Adapta yemagetsi inozivikanwa seyakanyanya-kushanda uye simba rekuchengetedza magetsi.Inomiririra nzira yekusimudzira yemagetsi akadzorwa.Parizvino, monolithic power adapter integrated circuit yakashandiswa zvakanyanya nekuda kwemabhenefiti ayo akakosha ekubatanidzwa kwepamusoro, kudhura kwekuita, iyo iri nyore yedunhu redunhu uye yakanakisa performance index.Yakava chigadzirwa chakasarudzwa chepakati uye pasi-simba simba adapta mukugadzira.
Pulse width modulation
A modulation control mode inowanzoshandiswa mumagetsi adapter.Pulse width modulation is an analog control mode, iyo inogadzirisa bias ye transistor base kana MOS gedhi zvichienderana nekuchinja kwemutoro unoenderana kushandura conduction nguva ye transistor kana MOS, kuitira kuti uchinje kubuda kwekuchinja kwakagadziriswa magetsi.Chimiro chayo ndechekuchengetedza shanduko yekuchinja nguva dzose, ndiko kuti, kutenderera kunoramba kusingachinji, uye kushandura pulse hupamhi kuti uderedze shanduko yekubuda kwevoltage yemagetsi adapta kana grid voltage uye mutoro uchichinja.
Muchinjikwa wekugadzirisa chiyero
Cross load regulation rate inoreva shanduko yemagetsi ekubuda kunokonzerwa nekushanduka kwemutoro mune yakawanda-channel inobuda simba adapta.Shanduko yemutoro wesimba ichakonzera shanduko yekubuda kwemagetsi.Kana mutoro unowedzera, kubuda kunoderera.Pane zvinopesana, kana mutoro unoderera, kubuda kunowedzera.Iko kubudiswa kwekuchinja kunokonzerwa nekugadzirisa simba rekugadzirisa simba kuduku, uye nhamba huru ndeye 3% - 5%.Iyo indekisi yakakosha kuyera iyo voltage inodzikamisa kuita kweakawanda-channel inobuda simba adapta.
Parallel operation
Kuti uvandudze kuburitsa ikozvino uye kubuda simba, akawanda emagetsi maadapter anogona kushandiswa akafanana.Munguva yekushanda kwakafanana, magetsi emagetsi emagetsi ega ega emagetsi anofanirwa kunge akafanana (simba rawo rekubuda rinobvumirwa kuve rakasiyana), uye nzira yekugovera yazvino (inozonzi seyazvino nzira yekugovana) inogamuchirwa kuti ive nechokwadi chekuti kubuda kweimwe neimwe. adapta yemagetsi inogoverwa zvinoenderana neyakatsanangurwa proportional coefficient.
Electromagnetic interference filter
Electromagnetic interference filter, inozivikanwawo se "EMI sefa", ndeyemagetsi wedunhu midziyo inoshandiswa kudzvanyirira kukanganiswa kwemagetsi, kunyanya ruzha mumutsara wemagetsi kana mutsara wechiratidzo.Icho chishandiso chekusefa chinogona kunyatso kudzvanya ruzha rwegidhi remagetsi uye kugadzirisa iyo anti-kupindira kugona kwemidziyo yemagetsi uye kuvimbika kwehurongwa.Electromagnetic interference filter ndeye bidirectional RF sefa.Kune rimwe divi, inofanirwa kusefa kunze kwekunze kwemagetsi kukanganiswa kwakaunzwa kubva ku AC magetsi grid;
Kune rimwe divi, inogona zvakare kudzivirira kukanganiswa kweruzha rwekunze kwemidziyo yayo, kuitira kuti isakanganise kushanda kwakajairwa kwezvimwe zvigadzirwa zvemagetsi munzvimbo imwechete yemagetsi.Iyo EMI sefa inogona kudzvanya ese ari maviri akateedzana modhi kukanganisika uye yakajairika mode kukanganiswa.Iyo EMI sefa ichave yakabatana kune iyo AC iri kuuya yekupedzisira yemagetsi adapta.
