Txhawm rau kho qhov ci ntawm lub teeb ci, siv cov tswj tshwj xeeb. Cov cuab yeej no tseem hu ua dimmers. Lawv muaj nyob rau hauv ntau yam kev hloov kho, thiab yog tias tsim nyog, koj tuaj yeem xaiv tus qauv tsim nyog hauv lub khw. Yeej, lawv hloov qhov hloov pauv hauv lub teeb incandescent. Qhov kev hloov kho yooj yim tshaj plaws suav nrog ib lub tshuab hluav taws xob teb nrog tus kov. Thaum kho qhov ci, qhov taw qhia kev siv hluav taws xob kuj hloov.
Yog tias koj nco qab cov hnub qub, ces cov kev tswj kom kho qhov ci tsis tau siv. Hloov chaw, tshwj xeeb rheostats raug ntsia. Nrog lawv cov kev pab, nws tseem ua tau los tswj cov teeb fluorescent. Feem ntau, lawv tiv tau zoo nrog lawv cov dej num, tab sis lawv muaj ib tug drawback. Nws muaj feem xyuam nrog kev siv lub zog. Raws li tau hais ua ntej, cov neeg tswj hwm niaj hnub siv hluav taws xob tsawg dua yog tias lawv tsis siv tag nrho. Nyob rau hauv cov ntaub ntawv ntawm rheostats, txoj cai no tsis siv. Ntawm qhov tsawg kawg nkaus lub zog, hluav taws xob yog siv tib yam li qhov siab tshaj plaws. Qhov ntau dhau ntawm qhov no yog hloov mus rau hauv tshav kub.
Tshaj tawm ntawm kev tswj hwm tus qauv
Ib qho yooj yim dimmer Circuit Court siv lub tshuab hluav taws xob linear thiab ib khub ntawm cov hluav taws xob qis qis. Capacitors yog siv los txo qis zaus hauv qhov system. Cores hauv cov khoom siv ntawm hom no tsuas yog xav tau ntawm hom ferrite xwb. Lub dinistor nrog lub thyristor yog ntsia ncaj qha rau pem hauv ntej ntawm lub terminals.
Yuav ua li cas rau nruab qhov kev tswj xyuas hauv lub teeb?
Yuav kom lub rooj teeb nrog lub dimmer ua haujlwm kom zoo, koj yuav tsum xyuas qhov voltage ntawm lub semiconductor. Qhov no tuaj yeem ua tiav los ntawm kev siv tus ntsuas tsis tu ncua. Tom ntej no, koj yuav tsum tau soj ntsuam lub incandescent teeb board. Yog hais tias nws yog ntsia ib leeg-channel hom, ces txhua yam yog heev yooj yim ua. Nws yog ib qho tseem ceeb uas yuav tsum tau txuas cov khoom siv hluav taws xob mus rau qhov tso zis uas muaj qhov tsis zoo polarity. Hauv qhov no, qhov siab tshaj plaws kuj yuav tsum yog 3 ohms. Txhawm rau kuaj xyuas lub cuab yeej, koj yuav tsum tig lub maub los thiab tib lub sijhawm saib xyuas qhov ci ntawm lub teeb ci.
Txhim kho lub laub khawm tswj rau hauv lub teeb
Txhawm rau kom lub teeb incandescent dimmer ua haujlwm kom raug, nws yog ib qho tseem ceeb kom ua tib zoo paub koj tus kheej nrog lub rooj tswj hwm ntawm lub cuab yeej. Tom ntej no, koj yuav tsum txuas tag nrho cov neeg sib cuag. Yog hais tias lub Circuit Court yog siv ntau-channel, ces qhov voltage ntawm nws yog kuaj los ntawm ib tug tester. Kev sib txuas ncaj qha rau kev sib cuag yog ua los ntawm kev sib txuas. Nws yog ib qho tseem ceeb tsis txhob kov cov resistors thaum ua haujlwm. Tsis tas li ntawd, yuav tsum tau saib xyuaskab hluav taws xob rwb thaiv tsev. Ua ntej qhib lub regulator, xyuas qhov kev ntseeg tau ntawm txhua qhov kev sib txuas. Tom qab muab lub zog, koj yuav tsum sim hloov qhov ci los ntawm nias lub pob.
