Yuav ua li cas siv ib tug multimeter los xyuas puas LED Bead?
LED teeb pom kev zoo hlaws feem ntau txais cov koob thiab kev sib txuas ua ke. Thaum LED teeb hlaws raug puas lawm, tus yam ntxwv ntawm kev txhaum yog qhov ci ntsa iab tsis txaus. Rau kev puas tsuaj LED teeb hlaws hauv cov kab thiab cov kab sib txuas, cov hauv qab no feem ntau siv los kuaj xyuas.
Txiav txim seb nws zoo los yog phem:
(1) Multimeter nrhiav thiab txiav txim txoj kev. Txij li thaum LED teeb hlaws muaj cov yam ntxwv ntawm lub diode, nws tuaj yeem kuaj pom lossis txiav txim los ntawm kev siv lub tshuab digital multimeter diode block lossis pointer hom multimeter R × 1 thaiv hauv txoj kev lossis qhib Circuit Court. Yog tias tsis muaj teeb meem nrog LED teeb hlaws, LED teeb hlaws yuav teeb thaum pom. Yog hais tias lub teeb pom kev ntawm LED teeb hlaws tsis muaj cov yam ntxwv diode thiab yuav tsis tawm lub hnub qub me ntsis teeb pom kev, nws yuav raug txiav txim kom puas.
(2) Parallel txiav txim txoj kev. Rau qee qhov kev laus ntawm LED teeb hlaws, kev siv ntau lub ntsuas ntsuas pom tau pom cov teeb pom kev zoo ntawm lub hnub qub, tab sis tseem tsis txaus ci tom qab lub hwj chim. Nyob rau hauv no hais txog, ib tug parallel txoj kev yuav siv tau los nrhiav cov laus LED teeb hlaws dai. Siv lub teeb 3W ua piv txwv. Txoj kev tshwj xeeb yog raws li nram no.
(3) LED parallel kev txiav txim txoj kev. Siv lub zog ua haujlwm zoo 1W LED, txhua tus pin yog soldered nrog ib tug luv luv hlau raws li lub teeb pom kev, thiab ces siv rau luv luv-circuit txhua LED teeb hlaws nyob rau hauv lub teeb. Thaum nws luv luv rau lub teeb ci LED hlaws, 3W Lub teeb ci ntawm lub teeb yuav nce siab heev, thiab lub teeb LED uas luv luv yog lub hnub nyoog LED teeb hlaws. Tom qab hloov qhov tshiab, qhov txhaum tuaj yeem raug tshem tawm.
(4) Hlau luv txoj kev. Yog tias tsis muaj qhov zoo li LED tam sim no, koj tuaj yeem siv qhov luv luv ntawm cov xaim luv luv rau luv luv-circuit txhua lub teeb LED hauv lub teeb. Thaum nws luv luv rau qee qhov LED teeb, qhov ci ntawm 3W qhov muag teev yuav nce siab heev. LED teeb hlaws uas luv luv yog cov laus LED teeb hlaws. Tom qab hloov qhov tshiab, qhov txhaum tuaj yeem raug tshem tawm. Yog tias tsis muaj cov khoom siv tshiab hloov pauv ntawm ib lub sijhawm, koj tuaj yeem luv luv-circuit lub hnub qub LED teeb hlaws ntawm ob qho kawg. Thaum koj tau yuav ib qho khoom siv tshiab, koj yuav tsum hloov nws raws sijhawm.