radiator
Chishandiso chekupisa kupisa chinoshandiswa kudzikisa tembiricha yekushanda yemidziyo yesemiconductor, iyo inogona kudzivirira tembiricha yehubhu inodarika tembiricha yekusangana nekuda kwekushayikwa kwekupisa kwekupisa, kuitira kuti adapta yemagetsi idzivirire kubva pakupisa.Nzira yekupisa kupisa inobva pachubhu core, diki kupisa disipation ndiro (kana chubhu shell) > radiator → pakupedzisira kusvika kumhepo yakatenderedza.Kune akawanda marudzi emaradiator, akadai seflat plate type, printed board (PCB) type, mbabvu mhando, interdigital type zvichingodaro.Rayedhita inofanira kuchengetedzwa kure nenzvimbo dzekupisa semagetsi frequency transformer uye simba switch chubhu kusvika pazvinobvira.
Electronic mutoro
Iyo utility modhi ine chekuita nechinhu chemagetsi chinoshandiswa zvakanyanya semagetsi ekubuda.Iyo yemagetsi mutoro inogona kugadziridzwa zvine simba pasi pekutonga kwekombuta.Electronic load chinhu chinopedza simba remagetsi nekudzora simba remukati (MOSFET) kana conduction flux (duty cycle) ye transistor uye kuvimba nesimba rakaparara rechubhu yemagetsi.
simba chinhu
Chinhu chesimba chine chekuita nemutoro wemhando yedunhu.Inomiririra chiyero chesimba rinoshanda kune simba rinoonekwa.
simba factor kugadzirisa
PFC kwenguva pfupi.Tsanangudzo yesimba rekugadzirisa tekinoroji ndeye: simba chinhu (PF) chiyero chesimba rinoshanda P kune inooneka simba s.Basa rayo ndere kuchengetedza iyo AC yekupinda ikozvino muchikamu neiyo AC yekupinza voltage, kusefa kunze kwazvino harmonics, uye kuwedzera simba chinhu chemidziyo kune yakafanotemerwa kukosha pedyo ne1.
Passive simba factor kugadzirisa
Passive simba factor kururamisa inonzi PPFC (inozivikanwawo se passive PFC).Inoshandisa passive component inductance kune simba factor kugadzirisa.Dunhu rayo riri nyore uye rakaderera mutengo, asi riri nyore kugadzira ruzha uye rinogona chete kuwedzera simba chinhu kusvika pa80%.Iwo makuru} mabhenefiti epasirese simba chinhu kururamisa ndeaya: nyore, yakaderera mutengo, kuvimbika uye diki EMI.Izvo zvisingabatsiri ndezvi: saizi hombe uye uremu, zvakaoma kuwana yakakwira simba chinhu, uye kushanda kwekushanda kune hukama ne frequency, mutoro uye magetsi ekuisa.
Active simba factor kugadzirisa
Active power factor correction inonzi APFC (inozivikanwawo se inoshanda PFC).Active simba chinhu kururamisa kunoreva kuwedzera iyo yekuisa simba chinhu kuburikidza neino shanda dunhu (ino shanda dunhu), uye kudzora chigadziriso chekuchinja kuti iite yekuisa yazvino waveform inotevera yekuisa voltage waveform.Kuenzaniswa ne passive power factor correction circuit (passive circuit), kuwedzera inductance uye capacitance yakanyanya kuoma, uye kuvandudzwa kwesimba chinhu chiri nani, asi mutengo wakakwirira uye kuvimbika kuchaderedzwa.Simba rekushandura redunhu rinowedzerwa pakati peyekupinza rectifier bhiriji uye inobuda sefa capacitor kugadzirisa iyo yekupinda ikozvino mune sine wave ine nhanho yakafanana neyekuisa voltage uye pasina kukanganisa, uye simba chinhu chinogona kusvika 0.90 ~ 0.99.
Nguva yekutumira: Kubvumbi-12-2022
