Cov txheej txheem dimming ntawm LED teeb
Nrog rau txoj kev loj hlob sai ntawm LED era, kev tswj cov teeb tsis yooj yim rau qhib thiab tawm. Ntau yam dimming txoj kev tau siv nyob rau hauv ntau lub khw malls, tsev so, thiab cov tsev ua haujlwm kom tau raws li qhov xav tau ntawm lub teeb ci ntawm lub sijhawm sib txawv thiab scenes. .
Tam sim no, cov kev txawj ntse tswj dimming txoj kev feem ntau suav nrog cov hauv qab no:
1. Frontier theem-txiav tswj dimming
Lub hauv paus ntsiab lus yog los kho lub conduction lub kaum sab xis ntawm txhua ib nrab-yoj ntawm alternating tam sim no los hloov lub sine waveform, yog li hloov tus nqi zoo ntawm alternating tam sim no, thiaj li mus cuag lub hom phiaj ntawm dimming. Raws li kev lag luam-ua dimming txoj kev, txiav-ntug dimming muaj qhov zoo ntawm qhov raug siab, me me, lub teeb yuag, thiab yooj yim tswj chaw taws teeb. Feem ntau ntawm cov tuam ntxhab cov khoom lag luam yog hom dimmer. Thawj theem tswj dimmers feem ntau siv thyristors li hloov khoom siv, yog li lawv kuj hu ua thyristor dimmers.
Qhov zoo ntawm thyristor dimmers yog: tsis tshua muaj nqi dimming, compatibility nrog circuits uas twb muaj lawm, thiab tsis tas yuav rewire thiab tswj lub dimming raws theem txiav. Qhov tsis zoo yog tias thyristor muaj qhov tsis zoo dimming kev ua haujlwm, uas feem ntau ua rau txo qis qis thiab ua rau qhov tsawg kawg nkaus uas yuav tsum tau muaj tshaj qhov ntsuas lub zog ntawm ib qho lossis ib qho me me ntawm LED teeb pom kev zoo. Vim hais tias ntawm cov khoom ntawm thyristor semi-tswj hloov, nws tsuas muaj kev ua haujlwm ntawm tig rau tam sim no, tab sis tsis tuaj yeem tua tam sim no. Txawm hais tias nws raug hloov mus rau qhov qis tshaj plaws, tseem muaj qhov tsis muaj zog tam sim no dhau mus. Cov yam ntxwv ntawm LED micro-tam sim no lub teeb-emitting ua rau kev siv thyristor dimming ib tug loj tus naj npawb ntawm Tom qab lub LED yog muab tua, tseem muaj ib tug tshwm sim ntawm faint light emission.
2. Trailing ntug theem-txiav tswj dimming
Lub hauv paus ntsiab lus ntawm trailing ntug tangential dimmer yog qhib tam sim ntawd tom qab ib nrab nthwv dej ntawm AC voltage pib, thiab tua tam sim ntawd thaum ib nrab-yoj voltage mus txog lub teeb conduction lub kaum sab xis. Lub hom phiaj ntawm dimming yog ua tiav los ntawm kev kho lub kaum sab xis conduction.
Lub trailing ntug tangential dimmer feem ntau siv MOSFET ua ib qho kev hloov khoom siv, uas muaj ib qho kev sib tw ntawm ntug theem tswj, ib qho kev hloov pauv, lub zero-hla nrhiav tau Circuit Court thiab kev tiv thaiv overload Circuit Court. Nws tuaj yeem tsis tsuas yog dim lub teeb ci, tab sis kuj kho cov hluav taws xob hluav taws xob hluav taws xob Nws kuj muaj qhov hloov tau zoo thiab ua haujlwm zoo nyob rau hauv feem ntau.
Piv nrog rau pem hauv ntej-txiav theem-txiav dimmer, trailing-ntug tangential dimming tsis xav tau qhov tsawg kawg nkaus txij nkawm tam sim no, thiab daws cov teeb meem ntawm daim phiaj cuam tshuam thiab suab nrov tib lub sijhawm. Raws li txoj cai, qhov sib piv yog qhov zoo dua, tab sis cov qauv hauv Circuit Court yog qhov nyuaj dua thiab cov nqi tswj tau. Kwv tij siab.
