Umgomo we PWM sekulingisa (PWM) beyaziwa isikhathi eside, kodwa isicelo izikimu ezahlukene sekuyinto muva. Kubalulekile amadivayisi amaningi asetshenziswa emikhakheni ehlukahlukene: uninterruptible ugesi obuhlukahlukene, imvamisa converters, voltage imigomo, lamanje noma isivinini laboratory imvamisa converters, njll It is kahle kungase kutholakale embonini yezimoto ekukhiqizeni njengelungu wokulawula ukusebenza kokubili isevisi kanye izinjini ezinamandla. Isilawuli PWM uye wasebenza kahle kwebhizinisi lapho uqhuba ezifundeni ezihlukahlukene.
Ake sihlole ezinye zezibonelo ezisebenzisekayo ezibonisa indlela ukulungisa ijubane motor ngu kagesi, okuhlanganisa isilawuli PWM. Ake sithi kudingeka ushintshe ijubane motor emotweni yakho elingaphakathi bafudumale system. Enough ngcono ewusizo, akunjalo? Ikakhulu off-inkathi, lapho umuntu ofuna ukulawula izinga lokushisa ingaphakathi kancane kancane. DC motor efakwe kulesi simiso, kwenza kube nokwenzeka ukuba ushintshe umfutho, kodwa kubalulekile ukuba nomthelela EMF yayo. Ngosizo izakhi yesimanje electronic ukuthi komsebenzi lula ukufeza. Ngenxa yale njongo, circuit ugesi yenjini uphendulela FET amandla. Cinisekisa, wena ukuyichaza ke, PWM ukulawula isivinini. Ngalo, ungakwazi ukushintsha isivinini imoto in ezahlukahlukene.
Kanjani ukulawula PWM wesifunda e -AC? Kulokhu, isilawuli kuyiwa wesifunda, kodwa isimiso ukusebenza ayiguquki. Njengoba isibonelo, cabanga ukusebenza kwe-imvamisa Converter. Amadivayisi anjalo ngokuvamile asetshenziswa ekukhiqizeni izinto ngoba olawula isivinini injini. Ukuqala voltage ezintathu okhombisa is bulungiswe ngokusebenzisa ibhuloho Larionov futhi ngokwengxenye eshelelayo. Futhi kuphela ke fed kuya ezinamandla inhlangano kwengqondo okuguquguqukayo noma module ezisekelwe ensimini-umphumela transistors. Izilawuli abakho voltage PWM isilawuli, eqoqwe ngesisekelo the microcontroller. Yena edonsa pulses control, ububanzi nobuningi ezidingekayo ukuze kwakhiwe ethile isivinini imoto.
Ngeshwa, ngaphezu ukusebenza okuhle izicelo lapho ukulawula PWM ngokuvamile bavele ukuphazamiseka oqinile circuit amandla. Lokhu kungenxa yokuba khona inductance ku Windings izinjini kagesi emgqeni uqobo. Nobunzima lokhu ezihlukahlukene schematics: ukubeka yokwanda ezinamandla e-AC izifunda noma yiphani ngesihle-ezazintweza diode parallel motor e DC ugesi.
izifunda okunjalo kuhluke nokwethenjelwa sezingeni eliphezulu ukusebenza futhi ezintsha emkhakheni ezihlukahlukene isilawuli amandla kagesi. Ziyakwazi compact ngokwanele futhi kahle ephethwe. ukulungiswa kwakamuva yalezi amadivaysi kabanzi lisetshenziswe ukukhiqizwa.