Ib txoj hauv kev txo qis voltage ripple thiab suab nrov
Txo EMI cuam tshuam
Siv lub plhaub hlau ua cov ntaub thaiv npog los txo cov hluav taws xob hluav taws xob sab nraud hluav taws xob cuam tshuam. Txhawm rau txo qhov cuam tshuam ntawm electromagnetic cuam tshuam los ntawm cov kab hluav taws xob tawm tswv yim, ib qho EMI lim tau ntxiv ntawm lub zog hluav taws xob kawg.
Siv cov capacitors nrog kev ua haujlwm zoo siab thiab qis ESR ntawm cov zis kawg
Aluminium los yog tantalum electrolytic capacitors siv polymer khoom electrolytes raws li cov zis capacitors yog qhov zoo tshaj plaws, cov yam ntxwv ntawm me me thiab loj hluav taws xob muaj peev xwm, tsis tshua muaj ESR impedance ntawm high zaus, thiab tso cai ripple tam sim no. Nws yog qhov tsim nyog tshaj plaws rau kev ua haujlwm siab, tsis tshua muaj hluav taws xob, qib siab tam sim no-down DC / DC converters thiab DC / DC module fais fab khoom siv ua cov khoom siv hluav taws xob.
Txais siv zaus synchronization nrog cov khoom system
Txhawm rau txo cov suab nrov, qhov hloov zaus ntawm lub zog yuav tsum tau synchronized nrog zaus hauv qhov system, uas yog, lub zog hloov hluav taws xob yuav tsum siv sab nraud synchronization kom nkag mus rau qhov zaus ntawm lub kaw lus, kom lub zaus hloov pauv yog tib yam. qhov system zaus.
Zam kev sib cuam tshuam ntawm ntau lub zog modules
Ntau yam khoom siv hluav taws xob tuaj yeem ua haujlwm ua ke ntawm tib lub PCB. Yog hais tias lub module fais fab mov yog unshielded thiab kaw ua ke, nws yuav cuam tshuam rau ib leeg thiab ua rau kom lub suab nrov tso zis voltage. Txhawm rau kom tsis txhob muaj kev cuam tshuam txog kev cuam tshuam, kev tiv thaiv kev tiv thaiv tuaj yeem raug coj los yog lawv tuaj yeem khaws cia kom tsim nyog kom tsis txhob cuam tshuam los ntawm lawv qhov kev cuam tshuam.
Ntxiv LC lim
Txhawm rau txo cov ripple thiab suab nrov ntawm lub module fais fab mov, LC cov ntxaij lim dej tuaj yeem muab ntxiv rau cov tswv yim thiab cov zis tawm ntawm DC / DC module.
Nce LDO
Ntxiv qhov tsis tshua muaj hluav taws xob sib txawv linear regulator (LDO) tom qab cov khoom siv hluav taws xob hloov pauv lossis cov khoom siv hluav taws xob tuaj yeem txo cov suab nrov kom ua tau raws li cov kev xav tau ntawm circuits nrog cov suab nrov tshwj xeeb, thiab cov suab nrov tuaj yeem ncav cuag μ Class V.
Vim tias qhov sib txawv ntawm qhov sib txawv (qhov sib txawv ntawm qhov kev tawm tswv yim thiab cov zis hluav taws xob) ntawm LDO tsuas yog ob peb puas mV, tus qauv hluav taws xob tuaj yeem tso tawm thaum cov khoom siv hluav taws xob hloov pauv me ntsis siab dua li ntawm LDO los ntawm ob peb puas mV, thiab nws poob tsis tseem ceeb.
Ntxiv active EMI lim thiab nquag tso zis ripple attenuators
Active EMI cov ntxaij lim dej tuaj yeem ua rau muaj kev sib txawv thiab cov suab nrov sib txawv ntawm 150kHz thiab 30MHz, thiab tshwj xeeb tshaj yog ua kom muaj suab nrov tsawg. Ntawm 250kHz, nws tuaj yeem ua rau 60dB hom suab nrov thiab 80dB txawv hom suab nrov, thiab qhov ua tau zoo tuaj yeem ncav cuag 99 feem pua ntawm tag nrho cov khoom.
Cov zis ripple attenuator tuaj yeem txo lub zog tso zis ripple thiab suab nrov ntau dua 30dB nyob rau hauv thaj tsam ntawm 1-500kHz, thiab tuaj yeem txhim kho cov lus teb zoo thiab txo cov zis tawm.
