Muzvigadzirwa zvemagetsi, tinowanzoona nhamba yeDC / DC, LDO, ndeipi misiyano pakati pavo, mukugadzirwa kwezvigadzirwa zvemagetsi kuti ungasarudza sei uye kuti ungagadzira sei kudzivirira kukanganisa kwekugadzirwa kwedunhu?
DC/DC ndeye kushandura anogara aripo ekuisa voltage kuita imwe anogara aripo anobuda voltage, akajairika marudzi iBoost (Boost), Buck (Buck), kumusoro nekudzika voltage uye reverse phase chimiro. Linear regulators.Iwo ese ari maviri anodzikamisa magetsi ekuisa kune imwe voltage, uye iyo LDO inogona kungoshandiswa sedanho-pasi kubuda.Mukusarudzwa kwesimba chip kunyanya teerera kune paramita:
1. Output voltage.DC/DC output voltage inogona kugadziriswa nekupikisa mhinduro, LDO ine marudzi maviri ezvakagadziriswa zvakagadziriswa uye zvinogadziriswa;
2, kupinza uye kubuda kwemagetsi musiyano.Musiyano wemagetsi pakati pekuisa uye kubuda ndiyo inokosha parameter yeLDO.Ikozvino yakabuda yeLDO yakaenzana neinopinza ikozvino.Iyo diki mutsauko wekumanikidza, idiki mashandisirwo emagetsi uye yakakwirira kushanda kweiyo chip.
3. Maximum output current.LDO kazhinji ine A maximum output current mazana akati wandei mA, ukuwo DCDC ine A maximum output current ye akati wandei A kana kupfuura.
4. Input voltage.Machipisi akasiyana ane akasiyana ekuisa zvinodiwa.
5. Ripple / ruzha.Kuputika / ruzha rweDC / DC kushanda mumamiriro ekuchinja kwakaipa kupfuura yeLDO, saka dunhu rinonyanya kunetseka panguva yekugadzira rinofanira kuedza kusarudza simba reLDO.
6. Kubudirira.Kana iyo inopinza uye yakabuda voltage iri pedyo, hukama hwakanaka hwekusarudza LDO yakakwirira kudarika DC / DC;kana mutsauko wekumanikidza wakakura, hukama hwekusarudza DC / DC hwakakwira.Sezvo kubuda kwazvino kweLDO kwakangofanana nekuisa ikozvino, kudonha kwemagetsi kwakakurisa uye simba rinoshandiswa paLDO rakakura kwazvo, kushanda nesimba hakuna kukwirira.
7. Mutengo uye peripheral circuit.Mutengo weLDO wakaderera pane weDCDC, uye dunhu rinotenderera riri nyore.
Nguva yekutumira: Mar-15-2022