Inxalenye ejikajikayo phakathi kwempompo yocingo esembindini, okanye phakathi kweengcingo ezimbini (xa ingekho itephu embindini).
I-engile ejikelezisiweyo yemoto engenamthwalo, ngelixa izigaba ezimbini ezingabamelwane zivuya
Umyinge weiimoto stepperintshukumo eqhubekayo yokunyathela.
I-torque ephezulu enokuthi i-shaft ikwazi ukumelana nayo ngaphandle kokujikeleza okuqhubekayo, ngelixa iingcingo ezikhokelayo zixhunyiwe.
Ubuninzi betorque engatshintshiyo ukuba ishaft ye ai-motor ye-stepperimincili nge rated okwangoku unokumelana ngaphandle ujikelezo oluqhubekayo.
Amazinga aphezulu e-pulse ukuba i-motor stepper evuyayo enomthwalo othile inokuqalisa kwaye akukho desynchronizing.
Awona mazinga aphezulu e-pulse apho i-stepper motor echulumancisayo eqhuba umthwalo othile inokufikelela kuwo kwaye ingagcini i-desynchronizing.
Elona torque iphezulu enokuthi i-stepper motor iqalise ngesantya esithile sokubetha kwentliziyo kwaye igcine i-desynchronizing.
Ubuninzi betorque eqhutywa yi-stepper motor kwiimeko ezimiselweyo kunye nezinga elithile le-pulse inokumelana kwaye igcine i-desynchronizing.
Uluhlu lwesantya se-pulse apho i-stepper motor enomthwalo omiselweyo inokuqalisa, ime okanye ihlehlise, kwaye ingagcini i-desynchronizing.
Amandla ombane aphezulu alinganiswa kwinqanaba elithile, xa ethwele ishafti yemoto ngesantya esingaguqukiyo se-1000 RPM.
Umahluko phakathi kwethiyori kunye nee-engile ezidibeneyo (izikhundla).
Umahluko phakathi kwethiyori kunye nenqanaba lokwenyani leengile.
Umahluko phakathi kweendawo zokumisa zeCW kunye neCCW.
I-Chopper eqhubekayo yesekethe ye-drive yangoku luhlobo lwemowudi yokuqhuba kunye nokusebenza okungcono kunye nokusetyenziswa ngakumbi ngoku. Ingcamango esisiseko kukuba ireyithingi yangoku ye-conductive phase winding igcinwa kungakhathaliseki ukuba i-i-motor ye-stepperikwimo etshixiweyo okanye ibaleka ngamaza aphantsi okanye aphezulu. I-BellowFigure ngumzobo oqingqiweyo wesekethe ye-chopper eqhubekayo yangoku, apho isiphaluka esinye sesigaba sokuqhuba siboniswa, kunye nesinye isigaba esifanayo. I-on-off of the phase winding ilawulwa ngokubambisana nge-tube yokutshintsha i-VT1 kunye ne-VT2. I-emitter ye-VT2 idibaniswe ne-sampling resistance R, kwaye ukuhla koxinzelelo kwi-resistance kuhambelana ne-I yangoku yesigaba somoya.
Xa i-UI yokulawula i-pulse ikwi-voltage ephezulu, zombini i-VT1 kunye ne-VT2 iibhubhu zokutshintsha zivuliwe, kwaye unikezelo lwamandla e-dc lunikezela ukujika. Ngenxa yempembelelo ye-inductance ye-winding, i-voltage kwi-sampling resistance resistance R iyanda ngokuthe ngcembe. Xa ixabiso le-voltage enikeziweyo i-Ua ligqithiswa, uthelekisi uvelisa umgangatho ophantsi, ukwenzela ukuba isango liphinde liphume kwinqanaba eliphantsi. I-VT1 ivaliwe kwaye unikezelo lombane lwe-dc lucinyiwe. Xa i-voltage ekuxhathiseni isampuli R ingaphantsi kwe-voltage enikiweyo ye-Ua, imveliso yokuthelekisa inqanaba eliphezulu, kunye nesango kunye nenqanaba eliphezulu eliphumayo, i-VT1 ilayishwa kwakhona, kwaye umbane we-dc uqalisa ukubonelela umbane kwi-winging kwakhona. Ngokuphindaphindiweyo, i-current in the phase winding iqiniswe kwixabiso elinqunywe yi-voltage enikeziweyo i-Ua.
