Tej zaum koj yuav tau pom ib qho me me - ib capacitor {}}}}}}}}}}}}}}}}} tso nrog cov khoom siv rov qab. Tej zaum koj yuav xav tsis thoob li. Qhov no yog ib qho kev sib xws thiab cov txheej txheem tseem ceeb hauv cov qauv hluav taws xob.
Qhov laj thawj tseem ceeb los tso lub capacitor ntawm cov relay chev yog yooj yim. Nws nres qhov txaus ntshai voltage spikes. Qhov teeb meem no hu ua "rov qab EMF" lossis "inductive rov qab." Nws tshwm sim lub sijhawm koj tig lub relay tawm.
Qhov kev nce hluav taws xob no tuaj yeem ncav cuag ntau pua ntawm volts. Qhov ntawd tau yooj yim txaus los rhuav tshem cov khoom sib txawv uas tswj cov relay. Xav tias microcontrollers lossis kev tsav tsheb. Lub capacitor ua haujlwm zoo li lub valve kev nyab xeeb. Nws nqus tau lub zog puas tsuaj.
Cov lus qhia no ua rau koj ua tiav ntawm cov physics tom qab qhov teeb meem no. Koj yuav kawm yuav ua li cas caportitor dolves nws. Koj tseem yuav pom yuav ua li cas xaiv thiab nruab qhov yog rau koj qhov kev voj voog.
Qhov teeb meem:Rov qab tsim cov pheeb suab voltages spikes thaum muab tua.
Kev daws:Lub capacitor teeb hla ntawm coil kev ua phem no cov teeb meem phem.
Cov txiaj ntsig:Nws tiv thaiv koj txoj kev tswj hwm hluav taws xob los ntawm kev puas tsuaj thiab tsis ua tiav.
Qhov "Yuav ua li cas - rau":Koj yuav kawm xaiv cov captort txoj cai thiab nruab nws rau siab tshaj plaws.
Lub zais txaus ntshai: inductive rov qab
Txhawm rau kom nkag siab txog kev daws teeb meem, peb yuav tsum xub nkag siab qhov teeb meem. Qhov txaus ntshai los ntawm cov khoom siv hluav taws xob yooj yim ntawm cov relay chev nws tus kheej.
Dab tsi yog cov relay chev?
Puab hluav taws xob, cov relay chev yog lub inductor. Lub inductor khw muag khoom lub zog hauv thaj teb sib nqus thaum hluav taws xob kub ntws los ntawm nws.
Ntawm no yog li cas ib tug relay ua haujlwm. Tam sim no ntws los ntawm coil. Qhov no tsim ib daim teb sib nqus uas rub tawm lub tshuab hloov khoom. Tus hloov mus kaw lossis qhib qhov hluav taws xob sib cais.
Tus "Kickback" cov nyhuv
Qhov teeb meem tsis tshwm sim thaum koj tig lub relay on. Nws tshwm sim thaum koj tig nws tawm. Thaum koj txiav lub zog rau lub kauj, qhov chaw nres tam sim no ntws.
Cov kev sib nqus uas ua rau ib ncig ntawm cov kauj tsis yog ploj. Nws tau vau sai. Raws li Lenz txoj cai lij choj, qhov kev hloov pauv no nrawm nyob rau hauv lub sib nqus daim teb tsim ib qho hluav taws xob tsim lub voltage hla cov kauj.
Qhov no feem ntau yog qhov sib txawv polarity rau thawj cov khoom hluav taws xob. Nws tuaj yeem muaj qhov tseem ceeb heev. Xav txog nws zoo li lub vas nthiv nrawm- ntws dej yeeb nkab uas koj dheev thaiv. Cov dej lub zog yuav tsum mus rau lwm qhov. Qhov no tsim cov loj heev zoo siab hu ua "dej rauj." Kev sib nqus sib nqus daim teb tsim ib qho zoo sib xws "Voltage Hammer."
