Awunakuya naphi na emhlabeni namhlanje ngaphandle kokudibana nesibane se-LED. Ii-LED zilungile ekongeni amandla. Nangona kunjalo, ii-LED azikahambelani kunye neeglowubhu zesibane ze-incandescent ngokwemizobo yombala kunye nobumnyama.

Iidimmers ezineesekethe ezidityanisiweyo ze-thyristor (TRIACs) zithatha indawo yebhalbhu zokukhanya ezixineneyo. Ii-LED, kunye nezibane ze-halogen kwiindawo zokuhlala apho izibane ze-incandescent zisasetyenziswa. I-Triac isetyenziswa ngokuqhelekileyo kwezi ntlobo zeenkqubo.

Ukuze izibane ze-LED zisebenze, kufuneka zibe namandla kwaye zihlale ixesha elide. Iyakwazi ukulawula izixhobo eziphezulu zamandla nangona zenziwe ngamalungu aphantsi. Ke, sinokuthi i-TRIAC lukhetho olulungileyo lokukhanyisa kunye nezinye izixhobo zombane ezinkulu esizifunayo ukuze sisebenze ngokuthembekileyo.

Yintoni kanye kanye i-Triac?

I-TRIAC licandelo lombane elineetheminali ezintathu ezinokuqhuba umsinga kulo naliphi na icala xa ilayitiwe. Olu lungelelwaniso lulingana nee-SCR ezimbini kunye namasango azo afakwe kwi-reverse parallel kwaye aqhagamshelwe omnye komnye. 

I-TRIAC ivulwe ngumqondiso wesango ofana nalowo we-silicon carbide (SCR). Ngenxa yesiginali yesango, igajethi inokwamkela okwangoku kuyo nayiphi na indlela. Ii-TRACs zaphuhliswa ukuququzelela ulawulo lwamandla e-AC.

Unokukhetha kwiindidi ezininzi zeenketho zokupakisha ze-TRIAC. Ii-TRIACs zikhuselekile ngokupheleleyo ukuba zingafakwa kuluhlu olubanzi lwee-voltages kunye nemisinga ngaphandle koloyiko lokuzenzakalisa. Uninzi lwee-TRIACs zinereyithingi yangoku engaphantsi kwe-50 A, esezantsi kakhulu kune-silicon elawulwayo yokuhlaziya izinto. Ke ngoko, azisebenziseki naphi na apho imisinga ephezulu inokubangela umonakalo. 

I-TRIACs' inezinto ezininzi njengesixhobo esinokusebenza nokuba ngombane ovumayo okanye ongalunganga kwiitheminali zawo ezibenza zibe sisixhobo esiluncedo. Oku kubonelela ngokuguquguquka okukhulu kuhlengahlengiso lwexesha elizayo. Ekubeni ii-SCRs zivumela i-current ukuba ihambe kumacala omabini, ayisebenzi njenge-TRIACs ekulawuleni amandla aphantsi kwiisekethe ze-AC. Kulula ukusebenzisa ii-TRACs.

Isebenza njani iTriac Dimming? 

Ukusuka kwisigaba se-AC se-0, ubumnyama bomzimba kwenzeka xa umbane wegalelo wehliswa de kuvulwe isidima se-TRIAC. Oku kuqhubeka de i-voltage ephumayo ifikelele kwinqanaba elifunekayo. Ukutshintsha ixabiso elisebenzayo le-AC yindlela le nkqubo ye-dimming iwenza ngayo umsebenzi wayo. Ukutshintsha i-angle yokuqhuba kwi-AC half-wave nganye yinto yokuqala ekufuneka yenziwe.

Izilawuli ze-TRIAC dimming zisebenza ngendlela efanayo nokutshintsha ngokukhawuleza. Ezi zizinto ezisetyenziselwa ukulawula umthamo wangoku odlula kwisibane se-LED. Xa isixhobo silayitiwe, siya kuqalisa ukuhambisa ii-electron kumalungu angaphakathi.

Ngokuqhelekileyo, ifezekisa oku ngokuqhawula i-voltage waveform kunye nokumisa ukuhamba kombane. Xa umthwalo ufikelela kumthamo wawo ophezulu.

Ukulungelelanisa ubunzulu bezibane ngomnye wemisebenzi emininzi eyenziwa ngumlawuli we-TRIAC wokukhanyisa kwe-LED. Ngenxa yokuba utshintsho luthatha ixesha elide ukusabela, kuya kubakho ukuhamba kwamandla amancinci, kwaye ngenxa yoko, ukukhanya kwebhalbhu kuya kuncitshiswa.

