Adaputala yamagetsi imadziwika kuti ndiyothandiza kwambiri komanso yopulumutsa mphamvu. Imayimira njira yachitukuko yamagetsi oyendetsedwa bwino. Pakali pano, monolithic power adapter Integrated circuit yakhala ikugwiritsidwa ntchito kwambiri chifukwa cha ubwino wake wophatikizira kwambiri, ntchito yotsika mtengo, yophweka yozungulira yozungulira komanso ndondomeko yabwino kwambiri. Yakhala chinthu chokondedwa chapakati ndi otsika mphamvu adaputala mphamvu mu kapangidwe.
Kusinthasintha m'lifupi mwake
Makina owongolera ma module omwe amagwiritsidwa ntchito kwambiri mu adaputala yamagetsi. Kusinthasintha kwapang'onopang'ono ndi njira yoyendetsera analogi, yomwe imasintha kukondera kwa transistor base kapena MOS pachipata molingana ndi kusintha kwa katundu wofananayo kusintha nthawi yoyendetsa ya transistor kapena MOS, kuti asinthe kutulutsa kwamagetsi oyendetsedwa ndi magetsi. Makhalidwe ake ndikusunga ma frequency osinthika nthawi zonse, ndiye kuti, kusintha kwakusintha sikunasinthe, ndikusintha kuchuluka kwamphamvu kuti muchepetse kusintha kwa voteji ya adaputala yamagetsi pamene voteji ya gridi ndi kusintha kwa katundu.
Mtengo wosinthira katundu
Cross load regulation rate imatanthawuza kusintha kwa magetsi omwe amachokera chifukwa cha kusintha kwa katundu mu adaputala yamagetsi yamagetsi amitundu yambiri. Kusintha kwa katundu wa mphamvu kudzachititsa kusintha kwa mphamvu. Pamene katundu akuwonjezeka, kutulutsa kumachepa. M'malo mwake, katunduyo akachepa, zotsatira zake zimawonjezeka. Kusintha kwazomwe zimachitika chifukwa cha kusintha kwamphamvu kwamphamvu ndikochepa, ndipo index yayikulu ndi 3% - 5%. Ndilolozera wofunikira kuyeza kukhazikika kwamagetsi kwa adapter yamagetsi yama tchanelo ambiri.
Ntchito yofanana
Pofuna kupititsa patsogolo mphamvu yotulutsa ndi mphamvu, ma adapter amphamvu angapo angagwiritsidwe ntchito mofanana. Panthawi yogwira ntchito yofananira, mphamvu yotulutsa mphamvu ya adaputala iliyonse yamagetsi iyenera kukhala yofanana (mphamvu yawo yotulutsa imaloledwa kukhala yosiyana), ndipo njira yogawana pano (yomwe imatchedwanso njira yogawana pano) imatengedwa kuti iwonetsetse kuti zotulukapo za aliyense. Adaputala yamagetsi imagawidwa molingana ndi gawo lomwe latchulidwa.
Electromagnetic interference filter
Electromagnetic interference filter, yomwe imadziwikanso kuti "EMI filter", ndi chipangizo chamagetsi chomwe chimagwiritsidwa ntchito kupondereza kusokonezedwa ndi ma elekitiroma, makamaka phokoso lamagetsi kapena chingwe chowongolera. Ndi chipangizo chosefera chomwe chimatha kupondereza bwino phokoso la gridi yamagetsi ndikuwongolera luso loletsa kusokoneza kwa zida zamagetsi ndi kudalirika kwadongosolo. Electromagnetic interference filter ndi ya bidirectional RF fyuluta. Kumbali imodzi, ikuyenera kusefa kusokoneza kwamagetsi kwakunja komwe kumayambitsidwa kuchokera ku gridi yamagetsi ya AC;
Kumbali inayi, imathanso kupewa kusokoneza kwa phokoso lakunja kwa zida zake, kuti zisakhudze magwiridwe antchito a zida zina zamagetsi pamalo omwewo amagetsi. Fyuluta ya EMI imatha kupondereza kusokoneza kwamitundu yonse komanso kusokoneza wamba. Fyuluta ya EMI idzalumikizidwa ndi AC yomwe ikubwera kumapeto kwa adaputala yamagetsi.