Ib qho yooj yim 12v dc relay tuaj yeem tsim cov qhov txawv txav ntawm -100v rau -400V lossis ntau dua. Qhov luv luv no tab sis muaj zog tshwm sim yog qhov tsis txaus ntseeg.
Vim li cas qhov ntsia hlau loj no puas tsuaj
Qhov siab siab - voltage spike saib rau txoj kev mus tso nws lub zog. Nyob rau hauv ib tug neeg relay tsav kwm tsav tsheb, txoj kev no yog feem ntau rov qab los ntawm cov tivthaiv uas tau tswj hwm cov relay.
Cov txiaj ntsig tuaj yeem ua tau hnyav. Nws tuaj yeem rhuav tshem lub transistor lossis mosfet siv hloov cov relay. Nws tshaj qhov siab tshaj plaws ntsuas kev ntaus nqi thiab ua rau nws swb.
Yog tias microcontroller I / O tus pin yog tsav lub transistor, lub qhov ntsia hlau tuaj yeem taug kev rov qab thiab ua rau tus lej PIN. Nws yuav txawm rhuav tshem tag nrho cov microcontroller.
Txawm hais tias nws tsis ua rau Hardware tam sim ntawd tsis ua haujlwm, lub ntsej muag tau tsim hluav taws xob hauv hluav taws xob (EMI). Qhov no tuaj yeem ua rau cov qauv ua yuam kev, kev sib tsoo, lossis rov pib dua tshiab hauv koj cov digital Circuitry.
Lub capacitor lub luag haujlwm
Tam sim no peb nkag siab txog qhov kev rhuav tshem ntawm inductive bickback, cia saib seb lub capacitor yooj yim yog qhov muaj kuab heev.
Taming Voltage Spike
Lub capacitor mus ncaj qha rau hauv parallel nrog cov relay chev terminals. Nws ua raws li lub zog me me, lub zog hauv zos.
Thaum lub hwj chim rau cov relay yog txiav, lub kauj sib nqus pib ua rau vau. Lub resulting siab - voltage spiz tau hloov pauv. Hloov chaw rov qab rau hauv koj txoj kev tswj hwm puag ncig, lub zog ntws mus rau hauv lub capacitor. Qhov no tsub nws.
Tus kws tshuaj muaj lub zog nqus lub zog los ntawm kev sib nqus sib nqus. Qhov kev tawm tsam no qeeb qeeb ntawm qhov kev hloov hluav taws xob ntawm kev hloov pauv.
It transforms the sharp, high-amplitude voltage spike into a much gentler, slower-decaying voltage curve. Qhov qis dua, smoother voltage nyob hauv tsev zoo nyob rau hauv kev nyab xeeb kev txwv kev txwv ntawm kev tsav tsheb travistor lossis lwm yam kev tswj hwm.
Pom cov nyhuv
Qhov kev cuam tshuam ntawm ntxiv lub capacitor yog qhov zoo tshaj plaws pom los ntawm saib ntawm voltage hla cov cherminals ntawm ib qho ooscilloscope.
Yog tsis muaj lub capacitor:
Daim duab ib daim teeb duab Qhov hluav taws xob uas qhov hluav taws xob yog qhov ruaj khov ntawm cov khoom xa khoom (zoo li 12v). Thaum cov relay tig tawm, lub teeb qhia pom tam sim ntawd, ze li ntsug poob rau ib qho hluav taws xob tsis zoo (zoo li -200v). Qhov no yog ua raws li ib co rocillations ua ntej laij mus rau xoom. Qhov no yog qhov kev ua tau zoo li cas.
Nrog lub capacitor:
Tam sim no daim duab tib qho xwm txheej nrog lub capacitor nyob rau hauv qhov chaw. Thaum cov relay tig tawm, qhov hluav taws xob tsis loj. Hloov chaw, nws du liab los ntawm cov khoom siv hluav taws xob. Nws oscillates ncig xoom nrog lub qis qis dua ampleme ua ntej sib luag. Qhov txaus ntshai, siab - qhov kev tshwm sim yog tag nrho tshem tawm.
