Dimmer: tswvyim thiab apparatus. Switches nrog dimmers

Tshwj xeeb ntawm lwm yam uas yuav siv los kho cov brightness ntawm incandescent teeb. Cov pab kiag li lawm kuj hu ua dimmers. Lawv muaj nyob rau hauv txawv versions, thiab, yog tias tsim nyog, nyob rau hauv lub khw koj yuav yeej ib txwm xaiv cov qauv tsim nyog. Yeej, lawv hloov ib tug Circuit Court breaker nyob rau hauv ib tug incandescent teeb. Qhov yooj yim cov kev hloov kho muaj xws li ib tug teb xws nrog ib tug cwj mem. Thaum teem lub luminance tivthaiv ntxiv hloov nyob rau hauv hluav taws xob noj.

Yog hais tias koj nco ntsoov lub hnub qub, ntawm lwm yam uas rau kho brightness yog tsis siv. Es tsis txhob, tshwj xeeb dimmers ntsia. Nrog lawv pab, koj yuav raug tswj fluorescent teeb. Nyob rau hauv kev, nrog rau cov hauj lwm lawv coped zoo, tab sis lawv muaj ib tug disadvantage. Nws yog kev cob cog rua nrog lub tau ntawm hluav taws xob. Raws li twb tau hais, niaj hnub regulators siv tsawg hluav taws xob yog siv tsis nyob rau hauv tag nrho cov muaj peev xwm. Nyob rau hauv cov ntaub ntawv ntawm lub resistances tias txoj cai no siv tsis tau. Qhov tsawg kawg nkaus hwj chim noj hluav taws xob raws li zoo raws li nyob rau hauv cov nyiaj pab ntau tshaj. Tshaj nyob rau hauv cov ntaub ntawv no hloov dua siab tshiab rau thaum tshav kub kub.

Scheme pa regulator

Tej yam yooj yim dimmer Circuit Court yuav siv cov lub linear potentiometer hom, thiab ib tug khub ntawm transistors nrog tsis muaj zog. Yuav kom suppress siab zaus capacitors yog siv nyob rau hauv lub system. Lub cores nyob rau hauv lub pab kiag li lawm ntawm no hom yuav tsum tau tsuas hom ferrite. Tam sim ntawd ua ntej lub davhlau ya nyob twg yog teem rau lub Shockley diode thyristor.

Yuav ua li cas tig lub dial mus rau lub teeb?

Yuav kom rooj teeb nrog dimmer ua hauj lwm txhua zaus, mus saib cov voltage thoob plaws lub semiconductor. Qhov no yuav ua tau siv ib tug pa tester. Tom ntej no, tshawb xyuas lub Rooj Tswjhwm Saib cov teeb. Yog hais tias nws yog teem odnokalnogo hom, tag nrho cov ua heev tsuas. Lub tso zis semiconductors tseem ceeb kev cob cog rua rau qhov hluav taws xob qhib, uas muaj negative polarity. Nyob rau hauv rooj plaub no tus siab tshaj plaws tsis kam yuav tsum yog 3 ohms. Yuav kom ntsuam xyuas cov kev ntaus ntawv, koj yuav tsum tig lub maub los thiab saib nyob rau tib lub sij hawm rau cov brightness ntawm incandescent teeb.

Txhim kho lub laub khawm nyob rau hauv lub teeb

Yuav kom tswj cov brightness ntawm incandescent teeb khiav lag luam kom zoo, nws yog ib qho tseem ceeb los ua me ntsis txog cov lub ntaus ntawv tswj board. Tom ntej no, koj yuav tsum tau txuas tag nrho koj hu. Yog hais tias lub Circuit Court yog siv ib tug multi-channel, lub voltage rau nws yog soj ntsuam tester. Compound ncaj qha hu nqa los ntawm brazing. Nws yog ib qho tseem ceeb nyob rau tib lub sij hawm thaum lub sij hawm kev lag luam tsis mob resistors. Tsis tas li ntawd, koj yuav tau saib xyuas ntawm lub xov rwb thaiv tsev. Ua ntej koj tig rau lub maub los koj xav mus saib tag nrho cov kev sib txuas yog kev ruaj ntseg. Tom qab fais fab mov yog tsim nyog los sim hloov cov brightness yog nias lub khawm.