3. 0/1-10V dimming
{{0}}V dimming tseem hu ua 0-10V teeb liab dimming, uas yog ib qho analog dimming txoj kev. Dab tsi txawv ntawm thyristor dimming fais fab mov yog tias muaj ob 0-10V interfaces (ntxiv rau 10V thiab -10V) ntawm 0-10V fais fab mov. Nws tswj cov zis tam sim no ntawm cov khoom siv hluav taws xob los ntawm kev hloov qhov voltage ntawm 0-10V kom ua tiav kev hloov kho. Teeb. Nws yog qhov ci tshaj plaws thaum nws yog 10V, thiab nws tawm thaum nws yog 0V. Lub 1-10V tsuas yog 1-10V rau lub dimmer. Thaum qhov kev tiv thaiv dimmer hloov mus rau qhov tsawg kawg nkaus ntawm 1V, cov zis tam sim no yog 10 feem pua. Yog tias cov zis tam sim no yog 100 feem pua ntawm 10V, qhov ci kuj yuav yog 100 feem pua. Nws yog ib qho tsim nyog sau cia thiab qhov sib txawv zoo tshaj plaws yog tias 1-10V tsis muaj lub luag haujlwm ntawm kev hloov, thiab lub teeb tsis tuaj yeem hloov kho rau qhov qis tshaj tawm, thaum 0-10V muaj lub luag haujlwm ntawm kev hloov .
Cias muab, muaj ntau lub teeb nyob rau hauv ib chav tsev, thiab txhua lub teeb yog nruab nrog ib tug 0/1-10V tswj kab thiab txuas nrog tus maub los. Raws li tus maub los kho, qhov hluav taws xob ntawm cov kab tswj tau hloov pauv thiab cov teeb pom kev dimmed lossis ci ntsa iab.
Qhov tsis zoo ntawm 0/1-10V dimming yog tias ntau lub teeb teeb sib raug rau ib tus maub los tsuas yog hloov tau tib lub sijhawm. Yog tias koj xav ua kom tiav kev tswj sib txawv rau txhua lub teeb, koj tsuas tuaj yeem ua tus tswj thiab cov teeb sib xws ib qho los ntawm ib qho. Thaum tus naj npawb ntawm lub teeb nce, nws ua teeb meem heev rau kev khiav lag luam.
4. DALI dimming
DALI (Digital Addressable Lighting Interface) yog ib qho thoob ntiaj teb pej xeem tus qauv teeb pom kev zoo tswj kev sib txuas lus raws tu qauv. Lub DALI system yog tsim rau kev tswj qhov chaw thiab lub teeb qhov teeb meem qhov teeb meem tawm tswv yim. DALI system muab cov teeb ci nrog cov ntsiab lus tshiab. Txhua lub teeb muaj qhov chaw nyob ywj pheej. Lub DALI system tsis muaj qhov yuav tsum tau muaj rau lub teeb ci thiab teeb, tab sis yuav tsum tau ballasts, tsav tsheb thiab lwm yam khoom kom ua raws li DALI tus qauv, thiab cov chaw nyob ntawm cov teeb pom kev zoo los ntawm lawv.
Plaub tsab ntawv ntawm DALI muaj lawv tus kheej lub ntsiab lus: Digital Digital Addressable Addressable Lighting Lighting Interface Interface. DALI tuaj yeem dim txhua lub luminaire uas nruab nrog DALI tsav tsheb, thiab cov teeb pom kev sib txawv ntawm lub tsheb npav DALI tuaj yeem ua tau yooj yim pab pawg kom ua tiav kev tswj hwm thiab tswj cov xwm txheej sib txawv. Piv nrog rau lwm txoj kev dimming, qhov zoo ntawm DALI dimming yog: 1. Digital dimming, raug, ruaj khov thiab du dimming; 2. DALI tuaj yeem sib txuas lus hauv ob qho kev qhia, thiab tuaj yeem tawm tswv yim txog teeb pom kev zoo rau lub kaw lus; 3. DALI tswj tau yooj yim dua; 4., DALI tiv thaiv kev cuam tshuam muaj peev xwm.
Tsib, wireless tswj dimming
Wireless tswj dimming hais txog kev kho qhov ci, tig rau thiab tawm ntawm txhua pab pawg teeb ntawm WIFI, Bluetooth controller, thiab lwm yam, txhawm rau hloov lub teeb ib puag ncig los tsim ntau yam teeb pom kev zoo. Piv nrog rau lwm txoj kev dimming, nws yooj yim dua thiab yooj yim dua. Cov neeg siv tuaj yeem siv cov xov tooj ntawm tes, Bluetooth vaj huam sib luag keyboards, thiab cov neeg hais lus ntse los kho qhov teeb pom kev zoo; qhov tsis zoo yog qhov kev pab cuam me me thiab cov roj teeb yuav tsum tau tswj me me, yog li nws tsim nyog rau cov tsev me me xws li kho kom zoo nkauj hauv tsev thiab villas. Scope qhov chaw siv.
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