Xaiv koj rab riam phom: lwm tus snubbers
Tso lub capacitor ntawm cov kauj ruam relay yog ib txoj kev ntawm kev loj hlob. Tab sis nws yog ib qho tseem ceeb kom paub tias nws tsis yog ib qho xwb. To taub txog lwm txoj hauv kev, feem ntau hu ua "Snubber voj voog," pab koj xaiv cov tshuaj zoo tshaj plaws rau koj daim ntawv thov tshwj xeeb.
The Classic Diode
Txog DC relay circuits, feem ntau cov feem ntau thiab feem ntau muaj kev daws teeb meem zoo tshaj yog ib qho flyback diode. Nws tseem hu ua ib freewheeling diode.
Diode mus thaum kawg nrog cov kauj, tab sis hauv kev cuam tshuam rov qab. Qhov no txhais tau tias thaum lub sijhawm ua haujlwm ib txwm muaj, cov teeb meem teev tseg tam sim no thiab tsis muaj dab tsi. Thaum lub kauj yog de-} pakback voltage (uas muaj qhov sib txawv ntawm polarity) rau} biases cov diode.
Qhov no tsim ib lub voj kaw rau lub kauj tam sim no mus ncig ntawm cov diode thiab lub kauj nws tus kheej. Nws muaj kev ntxhov siab lub zog li cua sov hauv cov coil qhov tsis kam. Nws yog qhov zoo, yooj yim, thiab pheej yig.
Tus RC Snubber
Tus RC Snubber muaj lub resistor thiab capacitor txuas nrog hauv koob. Tus khub mus thaum sib piv nrog cov relay chev.
Cov teeb tsa no yog ntau tshaj li qhov yooj yim diode yooj yim dua li qhov yooj yim diode. Nws tsis tsuas yog suppresses thawj lub hluav taws xob loj tab sis kuj dampens lub "Ringing" (oscillations) uas tuaj yeem tshwm sim. Lub resistor yuav pab tsis txhob dissipate lub zog li cua sov. Tus kws tshuaj muaj lub cev muaj lub cev tso tawm ntawm qhov pib. RC snowbers ua haujlwm rau ob qho DC thiab AC Relay circuits.
Piv: Thaum siv dab tsi
Lub capacitor ib leeg yog qhov yooj yim, tab sis nws muaj lub suab nrov uas tseem ceeb tshaj plaws. Nws tsim LC resonant Circuit nrog rau kauj kev tsis raug. Qhov no tuaj yeem ua rau oscillations. Tseem ceeb tshaj, nws tuaj yeem qeeb qeeb qhov tig - thaum lub sijhawm ntawm relay. Raws li tus capactrator tsub thiab rho tawm, nws tuaj yeem ua kom lub coil energized rau ib feem ntev dua.
Rau siab - ceev hloov cov ntawv thov, qhov kev ncua no tuaj yeem tsis lees txais. Ib qho flyback diode tseem qeeb qeeb tig tig rau - tawm tab sis feem ntau muaj ntau dua.
Cia peb muab cov hau kev piv rau cov hau kev no.
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Txojkev |
Zoo |
Nplij txwv |
Zoo tshaj plaws rau |
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Capacitor nkaus xwb |
Yooj yim heev; Ua haujlwm rau AC lossis DC. |
Tuaj yeem qeeb qeeb relay tig - tawm; Ua tus resonant LC Circuit, ua rau lub suab nrov. |
Tsawg - tus nqi, tsis-} tseem ceeb tshaj plaws cov ntawv thov uas yooj yim yog qhov tseem ceeb. |
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Ntawv qhiaDiode |
Zoo kawg nkaus; Tus nqi qis; Yooj yim. |
DC voj voog nkaus xwb; Slows relay tig rov qab -} tawm sijhawm (tuaj yeem yog PRO lossis con). |
Tus qauv, mus - kom daws rau kev tiv thaiv DC relay tsav tsheb circuits. |
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RcTus snubber |
Ua haujlwm rau AC thiab DC; Dampens lub suab nrov zoo; Tiv thaiv hloov chaw. |
Ntau cov complex (ob feem); Yuav tsum tau laij rau kev ua tau zoo tshaj plaws. |
AC ncig (zoo li triacs tsav tsheb motors) lossis DC voj voog uas nrov nrov yog qhov teeb meem loj. |
Lub flyback diode yog feem ntau cov qauv nyiam rau DC Relays. Txawm li cas los xij, nkag siab tias lub capacitor ua haujlwm hauv lub luag haujlwm no yog qhov tseem ceeb. Nws tseem muaj kev xaiv zoo nyob rau qee cov ntsiab lus, tshwj xeeb tshaj yog hauv AC circuits lossis thaum ib qho Diode tsis haum.