High brightness ntawm lwm yam uas

Cov high-voltage dimmer teeb pom kev zoo, raws li ib tug txoj cai, yuav muaj nyob rau hauv theaters. Muaj incandescent yaj yog siv heev haib, thiab tus ntaus ntawv yuav tsum tau los mus tiv hnyav loads. Triacs rau lub hom phiaj no, high-voltage (cim nrog KU202) thov. Bipolar transistors siv, txawm li cas los, li ib txwm hloov ntawd kuj teem.

Diode choj soldered nyob ze ntawm lub thyristors thiab tsim nyog rau ceev ceev teeb liab kis tau tus mob. Zener diodes feem ntau yuav pom nyob rau ntaus cim D814. Lawv yog cov nyob rau hauv lub khw yog kim heev, thiab qhov no yuav tsum tau coj mus rau hauv tus account. Kuj tsis paub meej resistors nyob rau hauv lub system yog muaj peev xwm los mus tiv voltage txwv ntawm 60 ohms. Thaum lub sij hawm no, cov pa counterparts fused nrog xwb 5 ohms.

Qauv nrog precision resistors

Dimmer nrog resistors ntawm no hom yog tsim los rau incandescent nruab nrab lub hwj chim. Zener diodes nyob rau hauv cov ntaub ntawv no, lub 12 V kuj tsis paub meej resistors regulators tsis tshua muaj. Tsawg zaus hloov yuav tsum tau siv. Yuav kom nce conductivity coefficient nyob rau hauv cov ntaub ntawv no nws yog ua tau los ntawm nce lub xov tooj ntawm capacitors. Rau triac lawv yuav tsum tau muab tso rau hauv officers. Nyob rau hauv cov ntaub ntawv no, lub tshav kub losses yuav tsawg heev. Tsis zoo kuj network yog feem ntau ib tug teeb meem loj. Overload thaum kawg ua rau yus rhuav tshem ntawm lub zener diode. Electrolytic capacitors nrog tsawg zaus suab nrov tiv heev ntse. Qhov loj tshaj plaws nrog rau qhov no - tsis txhob muab ntse high voltage mus rau lub teeb.

Lub regulator Circuit Court nrog resistors vysokomegaomnymi

Brightness tswj ntawm no hom yuav siv tau los tswj ntau hom ntawm lub teeb. Scheme nws muaj vysokomegaomnye resistors AC, raws li zoo raws li cov pa zener. Thyristor nyob rau hauv cov ntaub ntawv no yog muab tom ntej no mus rau ib tug condenser. Yuav kom txo tau cov kev txwv zaus tshwj xeeb feem ntau siv Fuse hom. Lawv yog cov tau mas ib tug load ntawm 4 A. Thaum no txwv zaus ntawm cov zis yuav tsum muaj ib tug tshaj plaws ntawm 50 Hz. cov hom phiaj kev tswv yim voltage Triacs yuav mas nyob 15 V.

Switches nrog regulators FET

Nrog dimmer keyboards rau FET yus zoo tiv thaiv. Luv-Circuit Court nyob rau hauv lub system tshwm sim heev tsis tshua muaj, thiab nws yeej yog ib qho zoo dua. Tsis tas li ntawd, thov nco ntsoov tias lub Zener regulator yuav siv tau tsuas nrog KU202 npav. Nyob rau hauv cov ntaub ntawv no, lawv muaj peev xwm ntawm kev khiav hauj lwm nrog tsawg zaus resistors thiab tiv nrog cuam zoo. Triacs nyob rau hauv circuits nyob qab lub resistors. Lub limiting kuj nyob rau hauv lub system yog yuam ua hauj lwm yuav tsum tau khaws cia nyob rau hauv 4 ohms. Lub voltage ntawm lub tswv yim resistors tuav kwv yees li 18 V. txwv zaus, nyob rau hauv lem, yuav tsum tsis txhob ntau tshaj 14 Hz.

Regulator nrog trimmer

Dimmer nrog trimmer capacitor yuav ntse siv los kho lub hwj chim ntawm fluorescent teeb. Switches nyob rau hauv cov ntaub ntawv no yuav tsum tau muab tso rau tom qab ib tug diode choj. Zener diodes nyob rau hauv lub Circuit Court yuav tsum tau rau cuam hluav. Resistors nce mus nce los hom no feem ntau yog cov txawj impedance yog khaws cia nyob rau hauv 6 ohms.

