I-PWM (I-Pulse Width Modulation) bubuchule obusetyenziswa ngokubanzi ukulawula isantya kunye namandla okungcangcazela kwe-DC okanye iimotor zokungcangcazela. Xa isignali ye-PWM ephezulu isetyenziswa kwimoto, i-voltage ephakathi eqhuba i-motor ngulo mqondiso. Oku kuvumela ulawulo oluchanekileyo lwesantya semoto kunye namandla okungcangcazela. Sisixhobo esibalulekileyo kwiinkqubo ezahlukeneyo ezibandakanya iirobhothi, oomatshini boshishino, kunye nombane wabathengi.
Qonda iziseko zeempawu zePWM
Ukusebenzisa i-PWM ukulawula isantya kunye namandla okungcangcazela kwemoto, kubalulekile ukuqonda iziseko zeempawu ze-PWM. Isignali ye-PWM iqulethe uchungechunge lwee-pulses, apho ububanzi be-pulse (ebizwa ngokuba ngumjikelezo womsebenzi) bumisela umbane ophakathi osetyenziswe kwi-motor. Ngokulungelelanisa umjikelezo womsebenzi wesignali ye-PWM, i-voltage esebenzayo kunye nekhoyo ngoku enikezelwa kwi-motor inokulawulwa, ngaloo ndlela ilungelelanisa isantya kunye namandla okungcangcazela kwemoto.
Xa usebenzisa i-PWM kwi-aingqekembe yemoto yokungcangcazela, i-frequency yesignali ye-PWM idlala indima ebalulekileyo ekunqumeni ukusebenza kwemoto. Iifrikhwensi eziphakamileyo ze-PWM zivumela ukuba kube lula, ulawulo oluchanekileyo ngakumbi lwesantya semoto kunye namandla okungcangcazela. Ngaphaya koko, i-frequency ye-PWM kufuneka ikhethwe ngononophelo ukunqanda naziphi na iziphumo ezingafunekiyo njengengxolo evakalayo okanye iresonance yomatshini kwimoto.
Umzekelo wemoto eqhutywa luphawu lwePWM
Khetha isilawuli esichanekileyo sePWM okanye isilawuli esincinci
Ukusebenzisa ngokufanelekileyo i-PWM ukulawula isantya semoto ye-vibration kunye ne-vibration force, umlawuli ofanelekileyo we-PWM okanye i-microcontroller kufuneka ikhethwe inokuvelisa isignali ye-PWM efunekayo. Umlawuli kufuneka akwazi ukuvelisa i-high-frequency PWM signal kunye nomjikelezo womsebenzi ohlengahlengiswayo. Ngoko ke inokuhlangabezana neemfuno ezithile zesicelo.
Ukongeza, kubalulekile ukuqwalaselainjini yokungcangcazela encinciUbalulo kunye neempawu zokusebenza xa usebenzisa ulawulo lwePWM. Izinto ezinje nge-voltage, okwangoku, oomatshini, kunye neempawu zombane zemoto kufuneka ziqwalaselwe ukuqinisekisa ukusebenza ngokukhuselekileyo nangokufanelekileyo.
Imijikelo yomsebenzi we-PWM
Isishwankathelo
I-PWM sisixhobo esinamandla sokulawula isantya kunye namandla okungcangcazela kweDC vibration motor. Ngokuqonda imigaqo yeempawu ze-PWM kunye nokukhetha isilawuli esifanelekileyo se-PWM, ulawulo oluchanekileyo noluthembekileyo lokusebenza kwemoto lunokufezekiswa. Bubuchwephesha obuyimfuneko kulawulo lweemoto kunye nokusetyenziswa kokungcangcazela.
Thetha neeNgcali zakho zeNkokeli
Sikunceda ukuba uphephe imigibe yokuhambisa umgangatho kwaye uxabise imfuno yemoto yakho encinci ye-brushless, ngexesha kunye nohlahlo lwabiwo-mali.
Ixesha lokuposa: Apr-20-2024