Cov Ntawv Qhia Siv: Xaiv lub capacitor
Yog tias koj tau txiav txim siab tias tso lub capacitor ntawm cov relay chev yog txoj cai txoj hauv kev rau koj txoj haujlwm, xaiv qhov tseeb yog qhov tseem ceeb. Koj tsis tuaj yeem siv cov capacitor. Ob qho kev ntsuas yog qhov tshwj xeeb tshaj yog.
Qhov Tseem Ceeb Capacitor Qhov chaw
Kev Ntsuas Hluav Taws Xob
Qhov no yog qhov tseem ceeb tshaj plaws. Lub capacitor qhov voltage ntsuas yuav tsum muaj siab txaus kom muaj kev nyab xeeb rau kev xa hluav taws xob thiab cov khoom siv tau zoo.
Ib qho kev ua txhaum yog xaiv lub capacitor ntsuas tsuas yog rau Circuit Court cov khoom siv voltage. Piv txwv li, 16v capacitor rau 12v relay. Qhov no tsis txaus.
Ib txoj cai zoo ntawm tus ntiv tes xoo yog xaiv lub capacitor nrog kev ntsuas hluav taws xob tsawg kawg 2 txog 4 zaug ntawm cov khoom siv nominal ntawm cov relay chev. Rau 12V relay, 50V rated Capacitor muab cov npoo nyab xeeb. Rau 24V relay, ib 63V lossis 100V muaj peev xwm yog qhov kev xaiv zoo. Tsis txhob sib cais ntawm qhov ntsuas hluav taws xob hluav taws xob.
Tshuaj(Farads)
Qhov tseeb muaj peev xwm tus nqi feem ntau tsawg dua qhov tseem ceeb tshaj qhov ntsuas hluav taws xob. Tab sis nws tseem muaj teeb meem. Lub hom phiaj yog xaiv tus nqi loj txaus kom nqus tau cov kauj lub zog khaws cia tsis muaj nws tus kheej voltage nce siab dhau lawm.
Lub zog khaws cia hauv lub inductor yog muab los ntawm e {{0} ½ * * l * i². Lub zog lub capacitor tuaj yeem khaws cia yog e=½ * v². Los ntawm kev sib npaug cov no, koj tuaj yeem pom cov kev sib raug zoo ntawm kev tsis sib xws (L), tam sim no (cap) (c), thiab lub peak voltage (v).
Rau feem ntau me me rau nruab nrab - qhov loj me teeb liab thiab lub zog rov qab, tus nqi nyob rau hauv thaj tsam 0.1μf (microfarad) rau 1μF yog qhov pib zoo thiab pib. Qhov no feem ntau muab cov zog nqus tau txaus yam tsis muaj kev ua kom qeeb qeeb ntawm lub relay tig mus {}}} thaum so.
Cov Khoom Taw Haum Capacitor
Hom tshuaj uas koj xaiv tseem cuam tshuam rau kev ua tau zoo thiab kev teeb tsa.
Tej cericic Capacitors
Cov no yog cov kev xaiv feem ntau rau daim ntawv thov no. Qhov no muaj tseeb tshwj xeeb rau qhov tseem ceeb nyob ib ncig ntawm 0.1μf (feem ntau cim nrog tus lej "104").