High voltage dimmers
High voltage dimmer hloov feem ntau pom hauv cov chaw ua yeeb yam. Nyob ntawd, cov teeb ci incandescent tau siv zog heev, thiab cov khoom siv yuav tsum muaj peev xwm tiv taus cov khoom hnyav. Triacs rau lub hom phiaj no yog siv high-voltage (cim KU202). Transistors siv yog bipolar, tab sis lawv cov kev hloov kho ib txwm raug teeb tsa.
Diode txuas hniav yog soldered nyob ze ntawm lub thyristors thiab tsim nyog rau kev sib kis ceev ceev. Zener diodes feem ntau tuaj yeem pom nrog lub cim D814. Lawv kim heev nyob rau hauv lub khw, thiab qhov no yuav tsum tau coj mus rau hauv tus account. Hloov pauv cov resistors hauv qhov system tuaj yeem tiv taus qhov siab tshaj plaws ntawm qib 60 ohms. Lub sij hawm no, cov pa analogues tsuas yog fused nrog 5 ohms.
qauv nrog precision resistors
Lub dimmer nrog resistors ntawm hom no yog tsim los rau nruab nrab lub hwj chim incandescent teeb. Zener diodes nyob rau hauv cov ntaub ntawv no yog siv nyob rau hauv 12 V. Variable resistors nyob rau hauv regulators yog heev tsawg. Kev hloov kho zaus tsawg tuaj yeem siv tau. Nyob rau hauv cov ntaub ntawv no, nws muaj peev xwm ua kom cov conductivity coefficient los ntawm kev nce tus naj npawb ntawm capacitor. Tom qab lub triac, lawv yuav tsum nyob rau hauv khub. Hauv qhov no, kev poob cua sov yuav tsawg heev. Kev tsis zoo hauv lub network qee zaum sawv cev rau qhov hnyavteeb meem. Thaum kawg, overload ua rau kev tawg ntawm zener diode. Electrolytic capacitors nrog tsawg zaus cuam tshuam tau zoo heev. Qhov tseem ceeb nyob rau tib lub sij hawm yog tsis muab ib tug sharply high voltage rau lub teeb.
Regulator Circuit Court nrog high-megaohm resistors
hom dimmer no tuaj yeem siv los tswj ntau hom teeb. Nws Circuit Court muaj xws li high-megaohm AC resistors, nrog rau cov pa zener diode. Lub thyristor nyob rau hauv cov ntaub ntawv no yog ntsia ib sab ntawm lub capacitor. Txhawm rau txo qhov kev txwv ntau zaus, cov kws tshaj lij feem ntau siv cov fuses ntawm hom fuse. Lawv muaj peev xwm tiv taus lub load ntawm 4 A. Nyob rau hauv cov ntaub ntawv no, lub limiting zaus ntawm cov zis yuav yog siab tshaj plaws ntawm 50 Hz. Triacs rau lub hom phiaj dav dav input voltage tuaj yeem tiv taus 15 V.
Hloov nrog FET regulators
Teb-tshuaj cuam tshuam transistor dimmer keyboards tau tiv thaiv zoo. Short circuits nyob rau hauv lub system yog heev tsawg, thiab qhov no yog undoubtedly ib tug kom zoo dua. Tsis tas li ntawd, nws yuav tsum nco ntsoov tias zener diodes rau cov neeg tswj hwm tsuas yog siv tau nrog KU202 cim. Nyob rau hauv cov ntaub ntawv no, lawv muaj peev xwm ua hauj lwm nrog tsawg zaus resistors thiab tiv nrog zoo cuam tshuam. Triacs nyob rau hauv circuits yog nyob tom qab cov resistors. Lub limiting kuj nyob rau hauv lub system yuav tsum tau khaws cia ntawm 4 ohms. Cov resistors tuav lub input voltage ntawm txog 18 V. Lub limiting zaus, nyob rau hauv lem, yuav tsum tsis txhob ntau tshaj 14. Hz.
Regulator nrog trimmer capacitors
Ib dimmer nrog trimmer capacitors tuaj yeem siv tau los kho lub zog ntawm cov teeb fluorescent. Cov keyboards hauv qhov no yuav tsum nyob tom qab tus choj diode. Zener diodes hauv Circuit Court yog xav tau los cuam tshuam kev cuam tshuam. Hloov pauv hom resistors, raws li txoj cai, tiv thaiv qhov txwv tsis pub dhau ntawm qib 6 ohms.