radiator
Chipangizo chochepetsera kutentha chomwe chimagwiritsidwa ntchito kuchepetsa kutentha kwa ntchito za zida za semiconductor, zomwe zingapewe kutentha kwapakatikati kwa chubu kupitirira kutentha kwapakatikati chifukwa cha kutentha kwapang'onopang'ono, kotero kuti adaputala yamagetsi ikhoza kutetezedwa ku kutentha kwambiri. Njira yochepetsera kutentha imachokera pachimake cha chubu, mbale yaying'ono yotenthetsera kutentha (kapena chipolopolo cha chubu)> radiator → pomaliza mpaka mpweya wozungulira. Pali mitundu yambiri ya ma radiator, monga mtundu wambale, mtundu wa bolodi (PCB), mtundu wa nthiti, mtundu wa interdigital ndi zina zotero. Rediyeta iyenera kusungidwa kutali ndi magwero otentha monga thiransifoma pafupipafupi ndi chubu chosinthira magetsi momwe kungathekere.
Electronic katundu
Njira yogwiritsira ntchito ikukhudzana ndi chipangizo chamagetsi chomwe chimagwiritsidwa ntchito makamaka ngati mphamvu yotulutsa mphamvu. Katundu wamagetsi amatha kusinthidwa mwamphamvu pansi paulamuliro wa kompyuta. Electronic load ndi chipangizo chomwe chimagwiritsa ntchito mphamvu yamagetsi poyang'anira mphamvu yamkati (MOSFET) kapena conduction flux (duty cycle) ya transistor ndi kudalira mphamvu zowonongeka za chubu lamagetsi.
mphamvu
Mphamvu yamagetsi ikugwirizana ndi chikhalidwe cha katundu wa dera. Zimayimira chiŵerengero cha mphamvu yogwira ntchito ku mphamvu yowonekera.
mphamvu factor kukonza
PFC mwachidule. Tanthauzo laukadaulo waukadaulo wowongolera mphamvu ndi: mphamvu yamagetsi (PF) ndi chiŵerengero cha mphamvu yogwira P mpaka mphamvu zowonekera s. Ntchito yake ndikusunga kulowetsa kwa AC pakali pano ndi mphamvu yamagetsi ya AC, kusefa ma harmonics apano, ndikuwonjezera mphamvu ya zida pamtengo wodziwikiratu pafupi ndi 1.
Kuwongolera kwamphamvu kwamphamvu
Kuwongolera mphamvu kwa Passive Power factor kumatchedwa PPFC (yomwe imadziwikanso kuti passive PFC). Imagwiritsa ntchito ma passive component inductance pokonza mphamvu. Dera lake ndi losavuta komanso lotsika mtengo, koma ndi losavuta kutulutsa phokoso ndipo limangowonjezera mphamvu mpaka pafupifupi 80%. Zazikulu} zabwino zowongolera mphamvu zopanda mphamvu ndizo: kuphweka, mtengo wotsika, kudalirika ndi EMI yaying'ono. Zoyipa zake ndi: kukula kwakukulu ndi kulemera, zovuta kupeza mphamvu yayikulu, ndipo magwiridwe antchito amagwirizana ndi ma frequency, katundu ndi voteji.
Kuwongolera kwamphamvu kwamphamvu
Kuwongolera kwamphamvu kwamphamvu kumatchedwa APFC (yomwe imadziwikanso kuti yogwira PFC). Kuwongolera kwamphamvu kwamphamvu kumatanthawuza kukulitsa mphamvu yolowera kudzera mugawo logwira ntchito (gawo logwira), ndikuwongolera chida chosinthira kuti ma waveform apano atsatire mawonekedwe amagetsi olowera. Poyerekeza ndi passive power factor correction circuit (passive circuit), kuwonjezera inductance ndi capacitance ndizovuta kwambiri, ndipo kusintha kwa mphamvu kumakhala bwino, koma mtengo wake ndi wapamwamba ndipo kudalirika kudzachepetsedwa. Chigawo chosinthira mphamvu chimawonjezedwa pakati pa mlatho wobwezeretsanso ndi chosinthira chotulutsa chotulutsa kuti chiwongolere zomwe zikulowa mu sine wave ndi gawo lofanana ndi voteji yolowera ndipo palibe kupotoza, ndipo mphamvu yamagetsi imatha kufika 0.90 ~ 0.99.
Nthawi yotumiza: Apr-12-2022
