Hloov Cov Khoom Siv Hluav Taws Xob: Kev daws teeb meem kom txo qis Ripple thiab suab nrov Voltage
Txais siv cov capacitors nrog kev ua haujlwm zoo siab thiab qis ESR ntawm cov zis sab
Kev siv cov polymer solid-state electrolyte aluminium los yog tantalum electrolytic capacitors rau qhov tso zis capacitor yog qhov zoo tshaj plaws, uas yog tus cwj pwm los ntawm qhov loj me thiab muaj peev xwm loj, tsis tshua muaj ESR impedance ntawm lub siab zaus, tso cai rau qhov 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 converter thiab DC / DC module fais fab mov raws li cov zis capacitor.
Txais siv zaus synchronization nrog cov khoom system
Txhawm rau txo cov suab nrov, qhov hloov zaus ntawm cov khoom siv hluav taws xob yuav tsum tau synchronized nrog zaus hauv qhov system, piv txwv li, hloov hluav taws xob hloov hluav taws xob txais kev sib txuas sab nraud kom nkag mus rau qhov zaus ntawm qhov system, yog li ntawd qhov zaus ntawm qhov hloov pauv yog. tib yam li 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 hais tias lub module fais fab mov tsis muaj kev tiv thaiv, thiab nyob ze rau ib leeg, nws yuav cuam tshuam rau ib leeg kom nce lub suab nrov nrov. Txhawm rau kom tsis txhob muaj kev cuam tshuam txog kev sib nrig sib, kev tiv thaiv kev tiv thaiv tuaj yeem siv los yog lawv tuaj yeem txav mus deb ntawm ib leeg kom txo tau lawv qhov kev cuam tshuam.
Nce LC lim
Txhawm rau txo qhov ripple thiab suab nrov ntawm lub module fais fab mov, koj tuaj yeem ntxiv LC cov ntxaij lim dej rau cov tswv yim thiab cov zis ntawm DC / DC module.
Ntxiv LDO
Nyob rau hauv lub switching fais fab mov los yog module fais fab mov tso zis thiab ces ntxiv ib tug tsawg dropout linear regulator (LDO) yuav txo tau cov zis suab nrov kom tau raws li cov kev xav tau ntawm cov kev xav tau tshwj xeeb ntawm lub suab nrov Circuit Court, cov zis suab nrov tuaj yeem nce mus txog μV qib.
Raws li qhov sib txawv ntawm LDO voltage (qhov sib txawv ntawm qhov tawm tswv yim thiab cov zis hluav taws xob) tsuas yog ob peb puas mV, qhov tso zis ntawm qhov hloov hluav taws xob hloov pauv me ntsis siab dua li LDO ob peb puas mV tuaj yeem tso tawm tus qauv voltage, thiab nws qhov poob tsis loj. .
Ua kom nquag nquag EMI lim thiab nquag tso zis ripple attenuator
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 ntawm cov suab nrov nrov thiab 80dB ntawm cov suab nrov sib txawv nrog 99% kev ua haujlwm ntawm tag nrho cov khoom.
Output ripple attenuator tuaj yeem txo cov khoom siv hluav taws xob tso tawm ripple thiab suab nrov nyob rau hauv thaj tsam ntawm 1 txog 500kHz ntau dua 30dB, thiab tuaj yeem txhim kho cov lus teb zoo thiab txo cov zis tawm.