Pros: Lawv tsis yog - polarized, lub ntsiab lus koj tuaj yeem nruab lawv hauv ob qho kev taw qhia. Lawv muaj lub neej ntev thiab qis hauv sab hauv tsis kam (ESR). Lawv ua tau zoo ntawm cov haujlwm siab ntau, ua rau lawv zoo heev rau kev suppressing ntse ntse.
Cons: Lawv ib txwm muaj nyob hauv cov txiaj ntsig qis dua qhov tseem ceeb.
Pes Electrolytic Capacitors
Cov no yog siv thaum muaj peev xwm siab dua muaj nuj nqis (xws li 1μF lossis ntau dua) yuav tsum muaj.
Pros: Lawv muaj lub peev xwm siab muaj peev xwm loj hauv lub cev me me. Qhov no ua rau lawv zoo tagnrho rau kev nqus cov nyiaj loj dua.
Cons: Lawv yog polarized. Qhov no yog qhov tseem ceeb. Lawv yuav tsum raug ntsia kom raug, nrog cov hmoov txhuas tsis zoo txuas nrog rau sab tsis zoo ntawm cov coil mov thiab tus coj zoo rau sab zoo. Txhim kho cov electrolytic capacitor rov qab yuav rhuav tshem nws. Nws kuj yuav yog qhov qhib lossis tawg. Lawv kuj tseem muaj lub duav luv dua thiab siab dua estr tshaj ceramic cericicitors.
Rau General - lub hom phiaj relay chilression, A 0.1μF, 500} {3} {} {yog qhov kev xaiv zoo heev thiab muaj kev nyab xeeb.
Txhim kho cov kev coj ua zoo tshaj plaws
Yuav ua li cas koj nruab lub capacitor yog ib qho tseem ceeb uas koj xaiv. Kev txhim kho tsis zoo tuaj yeem ua rau cov khoom siv tsis tau zoo. Nws tseem tuaj yeem qhia cov teeb meem tshiab.
Tus thawj tswj hwm
Tus capacitor yuav tsum muab tso rau lub cev kom ze rau cov khoom siv hluav taws xob ntau li ntau tau. Nov yog tib txoj cai tseem ceeb tshaj plaws ntawm kev teeb tsa.
Los ntawm peb kev paub dhau los, cov xov hlau ntev ntawm cov kauj thiab lub caperction capators yog qhov teeb meem tseem ceeb. Cov xaim no muaj lawv tus kheej inductance. Qhov no tuaj yeem txo qhov ua tau zoo ntawm lub capacitor. Tseem ceeb tshaj, lub voj tsim los ntawm cov kauj thiab cov xov ntev ntev ua raws li tus kav hlau txais xov. Nws radiates muaj hluav taws xob hauv hluav taws xob ntau heev (EMI) koj tab tom sim mus rau kev txwv.
Peb ib txwm tsom kom muaj lub capacitor cov ua rau soldered ncaj qha thoob plaws ntawm cov pins ntawm cov ntawv luam tawm Circuit Court (PCB). Lub hom phiaj yog los ua lub voj rau tam sim no rau lub zog rov qab raws li me thiab nruj li sai tau.
Kauj Ruam - by -}} Ruam installation
Ua raws cov kauj ruam no rau ib tus kws tshaj lij thiab kev teeb tsa zoo.
Kauj ruam 1: Txheeb xyuas cov coil terminals
Ua ntej, koj yuav tsum txheeb xyuas ob qho kev txiav tawm rau cov relay's coil. On tus qauv pcb {{1} mount relay, cov no yog cais los ntawm kev hloov sib chwv pins (nquag qhib, nquag kaw). Tham nrog cov relay's datasheet kom paub meej tias tus pinout. Lub coil pins feem ntau cim rau relay casing.
Kauj ruam 2: Tshawb xyuas polarity (yog tias tsim nyog)
Yog tias koj siv tsis yog - polarized ceramic ceracitor, koj tuaj yeem hla cov kauj ruam no.
