Qhov tsis zoo thiab teeb meem ntawm SCR dimming
Txawm li cas los xij, muaj ntau yam teeb meem nrog SCR dimming.
1. Thyristor rhuav tshem lub waveform ntawm sine nthwv dej, yog li txo cov nqi hluav taws xob, feem ntau PF tsawg dua 0.5, thiab qhov me dua lub conduction lub kaum sab xis, qhov ua rau lub zog loj dua (tsuas yog 0.25 ntawm 1/4 brightness).
2. Ib yam li ntawd, lub non-sinusoidal waveform ua rau kom muaj kev sib haum xeeb coefficient.
3. Non-sinusoidal waveforms tuaj yeem ua rau muaj teeb meem cuam tshuam loj heev (EMI) ntawm kab
4. Nws yog ib qho yooj yim uas yuav tsis ruaj tsis khov thaum tsis muaj load, uas yuav tsum tau ntxiv ib tug bleeder resistor. Cov dej ntws tawm no yuav tsum haus tsawg kawg 1-2 watts ntawm lub zog.
5. Cov teeb meem tsis txaus ntseeg kuj tseem yuav tshwm sim thaum lub thyristor dimming Circuit Court zoo ib yam tawm mus rau lub zog tsav ntawm LED, uas yog, LC lim ntawm cov khoom nkag yuav ua rau lub thyristor oscillate, uas tsis muaj teeb meem rau lub teeb incandescent, vim tias lub thermal. inertia ntawm lub teeb incandescent ua rau tib neeg lub qhov muag tsis pom qhov oscillation. Tab sis rau lub zog tsav LED, lub suab nrov thiab flicker yog generated.