Thaum no thyristors yog siv heev dua lwm yam kom muaj lub voltage ntawm cov theem. Triacs los ntawm nws tus kheej muaj peev xwm ntawm dua tam sim no mus rau ib theem ntawm txog 4 A. Fuse hom controllers tsis tshua muaj. Qhov teeb meem nrog xws li nyob rau hauv qhov hluav taws xob conductivity yog tiav los ntawm txoj kev ntawm lub nce mus nce los resistor ntawm cov qhov tso zis.

Model nrog ib tug yooj yim triac

dimmer teeb nrog tej yam yooj yim thyristor yog zoo tshaj plaws haum rau lub laub-khawm qauv. kev tiv thaiv system, raws li ib tug txoj cai, nws tsis. Tag nrho cov muaj mob nyob rau hauv lub regulator no yog ua los ntawm tooj liab. Maximum kuj mus pa thyristor yuav withstand inlet 10 V. Rau teb controllers yog tsis zoo suited. Precision resistors nrog xws li regulators yog tsis muaj peev xwm mus ua hauj lwm. Qhov no yog vim high theem ntawm tsis zoo kuj nyob rau hauv lub Circuit Court.

High-zaus resistors kuj heev tsis tshua muaj. Nyob rau hauv cov ntaub ntawv no, lub suab nrov theem yuav yuav tseem ceeb thiab yuav ua rau ib tug ntau dhau ntawm lub zener diode. Yog hais tias peb tham txog cov ib txwm rooj teeb, nws yog qhov zoo tshaj plaws los mus siv ib tug pa thyristor khub nrog hlau resistors. Lub conduction lawv yog cov nyob rau ib tug ncaj high theem. Lawv tsis tshua overheat, lub hwj chim dissipation nyob rau hauv qhov nruab nrab yog ib ncig ntawm 2 watts.

Kev siv ntawm nce mus nce los capacitors nyob rau hauv lub Circuit Court

Los ntawm kev siv ntawm nce mus nce los capacitors tau tiav ib tus kev hloov ntawm cov brightness ntawm incandescent teeb. Nyob rau hauv cov ntaub ntawv no, lub electrolytic qauv ua hauj lwm heev txawv. Transistors rau cov capacitors yog haum rau 12 watts feem ntau. Lub tswv yim voltage yuav tsum tau khaws cia nyob rau hauv 19 V. Nws yuav tsum tau muab rau cov kev siv ntawm fuses. Thyristors yog feem ntau yog siv nrog npav KU202. Lawv zoo suited rau teb versions. Yuav kom nce conductivity coefficient potentiometers siv nrog network keyboards.

Tus ntaus ntawv xws unijunction

Unijunction dimmer teeb yog lub npe hu rau nws simplicity. Resistors nyob rau hauv nws, raws li ib tug txoj cai, siv los ntawm 4 watts. Nyob rau hauv cov ntaub ntawv no, lub siab tshaj plaws voltage nws muaj peev xwm los tuav 14 V. Thaum siv nws, nws yog ib qho tseem ceeb los ua tim nyob rau hauv lub siab hais tias thaum lub sij hawm lub teeb yuav flicker. Lub fuses nyob rau hauv lub pab kiag li lawm yog siv heev tsis tshua muaj.

Thaum nyiaj pab ntau tshaj nyob tam sim no cov tswv yim ua tau tawm 4 A. Thyristors KU202 hom muaj peev xwm ntawm xws li ib tug system ua hauj lwm rau ib tug ob peb nrog ib tug diode choj. Lub triac ntaus ntawv yuav tsum tau kev cob cog rua dua ib resistor. Yuav kom txuas lub dimmer mus rau lub teeb, koj yuav tsum tau ntxuav tag nrho cov muaj mob. Lub tsev nyob rau hauv lub ntaus ntawv nws yog ib qho tseem ceeb mus thov ib tug dielectric. Nyob rau hauv cov ntaub ntawv no, lub chaw ua hauj lwm muaj kev ruaj ntseg yuav tsum guaranteed.