Txawm li cas los xij, yog tias koj siv cov polarized electrolytic capacitor, qhov no yog kev kuaj kev nyab xeeb rau kev nyab xeeb. Saib rau cov kab txaij ntawm lub capacitor lub cev. Qhov no yuav luag ib txwm qhia txog cov hmoov txhuas tsis zoo. Qhov kev coj ua tsis zoo no yuav tsum txuas nrog rau sab ntawm lub kauj uas mus rau cov khoom siv tsis zoo (hauv av). Lwm cov hmoov txhuas (zoo) txuas rau qhov zoo ntawm lub kauj. Ob npaug - mus xyuas qhov no ua ntej thov lub zog.
Kauj ruam 3: Solder lub capacitor nyob rau hauv qhov chaw
Luas lub capacitor cov hmoov txhuas kom lawv thiaj li sai tau thaum tseem tuaj yeem ua rau muaj ob lub terminals.
Solder lub capacitor ncaj thoob lub voj voos terminals. Nco ntsoov tias koj cov pob qij zeb sib dhos yog cov khoom huv thiab ruaj khov. Qhov kawg yuav tsum yog lub peev xwm me me zaum zaum ntawm lub cev relay. Nws yuav tsum tau txuas ncaj qha rau nws cov coil pins.
PCB teeb tsa kev txiav txim siab
Yog tias koj xaiv koj tus PCB, koj tuaj yeem ua kom zoo rau kev teeb tsa kom tau kev hloov pauv. Tso lub capacror tus hneev taw tau nyob ib sab ntawm relay tus chev pin hneev. Txoj kev khi cov kab txuas rau lawv kom luv thiab dav. Qhov no tsim qhov tsawg tshaj plaws lub voj voos. Qhov no xyaum minimizes ob qho tib si parasitic inductance thiab emi hluav taws xob. Nws ua rau muaj zog dua thiab cov kws tshaj lij tsim qauv Circuit Court.
Kev Kawm Kev Kawm: Tiv thaiv ib lub microcontroller
Cia peb taug kev los ntawm qhov tseeb - Lub ntiaj teb cov xwm txheej kom pom tias tag nrho cov ntsiab lus no ua ke li cas. Qhov piv txwv no qhia tau tias muaj kev pom zoo rau kev tsis lees paub kev nkag siab ncaj qha thiab txhim kho qhov yooj yim, zoo kho.
Cov xwm txheej
Daim duab ib tug hom kev nyiam ua lossis cov phiaj xwm kev ua haujlwm. Lub rooj tsavxwm Arduino tau siv los tswj 12v automotive -} style style kev xa tawm. Arduino's 5V Logic teeb liab los ntawm cov digital I / O tus lej hloov pauv me me BJT transistor (zoo li 2N222) lossis lub cav}}. Tus neeg hloov pauv no yog qhov qis- sab mus rau 12v relay chev.
Qhov teeb meem hauv kev ua
Lub Circuit Court yog ua rau ntawm lub khob cij. Thaum pib, nws zoo li ua haujlwm. Tus relay nyem rau ntawm thiab tawm raws li qhov xav tau.
Txawm li cas los xij, tom qab ob peb lub voj voog hloov, teeb meem coj txawv txawv tshwm sim. Lub Arduino yuav tau pib dua thaum twg yog relay muab tua. Los yog, tom qab ib hnub ntawm kev siv, BJT Stistor mam li nco dheev thiab tsis hloov chaw rov qab.
Qhov no yog qhov kos npe classic ntawm inductive rov qab kev puas tsuaj. Tus -100v lossis ntau dua Spike yog tsim los ntawm 12v relay chev yog qhov nrhiav nws txoj kev rov qab los cuam tshuam nrog Arduino txoj haujlwm thiab ua rau rov pib dua.
Kev siv txoj kev daws teeb meem
Kev daws yog yooj yim thiab tus nqi tsuas yog ob peb xees. Peb yuav tso lub capacitor ncaj qha thoob plaws ntawm relay 12v chev terminals.
Peb xaiv 0.1μF, 50V Creatic Capacitor. Cia peb swb vim li cas:
0.1µF:Qhov no yog tus qauv, muaj pov thawj tus nqi rau suppressing spikes los ntawm hom relay no. Nws loj txaus kom nqus lub zog zoo.
