyob ib ncig ntawm lub raj npaj. Thaum koj cua cov hlau, nteg cov lem nruj heev ua ke. Tsis txhob hnov qab tawm ncaj kawg. Tom qab winding, smear lub kauv nrog ib tug sib tov ntawm talc thiab kua nplaum thiab cia nws qhuav kom txog thaum nws tag nrho ci.
Ua tiav qhov project
theem thib peb yog kev rwb thaiv tsev ntxiv thiab kev teeb tsa ntawm lub tshuab cua sov hauv cov ntaub ntawv tin.
Txoj haujlwm no yuav tsum ua tib zoo ua. Qhov kawg ntawm cov nichrome hlau uas tawm ntawm peb lub rhaub yuav tsum tau kho nrog cov khoom siv insulating. Tsis tas li ntawd, sib tov txhua qhov kab noj hniav uas yuav tshwm sim los ntawm qhov tsis muaj kev saib xyuas.
Cov txheej txheem tsim khoom ntawm cov cuab yeej no suav nrog kev tiv thaiv lub tshuab ua kom sov nrog cov khoom siv hluav taws xob tiv thaiv hluav taws xob thiab rub cov hlua los ntawm lub qhov hauv cov hlau tuav. Ntsia qhov kawg ntawm cov xaim hluav taws xob mus rau lub tshuab cua sov, tom qab ntawd ua tib zoo insulate txhua yam.
Nws tseem yuav ntim cov khoom cua sov rau hauv cov ntaub ntawv tin, thiab muab tso rau hauv qhov sib npaug.
Tam sim no koj tuaj yeem siv cov khoom no. Yog tias koj ua txhua yam zoo, koj tau txais ib qho zoo heev soldering hlau, sib sau ua ke nrog koj tus kheej tes. Nrog nws, kojkoj yuav tuaj yeem ua tau ntau lub voj voog nthuav dav.
Miniature non-wire resistor tsim
Cov cuab yeej no haum rau cov haujlwm me me. Nws yog qhov yooj yim heev rau solder ntau yam microcircuits, SMD qhov chaw nrog nws. Lub tswv yim ntawm cov khoom yog yooj yim, yuav tsis muaj teeb meem nrog kev sib dhos.
Peb xav tau MLT hom resistor los ntawm 8 txog 12 ohms. Lub zog dissipation yuav tsum mus txog 0.75 watts. Kuj tuaj yeem nqa cov ntaub ntawv tsim nyog los ntawm tus cwj mem tsis siv neeg, tooj liab hlau nrog ntu ntu ntawm 1 hli, ib daim hlau hlau 0.75 hli tuab, ib daim ntawm textolite, ib lub xaim nrog cov rwb thaiv tsev kub.
Ua ntej koj sib sau cov hlau no nrog koj tus kheej txhais tes, tev cov xim ntawm lub cev ntawm cov resistor.
Qhov no yooj yim ua nrog rab riam lossis kua nrog acetone. Tam sim no koj tuaj yeem muaj kev nyab xeeb txiav tawm ib qho ntawm cov resistor coj. Qhov twg qhov txiav tau ua, laum ib lub qhov, thiab tom qab ntawd ua tiav nrog lub txee. Lub sting yuav mounted rau ntawd.
Thaum pib, txoj kab uas hla ntawm lub qhov tuaj yeem yog 1 hli. Tom qab ua tiav nws nrog lub txee, lub sting yuav tsum tsis txhob cuam tshuam nrog lub khob. Nws yuav tsum yog nyob rau hauv lub resistor vaj tse. Ua ib qho tshwj xeeb zawj rau sab nraum lub khob. Nws yuav tuav tus neeg xyuas pib, uas tseem yuav tuav lub rhaub.
Tam sim no peb them nyiaj. Nws yuav muaj peb qhov me me.
Los ntawm sab dav, txuas cov hlau xaim mus rau nws, hauv nruab nrab qhov rooj plaub ntawm tus kov yuav raug kho. Qhov thib ob seem tso zis yog ntsia rau ntawm qhov nqaimresistor.
Ua ntej siv cov cuab yeej no, qhwv lub hau nrog ib txheej nyias ntawm cov khoom siv insulating. Qhov ntawd yog qhov yooj yim thiab yooj yim npaum li koj tau txais lub zog qis 40W mini soldering hlau.
Ib txwm, cov chaw kho mob hnyav thiab lub tshuab cua kub tau muab rau cov kws tshaj lij niaj hnub no, tab sis cov cuab yeej no kim heev thiab tsuas yog muaj rau cov tswv los ntawm cov chaw pabcuam rau kev kho computers, laptops thiab mobile devices. Cov cuab yeej siv no tsis tuaj yeem nkag mus rau tus tswv tsev vim nws tus nqi. Peb cia siab tias tsab xov xwm no yuav qhia koj yuav ua li cas ua ib tug soldering hlau nrog koj tus kheej tes sai thiab yooj yim.