Isixa esipheleleyo samandla esiye sakhululwa sinokuqikelelwa ukuba umtshintshi ophendula ngokukhawuleza kangakanani. Isixa esikhulu samandla silahlekile nanini na xa iswitshi inexesha lokuphendula ngokukhawuleza.

Ngenxa yexesha elibi lokuphendula, linciphisa umthamo wamandla anokusetyenziswa. Ngenxa yoku, ukukhanya kwe-LED kuya kulahlekelwa ukuqaqamba kwayo. Ngenxa yokuba ubumnyama be-TRIAC bunciphisa ukubakho kwesiqingatha-amaza ekungaphumelelini kunye ne-Hz flicker.

Ayichaphazeli ubomi beebhalbhu ze-LED kwinqanaba elifanayo ne-Thyristor dimmers, luhlobo olusetyenziswayo.

Ngokusetyenziswa kwee-voltages ezichasana ngokwe-diametrically enye kwenye kwi-electrode yesango le-TRIAC.

Ukulawula ukuhamba kombane yinto enokuphunyezwa. Amandla anokuhamba nge-TRIAC xa sele evuliwe, kodwa kuphela kude kube kwindawo xa ikhoyo ngoku iwela ngaphantsi kwenqanaba elikhuselekileyo.

Isekethe iyakwazi ukuphatha amandla ombane aphezulu. Nangona kunjalo imisinga yolawulo efunekayo iphantsi. Iguqula inani langoku elihamba ngomthwalo wesiphaluka. Inokufezekiswa ngokusetyenziswa kwesekethe ye-TRIAC kunye nolawulo lwesigaba.

Xa usebenzisa ibhalbhu ye-LED ene-TRIAC dimmer kwaye ufuna i-TRIAC dimming LED umqhubi kuya kufuneka wenze oku kulandelayo. Kubalulekile ukuqiniseka ukuba isixhobo sobumnyama se-TRIAC ekuthethwa ngaso, enyanisweni, sisixhobo se-semiconductor se-TRIAC.

Kukho ngaphezu kwe-TRIAC dimmer enye enokwakhelwa imithwalo exhathisayo. Xa umthombo wokukhanya we-LED udibene ne-TRIAC dimmer ngendlela engafanelekanga. Kukho ithuba lokuba ibhalbhu yesibane ayisebenzi ngokufanelekileyo, njengoko kungqinwa ngokuncwina okanye ukuqhwanyaza. Kungenzeka ukuba ubomi bezibane ze-LED buya kuncitshiswa ukuba le miba ayisonjululwanga.

Kutheni Khetha i-TRAC? 

Ii-TRACs zinokutshintsha amandla ombane aphezulu. I-TRIAC yinxalenye eluncedo enokuthi ifumaneke kwiinkqubo ezahlukeneyo zokulawula umbane. Ngokwezi ziphumo, ingcamango yokuba i-TRIAC ingasetyenziselwa ukutshintsha izibane. Inokusetyenziswa ngendlela efanayo esenza ngayo imihla ngemihla ixhaswa bubungqina.

Iisekethe ze-TRAC zinokusetyenziswa ngeendlela ezahlukeneyo zokulawula kunye nokutshintsha umbane we-AC. Umzekelo, unokuzisebenzisa ukunika amandla iimotor ezincinci kunye nabalandeli. Abasebenzisi banokwenza okuninzi nge-TRIAC kuba yiprotocol elula kunye nolawulo olunokwenza into engaphezu kweyodwa.

Yintoni iDimming? 

Ukutshintsha ubungakanani bokukhanya kunye nomoya, konke okufuneka ukwenze kukuguqula ukutshintshela kwi-dimmer. Ngoku kukho iindidi ezininzi ezikhoyo zabaqhubi be-dimming.

Abaqhubi be-Dimming banokwahlulwa ngokweendidi ezininzi. Ezi zii-Triac dimmers, ii-LED dimmers ezinoluhlu lwe-voltage ye-0-10 V, kunye ne-pulse width modulation (PWM) dimmers.

Nganye kwezi ndlela itshintsha imveliso yangoku, i-voltage, kunye namaza. Indlela nganye ngeendlela ezahlukeneyo zokutshintsha ubungakanani bokukhanya okuvela kumthombo.