50V:Qhov kev ntsuas hluav taws xob no muab cov npoo kev nyab xeeb txaus. Nws yog ntau tshaj plaub zaug 12v muab voltage. Nws yuav yooj yim lis ib qho hluav taws xob hloov hluav taws xob.
Ceramic:Peb xaiv hom kev sib cav sib ceg vim tias nws tsis yog {}} polarized (ua tsis tau nws zoo- cov cim rau clamping ntse spikes.
Tus catacitor tau soldered nrog luv luv luv taug kev ncaj qha thoob plaws ob coil pins ntawm lub relay nws tus kheej.
Qhov tshwm sim
Nrog tus capacitor tau nruab tau, ntawm Circuit Court tus cwj pwm yog hloov. Lub relay hloov ntawm thiab tawm kev ntseeg tau, ntau txhiab lub sijhawm. Tus transistor tsis tau nyob rau hauv kev ntxhov siab thiab tsis swb. Lub Arduino ua haujlwm tsis muaj kev rov kho dua tshiab lossis teeb pom kev zoo.
Lub Circuit Court yog tam sim no ruaj khov, muaj zog, thiab txhim khu kev qha. Txhua tus ua tsaug rau ib qho me me, kev sib xyaw ua ke. Qhov kev tshawb no zoo kawg nkaus qhia tau hais tias lub creatchorcoritor li cas los ntawm cov qauv uas tsis yooj yim rau kev ntseeg tau.
Xaus: Feem ntau tiv thaiv me me
Peb tau pom tias kev hloov pauv yooj yim ntawm kev hloov pauv cov kauj ruam uas muaj zog thiab muaj peev xwm cuam tshuam hluav taws xob: inductive rov qab.
Tso lub capacitor ntawm cov xov xa xov yog qhov ncaj qha thiab siv tau zoo. Nws ua raws li lub zog nqus dej hiav txwv. Nws muaj kev nyab xeeb lub zog ua kom muaj kev phom sij los ntawm kev sib nqus sib nqus sib nqus ua ntej nws tuaj yeem ua rau koj lub Circuit Court.
Thaum lwm txoj kev zoo li flyback diodes muaj nyob thiab feem ntau nyiam rau DC voj voog, nkag siab lub luag haujlwm ntawm cov kws paub txog electronics.
Los ntawm kev thov cov txheej txheem no, koj tau txais txiaj ntsig tseem ceeb:
Tiv thaivKoj cov kev tsav tsheb siv kev tsav tsheb zoo li cov transistors thiab microcontrollers los ntawm kev puas tsuaj.
Txhim khoKev tiv thaiv tag nrho cov ruaj khov thiab kev cia siab los ntawm kev tiv thaiv random rov qab thiab glitches.
TxoElectromagnetic cuam tshuam (EMI) uas tuaj yeem cuam tshuam lwm qhov ntawm koj lub cev.
Txuas ntxivLub neej ntawm koj lub Cheebtsam hluav taws xob, ua rau ntau dua robust thiab ntev - kav dej kawg.
Lwm zaus koj tsim ib puag ncig nrog cov relay, nco ntsoov zais kev phom sij ntawm cov kauj. Los ntawm kev ntxiv qhov no me me tab sis tseem ceeb tiv thaiv, koj tab tom noj cov kauj ruam yooj yim uas ua rau muaj kev cuam tshuam loj heev rau kev tshaj lij thiab lub zog ntawm koj txoj haujlwm.
Relay Cov Ntaub Ntawv Sib Tham: Lawv yog dab tsi thiab vim li cas lawv thiaj tseem ceeb
Koj tuaj yeem txheeb tau li cas thiab txo lub suab nrov hauv koj lub voj voog
Vim li cas thiaj li rov qab ua haujlwm ntau rau lub cev pib thiab kev tiv thaiv?
Uas yog qhov ntsaws zoo dua - hauv relay lossis pcb relay rau koj qhov project