Chipinda chozungulira pakati pa pompo yapakati pa waya, kapena pakati pa waya ziwiri (ngati palibe pompo yapakati).
Ngodya yozungulira ya mota yopanda katundu, pomwe magawo awiri oyandikana nawo akusangalala
Mtengo wamota ya stepperkuyenda mosalekeza.
Mphamvu yayikulu kwambiri yomwe shaft ingathe kupirira popanda kuzungulira kosalekeza, pomwe mawaya a lead amachotsedwa.
Mphamvu yayikulu kwambiri yokhazikika yomwe shaft yamota ya stepperMphamvu yamagetsi yolimbikitsidwa ndi mphamvu yamagetsi yovomerezeka imatha kupirira popanda kuzungulira kosalekeza.
Kuthamanga kwakukulu komwe injini ya stepper yothamanga yokhala ndi katundu winawake imatha kuyambitsa ndi komwe sikungatheke popanda kusokoneza ma pulse.
Kuthamanga kwa kugunda kwa mtima komwe mota ya stepper yothamanga yomwe ikuyendetsa katundu winawake ingafikire sikungalepheretse kusinthasintha kwa kugunda kwa mtima.
Mphamvu yayikulu kwambiri yomwe injini ya excited stepper ingayiyambe pa kugunda kwa mtima kwinakwake ndipo siingalepheretse kusinthasintha kwa ma frequency.
Mphamvu yayikulu kwambiri yomwe injini ya stepper imayendetsa motsatira malangizo ndi kugunda kwa mtima kwina kumatha kupirira ndipo sikulepheretsa kusinthasintha kwa maginito.
Ma pulse rate omwe injini ya stepper yokhala ndi katundu wolembedwa ndi dokotala imatha kuyambitsa, kuyimitsa kapena kulemekeza, ndipo sasunga desynchronizing.
Mphamvu yamagetsi imayesedwa pa gawo lililonse, ponyamula shaft ya injini pa liwiro losasintha la 1000 RPM.
Kusiyana pakati pa ngodya zophatikizana zenizeni ndi zenizeni (malo).
Kusiyana pakati pa ngodya yeniyeni ndi yeniyeni ya sitepe imodzi.
Kusiyana pakati pa malo oimika magalimoto a CW ndi CCW.
Chopper constant current drive circuit ndi mtundu wa drive mode yokhala ndi magwiridwe antchito abwino komanso kugwiritsa ntchito kwambiri pakadali pano. Lingaliro loyambira ndilakuti current rating ya conductive phase winding imasungidwa mosasamala kanthu kutimota ya stepperIli mu mkhalidwe wotsekedwa kapena ikuyenda pafupipafupi kapena motsika kwambiri. Chithunzi cha Bellow ndi chithunzi cha chopper constant current drive circuit, momwe gawo limodzi lokha la drive drive likuwonetsedwa, ndipo gawo lina ndi lofanana. Kuzimitsidwa kwa phase winding kumayendetsedwa pamodzi ndi switching tube VT1 ndi VT2. Emitter ya VT2 imalumikizidwa ndi sampling resistance R, ndipo kutsika kwa kuthamanga kwa resistance kumafanana ndi current I ya phase winding.
Pamene control pulse UI ili pa voltage yapamwamba, ma switch tube onse a VT1 ndi VT2 amayatsidwa, ndipo mphamvu ya dc imapereka kuzunguza. Chifukwa cha mphamvu ya kuzunguza, voltage pa sampling resistance R imawonjezeka pang'onopang'ono. Pamene mtengo wa voltage yomwe yaperekedwa Ua wapitirira, comparator imatulutsa mlingo wotsika, kotero kuti chipata chimatulutsanso mlingo wotsika. VT1 imadulidwa ndipo mphamvu ya dc imadulidwa. Pamene voltage pa sampling resistance R ili yochepa kuposa voltage yomwe yaperekedwa Ua, comparator imatulutsa mlingo wapamwamba, ndipo chipata chimatulutsanso mlingo wapamwamba, VT1 imayatsidwanso, ndipo mphamvu ya dc imayamba kupereka mphamvu ku kuzunguza kachiwiri. Mobwerezabwereza, mphamvu yamagetsi mu phase winding imakhazikika pamtengo wotsimikiziridwa ndi voltage yomwe yaperekedwa Ua.
