Peb qhov ua tsis tiav ntawm LED teeb liab teeb thiab kev daws teeb meem

Qee cov phooj ywg nug txog cov laj thawj thiab kev kho mob ntawm LED teeb liab teeb ci ntsa iab, thiab qee tus neeg xav nug vim li cas LED teeb liab teeb tsis teeb. Yuav ua li cas? Qhov tseeb, muaj peb qhov kev ua tsis tiav thiab kev daws teeb meem rau teeb liab teeb.

Peb qhov ua tsis tiav ntawm LED teeb liab teeb thiab kev daws teeb meem:

Ib qho yuam kev yog qhov tsis ua haujlwm rectifier. Mus rau lub teeb City thiab yuav ib qho thiab hloov nws. Tag nrho cov coj tsis tshua muaj kev puas tsuaj.

Ob. Led teeb liab flashing yog vim li cas:

1. Lub teeb hlaws thiab coj tsav lub zog tsis sib xws, ib txwm 1W teeb hlaws dais: 280-300 ma tam sim no thiab : 3.0-3.4V voltage, yog tias lub teeb nti tsis muaj lub zog txaus, yuav ua rau lub teeb pom kev zoo. phenomenon, yog tias tam sim no loj heev, lub teeb hlaws yuav tsis muaj peev xwm tiv taus qhov hloov. Hauv qhov xwm txheej hnyav, cov hlau kub lossis tooj liab hauv cov hlaws tuaj yeem hlawv tawm, ua rau cov hlaws dai tsis ua haujlwm.

2. Lub zog tsav lub zog yuav raug puas tsuaj, tsuav yog koj hloov nws nrog lwm lub zog tsav zoo, nws yuav tsis ntsais.

3. Yog tias tus neeg tsav tsheb muaj lub luag haujlwm ntawm kev tiv thaiv overtemperature, lub tshav kub dissipation kev ua tau zoo ntawm LED teeb liab teeb tsis tuaj yeem ua tau raws li qhov yuav tsum tau ua, thiab kev tiv thaiv overtemperature ntawm tus tsav tsheb yuav ntsais thaum nws pib ua haujlwm. Piv txwv li, 20 w projection teeb vaj tsev siv los sib sau ua ke 30W teeb tsis ua haujlwm kom txias.

4. Yog hais tias lub teeb sab nraum zoov kuj muaj stroboscopic phenomena, nws txhais tau hais tias lub teeb yog dej nyab. Yog li ntawd, yog tias nws ntsais, nws tsis teeb. Lub beacon thiab tus tsav tsheb tawg. Yog tias tus neeg tsav tsheb ua haujlwm zoo ntawm kev tiv thaiv dej, lub teeb hlaws tawg thiab lub teeb ci tuaj yeem hloov tau.

Peb. Kev ua ntawm LED teeb liab teeb flashing txoj kev:

1. Nyob rau hauv off-line low-power LED teeb pom kev zoo daim ntaub ntawv, lub hom fais fab topology yog cov cais flyback topology. Lub Green Dot, 8W off-line LED tsav tsheb, ua tau raws li lub hnub qub hluav taws xob cov qauv teeb pom kev zoo. Nyob rau hauv cov ntaub ntawv tsim, vim hais tias lub sinusoidal square yoj lub zog hloov dua siab tshiab ntawm lub flyback regulator tsis muab lub zog tas mus li rau qhov kev tsis ncaj ncees, lub dynamic self-powered circuit yuav qhib thiab ua rau lub teeb flicker. Txhawm rau zam qhov teeb meem no, nws yog ib qho tsim nyog yuav tsum tau ua qhov kev tso tawm thawj zaug hauv ib nrab lub voj voog. Yog li ntawd, nws yog ib qho tsim nyog yuav tsum xaiv qhov capacitance thiab tsis kam ntawm cov teeb liab LED teeb uas ua rau lub voj voog.

2. Feem ntau tib neeg lub qhov muag tuaj yeem pom qhov flicker ntawm lub teeb ntawm qhov zaus ntawm 70 Hz, tab sis saum toj no nws tsis tuaj yeem. Yog li ntawd, nyob rau hauv daim ntawv thov teeb pom kev zoo, yog tias lub teeb liab mem tes muaj qhov tsawg zaus feem ntau nrog lub zaus qis dua 70 Hz, tib neeg lub qhov muag yuav hnov ​​​​qhov flicker. Tau kawg, muaj ntau yam uas tuaj yeem ua rau LED teeb ntsais rau hauv ib daim ntawv thov tshwj xeeb.

3. Emi cov ntxaij lim dej yuav tsum tau txawm nyob rau hauv cov ntawv tsav tsheb uas muab kev kho lub zog zoo thiab txhawb kev dimming ntawm peb lub davhlau ya nyob twg bi-directional SCR keyboards. Lub sijhawm tam sim no raug ntxias los ntawm cov kauj ruam ntawm lub triterminal bidirectional SCR hloov ua rau lub ntuj resonance ntawm inductors thiab capacitors hauv emi lim.

Yog hais tias tus yam ntxwv resonance ua rau cov tswv yim tam sim no qis dua qhov tuav tam sim no ntawm peb lub davhlau ya nyob twg bi-directional SCR hloov chaw, peb lub davhlau ya nyob twg bi-directional SCR hloov chaw yuav raug muab tua. Tom qab ncua sijhawm luv luv, peb lub davhlau ya nyob twg bidirectional SCR hloov pauv feem ntau yuav rov ua dua kom zoo siab rau tib lub suab. Cov xwm txheej no tuaj yeem rov ua dua ntau zaus hauv ib nrab lub voj voog ntawm INPUT lub zog waveform ntawm LED semaphore, ua rau pom LED flickering.