Zoyipa ndi zovuta za SCR dimming
Komabe, pali zovuta zingapo ndi SCR dimming.
1. Thyristor amawononga mawonekedwe a wave wave wa sine wave, potero amachepetsa mphamvu yamagetsi, nthawi zambiri PF imakhala yochepera 0.5, ndipo kagawo kakang'ono ka conduction, kumakhala koyipa kwambiri kwa mphamvu (0,25 yokha pa 1/4 kuwala).
2. Mofananamo, mawonekedwe osakhala a sinusoidal amawonjezera mphamvu ya harmonic.
3. Mawonekedwe osakhala a sinusoidal angayambitse zizindikiro zosokoneza (EMI) pamzere
4. N'zosavuta kukhala wosakhazikika pa katundu wochepa, umene bleeder resistor iyenera kuwonjezeredwa. Chotsutsa ichi chiyenera kuwononga mphamvu ya 1-2 watts.
5. Mavuto osayembekezereka adzachitikanso pamene wamba thyristor dimming dera zotuluka kwa mphamvu yoyendetsa ya LED, ndiko kuti, LC fyuluta pa athandizira adzachititsa thyristor oscillate, zomwe ziribe kanthu kwa nyali incandescent, Chifukwa matenthedwe. inertia wa nyali incandescent zimapangitsa diso la munthu sangathe kuona oscillation izi. Koma mphamvu yoyendetsa ya LED, phokoso la audio ndi flicker zimapangidwa.
