Dareewalada bandhiga elektaroonigga ah ee LED waxay u qaybsan yihiin saddex qaybood

Waxaa jira noocyo badan oo ah alaabada bandhiga elektaroonigga ah ee LED, laakiin astaamaha ay wadaagaan ayaa ah inay adeegsadaan sahay koronto DC ah iyo koronto shaqaynaysa oo yar oo hal qalab ah, iyo wareegga beddelka waa in la adeegsadaa marka la isticmaalayo awoodda magaalada.Xaaladaha kala duwan ee isticmaalka, waxaa jira xalal kala duwan oo ku saabsan xaqiijinta farsamada ee beddelka awoodda LED.

Marka loo eego korantada korontada, darawalada LED-yada waxaa loo qaybin karaa saddex qaybood: mid baatari ku shaqeeya, inta badan loo isticmaalo alaabta elektarooniga ah ee la qaadi karo, wadista tamarta hoose iyo tamarta dhexdhexaadka ah ee LEDs;Midda kale waa koronto ka weyn 5, taas oo ay ku shaqeyneyso koronto xasilan ama batari koronto, sida koronto-soo-dejin, hoos-u-dhac iyo hoos-u-dejin DC-rogayaasha (beddelayaasha; ka saddexaadna waxaa si toos ah ugu shaqeeya koronto-dhaliyaha (110V). ama 220V) ama u dhigma korantada tooska ah ee tooska ah (sida 40 ~ 400V), kaas oo inta badan loo isticmaalo geela tamarta sare ee LED-ka cad, sida beddelka DC/DC-da.

1. Nidaamka wadista batari ku shaqeeya

Danabka sahayda batarigu guud ahaan waa 0.8 ~ 1.65V.Qalabka nalalka hooseeya sida bandhigyada LED, tani waa kiis la isticmaalo oo caadi ah.Habkani wuxuu inta badan ku habboon yahay alaabta elektaroonigga ah ee la qaadi karo si loo kaxeeyo nalalka cadcad ee tamarta yar iyo kuwa dhexdhexaadka ah, sida toosasha LED, nalalka degdega ah ee LED, nalalka miiska tamarta, iwm. Hayso mugga ugu yar, xalka ugu fiican ee farsamada ayaa ah beddelaha bamka kor u qaadaya, sida kor u qaadida DC Zhuang (badaleeyaha ama kor u qaadida (ama Dhowr ka mid ah beddelayaasha bamka-kor u qaadista nooca buck-boost waa darawallada isticmaala wareegyada LDO.

2. Nidaamka wadista tamarta sare iyo qalalan

Nidaamka sahayda korantada yar-yar ee korantadu ka sarreyso 5 waxay isticmaashaa koronto xasilan oo go'an si ay u siiso koronto.Qiimaha korantada ee sahayda laydhka ayaa had iyo jeer ka sarreeya hoos u dhaca tuubada LED, taas oo ah, had iyo jeer way ka weyn tahay 5V, sida 6V, 9V, 12V, 24V ama ka sareeya.Xaaladdan oo kale, waxaa inta badan ku shaqeeya koronto deggan ama batari si uu u wado nalalka LED-ka.Nidaamka korontadu waa inuu xalliyaa dhibaatada korontadu hoos u dhaceyso.Codsiyada caadiga ah waxaa ka mid ah nalalka cawska cadceedda, nalalka beerta qoraxda, iyo nidaamka nalka baabuurta.

3. Nashqada wadista oo si toos ah ugu shaqaynaysa dhexda ama tamarta tooska ah ee tamarta sare leh

Xalkan waxaa si toos ah ugu shaqeeya tas-hiilaadka dhexe (100V ama 220V) ama u dhigma koronto-sare toos ah, waxaana inta badan loo isticmaalaa in lagu kaxeeyo nalalka cadcad ee tamarta sare leh.Waddada Main-gu waa hab koronto oo leh saamiga qiimaha ugu sarreeya ee bandhigga LED, waana jihada horumarinta ee faafinta iyo adeegsiga iftiinka LED-ka.

Markaad isticmaalayso awoodda dhexe si aad u wado LED-ka, waxaa lagama maarmaan ah in la xalliyo dhibaatada dhimista korantada iyo hagaajinta, laakiin sidoo kale in la helo wax ku ool ah beddelaad heer sare ah, mug yar iyo qiimo jaban.Midda kale, arrinta ku saabsan go’doominta amniga waa in la xaliyaa.Iyadoo la tixgalinayo saameynta korontadu ku leedahay, faragelinta korantada iyo arrimaha quwada korontada waa in sidoo kale la xalliyo.Ilaysyada dhexdhexaadka ah iyo kuwa hooseeya, qaab dhismeedka wareegga ugu fiican waa beddelaha duuliyaha ee go'doonsan.Codsiyada awoodda sare leh, wareegyada beddelka buundada waa in la isticmaalaa.

Wadista LED-ka, caqabada ugu weyni waa isku-dheellitir la'aanta bandhigga LED-ka.Tani waxay inta badan ka muuqataa xaqiiqda ah in korantada hore ee LED ay isbeddeli doonto hadda iyo heerkulka, korantada hore ee aaladaha LED-yada kala duwan ayaa ka duwanaan doona, "midabka midabka" ee LED-ku wuxuu la wareegi doonaa heerkulka hadda iyo heerkulka, iyo LED waa in ay ku jiraan shuruudaha qeexitaanka.Ka shaqee inta u dhexeysa si aad u gaarto shaqo la isku halayn karo.Shaqada ugu weyn ee darawalka LED-ka waa in la xaddido xaaladda hadda jirta ee xaaladaha shaqada, iyada oo aan loo eegin isbeddelada xaaladaha gelinta iyo korantada hore.

Wareegga wadista LED-ka, marka lagu daro xasilinta joogtada ah ee hadda jirta, waxaa jira shuruudo kale oo muhiim ah.Tusaale ahaan, haddii aad u baahan tahay inaad sameyso dimming LED, waxaad u baahan tahay inaad bixiso tignoolajiyada PWM, iyo inta jeer ee PWM ee caadiga ah ee iftiinka LED waa 1 ~ 3kHz.Intaa waxaa dheer, awoodda wax ka qabashada korontada ee wareegga wadista LED-ka waa in ay ahaataa mid ku filan, awood leh, awood u leh inay u adkeyso xaalado kala duwan oo cillad ah, oo sahlan in la hirgeliyo.Waxaa mudan in la xuso sababta oo ah LED-ku had iyo jeer wuxuu ku jiraa heerka ugu sarreeya mana leexan doono.

Xulashada qorshayaasha wadista bandhiga LED, kor u qaadista inductance DC/DC ayaa la tixgeliyey waagii hore.Sanadihii la soo dhaafay, wakhtiga xaadirka ah ee dareewalka bamka soo saari karo wuxuu ka kacay dhowr boqol oo mA ilaa 1.2A.Sidaa darteed, labadan wax soo saarka nooca actuator waa isku mid.


Waqtiga boostada: Jul-12-2021
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