Lub Rau Hli 22, ON Semiconductor tau tsim ob lub cuab yeej tshiab NCL31000 thiab NCL31001 LED tsav tsheb uas tuaj yeem txhim kho kev ua haujlwm ntawm cov tshuab sib txuas nrog cov teeb pom kev zoo, ua rau cov tuam txhab tsim hluav taws xob teeb nrog LED teeb pom kev zoo chaw thiab pom lub teeb sib kis. Cov kev daws teeb meem no nce ntxiv cov ntaub ntawv kev txawj ntse thiab kev tso qhov tseeb (txog 30 cm), thiab yuav hloov kho qhov teeb pom kev ntawm ntau qhov chaw suav nrog cov khw muag khoom loj, chaw rau khoom, tsev kho mob thiab tshav dav hlau.
NCL31000 yog ib tus tswv cuab ntawm ON Semiconductor' s cov kws tsav tsheb ntev tsav LED, tsim tshwj xeeb rau kev siv teeb pom kev zoo. Lub hauv paus tseem ceeb ntawm cov cuab yeej yog kev ua tau zoo theem qis-tsav tsheb LED uas pab txhawb kev siv hluav taws xob zoo sib npaug thiab qis-rau-xoom tam sim no PWM dimming. Cov tsav tsheb muaj qhov sib xyaw ua ke 3V3 tsau DC-DC hloov pauv thiab hloov mus txuas ntxiv DC-DC (2.5 txog 24V), uas tuaj yeem siv rau lub zog tsim cov cheebtsam xws li hnov thiab microcontrollers. Sib sau ua ke cov kev daws hwj chim rau hauv cov tsav zoo heev yooj yim tsim cov kab ke thaum txhim kho lub zog.
Qhia ncaj qha teeb dimming ua rau pom kev sib txuas lus (VLC) thiab txhawb kev txhim kho ntawm cov teeb tsa ua qhov chaw nyob sab hauv, uas tuaj yeem siv rau ntau qhov chaw uas tsis muaj teeb meem RF siv tsis tau (xws li qhov chaw txaus ntshai xws li mines, lossis xov tooj cua-zaus) rhiab qhov chaw xws li tsev kho mob lossis cov dav hlau). Muab los siv. NCL31000 tuaj yeem dim tau qhov tseeb nrog 0.1% qhov tseeb, xyuas kom meej tias tsis muaj lub teeb lub teeb ntawm qhov qis tshaj dimming teeb tsa. Nws tseem tso ua ke ntawm 10-ntsis analog-rau-digital converter (ADC) kom ua tiav kev kuaj mob tau zoo, yog li ntxiv kev txo qhov system nyuaj. ADC ntsuas hluav taws xob system, tam sim no thiab ntsuas kub kom saib xyuas LED thiab tag nrho qhov kev siv zog ntawm lub zog, thiab kuaj txhua qhov xwm txheej tsis meej. Qhov kev ntsuas hluav taws xob (I2C / SPI) muaj peev xwm ua kom tag nrho cov ntaub ntawv kuaj mob siv los ntawm MCU sab nraud los saib xyuas thiab tswj cov teeb pom kev zoo ntse. Lub NCL31000' s architecture ua kom zoo tshaj qhov hluav taws xob cuam tshuam (EMI) kev ua tau zoo. Hauv kev xeem, nws tau qhia tias nws yog 14dB qis dua li qhov yuav tsum ua ntawm CISPR15 / EN55015.
ON Semiconductor tseem tshaj tawm pib ntawm NCL31001 yog tus txhawb nqa tsav rau NCL31000. Qhov sib ntxiv ntawm NCL31001 tsim ib qho kev daws teeb meem uas txhawb ntau daim ntawv thov teeb pom kev zoo, suav nrog cov uas tswj xim. NCL31001 muab cov yam ntxwv zoo ib yam li NCL31000, tab sis tsis suav nrog DC-DC hloov pauv kom tsis txhob theej tawm yam tsis tsim nyog.
Michel De Mey, tus lwm thawj coj ntawm ON Semiconductor' s kev faib tawm kev lag luam, tau hais hauv kev tshaj tawm cov kev daws teeb meem tshiab:" Raws li LED teeb lub tuam txhab pom tias cov haujlwm no tuaj yeem txhim kho cov neeg siv khoom yooj yim, thaum txo kev siv nyiaj thiab lub zog kev siv, muaj qhov xav tau ntawm lub teeb pom kev zoo ntse. Kev kawm tsis tu ncua. NCL31000 thiab NCL31001 txhawb cov haujlwm no, thiab muaj kev ua lag luam-ua lub zog txuag hluav taws xob thiab kev ua haujlwm, uas yuav qhib ntau lub sijhawm ua lag luam tshiab rau cov ntsuas teeb pom kev zoo."
Tus tsav tsheb LED tshiab yog ib feem ntawm ON Semiconductor cov haujlwm zoo ntawm cov teeb pom kev zoo sib txuas, uas tseem suav nrog lub teeb tsa kev sib txuas ntawm cov teeb pom kev zoo uas muaj ntau txoj kev sib txuas (Bluetooth Tsawg Zog thiab Lub Hwj Chim dhau Ethernet (PoE)) rau kev tswj hwm LED ntse.