Pogwiritsa ntchito chowongolera chamagetsi chokhazikika, magetsi amafanana ndi magetsi oyesedwa a mota ndipo amakhalabe okhazikika. Magalimoto amagetsi okhazikika ndi osavuta komanso otsika mtengo kuposa ma drive amagetsi okhazikika, omwe amawongolera magetsi operekera kuti atsimikizire kuti magetsi okhazikika amaperekedwa ku mota. Pamagetsi okhazikika, kukana kwa dera loyendetsa kudzachepetsa mphamvu yayikulu, ndipo kulowetsedwa kwa mota kudzachepetsa liwiro lomwe magetsi akukwera. Pa liwiro lotsika, kukana ndiye chinthu choletsa kupanga magetsi (ndi torque). Mota ili ndi mphamvu yabwino komanso kuwongolera malo ndipo imayenda bwino. Komabe, pamene liwiro la mota likuwonjezeka, kulowetsedwa ndi nthawi yokwera kwamagetsi zimayamba kuletsa magetsi kufika pamtengo wake womwe akufuna. Kuphatikiza apo, pamene liwiro la mota likuwonjezeka, EMF yakumbuyo imawonjezekanso, zomwe zikutanthauza kuti magetsi ambiri amagwiritsidwa ntchito kokha kuthana ndi magetsi akumbuyo a EMF. Chifukwa chake, vuto lalikulu la kuyendetsa magetsi okhazikika ndi kuchepa kwa mphamvu mwachangu komwe kumapangidwa pa liwiro lotsika la mota yoyendera.
Dongosolo loyendetsera galimoto ya bipolar stepper likuwonetsedwa pa Chithunzi 2. Limagwiritsa ntchito ma transistors asanu ndi atatu kuyendetsa magawo awiri a magawo. Dongosolo loyendetsa galimoto ya bipolar limatha kuyendetsa ma mota a waya anayi kapena asanu ndi limodzi nthawi imodzi. Ngakhale kuti mota ya waya zinayi ingagwiritse ntchito dera loyendetsa galimoto ya bipolar yokha, lingathe kuchepetsa kwambiri mtengo wogwiritsira ntchito popanga zinthu zambiri. Chiwerengero cha ma transistors mu dera loyendetsa galimoto ya bipolar stepping ndi kawiri kuposa dera loyendetsa galimoto ya unipolar. Ma transistors anayi otsika nthawi zambiri amayendetsedwa mwachindunji ndi microcontroller, ndipo transistor yapamwamba imafuna dera loyendetsa galimoto lapamwamba lokwera mtengo kwambiri. Transistor ya dera loyendetsa galimoto ya bipolar imangofunika kunyamula magetsi a mota, kotero sifunikira dera lotsekereza ngati dera loyendetsa galimoto ya unipolar.
Ma circuit oyendetsa omwe amagwiritsidwa ntchito kwambiri ndi ma stepping motors. Ma circuit oyendetsa omwe ali ndi polar imodzi amagwiritsa ntchito ma transistors anayi kuyendetsa magawo awiri a motor stepping, ndipo kapangidwe ka stator winding kamaphatikizapo ma coil awiri okhala ndi ma intermediate tap (intermediate tap ya AC coil O, BD coil) Ma intermediate tap ndi m), ndipo mota yonse ili ndi mizere isanu ndi umodzi yokhala ndi kulumikizana kwakunja. Mbali ya AC singathe kupereka mphamvu (BD ending), apo ayi maginito flux opangidwa ndi ma coil awiri pa magnetic pole amaletsana, coil yokha ndi yomwe imapangidwa. Chifukwa kwenikweni ndi magawo awiri okha (AC windings ndi gawo limodzi, BD winding ndi gawo limodzi), mawu olondola ayenera kukhala mawaya asanu ndi limodzi (ndithudi, tsopano pali mizere isanu, yolumikizidwa ndi mizere iwiri ya anthu onse).
Gawo limodzi, mphamvu yoyatsira magetsi imangozungulira gawo limodzi lokha, kusinthasintha motsatizana kwa mphamvu ya gawo ndikupanga ngodya yozungulira (makina osiyanasiyana amagetsi, madigiri 18 15 7.5 5, mota wosakaniza madigiri 1.8 ndi madigiri 0.9, madigiri 1.8 otsatirawa atchulidwa ku njira iyi yosangalatsira, ndipo kuyankha kwa ngodya yozungulira pamene kugunda kulikonse kufika kumagwedezeka. Ngati ma frequency ndi okwera kwambiri, n'zosavuta kupanga nthawi yakale.
Kusangalatsa kwa magawo awiri: mphamvu yoyendera nthawi imodzi ya magawo awiri, imagwiritsanso ntchito njira yosinthira mafunde a gawo motsatizana, ngodya ya gawo lachiwiri ndi madigiri 1.8, mphamvu yonse ya magulu awiriwa ndi nthawi ziwiri, ndipo kuchuluka kwa ma frequency oyambira kumawonjezeka, kungapezeke kuthamanga kwambiri, ntchito yowonjezera, komanso yochulukirapo.
1-2 Kutulutsa Mphamvu: Iyi ndi njira yosinthira kutulutsa mphamvu pang'onopang'ono, kutulutsa mphamvu kwa magawo awiri, kuyambitsa mphamvu, ziwiri zilizonse zimasinthasintha nthawi zonse, kotero ngodya ya sitepe ndi madigiri 0.9, kutulutsa mphamvu kwakukulu ndi kwakukulu, ndipo kuchita bwino kwambiri ndi kwabwino. Ma frequency oyambira apamwamba nawonso ndi okwera. Amadziwika kuti half-way excitation drive
Nthawi yotumizira: Julayi-06-2023