LED cov ntxaij vab tshaus hluav taws xob feem ntau muaj thaj tsam loj, thiab kev siv hluav taws xob tag nrho kuj tseem loj, yog li nws yog qhov tseem ceeb tshwj xeeb los ua kom muaj zog siv hluav taws xob ntawm lub vijtsam. Yog li, yog tias koj xav ua kom lub zog ntawm LED hluav taws xob tso saib, LED zaub manufacturers ceeb toom koj los daws cov teeb meem hauv qab no
coj electronic display
1. Tsim nyog xaiv cov khoom siv hloov pauv: Qhov no yog qhov sib npaug ntawm tus nqi thiab kev ua haujlwm. Cov neeg siv khoom xav tau dab tsi thiab cov khoom siv zoo li cas, tab sis nws yuav tsum tsim nyog. Yog tias koj xav tau kev ua haujlwm zoo, tsis muaj qhov tsis ntseeg tias COOL MOS, qis VF tso zis diode.
2. Ntau tus neeg tsis quav ntsej qhov no thaum xaiv lub tshuab hluav taws xob zoo electrolytic, thiab qhov poob ntawm electrolysis loj heev.
3. Raws li lub hauv paus ntsiab lus hais tias kev siv hluav taws xob tsim ntawm qhov pib ua haujlwm tau zoo, nws yuav tsum tau txiav txim siab. Tam sim no, ntau lub chips muaj HV startup pins, thiab qhov pib tam sim no tau qis dua thiab qis dua. Qhov no yog kom paub ntau ntxiv txog cov khoom siv tshiab. Tau kawg, muaj ntau ntxiv kuv tsis xav tias nws tsim nyog rau kev tsav tsheb LED.
4. Lub voj tseem ceeb tam sim no PCB yuav tsum luv li sai tau: Kev paub thiab kev teeb tsa ntawm LAYPCB tsis muaj dab tsi. Txoj kev nrawm yog saib cov haujlwm ntawm cov tuam txhab loj.
5. Ua kom zoo rau kev tsim cov kev hloov pauv tsis zoo: txo qis eddy tam sim no poob los ntawm ringing. Qhov no nyuaj dua. Ua ntej, koj yuav tsum paub qhov yooj yim kev paub ntawm electromagnetics thiab tsim ib tug tsim nyog transformer. Qhov tseem ceeb tshaj plaws yog kev ua siab ntev. Txawm hais tias koj xav txog kev txhim kho qhov ua tau zoo los ntawm 0.5 feem pua, koj yuav tsum sim.
6. Chip auxiliary power supply optimization Qhov taw tes no tau taw qhia nyob rau hauv ST's L6562D daim ntawv thov daim ntawv, 15V yog qhov zoo tshaj plaws, tab sis LED feem ntau muaj qhov hluav taws xob dav dav, yog li kuv xaiv yog ntxiv cov kab hluav taws xob hluav taws xob los ua kom cov nti ua haujlwm ntawm 15V rau txo qhov poob.
7. Yog hais tias qhov optimized tsim ntawm cov tswv yim EMI ib feem tau dhau cov kev cai ntawm kev nyab xeeb, qhov no yog ntau elaborate, feem ntau yog vim muaj kev paub.
8. Xaiv cov qauv topology ua haujlwm siab. Qhov no yog qhov pib ntawm qhov kev xaiv, xws li PWM thiab QR PFM. Tam sim no, thaum cov neeg siv khoom muab cov kev xav tau ntawm kev ua tau zoo, nws yog ib qho tsim nyog los ntsuas qhov topology xaiv.