Ukukhupha i-Triac 

Ukufiphaza ngetriac kuqala kwenziwa kwiibhalbhu ze-incandescent kunye ne-compact fluorescent. Kodwa ngoku isetyenziswa kakhulu ngee-LED ngokunjalo. Kuba ukufiphala kwe-triac yinkqubo yomzimba.

I-Triac dimming iqala ngesigaba se-AC kwaye iqhubela phambili de umqhubi we-Triac uvuswe apho igalelo lombane lihla kakhulu. I-voltage input waveform isikwa kwi-engile yokuqhuba. Oku kwenza i-voltage waveform ethe ngqo kwi-voltage input waveform.

Sebenzisa umgaqo-siseko wetangential ukunciphisa umthamo wamandla afunekayo ukuqhuba umthwalo oqhelekileyo. Oku kuzisa ixabiso elisebenzayo lombane wokuphuma (umthwalo ochasayo) ukuya kwinqanaba eliphantsi.

I-Triac dimmer isemgangathweni kwishishini kuba inezinto ezininzi ezintle. Iimpawu ezinjengokutshintsha okuchanekileyo, ukusebenza kakuhle okuphezulu, ubungakanani obuncinci, ubunzima obulula, kunye nokusebenza ngokulula ukusuka kumgama omde.

Ngenxa yoko, ibe lukhetho olungagqibekanga lwabavelisi. Ukufiphala ngetriac kuneenzuzo ezininzi. Izibonelelo ezinjengotyalo-mali oluphantsi lokuqala, ukusebenza okuthembekileyo, kunye neendleko eziphantsi eziqhubekayo.

Ukukhupha iPWM 

I-PWM imele “i-pulse-width modulation”. Yindlela yokulawula iisekethe ze-analog esebenzisa imveliso yedijithali ye-microprocessor. Le ndlela isebenza kakhulu.

Le ndlela isetyenziswa kwiinkalo ezininzi. Isetyenziselwa ukulinganisa, unxibelelwano, ulawulo lwamandla kunye nokuguqulwa, kunye nokukhanyisa kwe-LED, ukubiza ezimbalwa. Ngokutshintshela izixhobo ze-analog kulawulo lwedijithali, iindleko zenkqubo kunye nesixa samandla esisetyenziswayo sinokunqunyulwa sisixa esikhulu.

Ulawulo lwedijithali kwakhona kulula ukuyisebenzisa. Kungenxa yokuba uninzi lwabalawuli abancinci banamhlanje kunye ne-DSPs banabalawuli be-PWM abakhelwe ngqo kwi-chip. Oku kwenza ulawulo lwedijithali lube lula ngakumbi ngokubanzi.

Ukuthatha i-pulse-width modulation (PWM) ukufundwa yindlela ethe ngqo yokuloga ubuninzi besignali ye-analog. Xa uzama ukumisela ubunzulu bomqondiso we-analog. Usebenzisa izixhobo zokubala ezinokulungiswa okuphezulu, umntu unokukhohlisa umjikelo womsebenzi we-square wave.

Ngaphandle kwenyani yokuba unikezelo olupheleleyo lweDC lunokubakho okanye lungabikho nangaliphi na ixesha, uphawu lwe-PWM luhlala ludijithali. I-voltage okanye umthombo wangoku ojikelezayo kunye nokucima ngamaxesha aqhelekileyo unikezelwa kumthwalo we-analog.

Umthwalo uqhagamshelwe kunikezelo lwamandla e-DC nanini na xa lo mva usebenza. Nje ukuba uyicime, unxibelelwano luyayeka.

Nge-bandwidth ye-frequency efanelekileyo, naliphi na ixabiso le-analog elingenasizathu liyakwazi ukufakwa ngekhowudi usebenzisa i-pulse width modulation (PWM). Ukujonga kwakho, isicwangciso esibonisa imiqondiso emithathu eyahlukileyo ye-PWM sinikiwe ngezantsi.

LED 0/1-10v Dimming 

Inkqubo yokufiphala kwe-0-10v yindlela yokuncipha kwe-analog kuba umqhubi unezibuko ezimbini ezongezelelweyo ze +10v kunye ne-10v. I-Triac dimmer yemveli inezibuko elinye kuphela le +10v kunye ne -10v.

