amakuru

Mubicuruzwa bya elegitoronike, dukunze kubona igishushanyo cya DC / DC, LDO, ni irihe tandukaniro riri hagati yazo, mugushushanya ibicuruzwa bya elegitoronike uburyo bwo guhitamo nuburyo bwo gukora kugirango twirinde inenge zishushanyije?

DC / DC ni uguhindura umuyaga uhoraho winjiza mumashanyarazi yumuriro uhoraho, ubwoko busanzwe ni Boost (Boost), Buck (Buck), hejuru na hepfo ya voltage hamwe na fonction reaction. umurongo ugenzura.Bombi bahindura imbaraga zinjiza mumashanyarazi runaka, kandi LDO irashobora gukoreshwa gusa nkibisohoka hasi.Mu guhitamo chip power cyane cyane witondere ibipimo:

1. Ibisohoka biva hanze.DC / DC ibisohoka voltage irashobora guhindurwa no kurwanya ibitekerezo, LDO ifite ubwoko bubiri bwibisohoka kandi bisohoka;

2, ibyinjira nibisohoka voltage itandukaniro. Itandukaniro rya voltage hagati yinjiza nibisohoka nibintu byingenzi bya LDO.Ibisohoka bya LDO bingana niyinjiza ryubu.Gutoya itandukaniro ryumuvuduko, niko imbaraga zikoreshwa ningufu nyinshi za chip.

3. Ibisohoka ntarengwa.LDO mubisanzwe ifite umusaruro mwinshi wa mA magana, mugihe DCDC ifite umusaruro mwinshi wa A cyangwa nyinshi.

4. Kwinjiza voltage. Chipi zitandukanye zifite ibisabwa bitandukanye byo kwinjiza.

5. Kuvunika / urusaku. Umuvurungano / urusaku rwa DC / DC ukorera muri reta yo guhinduranya ni bibi kurenza ibya LDO, bityo umuzunguruko wunvikana cyane mugihe cyagenwe ugomba kugerageza guhitamo amashanyarazi ya LDO.

6. Gukora neza.Niba ibyinjira nibisohoka voltage byegeranye, imikorere igereranije yo guhitamo LDO iruta DC / DC;niba itandukaniro ryumuvuduko ari rinini, ugereranije imikorere yo guhitamo DC / DC iri hejuru.Kubera ko ibyasohotse muri LDO mubusanzwe ari kimwe nibyinjira byinjira, igitonyanga cya voltage nini cyane kandi ingufu zikoreshwa kuri LDO nini cyane, imikorere ntabwo iri hejuru.

7. Igiciro hamwe nu muzenguruko wa peripheri. Igiciro cya LDO kiri munsi yicya DCDC, kandi umuzenguruko wa peripheri uroroshye.