Umwimerere mushya LM25118Q1MH / NOPB Yuzuzanya Yumuzingi IC REG CTRLR BUCK 20TSSOP Ic Chip LM25118Q1MH / NOPB

1. Guhuriza hamwe

Ibyiza.

Ubushobozi buhanitse: kurwanya imbere ya mos tube ni nto cyane kandi kugabanuka kwa leta kuri voltage ni nto cyane ugereranije na Cosmos voltage igabanuka ya diode ya Schottky.

Ibibi.

Ihungabana ridahagije: ukeneye gushushanya umuzenguruko wa drayike, kandi ukirinda umuyoboro wo hejuru no hepfo icyarimwe, umuzenguruko uraruhije, bikavamo umutekano udahagije

2. amafaranga adahuje

Ibyiza.

Ubushobozi buke: Igabanuka rya voltage ya Schottky ni nini, ugereranije no gukoresha ingufu zitangwa na mos tube

Ibibi.

Ihungabana rikomeye: ntihazabaho icyarimwe icyarimwe cyo hejuru no hepfo.

1: PFM (uburyo bwo guhinduranya pulse)

Guhindura ubugari bwa pulse ni byanze bikunze, muguhindura inshuro ziva mumisemburo, ibisohoka voltage ihagaze neza.yo kugenzura ubwoko bufite inyungu zo gukoresha ingufu nke nubwo zikoreshwa igihe kirekire, cyane cyane kumitwaro mito.

2: PWM (Impinduka y'ubugari bwa pulse)

Ubwoko bwa PWM bugenzura bukora neza kandi bufite umusaruro mwiza wa voltage ripple n urusaku.

Mu ncamake: Muri rusange, itandukaniro ryimikorere hagati ya DC-DC ihindura hamwe nuburyo bubiri butandukanye bwo guhindura, PFM na PWM, nibi bikurikira.

Inshuro ya PWM, uburyo bwo guhitamo inshingano za PFM.Ubwoko bwa PWM / PFM bwubwoko bwa PFM kugenzura imizigo mito no guhinduranya byikora kuri PWM kugenzura imitwaro iremereye.

3.

Ni irihe tandukaniro riri hagati yo kuzamura IC hamwe no kuzamura IC?

Itandukaniro nyamukuru hagati yo kuzamura IC hamwe no kuzamura imbaraga ni itandukaniro muburyo bwo gukosora.

Iterambere rya syncronique IC ikoresha MOS kubera ko imiyoboro ya MOS ifite imbaraga nke cyane zo kurwanya imbere imbere kumugaragaro kandi igihombo mugikorwa cyo gukosora ni gito cyane, kuburyo imikorere yo kuzamura imbaraga ari nyinshi kandi kubyara ubushyuhe ni bike.Irashobora gukoreshwa muburyo bukomeye bwo kuzamura porogaramu.

Kuzamura imiyoboro ya IC ikoresha diode kugirango ikosorwe.Diode ifite ihuriro rya voltage igabanuka mugikorwa cyo gukosora.Iyo urwego rugezweho murwego rwo gukosora, niko igihombo kinini.Mubisanzwe, imbaraga ntishobora kuba imbaraga nyinshi.