Isiphumo sokunciphisa sinokufezekiswa ngokulawula okwangoku ukuba umqhubi athumele ngaphandle. Yiloo nto eyenza ukuba kwenzeke. Kule meko, i-0V imnyama kwaye i-10V ikhanya kakhulu. Kwi-dimmer yokumelana, i-output current yi-10% xa i-voltage i-1V, kwaye i-100% xa i-voltage i-10V.

Ngokwahlukileyo kwi-0-10V, ene-on / off switch eyakhelwe ngaphakathi, i-1-10V ayinayo, ngoko ukukhanya akukwazi ukucima ngokupheleleyo.

Dali Dimming 

Ukufakela i-DALI dimming, udinga intambo yokulawula ene-cores ezimbini. Emva kofakelo lokuqala lwenziwe, iinkqubo zokulawula izibane zenza ukuba kube lula ukuphinda kufakwe idijithali iisekethe zokukhanyisa.

ngelixa uhlala ngaphakathi kweeparamitha esele zisetiwe. Ngokukhanya kwe-DALI, izibane ze-LED ezisezantsi, izibane ze-LED, kunye ne-LED linear systems zonke ziya kuba nolawulo olungcono kakhulu kwimithombo yazo yokukhanya.

Ngcono nangakumbi, alukho olunye uhlobo lobuchwephesha bobumnyama banamhlanje obunokuhambelana noluhlu lobumnyama olunokwenziwa zezi nkqubo. Ngenxa yolu tshintsho, iinguqulelo zamva nje ze-DALI zinokusetyenziselwa ukulawula zombini i-RGBW kunye nezibane eziMhlophe zeTunable.

Iibhola ezimnyama ezisebenzisa umgangatho we-DALI zinokuphatha ngokulula ezona zicelo zinzima zokutshintsha umbala.

UMlawuli we-TRIAC kunye noMmkeli

Abalawuli be-TRIAC bakuvumela ukuba utshintshe imiba emininzi yokukhanya. Bafezekisa umphumo we-dimmer setting ngokubuyisela ngokukhawuleza ukuhamba kombane, yindlela abasebenza ngayo.

Isebenza kwii-LED kunye nezinye iindlela zobuchwepheshe bokukhanyisa ngendlela efanayo.

Ii-TRIAC zidla ngokusetyenziswa kwiimeko zombane ophezulu, njengaxa kulayitiwe, kufudunyezwe, okanye kulawulo lweenjini. Ii-TRACs zisetyenziselwa ukukhanyisa nokucima umbane ngokukhawuleza kunokutshintsha kombane rhoqo. Inceda ukwehlisa ingxolo kunye ne-EMI ebeza kuba khona.

Uyakwazi ukulungisa ubungakanani bamandla athunyelwa kumthwalo ngokusebenzisa umamkeli we-TRIAC. Ukuze ufezekise oku, igcina iwashi eqinile kwi-voltage ekhoyo phakathi kwee-terminals ze-TRIAC kwaye ivule umthwalo. 

Yenziwa xa loo mandla ombane efikelela kumda obekiweyo.

Lo mamkeli unokusetyenziswa ngeendlela ezahlukeneyo ezahlukeneyo. Eminye imizekelo yezi ziadaptha zeendawo zokuthengisa umbane, ii-throttles zeemotor, kunye ne-dimmers yezibane.

Umamkeli we-TRIAC usetyenziswa kwiintlobo ngeentlobo zezixhobo zemizi-mveliso, kubandakanywa abasiki beplasma kunye nezixhobo zokuwelda, phakathi kwezinye.

I-TRIAC Dimmers ezisetyenziswa kwii-LEDs 

Iidiode ezikhupha ukukhanya, ezikwabizwa ngokuba zii-LED, zifumana ukuthandwa njengokhetho lokukhanyisa ngenxa yokusebenzisa amandla aphantsi, ixesha elide lokuphila, kunye namanqanaba aphezulu okusebenza.

Enye yezinto ezingalunganga ezimbalwa ze-LEDs kunokuba nzima ukulungisa umgangatho wokukhanya. Ubunzulu bokukhanya kwe-LED bunokulungiswa nge-TRIAC dimmer.

I-TRIAC dimmers itshintsha umthwalo wangoku ukwenza utshintsho kwisibane. Bakwenza oku ngokutshintsha ngokukhawuleza phakathi kweemeko ezisebenzayo nezingasebenziyo. Oku kuzisa i-avareji yangoku phantsi kwinqanaba apho inokuphathwa ngokukhuselekileyo. Ngenxa yoko, zilukhetho oluhle kakhulu lokusetyenziswa kwiimeko ezifuna iidimmers ze-LED. Ekubeni abachatshazelwa lutshintsho olukhawulezayo lwangoku.

