Ukufiphalisa inqubo yokushintsha ukuphuma kokukhanya komthombo wokukhanya. Lokhu kwenzelwa ukusetha i-ambience noma ukonga amandla lapho ukukhanya okugcwele kungadingeki ngempela. Iningi lamasistimu wokufiphalisa asetshenziswa ngaphambi kwama-LED noma nanamuhla adizayinelwe amalambu okukhanya kwe-incandescent. Lawa masistimu ngokuvamile asebenzisa izindlela zokufiphalisa isigaba esiya phambili nesigaba sokuhlehla lapho i-dimmer iphazamisa noma isika okokufaka komugqa we-AC ukuze kwehliswe amandla angena kumshayeli. Ngamandla amancane okokufaka, kuzoba nokukhipha okuncane kumshayeli, nokukhanya kokukhanya kuyehla.
Amagama angukhiye okufiphalisa azwakala kakhulu ekukhanyisweni kwe-LED yi-DMX, i-DALI, i-0/1-10V, i-thyristor (TRIAC), i-WIFI, i-Bluetooth, i-RF, ne-Zigbee. Lawa amasiginali wokufakwa kwamandla okufiphala. Ukukhethwa kwamasiginali ahlukene okokufaka kubangelwa ikakhulukazi ukucatshangelwa kwendawo (ukufakwa, izintambo), umsebenzi, izindleko, kanye nokuguquguquka kokunwetshwa kamuva. Ikhwalithi yomphumela wokufiphalisa inqunywa ngokuyinhloko indlela yokufiphalisa okukhiphayo kokunikezwa kwamandla okufiphalisa, hhayi indlela yokufiphalisa okokufaka.
Izindlela zokufiphalisa okukhiphayo zokunikezwa kwamandla okufiphaza zihlukaniswe ikakhulukazi ngezinhlobo ezimbili, Ukuncishiswa Kwamanje Okuqhubekayo (CCR) kanye Nokulinganisa Ububanzi Be-Pulse (PWM) (okwaziwa nangokuthi Ukufiphala kwe-Analog).
Okokuqala, ukucaciswa: empeleni, yonke imichilo ye-LED iyacimeka.
Uma uthenga izibani ze-LED zasendlini ezijwayelekile njengama-A-style bulb, ungase ubone okuthi NOT DIMMABLE kuhlu ngaphansi kwencazelo yomkhiqizo. Amanye ama-LED awacimeki ngenxa yokuthi ukujikeleza kukagesi ngaphakathi kwesibani se-LED akuklanyelwe ukutolika isignali yokufiphalisa ye-wall dimmer, yona, yona/eyayihloselwe isibani esivamile se-incandescent.
Ngakolunye uhlangothi, imichilo ye-LED ayakhelwe ukuthi ixhunywe ngokuqondile ku-voltage ephezulu (isb. isokhethi yodonga engu-120V AC), futhi idinga ukunikezwa kwamandla ukuze iguqule i-voltage ephezulu engu-AC ibe i-voltage ephansi engu-12V noma engu-24V DC.
Ngakho-ke, uma i-wall dimmer ihilelekile, kufanele iqale "ikhulume" nesiphakeli samandla ngaphambi kokuba noma yikuphi ukufiphala kwenzeke emgqeni we-LED. Ngakho-ke, umbuzo ongacimeki/ongacimeki uncike kuyunithi yokuphakelwa kwamandla, kanye nokuthi ingakwazi yini ukuhumusha isignali yokufiphalisa ekhiqizwe i-wall-dimmer.
Ngakolunye uhlangothi, cishe yonke imichilo ye-LED (njengoba kunjalo, umugqa ngokwawo) uyacimeka. Ngokunikezwa kwesignali kagesi ye-DC efanelekile (imvamisa i-PWM), noma yikuphi ukukhanya komugqa we-LED kungalungiswa ngokukhululeka.
