Zinthu zomwe ziyenera kuzindikirika pakuchepa kwa pulse wide
1. Kusankhidwa kwa mafupipafupi a pulse: Chifukwa chakuti LED ili mu kusintha kwachangu, ngati mafupipafupi ogwiritsira ntchito ali otsika kwambiri, diso laumunthu lidzamva ngati likugwedezeka. Kuti mugwiritse ntchito mokwanira mawonekedwe otsalira a diso la munthu, ma frequency ake ogwirira ntchito ayenera kukhala apamwamba kuposa 100Hz, makamaka 200Hz.
2. Chotsani kulira kochititsidwa ndi dimming: Ngakhale kuti diso la munthu silingathe kulizindikira pamwamba pa 200Hz, ndilo kuchuluka kwa makutu a munthu mpaka 20kHz. Panthawi imeneyi, mukhoza kumva mawu pang'ono. Pali njira ziwiri zothetsera vutoli. Imodzi ndikuwonjezera ma frequency osinthira kupitilira 20kHz ndikudumpha kuchokera pamakutu amunthu. Koma pafupipafupi kwambiri kungayambitsenso mavuto ena, chifukwa cha kutengera kwa magawo osiyanasiyana a parasitic, mawonekedwe a pulse waveform (m'mphepete mwa kutsogolo ndi kumbuyo) adzasokonekera. Izi zimachepetsa kulondola kwa dimming. Njira ina ndiyo kupeza chipangizo cholira ndi kuthana nacho. M'malo mwake, chida chachikulu chopangira mawu ndi ceramic capacitor pakutulutsa, chifukwa ma capacitor a ceramic nthawi zambiri amapangidwa ndi ma ceramics okhazikika a dielectric, omwe amakhala ndi mawonekedwe a piezoelectric. Pansi pa kugunda kwa 200Hz, imatulutsa kugwedezeka kwamakina ndi mawu. Njira yothetsera vutoli ndikugwiritsa ntchito tantalum capacitors m'malo mwake. Komabe, ma tantalum capacitor okwera kwambiri amakhala ovuta kupeza, ndipo mtengo wake ndi wokwera mtengo kwambiri, zomwe zimawonjezera ndalama zina.