Xa usebenza ngee-LEDs, i-TRIAC dimmers ibonelela ngeengxaki ezimbalwa ezifuna ukulungiswa.

Ngaphambi kokuba ufake i-LED, kufuneka uqale ujonge ukubona ukuba i-dimmer ingasetyenziswa kakuhle nayo. Ukujonga umlinganiso wangoku we-dimmer linyathelo lesibini ekuqinisekiseni ukuba i-dimmer iyakwazi ukulawula ubungakanani bamandla aya kusetyenziswa yi-LED. Okwesithathu, kufuneka uqinisekise ukuba i-dimmer kunye ne-LED zidibaniswe ngokufanelekileyo ngokudibanisa kunye.

I-TRIAC dimmers sisixhobo esihle kakhulu sokunciphisa ukukhanya okuveliswa zizibane zakho ze-LED ukuba ulandela imiyalelo enikwe ngasentla. Ukukhanya kunokuguqulwa ngokulula, kwaye akukho kuqhwanyaza okanye esinye isiphumo esicaphukisayo.

Ukongeza kuyo yonke into, ziyahambelana ukusetyenziswa kunye nokukhethwa okuhlukeneyo kwezixhobo zokukhanya kwe-LED kunye neebhalbhu.

Yintoni uMda oKhokelayo? 

Ngokwesiko, izibane ze-incandescent kunye ne-halogen zisetyenzisiwe kunye nezi dimmers. Ekubeni ezi dimmers zenziwe ukuba zisebenze kunye ne-incandescent light bulbs, zidinga amandla amaninzi ukuze zisebenze. Ngenxa yoko, ixabiso labo lilinganiselwe xa lidibene nezibane eziphantsi kwamandla afana nee-LED.

UKUSEBENZISA I-EDGE EDGE DIMMERS NGE-LED

Ngenxa yokuba izibane ze-LED zisebenzisa amandla amancinane kangako, zisenokungafikeleli ubuncinci beemfuno zomthwalo we-cutting-edge dimmers.

Ngenxa yeemfuno zomthwalo omncinci ofunekayo we-dimmer-edge dimmer. Awuyi kukwazi ukufumana isiphumo oyifunayo ngokusebenzisa nje enye yezi dimmers ngomtya omnye wokukhanya we-LED.

Ii-LED zisebenzisa amandla amancinci kunezinye iintlobo zokukhanyisa, ngoko zinokukhupha ukukhanya ngelixa zisebenzisa amandla amancinci. Ngee-dimmers zobuchwephesha obuphezulu banamhlanje, kuyakwenzeka ukwenza ukukhanya okungaphezulu kunoko kufuneka ngokwenene.

Ukunciphisa izibane ngombane osezantsi, onje ngee-LED, kuya kufuneka usebenzise i-trailing edge dimmer kunesitayile sangaphambili sokutshintsha kwe-dimmer. Le yimeko njengoko i-trailing edge dimmers isebenza ngakumbi. Oku kwenzeka ngenxa yokuba i-edge dimmers elandelayo inomdla ngakumbi kutshintsho oluncinci kumbane.

Yintoni i-Trailing Edge? 

Ii-dimmers ezitsha ezikhokelayo zingcono ngeendlela ezininzi kuneenguqulelo ezindala ezikhokelayo.

I-fade-out ngoku ithule kakhulu kwaye iyacotha, kwaye kukho i-buzzing encinci kunye nokuphazamiseka ngenxa yolu tshintsho.

Ubuncinci bemithwalo ye-trailing-edge dimmers iphantsi kakhulu kunee-header-edge dimmers.Oku kubenza babe ngcono ukunika amandla ii-LEDs.

UKUSEBENZISA I-TRAILING EDGE DIMMERS NGE-LED

Xa ukukhanyisa izibane ze-LED kunye ne-trailing edge dimmer, umgaqo we-10% kufuneka ulandelwe. Kuyinyani ukuba i-trailing edge dimmer ene-400W yomthamo inokuphatha ngokulula i-400W ye-incandescent bulbs, kodwa ii-LED ezininzi zinokuphatha yi-10W kuphela. Oko kukuthi, i-400W dimmer yethu inokulawula kuphela ubuninzi be-40W yezibane ze-LED.

