I-PWM (i-Pulse Width Modulation) yindlela esetyenziswa kakhulu ukulawula isantya kunye namandla okungcangcazela kwee-DC okanye ii-vibration motors. Xa isignali ye-PWM ephindaphindayo isetyenziswa kwi-motor, i-voltage ephakathi eqhuba i-motor yileyo signal. Oku kuvumela ulawulo oluchanekileyo lwesantya se-motor kunye namandla okungcangcazela. Sisixhobo esibalulekileyo kwiintlobo ngeentlobo zezicelo kuquka iirobhothi, oomatshini bemizi-mveliso, kunye ne-electronics zabathengi.
Qonda iziseko zeempawu ze-PWM
Ukuze usebenzise i-PWM ukulawula isantya kunye namandla okungcangcazela kwemoto, kubalulekile ukuqonda iziseko zeempawu ze-PWM. Isignali ye-PWM inee-pulses ezininzi, apho ububanzi be-pulse (obubizwa ngokuba yi-duty cycle) bumisela i-voltage ephakathi esetyenziswa kwimoto. Ngokulungisa umjikelo we-duty wesignali ye-PWM, i-voltage esebenzayo kunye nomsinga othunyelwa kwimoto unokulawulwa, ngaloo ndlela ulungisa isantya kunye namandla okungcangcazela kwemoto.
Xa usebenzisa i-PWM kwiimoto yokungcangcazela yengqekembe, imvamisa yesignali ye-PWM idlala indima ebalulekileyo ekumiseleni ukusebenza kwemoto. Iimvamisa ze-PWM eziphezulu zivumela ulawulo oluthambileyo noluchanekileyo lwesantya semoto kunye namandla okungcangcazela. Ngaphezu koko, imvamisa ye-PWM kufuneka ikhethwe ngononophelo ukuze kuthintelwe naziphi na iziphumo ezingathandekiyo ezifana nengxolo evakalayo okanye isandi somatshini kwimoto.
Umzekelo wemoto eqhutywa sisignali yePWM
Khetha isilawuli se-PWM esifanelekileyo okanye i-microcontroller
Ukuze i-PWM isebenzise ngempumelelo ukulawula isantya se-vibration motor kunye namandla okungcangcazela, kufuneka kukhethwe i-PWM controller okanye i-microcontroller efanelekileyo enokuvelisa i-PWM signal efunekayo. I-controller kufuneka ikwazi ukuvelisa i-PWM signal ephindaphindayo enomjikelo womsebenzi ohlengahlengiswayo. Ngoko ke inokuhlangabezana neemfuno ezithile zesicelo.
Ukongeza, kubalulekile ukuqwalaselainjini encinci yokungcangcazelaiinkcukacha kunye neempawu zokusebenza xa kusetyenziswa ulawulo lwe-PWM. Izinto ezifana ne-voltage, i-current, i-mechanical, kunye neempawu zombane zemoto kufuneka ziqwalaselwe ukuqinisekisa ukusebenza okukhuselekileyo nokusebenzayo.
Imijikelo yomsebenzi we-PWM
Isishwankathelo
I-PWM sisixhobo esinamandla sokulawula isantya kunye namandla okungcangcazela kwe-aImoto yokungcangcazela yeDCNgokuqonda imigaqo yeempawu zePWM nokukhetha umlawuli wePWM ofanelekileyo, ulawulo oluchanekileyo noluthembekileyo lokusebenza kwemoto lunokufezekiswa. Bubuchwepheshe obuyimfuneko ekulawuleni iimoto nasekusebenziseni ukungcangcazela.
Nxibelelana neengcali zakho zeeNkokeli
Sikunceda uphephe imigibe yokubonelela ngomgangatho kwaye uxabise iimfuno zakho ze-micro brushless motor, ngexesha elifanelekileyo kwaye kuhlahlo lwabiwo-mali.
Ixesha leposi: Epreli-20-2024
