I-Diodes Inc. ihlose ukuthi isilawuli esisha sifanelekele izinhlelo zokusebenza lapho i-voltage engaguquki noma yamanje engapheli kudingeka ukushayela izibonisi namalambu angemuva.Ohlangothini lwe-LCD, lokhu kungase kuhlanganise ukusetshenziswa njengomshayeli wesibani sangemuva sama-LCD TV, iziqapha ze-LCD, nezibonisi zamaphaneli ayisicaba.Ohlangothini lwe-LED, lokho kungase kusho ukusetshenziswa njengomshayeli we-LED wezinhlelo zokusebenza zokukhanyisa ezentengiso.
Idivayisi ifaka ama-voltage okokufaka asukela ku-9V kuye ku-40V.Lokhu kuyivumela ukuthi ivumelane kalula nezinhlobonhlobo zama-voltage okunikezwayo ajwayelekile, njenge-12V, 24V, ne-36V, ngaphandle kokucushwa okwengeziwe noma ukulahlekelwa ukusebenza kahle.
Ileveli yokufiphala ilawulwa okokufaka kwedijithali kwe-PWM (i-pulse width modulation), eguqulelwa ku-voltage ye-analog ukuze kusebenze ukulawula ukufiphala kwangempela.I-AL3353 ingakwazi ukusekela amasignali e-PWM ngamaza asukela ku-5kHz kuya ku-50kHz.
Ukwengeza, i-AL3353 igcina umugqa kuwo wonke amazinga okushisa nokucubungula.Lokhu kufezwa ngokusebenzisa indlela yesinxephezelo yomugqa we-Diodes oguqukayo, esebenzisa isekethe yokunquma yokukhansela ukukhansela.
I-AL3353 iqukethe umshayeli we-PWM okhuthazayo esebenzisa isilawuli semodi yamanje kanye nokusebenza kwamafrikhwensi okugxilile ukuze kulawuleke i-LED yamanje.I-LED yamanje idlula ku-resistor yamanje yangaphandle.Amandla kagesi kuyo yonke into ekwazi ukumelana nezinzwa abe eseqhathaniswa nezinga lereferensi elingu-400mV.Umehluko phakathi kwama-voltage amabili usetshenziselwa ukulawula ububanzi be-pulse yeswishi yamandla, nokuvumela ukulawulwa kwamandla amanje agelezayo ku-LED.
I-AL3353 ingasetshenziswa futhi ezimeni ezidinga ukulawulwa kwamandla kagesi okukhiphayo, kunokulawula okuphumayo kwamanje.Ikwenza lokho ngokwenza izilinganiso ngenethiwekhi yokumelana nempendulo exhunywe kutheminali yokukhiphayo yedivayisi.
Ukuze izivikele yona nama-LED ewalawulayo, i-AL3353 ihlanganisa izici ezithile ezibalulekile zokuphepha.Lokhu kubandakanya:
I-AL3353 ingathatha indawo yezingxenye eziningi ezihlukene futhi inganciphisa izindleko ze-BOM, kanye nokunciphisa indawo yebhodi ngosayizi wayo omncane kakhulu:
Uma kubhekwa ukusetshenziswa kwale ngxenye, akumangalisi ukuthi kukhona abanye abangena kulo mkhakha.Futhi, ngenkathi i-AL3353 ihlinzeka ngokukhipha okukodwa, abanye abakhiqizi banikela ngezingxenye ezinemiphumela efinyelela kwezine.Nazi ezimbalwa:
Isikhathi sokuthumela: May-29-2019