Xa usebenzisa i-voltage drive rhoqo, amandla ombane ombane ahambelana ne-voltage elinganisiweyo yemoto kwaye ihlala ingatshintshi. Ukuqhuba kwamandla ombane rhoqo kulula kwaye kunexabiso eliphantsi kuneedrive zangoku eziqhubekayo, ezilawula umbane wokubonelela ukuqinisekisa ukuba umsinga osisigxina okhoyo unikezelwa kwi-motor. Ukuqhuba i-voltage rhoqo, ukuchasana kwesekethe ye-drive kuya kunciphisa ubuninzi bangoku, kwaye i-inductance ye-motor iya kunciphisa isantya apho ukunyuka kwangoku. Ngezantya eziphantsi, ukuchasana kusisithintelo kwisizukulwana sangoku (kunye netorque). I-motor inetorque elungileyo kunye nolawulo lokubeka indawo kwaye iqhuba kakuhle. Nangona kunjalo, njengoko isantya semoto sinyuka, i-inductance kunye nexesha lokunyuka kwangoku liqala ukukhusela okwangoku ukuba ufikelele kwixabiso elijoliswe kuyo. Ngaphezu koko, njengoko isantya semoto sikhula, i-EMF yangasemva nayo iyanda, nto leyo ethetha ukuba amandla ombane amaninzi asetyenziswa kuphela ukoyisa amandla ombane we-EMF angasemva. Ke ngoko, eyona nto ingalunganga yokuqhuba i-voltage rhoqo kukuhla ngokukhawuleza kwetorque eveliswe ngesantya esisezantsi se-stepper motor.
Isekethe yokuqhuba i-bipolar stepper motor iboniswe kwi-Figure 2. Isebenzisa ii-transistors ezisibhozo ukuqhuba iiseti ezimbini zezigaba. Isiphaluka se-bipolar drive sinokuqhuba ii-motor ezine-wire okanye ezintandathu ze-stepper ngexesha elinye. Nangona i-motor eneentambo ezine inokusebenzisa isekethe ye-bipolar drive kuphela, inokunciphisa kakhulu iindleko zezicelo zemveliso yobuninzi. Inani lee-transistors kwisekethe ye-bipolar stepping motor drive liphindwe kabini kunesekethe ye-unipolar drive. Ii-transistors ezine ezisezantsi zihlala ziqhutywa ngokuthe ngqo yi-microcontroller, kwaye i-transistor ephezulu idinga iindleko eziphezulu zesekethe ye-drive drive. I-transistor yesekethe ye-bipolar drive idinga kuphela ukuthwala i-motor voltage, ngoko ayifuni isekethe ye-clamp njengesekethe ye-unipolar drive.
I-Unipolar kunye ne-bipolar zezona zixhaphakileyo iisekethe zokuqhuba ezisetyenziswa ziinjini zokunyathela. Isiphaluka esisodwa sokuqhuba i-polar sisebenzisa ii-transistors ezine ukuqhuba iiseti ezimbini zezigaba ze-motor stepping, kunye ne-motor stator winding structure ibandakanya iiseti ezimbini zeekhoyili ezinombhobho ophakathi (umpompo ophakathi we-AC coil O, i-BD coil) Umbhobho ophakathi ngu-m), kwaye yonke i-motor inemizila emithandathu edibeneyo ngaphandle. Icala le-AC alikwazi ukunika amandla (ukuphela kwe-BD), ngaphandle koko i-flux yamagnetic eyenziwa yi-coil ezimbini kwi-pole magnetic ikhansela enye kwenye, kuphela ukusetyenziswa kobhedu kwekhoyili kuveliswa. Ngenxa yokuba eneneni izigaba ezibini kuphela (i-AC windings yisigaba esinye, i-BD i-winding yisigaba esinye), inkcazo echanekileyo kufuneka ibe yinqanaba ezimbini ze-wireless wire (ngokuqinisekileyo, ngoku kukho imigca emihlanu, idibaniswe kwimigca emibini yoluntu) Ukunyathela i-motor.
Isigaba esinye, amandla-on ukujikoza kuphela isigaba esinye, ngokulandelelanayo ukutshintshela isigaba sangoku ukuvelisa i-engile inyathelo lokujikeleza (oomatshini ezahlukeneyo zombane, 18 degrees 15 7.5 5, motor exutyiweyo 1.8 degrees kunye 0.9 degrees, le ilandelayo 1.8 izidanga kubhekiselwa kule ndlela excitation, kunye nempendulo yojikelezo olujikelezayo, i-angle ejikelezayo ifika kakhulu. kulula ukuvelisa iphelelwe lixesha.
I-excitation yesigaba ezibini: inqanaba lesibini lokujikeleza kwangoku, liphinda lisebenzise indlela yokutshintsha imisinga yesigaba ngokulandelelana, i-angle yenqanaba lesibini kwinqanaba le-degree degree yi-1.8 degrees, i-current yamacandelo amabini ngamaxesha angama-2, kunye nokunyuka okuphezulu kokuqala, kunokufumaneka Isantya esiphezulu, esongezelelweyo, ukusebenza ngokugqithisileyo.
I-1-2 I-Excitation: Le yindlela yokwenza ngokuhlukileyo i-excitation ye-phase-in excitation, i-excitation yesigaba ezibini, ukuqala ngoku, nganye ezimbini zisoloko zitshintsha, ngoko i-angle yesinyathelo yi-0.9 degrees, i-excitation current inkulu, kunye nokusebenza ngokugqithisileyo kulungile. Ubuninzi bokuqala bokuqala buphezulu. Ngokuqhelekileyo eyaziwa njenge-half-way excitation drive
Ixesha lokuposa: Jul-06-2023