Sicela uqaphele ukuthi ngokuvamile kunezinhlobo ezimbili zemigqa eholayo emakethe, okuqhubekayo okwamanje kanye ne-voltage engaguquki. Izidingo zabo zokunikezwa kwamandla okufiphala zihlukile. Sicela ubheke ithebula elingezansi:
| Uhlobo lomugqa we-LED | Ukuncishiswa Kwamanje Okuqhubekayo (CCR) | Ukushintshashintsha Kobubanzi BePulse (PWM) |
| I-Constant Voltage LED Strip | Work | Work |
| I-Constant Current Strip ye-LED | Fail | Work |
Yini elawula ukukhanya kwe-LED?
Inani lamanje eligeleza nge-LED linquma ukuphuma kwayo kokukhanya. Uma sibheka igrafu engenhla, sizobona ukuthi ukushintsha i-voltage nakho kushintsha ukusebenza kwamanje nge-LED, kusenze sicabange ngokufiphalisa i-LED ngokwandisa noma ukwehlisa i-voltage kuyo yonke. Kodwa-ke, singabona futhi ukuthi isifunda lapho singashintsha khona i-voltage ngaphandle kokuthola amandla amaningi kakhulu sincane. Futhi, i-current ayibikezeleki futhi, njengokukhanya.
Uma siskena amanye amadatha edatha e-LED, singabona ukuthi ukuqina okukhanyayo kwe-LED kuncike kumanje oya phambili. Ubudlelwano babo cishe bunomugqa futhi. Ngakho-ke ekufiphaleni kwama-LED, sithatha i-voltage eya phambili njengenani eligxilile futhi silawule yamanje esikhundleni salokho.
Izindlela zokufiphaza ze-LED
Wonke amadivaysi e-LED adinga umshayeli ukuthi afiphazwe, futhi kunezindlela ezimbili ezijwayelekile abashayeli abazisebenzisayo ukuze bafiphaze ama-LED: I-Pulse Width Modulation kanye neConstant Current Reduction (eyaziwa nangokuthi i-Analog Dimming).
Ukushintshashintsha Kobubanzi BePulse (PWM)
Ku-PWM, i-LED IYAKHALA futhi IVALWE ngesikhathi sayo esilinganiselwe kumafrikhwensi aphezulu. Ukushintsha okusheshayo kuphakeme ngokwanele ukuze iso lomuntu libone. Okunquma izinga lokukhanya kwe-LED umjikelezo womsebenzi noma isilinganiso sesikhathi lapho i-LED IVULIWE kanye nesikhathi esiphelele somjikelezo owodwa ophelele.
Izinzuzo:
- Inikeza izinga lokukhiphayo elinembe kakhulu
- Ifanele izinhlelo zokusebenza ezidinga ukunakekela izici ezithile ze-LED njengombala, izinga lokushisa, noma ukusebenza kahle
- Ibanga elibanzi lokufiphalisa - lingehlisa ukuphuma kokukhanya libe amanani angaphansi kwephesenti elingu-1
- Igwema ukushintsha kombala ngokusebenzisa i-LED endaweni yayo enconywayo ye-voltage eya phambili/ eya phambili yamanje yokusebenza
Okumbi:
- Abashayeli bayinkimbinkimbi futhi bayabiza
- Njengoba i-PWM isebenzisa ukushintsha okusheshayo, unqenqema olukhuphuka ngokushesha kanye nonqenqema oluwayo lomjikelezo ngamunye wokushintsha lukhiqiza imisebe ye-EMI engadingeki.
- Umshayeli angase abe nezinkinga zokusebenza lapho egijima ngezintambo ezinde njengoba izici zocingo (umthamo kanye ne-inductance) zingaphazamisa imiphetho esheshayo ye-PWM.
