Vim li cas LED chips xav tau kev tiv thaiv series? Nws yog muab los ntawm kev tiv thaiv zoo ntawm LED teeb hlaws dai.
Qhov ntawd txhais li cas? Nws yog vim tias LED muaj qhov ua haujlwm voltage txwv. Yog tias qhov hluav taws xob ua haujlwm tshaj qhov ua haujlwm voltage, rau pem hauv ntej PN hlws ris tam sim no loj dhau, uas yooj yim rau hlawv lub LED. Yog li ntawd, ib tug resistor nyob rau hauv series yog yuav tsum tau los tiv thaiv lub LED.
Nyob rau hauv thaum ntxov hnub, nyob rau hauv 1962, LED teeb hlaws yuav tsuas emit liab teeb nrog tsawg luminosity, thiab ces lwm yam monochromatic teeb tau tsim. Niaj hnub no, LED teeb hlaws tuaj yeem tso tawm lub teeb suav nrog pom lub teeb pom kev, lub teeb infrared thiab ultraviolet lub teeb, thiab lub luminosity kuj tau nce mus rau qhov ci ntsa iab lossis txawm tias super brightness. . Cov hlaws teeb LED tau pib siv los ua cov teeb pom kev zoo, cov teeb pom kev zoo, cov teeb pom kev dav dav, cov khoom siv kho mob, thiab lwm yam.
LED teeb hlaws yog qhov tseem ceeb ntawm lub teeb pom kev zoo, uas tso tawm lub zog los ntawm kev sib txuas ntawm cov hluav taws xob thiab qhov, thiab hloov hluav taws xob zoo rau hauv lub teeb lub zog. Txawm li cas los xij, vim hais tias LED teeb hlaws muaj qhov ua haujlwm voltage txwv, tshaj qhov ua haujlwm voltage, rau pem hauv ntej PN hlws ris Yog tias qhov tam sim no loj dhau, nws yooj yim rau hlawv cov hlaws LED teeb, yog li lub resistor yuav tsum tau txuas nrog hauv series.
Vim li cas? Vim yog:
1. Lub teeb coj teeb hlaws yog ntxiv nrog kev tiv thaiv txhawm rau txo qhov ua haujlwm tam sim no.
2. LED teeb hlaws hlaws tsis tas yuav ntxiv nrog cov resistors. Yog tias cov khoom siv hluav taws xob tsis tu ncua, tsis tas yuav tsum muaj cov resistors. Txawm li cas los xij, vim hais tias LED cov khoom tsis sib xws yog qhov muaj zog heev rau lub zog thiab qhov hluav taws xob, lawv tsis tuaj yeem tswj tau hauv hom voltage. Lub ci ci ntawm LED cov hlaws hlaws yog tsuas yog tswj los ntawm tam sim no. Lub hom phiaj ntawm kev ntxiv kev tiv thaiv yog txwv qhov tam sim no. Qhov tseeb, ntxiv kev tiv thaiv yuav cuam tshuam rau kev hloov pauv ntawm LED teeb hlaws. Lub hwj chim qis LED teeb hlaws tuaj yeem tsis quav ntsej qhov poob ntawm qhov tsis kam, thaum lub zog loj LED teeb hlaws feem ntau yog siv ncaj qha los ntawm lub zog tam sim no.
3. Lub teeb ci LED hlaws yog ntxiv nrog cov resistor. Nyob rau hauv qhov kev ntsuam xyuas zaum kawg, nws yog vim hais tias yog hais tias tus resistor tsis ntxiv, LED teeb yuav ua rau muaj cua sov loj ntawm PN hlws ris vim qhov kev khiav hauj lwm ntau dhau tam sim no thiab hlawv tawm ntawm PN junction. Cov hluav taws xob ntau dhau yuav pom tseeb ua rau muaj qhov siab dhau lawm, thiab lub teeb lwj kuj tseem yuav nce ntxiv. Shorten lub neej ntawm LED teeb hlaws dai.
Hais txog qhov twg, koj puas nkag siab tias vim li cas LED cov hlaws hlaws yuav tsum tau ntxiv nrog cov resistors?