Imithwalo yamanzi aphantsi ilawulwa ngokufanelekileyo yi-trailing-edge dimmers. Kuba akufuneki ube nexhala malunga nomthwalo omkhulu ophantsi ofunwa zii-dimmers ezikhokelela, ungasebenzisa ii-LED ezininzi njengoko ufuna ukufumana isiphumo oyifunayo.

Umahluko phakathi kwe-Leading-edge kunye ne-Trailing-edge Dimmers 

Izitshixo zokukhanya ezikhokelela kumda zazisetyenziselwa ukufiphalisa i-incandescent, i-halogen, okanye iziguquli zemagnethi ezinocingo.

Oku kwenziwa kuba iiswitshi zedimmer ezikhokelayo bekulula ukuzifaka. Ukuthenga kwakhona kubiza kancinci kune-trailing-edge dimmer switches.

Ngenxa yokutshintsha kwe-TRIAC, ekwabizwa ngokuba yi-"Triode for Alternating Current" iswitsha, esetyenziselwa ukulawula ubungakanani bombane osetyenziswayo. Leliphi elinye igama lezi zixhobo elithi "TRIAC dimmers."

Ngenxa yokuba banomthwalo omncinci ophezulu. Iinguqu ze-dimmer ezikhokelayo ezisetyenziswayo ngoku azihambelani neesekethe zokukhanyisa ezisebenzisa ii-LED okanye ii-CFL ezinamandla aphantsi. Kodwa uhlobo lolawulo lobumnyama olona ludumileyo ngoku lolona lwakutshanje.

Umsebenzi we-trailing-edge dimmers unzima ngakumbi kunoogxa babo abaphambili. Ngenxa yokuba zizolile kwaye zigudile, zinokusetyenziswa kwiintlobo ezininzi zezakhiwo.

Ngenxa yokuba inomthwalo omncinci osezantsi, i-trailing-edge dimmer ingcono kune-dimmer-edge dimmer. Kwiisekethe zokukhanyisa ezimnyama ezineebhalbhu ezincinci, ezingenamandla kangako.

Yintoni iCurve eDimming? 

Igophe elimnyama ligama elinikwe iparameter esinokuthi isixhobo sobumnyama siqhele ukudwelisa njengoko sisebenza. Emva kokucubungula umqondiso wegalelo, isixhobo sokunciphisa ukukhanya siya kwenza ukukhanya okuphumayo kuhambelane nomsebenzi owenziwe kwangaphambili.

Oku kuya kwenzeka emva kokuba isixhobo siphathe isignali. Njengomzekelo womsebenzi, ijika elijikayo lingabonwa kulo mzobo.

Xa ujonge ukuthenga izixhobo zokufiphala, le yenye yezona zinto zibalulekileyo onokucinga ngazo. Unefuthe elikhawulezayo kwisiphumo sokuba nokukhanya kokukhanya. Ikwayimbonakaliso ebonakalayo yendlela isixhobo sobumnyama sedijithali esisebenza ngayo.

Iindidi zeJiko lokuDima 

Ngokusekwe kwindlela ezikhangeleka ngayo, iigophe ezimnyama zinokwahlulwa zibe ziindidi ezahlukeneyo. Siza kuthetha ngegophe elidimming linear kunye nelogarithmic dimming curve. Zombini luhlobo oluphambili lweegophe ezimnyama (ngamanye amaxesha zibizwa ngokuba yi "square-law" dimming).

Xa usebenzisa i-curves dimming curves, isixa sokukhanya esiphuma sihambelana ngokuthe ngqo kwisixa samandla esiya kwinkqubo. Amandla omqondiso wegalelo, kule meko i-25%, iya kufana ngqo nexabiso lemveliso.

Ke, xa i-logarithmic dimming curves isetyenziswa, amaxabiso amagalelo ayatshintsha njengoko amanqanaba okuncipha enyuka. Xa ukukhanya kuthotyiwe, uphawu oluthunyelwe kumqhubi luya kutshintsha ngokucothayo. Kodwa xa ukukhanya kuphakanyisiwe, kuya kutshintsha ngokukhawuleza.

I-dimmer, esisixhobo sokufaka, okanye umqhubi, unokuba nayo nayiphi na igophe efakwe kuyo, efana ne-"S" curve, i-curve "soft linear", njl njl (isixhobo sokukhupha). Olu hlobo loluhlu lwegalelo, elikwabizwa ngokuba "sisilayidi," ngokuqhelekileyo lisetyenziselwa ukukunika ulawulo oluchanekileyo kwinxalenye yoluhlu lwegalelo lilonke.