Umsebenzi Wokuhamba
Igama elithi duty cycle lichaza ingxenye 'yesikhathi' ukuya esikhawulweni esivamile noma 'inkathi' yesikhathi; umjikelezo womsebenzi ophansi uhambisana namandla aphansi, ngoba amandla acishiwe isikhathi esiningi. Umjikelezo wemisebenzi uvezwa ngamaphesenti, u-100% uvuliwe ngokugcwele. Uma isignali yedijithali iyingxenye yesikhathi futhi ingekho kwenye ingxenye yesikhathi, isignali yedijithali inomjikelezo womsebenzi ongu-50% futhi ifana negagasi “eliyisikwele”. Uma isignali yedijithali ichitha isikhathi esiningi isesimeni kunesimo esingasebenzi, inomjikelezo womsebenzi ongu->50%. Uma isignali yedijithali ichitha isikhathi esiningi ingekho kuhulumeni, inomjikelezo womsebenzi ongu-<50%. Nasi isithombe esibonisa lezi zimo ezintathu:
imvamisa
Esinye isici esibalulekile sesignali ye-pulse width modulation (PWM) imvamisa yayo. Imvamisa ye-PWM ibeka ukuthi isignali ye-PWM iqeda ngokushesha kangakanani isikhathi, lapho isikhathi kuyisikhathi esithathwayo ukuze isignali ivule futhi ivale.
Ukuvumelanisa umjikelezo womsebenzi kanye nemvamisa yesiginali ye-PWM kudala ukuthi kube nokwenzeka komshayeli we-LED ongacimeki.
Ukuncishiswa Kwamanje Okuqhubekayo (CCR)
Ku-CCR, okwamanje kugeleza ngokuqhubekayo ku-LED. Ngakho-ke i-LED ihlezi IVULIWE, hhayi njengaku-PWM lapho i-LED ihlale IKHANYIWE futhi IVALIWE. Ukukhanya kwe-LED kuyahlukahluka ngokushintsha izinga lamanje.
Izinzuzo:
- Ingasetshenziswa nezinhlelo zokusebenza ezinezidingo eziqinile ze-EMI kanye nezinhlelo zokusebenza ezikude lapho kusetshenziswa izintambo ezinde
- Abashayeli be-CCR banomkhawulo wamandla kagesi aphezulu okukhiphayo (60 V) kunabashayeli abasebenzisa i-PWM (24.8 V) uma behlukaniswa njengabashayeli be-UL Class 2 ezindaweni ezomile nezimanzi.
Okumbi:
- I-CCR ayizilungele izinhlelo zokusebenza lapho amazinga okukhanya okufiphala angaphansi kwamaphesenti angu-10 efunwa ngoba kumaza aphansi kakhulu, ama-LED awasebenzi kahle futhi okukhiphayo ukukhanya kungase kube nephutha.
- Amadrayivu aphansi angaholela kumbala ongahambisani
I-DMX512 Dimming
I-DMX512 iyindinganiso yamanethiwekhi okuxhumana edijithali avame ukusetshenziswa ukulawula ukukhanya nemiphumela. Ekuqaleni kwakuhloswe ukuba kube indlela emisiwe yokulawula izibani zokukhanyisa esiteji, okwathi ngaphambi kwe-DMX512, zasebenzisa izimiso eziyisisekelo zobunikazi ezingahambelani. Ngokushesha yaba indlela eyinhloko yokuxhumanisa izilawuli (ezifana nekhonsoli yokukhanyisa) kuma-dimmers namadivayisi wemiphumela ekhethekile njengemishini yenkungu nezibani ezihlakaniphile.
I-DMX512 iphinde yanda ukuze isetshenziswe ekukhanyisweni okungekona okwenkundla yaseshashalazini kanye nezakhiwo, ezikalini ezisukela ezintanjeni zamalambu kaKhisimusi kuya kumabhodi ezikhangiso e-electronic kanye namakhonsathi enkundla noma ezinkundla. Manje isingasetshenziswa ukulawula cishe noma yini, ikhombisa ukuthandwa kwayo kuzo zonke izinhlobo zezindawo.