Nyob rau hauv rooj plaub no, thyristors tsuas yog siv los tswj qhov voltage ntawm qib tsim nyog. Triacs muaj peev xwm hla tam sim no los ntawm lawv tus kheej ntawm ib theem ntawm kwv yees li 4 A. Fusible hom fuses hauv regulators yog tsawg heev. Qhov teeb meem nrog hluav taws xob conductivity nyob rau hauv xws li pab kiag li lawm yog daws los ntawm kev siv ib tug sib txawv resistor ntawm cov zis.
Model nrog yooj yim thyristor
Dimmer nrog thyristors yooj yim yog qhov zoo tshaj plaws rau cov qauv laub khawm. Lub system ntawm kev tiv thaiv, raws li txoj cai, yog tsis muaj nyob rau hauv nws. Tag nrho cov kev sib cuag nyob rau hauv lub regulator yog ua los ntawm tooj liab. Qhov siab tshaj plaws tsis kam ntawm cov tswv yim ntawm cov pa thyristor tuaj yeem tiv taus 10 V. Lawv tsis zoo rau cov tswj kev sib hloov. Precision resistors nrog xws li regulators tsis muaj peev xwm ua hauj lwm. Qhov no yog vim qhov loj ntawm qhov tsis zoo nyob hauv Circuit Court.
High-frequency resistors kuj tau nruab tsis tshua muaj. Hauv qhov no, theem ntawm kev cuam tshuam yuav yog qhov tseem ceeb thiab yuav ua rau muaj ntau dhau ntawm zener diode. Yog tias peb tham txog cov teeb rooj zoo tib yam, ces nws yog qhov zoo tshaj plaws los siv ib qho thyristor zoo tib yam ua ke nrog cov hlau resistors. Lawv cov conductivity tam sim no yog nyob rau theem siab. Lawv tsis tshua muaj cua sov, lub zog dissipation nruab nrab ntawm 2 watts.
Siv cov capacitors sib txawv hauv ib lub voj voog
Ua tsaug rau kev siv cov khoom siv hluav taws xob sib txawv, nws tuaj yeem ua tiav qhov kev hloov pauv ntawm qhov ci ntawm cov teeb ci. Txawm li cas los xij, cov qauv electrolytic ua haujlwm nyob rau hauv ib txoj kev sib txawv kiag li. Transistors rau cov capacitors zoo tshaj plaws rau 12 watts. Lub input voltage yuav tsum tau khaws cia ntawm 19 V. Fuses kuj yuav tsum tau muab. Thyristors feem ntau yog siv nrog KU202 cim. Rau kev hloov pauv hloov, lawv haum zoo. Txhawm rau ua kom cov coefficient ntawm conductivity, potentiometers yog siv nrog lub network keyboards.
Ib qho kev sib txuas regulator ntaus ntawv
Lub dimmer ib-txoj kev yog nto moo rau nws txoj kev yooj yim. Resistors nyob rau hauv nws, raws li txoj cai, yog siv ntawm 4 watts. Nyob rau tib lub sijhawm, nws muaj peev xwm ua kom qhov siab tshaj plaws ntawm 14 V. Thaum siv nws, nws yog ib qho tseem ceeb uas yuav tsum tau coj mus rau hauv tus account tias lub teeb yuav flicker thaum lub sijhawm ua haujlwm. fuses tsis tshua siv hauv cov khoom siv.
Ntawm qhov kev tawm tswv yim, qhov ntsuas tam sim no tuaj yeem tawm qhov siab tshaj plaws ntawm 4 A. Thyristors ntawm hom KU202 muaj peev xwm ua haujlwm hauv cov kab ke no tsuas yog ntawm ib khub nrog tus choj diode. Lub triac nyob rau hauv lub cuab yeej yuav tsum tau txuas tom qab lub resistor. Txhawm rau txuas lub dimmer rau lub teeb, koj yuav tsum ntxuav tag nrho cov kev sib cuag. Nws yog ib qho tseem ceeb uas yuav tau siv lub tsev dielectric rau lub cuab yeej. Nyob rau hauv xws lirooj plaub, kev nyab xeeb ua haujlwm yuav lav.
