Txuas LEDs. Yuav ua li cas yuav ua tau yooj yim?

Qhov tsab xov xwm no qhia txog yuav ua li cas los mus siv cov kev twb kev txuas ntawm LEDs, uas yog tus kav yuav tsum tau ua raws li nrog qhov kev txiav txim los xyuas kom meej tseeb lag luam ntawm pab kiag li lawm. Variants ntawm kev twb kev txuas.

Txuas LEDs. Yuav ua li cas yuav ua tau yooj yim?

Cov me ntsis tej yam uas yog tam sim no lug paub. Txhua leej txhua tus tau hnov cov LED teeb, teeb, garlands thiab lwm yam kaj, glowing khaub ncaws thiab tej khoom ua si. Lawv muaj ntau yam kev pab thiab zoo piv rau pa qhov muag teeb, tab sis muaj cov yam ntxwv ntawm daim ntawv thov. Yog li ntawd ua li cas koj yuav tsum tau ua lub kev twb kev txuas ntawm LEDs?

Rau kev siv ntawm lub pab kiag li lawm yuav tsum nruj me ntsis raws li ob peb yam yooj yim uas yuav tsum tau, thiab ces lawv yuav tsis xa tej teeb meem thiab yuav pab rau ib ntev lub sij hawm.

Feem ntau cov tseem ceeb - tsis txhob hnov qab lub ob yooj yim cov kev cai:

1. Lub LEDs yog semiconductor pab kiag li lawm thiab muaj ib tug ib-txoj kev conductivity, los yog, nyob rau hauv lwm yam lus, cov kev twb kev txuas ntawm lub LEDs yuav tsum tau nqa tawm nrog lub tseeb polarity (raws li thaum koj txuas lub roj teeb yuav tsis confuse lub "+" thiab "-"). Txwv tsis pub, cov LED yog tog twg los hlawv los yog yuav tsis pom txog.

2. Ntaus tswj tam sim no. Yuav ua li cas yog lub fais tam sim no, nws yog tsis tsim nyog los piav, tab sis qhov tseeb hais tias nws tus nqi tej zaum yuav sib txawv, koj yuav tsum paub. Tus nqi ntws los ntawm ib tug Circuit Court yog txiav txim los ntawm lub ntsuas ntawm nws kuj. Cov tib yam tshwm sim thaum koj qhib tus kais - yog hais tias koj qhib nws ib tug me ntsis, cov dej yuav ntws ib tug nyias kwj, ntws kais dej kuj loj; Yog hais tias koj qhib nws tag, cov dej yuav ntws haib dav hlau, kua kuj yog me me crane.

Rau ib tug muaj tseeb thiab tas mus li lag luam ntawm lub LED yuav tsum ntws los ntawm ib tug tej yam tam sim no tus nqi, tus nqi txiav txim los ntawm cov yam ntxwv ntawm cov LED. Yog hais tias tam sim no yog ib yam nkaus thiab loj, hlawv tsev. Qhov no yog sib npaug rau hais tias peb yuav ua tiag muab dej nrog ib tug siab los ntawm ib tug nyias roj hmab hose. Yog hais tias lub siab yog tsis muaj zog heev, cov dej yuav muaj lub sij hawm kis tau los ntawm hose, thiab txhua yam yuav zoo. Yog hais tias nws yog loj heev, tsuas Hose tawg. Cov tib yam tshwm sim nrog LED. Yog hais tias tam sim no tshaj lub Desired nqi, hlawv tsev.

Tus nqi ntawm cov tam sim no ntawm lwm yam uas lub kuj. Nws yog tsim nyog yuav tau nco ntsoov hais tias tus LED kev twb kev txuas mus rau ib tug voltage qhov yuav ua tau tsuas yog los ntawm cov kuj. Yuav ua li cas yog nws, thiab ntau npaum li cas kuj yuav tsum tau siv rau tej kev lag luam ntawm lub LED yog tsis tus raug ntawm no tsab xov xwm. Yog hais tias koj xav mus ua tus ntaus ntawv teeb li, ces tau txaus kev sib tham nyob rau hauv lub khw muag khoom rau cov kev xaiv ntawm kuj. Thiab ib tug me ntsis tuav soldering rau txuas lub ntsiab ua ke.

Tag nrho cov saum toj no siv tau rau cov ntaub ntawv ntawm kev pab kiag li lawm mus rau lub DC voltage qhov chaw, piv txwv li, roj teeb, roj teeb los yog ib yam dab tsi zoo li hais tias. Thaum koj sim mus txuas LEDs mus rau lub tsev network, piv txwv li, AC voltage qhov chaw, nws yog tsim nyog los ntxiv siv ib tug rectifier diode, tsis nco qab txog qhov no thaum Rule 1.

Txawm li cas los, tej zaum yuav muaj ib qhov teeb meem thaum koj yuav tau siv ntau yam LEDs ib txhij. Nyob rau hauv cov ntaub ntawv no, muaj ob txoj kev los siv rau qhov no yuav tsum tau.

Yog hais tias koj yuav tsum tau, rau cov piv txwv, ntau teeb pom kev zoo, siv rau thaum uas tig kev twb kev txuas ntawm LEDs. Ces txhua yam yog yuav luag tib yam, tsuas yog mus rau ib tug voltage qhov chaw nyob rau tib lub sij hawm txuas ob peb pab kiag li lawm. Tsis txhob hnov qab tias cov kev twb kev txuas ntawm txhua tus ntawm lawv yuav tsum tshwm sim los ntawm ib tug resistor.

Yog hais tias nws yog tsim nyog los ua ib yam dab tsi zoo li garlands, koj xav tau ib tug serial kev twb kev txuas LEDs. Nyob rau hauv cov ntaub ntawv no, tib hom li kev cob cog rua rau txhua lwm yam li uas tau kev cob cog rua rau lub yav dhau los rho tawm ntxiv tom qab. Raws li ib tug tshwm sim, peb tau ib cov saw uas muaj ob tug free xaus - zoo thiab tsis zoo. Thiab qhov no saw twb sawv raws li ib tug tib LED, thiab yuav kev cob cog rua ntawm ib tug resistor mus rau ib tug voltage qhov chaw.