Hloov Cov Khoom Siv Hluav Taws Xob: Kev daws teeb meem kom txo qis Ripple thiab suab nrov Voltage
Lub capacitor nrog kev ua haujlwm zoo siab thiab qis ESR yog siv ntawm qhov kawg tso zis
Nws yog qhov zoo tshaj plaws los siv txhuas lossis tantalum electrolytic capacitors nrog cov khoom siv hluav taws xob polymer ua cov khoom siv hluav taws xob, uas yog tus cwj pwm los ntawm qhov loj me thiab loj capacitance, tsis tshua muaj ESR impedance ntawm lub siab zaus, thiab loj ripple tam sim no. Nws yog qhov tsim nyog tshaj plaws rau kev ua haujlwm siab, qis-voltage, high-tam sim no kauj ruam-down DC / DC converters thiab DC / DC module fais fab khoom siv raws li cov zis capacitor.
Txais zaus synchronization nrog ntau lawm system
Txhawm rau txo cov suab nrov, qhov hloov zaus ntawm lub zog hluav taws xob yuav tsum tau synchronized nrog zaus hauv qhov system, uas yog, lub zog hloov hluav taws xob tau txais qhov zaus ntawm cov khoom siv sab nraud synchronous, kom lub zaus hloov pauv yog tib yam. raws li qhov zaus ntawm qhov system.
Tsis txhob muaj kev cuam tshuam ntawm ntau lub zog modules
Tej zaum yuav muaj ntau yam khoom siv hluav taws xob ua haujlwm ua ke ntawm tib lub PCB. Yog tias cov khoom siv hluav taws xob module tsis muaj kev tiv thaiv thiab lawv nyob ze ua ke, lawv tuaj yeem cuam tshuam rau ib leeg thiab ua kom cov suab nrov ntxiv. Txhawm rau zam qhov kev cuam tshuam ntawm kev sib nrig sib no, kev tiv thaiv kev tiv thaiv tuaj yeem raug txais los yog lawv tuaj yeem khaws cia kom zoo kom txo tau kev cuam tshuam ntawm lawv qhov kev cuam tshuam.
Ntxiv LC lim
Txhawm rau txo qhov ripple thiab suab nrov ntawm lub module fais fab mov, lub LC lim tuaj yeem muab ntxiv rau cov tswv yim thiab cov zis kawg ntawm DC / DC module.
nce LDO
Ntxiv rau qhov qis-dropout linear regulator (LDO) tom qab hloov hluav taws xob lossis module fais fab tso zis 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 μV.
Txij li thaum qhov sib txawv ntawm qhov sib txawv ntawm LDO (qhov sib txawv ntawm cov tswv yim thiab cov zis voltages) tsuas yog ob peb puas mV, tus qauv voltage tuaj yeem tso tawm thaum cov zis ntawm qhov hloov hluav taws xob yog ob peb puas mV siab dua li ntawm LDO, thiab qhov poob tsis loj.
Ntxiv active EMI lim thiab nquag tso zis ripple attenuator
Active EMI cov ntxaij lim dej tuaj yeem ua kom lub suab nrov sib txawv thiab hom sib txawv ntawm 150kHz thiab 30MHz, thiab muaj txiaj ntsig tshwj xeeb ntawm attenuating suab nrov tsawg zaus. Ntawm 250kHz, nws tuaj yeem ua rau 60dB ntawm cov suab nrov nrov thiab 80dB ntawm cov suab nrov sib txawv, thiab qhov ua tau zoo tuaj yeem ncav cuag 99 feem pua ntawm tag nrho cov khoom.
Cov zis ripple attenuator tuaj yeem txo cov khoom siv hluav taws xob 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.
