Capacitors inotamba yakakosha basa mune yakakwira-Speed PCB Dhizaini uye kazhinji inonyanya kushandiswa mudziyo pane PCBS. MuPCB, capacitors inowanzo kukamurwa kuita firita capacitors, decoupling capacitors, simba rekuchengetedza simba, nezvimwe.
1.power Exput Capacitor, Filter Capacitor
Isu tinowanzo tarisa kune iyo capacitor yeiyo yekuisa uye inobuda matunhu eSimba module seye firita capacitor. Kunzwisisa kuri nyore ndekwekuti iyo capacitritritritor inoenderana nekugadzikana kweiyo yekuisa uye yekubuda simba kuwanikwa. MuSimba Module, iyo firita capacitor inofanira kunge yakakura pamberi pedu. Sezvinoratidzwa pamufananidzo, iyo firita capacitor yakaiswa yakakura uye idiki mumuseve museve.
Paunenge uchigadzira iyo Simba Kuwanikwa, inofanirwa kucherechedzwa kuti iyo wiring yeganda uye yeganda rakaringana rakakwana uye huwandu hwemakomba hwakakwana kuti uve nechokwadi chekuti kuyerera kunosangana nezvinodiwa. Upamhi nehuwandu hwemaburi anoongororwa pamwe chete neazvino.
Simba rekuisa funcit
Iyo Power Input capacitor inoumba chiuno chazvino neyekuchinjisa chiuno. Ichi chiuno chazvino chinosiyana neakakura amplitude, iout amplitude. Iyo frequency ndiko kushandura frequency. Munguva yekuchinjira yeDCDC Chip, iyo yazvino inogadzirwa neiyi ino yazvino loop shanduko, kusanganisira kukurumidza di / dt.
Mune iyo synchronous buck mode, iyo inoenderera mberi nzira inofanira kupfuura neGND PIN yePIP yeChip, uye iyo yekuisa Capacitor inofanira kubatana pakati peGND uye vini yechip, saka nzira inogona kunge ipfupi uye yakapfupika
Iyo nharaunda yerudzi urwu iripo idiki zvakakwana, zvirinani rwizi rwekunze rwemhete iyi yazvino ichave.
2.decoupling capacitor
Iyo Power Pin yekanyanya-mhanya iC Muchimiro chaicho, kana pasina nzvimbo yeiyo decoupling capacitor, inogona kubviswa sezvakakodzera.
Iko kushora kugona kweiyo IC Simba Supply PIN Kazhinji kazhinji, senge 0.101μf, etc.Comming package iri idiki, yakadai se0402 package, 0603 package uye zvichingodaro. Paunenge uchiisa quapling capacitors, iyo inotevera pfungwa dzinofanira kucherechedzwa.
. Zvinonzwisisika, iyo canacitor ine imwe yekushora radius, saka iyo pfungwa yehusaruro inofanira kuitwa zvakanyatsoitwa.
(2. Chinangwa chekukakavara ndechekuderedza kutungamira kwekutungamira uye chivimbo simba rekuisa simba.
. Kutungamira kunofanirawo kuitwa, uye gomba rinofanira kunge rakakura sezvinobvira. Kana gomba rine denderedzwa re 10mil inogona kushandiswa, gomba 8mi haifanirwe kushandiswa.
(4) Ita shuwa kuti iyo decoupling loop ishoma sezvinobvira
3.Engy chengetedza capacitor
Basa rekuchengetera simba rekuchengetera simba ndere kuve nechokwadi chekuti IC inogona kupa simba munguva pfupi kana uchishandisa magetsi. Iko kugona kwesimba rekuchengetera simba rinowanzo kuve rakakura, uye iyo inoenderana package iriwo hombe. MuPCB, iyo simba rekuchengetera simba rinogona kunge riri kure nechishandiso, asi kwete kure zvakanyanya, sezvakaratidzwa mumufananidzo. Iyo yakajairika simba kuchengetedza capacitor fan-gomba mode inoratidzwa mumufananidzo.
Misimboti ye fan holes uye tambo dzakatevera:
.
.
. Chokwadi chinoda kutarisisa kutarisisa