Ukuba, ngakolunye uhlangothi, uxelela abenzi beemveliso zokwakha ukuba ufuna "umgca" okanye "logarithmic" kuzo zonke izixhobo zokufaka kunye nemveliso, ngoko unokulindela iziphumo ezilungileyo.

Inkqubo yoLawulo lwe-TRIAC ye-LED kunye ne-Wiring yayo 

Ukongeza nje i-TRIAC kwisekethe kuya kuvumela ukukhanya kwe-LED ukuba kuhlengahlengiswe kwinqanaba elifunekayo. I-TRIAC sisixhobo se-semiconductor esineetheminali ezintathu. Ukuyivula, kufuneka kusetyenziswe i-voltage kwi-terminal yesango layo. Inokuvalwa xa i-voltage isusiwe kuloo terminal.

Ngenxa yoko, lukhetho olukhulu lomsebenzi ekuthethwa ngawo. Okubandakanya ulawulo oluchanekileyo lwangoku ohamba nge-LED.

Phambi kokuba uqalise ukufakela i-TRIAC dimmer endlwini yakho, kuya kufuneka uqale ususe iswitshi yokukhanya esemgangathweni ekhoyo ngoku.

Kuyimfuneko ukwenza uxhulumaniso phakathi kocingo olumnyama oluphuma eludongeni kunye nocingo olumnyama oluphuma kwi-dimmer. Ukulandela eli nyathelo, kuya kufuneka udibanise ucingo olumhlophe lwe-dimmer kwintambo emhlophe esele ikhona eludongeni.

Ekugqibeleni, unako ukwenza uxhulumaniso phakathi kocingo oluhlaza oluhlaza kwi-dimmer kunye nocingo olungenanto lomhlaba lobhedu olubekwe eludongeni.

Izinto eziluncedo kunye nokungalunganga kwe-TRIAC Dimmers kwii-LEDs 

Ubumnyama be-TRIAC buneenzuzo ezininzi. izibonelelo, ezifana nenqanaba eliphezulu lokusebenza kakuhle. Kwakhona kunika inqanaba eliphezulu lohlengahlengiso oluchanekileyo. Inika ulwakhiwo olulula. Ikwanayo nobukhulu obuncinci kunye nobukhulu kunye ne-remote control ekulula ukuyisebenzisa, ezizezinye zezibonelelo zale mveliso.

Indlela yobumnyama ye-TRIAC lolona hlobo luqhelekileyo lwe-dimmer onokuyithenga ngoku. Kukho uluhlu olubanzi lweemveliso ezenziwe ngokusebenzisa le ndlela.

Enye yeenzuzo ezininzi zokusebenzisa ezi dimmers kukuba zinexabiso eliphantsi lobumnyama xa zisetyenziswa kunye nezibane ze-LED. Le yenye yeenzuzo zokusebenzisa ezi dimmers.

Ngenxa yokuba imfiliba kakubi kangakanani, i-TRIAC dimmer inoluhlu olulinganiselweyo lobumnyama. Oku kuthintela uluhlu olupheleleyo lwentshukumo ye-dimmer. Ukusebenzisa olu hlobo lwe-dimmer kunale ngxaki.

Kusekho isixa esincinci kakhulu sangoku esidlula kwiswitshi ye-TRIAC naxa ijikisiwe kwisetingi sayo esisezantsi. Oku kungenxa yokuba umsebenzi wokutshintsha kwe-TRIAC kukuqalisa ukuhamba kombane. Ngendlela ii-LEDs ezimfiliba ngayo ngoku, le yingxaki enzima ekufuneka isonjululwe.

FAQs 

I-LEDYi yenza umgangatho ophezulu Imichilo ye-LED kunye ne-LED neon flex. Zonke iimveliso zethu zidlula kwiilabhoratri zobuchwepheshe obuphezulu ukuqinisekisa owona mgangatho uphezulu. Ngaphandle koko, sinikezela ngeenketho ezinokwenziwa ngokwezifiso kwimigca yethu ye-LED kunye neon flex. Ke, kwiprimiyamu ye-LED strip kunye ne-LED neon flex, uqhagamshelane LEDYi NGOKUKHAWULEZA OKUDIBENE NOKUNGXAMA!