Dab tsi yog qhov teeb meem thiab kev daws teeb meem ntawm LED teeb?

LED teeb yog dab tsi?

LED (Lub Teeb Emitting Diode) yog ib qho khoom siv -state semiconductor ntaus ntawv uas tuaj yeem hloov hluav taws xob hluav taws xob rau hauv lub teeb pom kev. Nws yog hu ua plaub- tiam teeb pom kev zoo lossis lub teeb ntsuab. LED teeb yog maj mam tuav lub lag luam teeb pom kev zoo tam sim no nrog qhov zoo ntawm kev ci ntsa iab, kev siv hluav taws xob tsawg thiab lub neej ntev. Feem ntau hais lus, LED teeb pom kev zoo khoom tsis tshua muaj teeb meem.

Muaj ob hom LED teeb ntawm lub khw. Ib qho yog hom tam sim no tsis tu ncua thiab lwm qhov yog qhov tsis kam - hom capacitance kuj hu ua qhov tsis tu ncua voltage LED teeb. Hais txog kev hais lus, yam tsis tu ncua tam sim no yog qhov ruaj khov dua. Cov khoom lag luam LED teeb pom kev tas li tam sim no yog nrog tus tswj hwm, thiab tam sim no yog xa tawm ruaj khov. Cov qauv ntawm kev ua haujlwm -capacitor LED lub teeb yog qhov yooj yim, thiab nrog cov hluav taws xob qis kom ua rau lub teeb ci LED hlaws ua haujlwm nyob rau hauv lub cev ua haujlwm tam sim no.

Lub hauv paus qauv ntawm LED teeb yog dab tsi?

Muaj ntau ntau hom LED teeb nyob rau hauv kev ua lag luam, LED tube teeb, LED teeb lub teeb, LED vaj huam sib luag teeb, LED dej nyab teeb, LED siab bay teeb, LED txoj kev teeb thiab lwm yam. Txawm li cas los xij yam ntawm LED teeb, lawv cov qauv sab hauv yog cov tib yam, tag nrho nrog 1) cov khoom siv teeb pom kev zoo uas yog LED teeb hlaws dai ntawm PCB, muaj ntau lub teeb me me hlaws dai hauv LED teeb, feem ntau txuas nrog hauv series, thiab tom qab ntawd ob peb series tau sib xyaw ua ke thiab sib txuas ua ke; 2) cov khoom vaj tse; 3) thiab cov khoom tsav tsheb, cov khoom siv hluav taws xob, nrog rau kev ua haujlwm ntawm kev muab tam sim no thiab nqis mus.

Hais txog qhov teeb meem ntawm LED teeb, tsis muaj ntau tshaj plaub qhov txhaum: lub teeb tsis tig, lub teeb yog dimmed, LED teeb ci me ntsis thiab lub teeb flickers Hnub no peb yuav txheeb xyuas thiab daws txhua qhov teeb meem ntawm ib qho.

Fault 1. Lub teeb LED tsis teeb

Kauj Ruam 1: Tshawb xyuas lub voj voog

Yog tias lub teeb ci LED tsis teeb, nws feem ntau yog teeb meem hauv Circuit Court. Siv tus cwj mem hluav taws xob los ntsuas seb puas muaj qhov hluav taws xob hauv Circuit Court. Yog tsis yog, nws yog qhov teeb meem. Yog tias muaj, txuas mus rau kauj ruam tom ntej.

Kauj ruam 2: Xyuas tus tsav tsheb

Nws kuj yuav yog vim muaj teeb meem ntawm tus tsav tsheb. Lub teeb -emitting diodes muaj qhov xav tau siab ntawm tam sim no thiab voltage. Yog tias qhov tam sim no thiab qhov hluav taws xob siab dhau lossis qis dhau, lawv tsis tuaj yeem teeb ib txwm. Lawv cia siab rau tus tsav tsheb tam sim no, rectifier, kauj ruam -down ntaus ntawv thiab lwm yam khoom siv hauv tus tsav tsheb. Sim hloov tus tsav tsheb tshiab thiab xyuas nws dua, thiab qhov teeb meem tuaj yeem daws tau yooj yim.

Fault 2. Lub teeb LED ua tsaus

Thaum teeb pom kev zoo, lub teeb dheev ploj mus yam tsis muaj kev ceeb toom, nws yuav tsum yog teeb meem teeb pom kev zoo. Lub teeb hlaws ntawm txhua txoj hlua txuas nrog hauv series, thiab cov hlua txuas nrog rau qhov sib luag. Yog tias lub teeb hlaws raug hlawv, txoj hlua ntawm lub teeb no yuav raug txiav thiab tsis tuaj yeem teeb.

Thiab qhov uas yooj yim rau kev tshuaj xyuas, cov hlaws taws kub hnyiab yuav yog ib qho pom tseeb xim dub uas tsis tuaj yeem tshem tawm.

Yog tias tsuas yog ob peb lub teeb hlaws raug hlawv, koj tuaj yeem siv lub tshuab hluav taws xob siv hluav taws xob los txuas ob lub ko taw tom qab lub teeb hlaws kub hnyiab ua ke, thiab lub teeb tuaj yeem siv tau ib txwm; yog tias ntau dhau, koj yuav tsum tau yuav lub teeb hlaws tshiab.

Fault 3: Lub teeb LED yog ci me ntsis

Feem ntau, qhov no yog qhov teeb meem tsis zoo ntawm LED teeb, thiab tsis muaj kev saib xyuas rau lub teeb hauv tsev, thiab lub teeb hloov pauv yog nyob rau ntawm xoom kab. LED teeb yog qhov rhiab heev thiab tuaj yeem teeb nrog qhov tsis muaj zog tam sim no. Txhua tsev neeg siv hluav taws xob hloov hluav taws xob los tua lub teeb thiab lub teeb ci. Tsis muaj teeb meem zoo li cas ua rau lub teeb ci tsis pom kev, peb tuaj yeem siv lub relay los daws nws zoo kawg nkaus, vim hais tias lub relay Tswj cov hlau nyob thiab cov hlau nruab nrab ntawm thiab tawm tib lub sijhawm.

Fault 4: Lub teeb LED flickers thaum teeb pom kev zoo lossis tom qab muab tua.

Kauj Ruam 1, Txheeb xyuas seb qhov nruab nrab thiab nyob ntawm cov xov hlau puas tau thim rov qab. Xyuas seb cov xim ntawm cov hlau ntawm qhov hloov pauv yog xim liab ua ntej, yog tias tsis yog, qhov hloov pauv tuaj yeem tswj cov kab xoom thiab yuav tsum tau hloov lub sijhawm.

Kauj ruam 2, Saib lub teeb flickering. Yog hais tias ntau lub teeb nyob rau hauv chav tsev yog flickering thiab lawv nyob rau hauv tib lub circuits, nws yuav tsum tau vim hais tias ntawm qhov rov qab kev twb kev txuas ntawm lub nruab nrab hlau thiab cov nyob hlau nyob rau hauv lub tis box. Nco ntsoov ua tus cim tom qab kev sib pauv rau kev saib xyuas yav tom ntej.

Step 3, It may be that the lamp produces a self-inductive current. In this case,  you need a 220V relay and connect the relay coil in series to the circuit to absorb the induced current.