I-DALI Dimming
I-Digitally Addressable Lighting Interface (DALI) yadabuka e-Europe futhi isisetshenziswe kakhulu iminyaka eminingi kuleyo ngxenye yomhlaba. Manje isithandwa kakhulu nase-United States. Izinga le-DALI livumela ukulawulwa kwedijithali kokulungiswa ngakunye ngephrothokholi yokuxhumana yamandla kagesi aphansi engathumela imininingwane ezintweni ezikhanyayo kuyilapho ithola idatha evela ezilungiselelweni, okwenza lokhu kube ithuluzi elibalulekile lokwakha amasistimu okuqapha ulwazi nokuhlanganiswa kokulawula. I-DALI ivumela ukubhekana nezinhlelo ngazinye, ezinamakheli afika kwangu-64 okungenzeka ahlelwe abe izindawo zokulawula ezihlukene eziyi-16. Ukuxhumana kwe-DALI akuzweli ku-polarity, futhi ukucushwa okuhlukahlukene kokuxhumana kungenzeka ngale phrothokholi. Umdwebo ojwayelekile wezintambo ze-DALI uboniswa ngezansi:
0/1-10V Ukufiphala
Isistimu yokuqala nelula yokulawula ukukhanya kwe-elekthronikhi, ama-dimmers kagesi aphansi angu-0-10V, sebenzisa isignali ye-voltage ephansi engu-0-10V DC exhunywe kugesi ngamunye we-LED noma i-Fluorescent ballast. Ku-0 Volts, idivayisi izofiphalisa ize ifike kuleveli encane yokukhanya evunyelwe umshayeli wokufiphalisa, futhi kuma-Volts angu-10 idivayisi izobe isebenza ngo-100%. Umdwebo ojwayelekile wezintambo ezingu-0-10V uboniswa ngezansi:
I-TRIAC Dimming
I-TRIAC imele i-Triode ye-Alternating Current, futhi iyiswishi esetshenziselwa ukulawula amandla. Uma isetshenziswa ekukhanyiseni izicelo, ivame ukubizwa ngokuthi 'TRIAC dimming'.
Amasekhethi e-TRIAC asetshenziswa kabanzi futhi avame kakhulu ezinhlelweni zokulawula amandla e-AC. Lawa masekethi angashintsha ama-voltage aphezulu kanye namazinga aphezulu kakhulu wamanje ezingxenyeni ezimbili ze-AC waveform. Amadivayisi we-semiconductor, afana ne-diode.
I-TRIAC ivame ukusetshenziswa njengendlela yokufiphalisa ukukhanya ezinhlelweni zokukhanyisa zasendlini futhi ingasebenza njengokulawula amandla kumamotho.
Ikhono le-TRIAC lokushintsha ama-voltage aphezulu liyenza ilungele ukusetshenziswa ezinhlelweni zokulawula ugesi ezihlukene. Lokhu kusho ukuthi ingasebenza ukuze ivumelane nezidingo zokulawula ukukhanya kwansuku zonke. Amasekhethi e-TRIAC asetshenziselwa okungaphezu kokukhanyisa kwasekhaya, noma kunjalo. Zibuye zisetshenziswe lapho kulawulwa abalandeli namamotho amancane nakwezinye izinhlelo zokusebenza zokushintsha nokulawula i-AC.
Uma ufuna isilawuli sezinhloso eziningi, siyaqiniseka ukuthi uzothola i-TRIAC iphrothokholi enenzuzo.
I-TRIAC iyi-voltage ephezulu (~230v) iyafiphala. Ukuhlanganisa imojuli ye-TRIAC ekunikezeni kwakho amapayipi amakhulu (phakathi kuka-100-240v AC), uzokwazi ukuthola umphumela wokufiphalisa owudingayo.
I-RF Dimming
Ukufiphalisa ifrikhwensi yomsakazo (RF) sebenzisa isignali yefrikhwensi yomsakazo ukuxhumana nesilawuli se-LED ukuze ufiphaze umbala wezibani zakho ze-LED.
I-Bluetooth, i-WIFI, i-Zigbee Dimming
Bluetooth iyindinganiso yobuchwepheshe obungenawaya yebanga elifushane esetshenziselwa ukushintshanisa idatha phakathi kwamadivayisi angaguquki namaselula ebangeni elifushane kusetshenziswa amaza omsakazo we-UHF kumabhendi e-ISM, ukusuka ku-2.402 GHz ukuya ku-2.48 GHz, nokwakha amanethiwekhi endawo yomuntu siqu (ama-PAN). Isetshenziswa kakhulu njengenye indlela yokuxhumana ngocingo, ukushintshanisa amafayela phakathi kwemishini ephathekayo eseduze futhi ixhume omakhalekhukhwini nezidlali zomculo ngama-headphone angenantambo. Kumodi esetshenziswa kakhulu, amandla okudlulisela anomkhawulo kuma-milliwatts angu-2.5, okuwanika ibanga elifushane kakhulu elingafika kumamitha angu-10 (33 ft).
