Ubushobozi bugira uruhare runini mugushushanya byihuse PCB kandi akenshi nibikoresho byakoreshejwe kuri PCB. Muri PCB, ubushobozi ubu bukunze bugabanywamo ubufasha, decoupling cacum, ubushobozi bwo kubika ingufu, nibindi

1.Ubushobozi bwo gusohoka, kuyungurura ubushobozi

Mubisanzwe twerekeza ku bushobozi bwo kwinjiza no gusohoka mu kazu k'imbaraga ka Module nkiyanduza. Gusobanukirwa byoroshye nuko hashingiwe gutuma habaho umutekano wibitekerezo nibisohoka. Mu module yububasha, kwanga agaciro bigomba kuba binini mbere ya bito. Nkuko bigaragara ku ishusho, kubasha kuyungurura byashyizwe binini hanyuma bito mu cyerekezo cyimyambi.

Mugihe ushushanya amashanyarazi, twakagombye kumenya ko uruhu rwinshi kandi rwumuringa runini runini ruhagije kandi umubare wimyobo birahagije kugirango ukemure ko ubushobozi bwurumbuka bukaba bujuje ibyifuzo. Ubugari n'umubare wimyobo bisuzumwa bifatanije nubu.

Gukoresha imbaraga

Imyitozo yo kwinjiza imbaraga zikora urujijo ubungubu hamwe na swilling loop. Uku kuruho ibihuru biratandukanye na amplitude nini, iout amplitude. Inshuro ni inshuro yahinduye. Mugihe cyo guhinduranya Chip ya DCDC, ikiriho cyakozwe niyi mpinduka zubu, zirimo byihuse di / dt.

Muburyo bwa Synchroous Buck, inzira ikomeza igomba kunyura muri GND PIN ya chip, kandi ubushobozi bwinjiza bugomba guhuzwa hagati ya gnd na vin ya chip, bityo inzira imwe ya chip, bityo inzira rero irashobora kuba magufi kandi ndende.

Agace k'iyi mpeta iriho ni nto bihagije, nibyiza imirasire yo hanze yiyi mpeta iriho.

2.Gukundana
Imbaraga PIN yihuta-yihuta ikenera ubushobozi buhagije bwo gutesha agaciro, nibyiza kimwe kuri pin. Mu gishushanyo nyacyo, niba nta mwanya wo guhaha decoupling, birashobora gusibwa uko bikwiye.
Ubushobozi bwo gutereta Ibara Pin mubisanzwe ni bito, nka 0.1μf, 0.01μ. Ipaki ihuye nayo ni ntoya, 0603 paki kandi. Mugihe ushira ubushobozi bwo gushushanya, ingingo zikurikira zigomba kwitonderwa.
. Igitabo, ubushobozi bufite radiyo runaka yo gutesha agaciro, niko ihame ryo kumenya neza rigomba gushyirwa mubikorwa byimazeyo.
.) Intego yo kubyimba ni ukugabanya inductance ismocance no kwemeza ko imikorere yo gutanga amashanyarazi.
. Iyobokabikorwa naryo rigomba kandi kubyimba, kandi umwobo ugomba kuba munini bishoboka. Niba umwobo ufite umukinnyi wa 10mil urashobora gukoreshwa, umwobo wa 8mil ntugomba gukoreshwa.
(4) Menya neza ko ikibuga cyo gutesha agaciro ari gito gishoboka

3.Energy yo kubika umufasha
Uruhare rwo kubika ingufu ni ukureba ko IC ishobora gutanga imbaraga mugihe gito mugihe ukoresheje amashanyarazi. Ubushobozi bwo kubika ingufu ni kinini, kandi paki ihuye nayo nini. Muri PCB, ubushobozi bwo kubika ingufu burashobora kuba kure yigikoresho, ariko ntabwo ari kure cyane nkuko bigaragara ku ishusho. Gukoresha ingufu zikoreshwa mu mbaraga Fan-Hole uburyo bwerekanwe kumashusho.

Amahame yo mu mwobo n'umusatsi ni aya akurikira:
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. Ukuri gukenera gutekereza cyane