I-Wi-Fi noma i-WiFi(/ˈwaɪfaɪ/), iwumndeni wamaphrothokholi enethiwekhi engenantambo, esekelwe emndenini wamazinga we-IEEE 802.11, avame ukusetshenziselwa ukuxhumanisa endaweni yasendaweni yamadivayisi nokufinyelela ku-inthanethi, okuvumela amadivaysi edijithali aseduze ukuthi ashintshisane ngedatha ngamaza omsakazo. Lawa amanethiwekhi amakhompiyutha asetshenziswa kakhulu emhlabeni, asetshenziswa emhlabeni jikelele kumanethiwekhi asekhaya namahhovisi amancane ukuxhumanisa amakhompuyutha edeskithophu nawekhompuyutha ephathekayo, amathebulethi, ama-smartphone, ama-smart TV, amaphrinta, nezipikha ezihlakaniphile ndawonye kanye nerutha engenantambo ukuze ixhume kuyo. I-inthanethi, nasezindaweni zokufinyelela okungenantambo ezindaweni zomphakathi njengezitolo zekhofi, amahhotela, imitapo yolwazi nezikhumulo zezindiza ukuze kuhlinzekwe ukufinyelela kwe-inthanethi komphakathi kumadivayisi eselula.
amazombe incazelo esekelwe ku-IEEE 802.15.4 yochungechunge lwezivumelwano zokuxhumana ezisezingeni eliphezulu ezisetshenziselwa ukwakha amanethiwekhi endawo yomuntu siqu ngamarediyo edijithali amancane, anamandla aphansi, afana ne-automation yasekhaya, ukuqoqwa kwedatha yedivayisi yezokwelapha, namanye amandla aphansi aphansi. -Izidingo zomkhawulokudonsa, eziklanyelwe amaphrojekthi amancane adinga uxhumano olungenantambo. Ngakho-ke, i-Zigbee ingamandla aphansi, izinga ledatha eliphansi, futhi iseduze (okungukuthi, indawo yomuntu siqu) inethiwekhi yesikhangiso engenantambo.
Isiphetho Sokugcina
Yonke imichilo ye-LED iyacimeka. Kodwa sicela uqaphele ukuthi kunezinhlobo ezimbili ze-LED strip, i-voltage engaguquki ye-LED strip, kanye umugqa oholayo wamanje. Umugqa oholwa njalo wamanje kufanele usetshenziswe ne-PWM yesignali ephumayo ecigekayo! Ngemichilo ye-LED ye-voltage engaguquki, ungakhetha i-PWM noma i-CCR yokukhipha amandla esignali yokufiphala ngokuya ngezidingo zephrojekthi. Futhi maningi amasiginali okokufaka, afana ne-DMX512, i-DALI, i-0/1-10V, i-TRIAC, i-WIFI, i-Bluetooth, i-RF, ne-Zigbee.
Ungakhetha isignali yokufaka efanelekile ngokucabangela indawo ezungezile (ukufakwa, izintambo), umsebenzi, izindleko, nokuguquguquka kokunwetshwa kamuva.
I-LEDYi ikhiqiza izinga eliphezulu Imichilo ye-LED ne-LED neon flex. Yonke imikhiqizo yethu idlula ezindaweni zokusebenzela zobuchwepheshe obuphezulu ukuze kuqinisekiswe ikhwalithi ephezulu kakhulu. Ngaphandle kwalokho, sinikeza izinketho ongazikhetha kuma-strip ethu e-LED kanye ne-neon flex. Ngakho-ke, ngomugqa we-premium we-LED kanye ne-LED neon flex, xhumana ne-LEDYi ASAP!
