Ib feem winding ntawm xaim chaw kais, lossis nruab nrab ntawm ob lub xaim (thaum tsis muaj chaw kais).
Lub kaum sab xis ntawm qhov tsis muaj lub cev muaj zog, thaum ob theem nyob sib ze zoo siab heev
Tus nqi ntawm covstepper lub cev muaj zognruam stepping txav.
Qhov siab tshaj plaws torque uas cov ncej tuaj yeem tiv taus yam tsis muaj kev sib hloov tas mus li, thaum cov hlau lead raug txiav.
Qhov siab tshaj plaws torque uas tus ncej ntawm astepper lub cev muaj zogzoo siab nrog ntsuas tam sim no tuaj yeem tiv taus yam tsis muaj kev sib hloov tas mus li.
Qhov siab tshaj plaws pulse tus nqi uas tus zoo siab stepper lub cev muaj zog nrog ib tug tej yam load yuav pib thiab tsis muaj desynchronizing.
Qhov siab tshaj plaws pulse tus nqi uas tus zoo siab stepper lub cev muaj zog tsav ib qho kev thauj khoom tuaj yeem ncav cuag thiab tsis muaj desynchronizing.
Qhov siab tshaj plaws torque uas tus zoo siab stepper lub cev muaj zog tuaj yeem pib ntawm qee qhov mem tes thiab tsis txhob desynchronizing.
Qhov siab tshaj plaws torque uas lub stepper lub cev muaj zog tsav ntawm cov ntawv sau npe thiab ib qho mem tes tus nqi tuaj yeem tiv taus thiab tsis muaj desynchronizing.
Cov mem tes npaum li cas uas lub stepper lub cev muaj zog nrog prescriptive load tuaj yeem pib, nres lossis reveres, thiab tsis txhob desynchronizing.
Lub ncov voltage ntsuas hla ib theem, thaum nqa lub cev muaj zog ncej ntawm qhov ceev ntawm 1000 RPM.
Qhov sib txawv ntawm qhov theoretical thiab qhov tseeb sib xyaw cov ces kaum (txoj hauj lwm).
Qhov sib txawv ntawm qhov theoretical thiab qhov tseeb ib kauj ruam kaum.
Qhov sib txawv ntawm qhov chaw nres tsheb rau CW thiab CCW.
Chopper tas li tam sim no tsav Circuit Court yog hom tsav nrog kev ua tau zoo dua thiab siv ntau dua tam sim no. Lub tswv yim tseem ceeb yog tias qhov ntsuas tam sim no ntawm cov theem conductive winding yog tswj tsis hais seb qhov twgstepper lub cev muaj zogyog nyob rau hauv lub xeev xauv los yog khiav nyob rau hauv tsawg los yog siab zaus. BellowFigure yog daim duab schematic ntawm chopper tas li tam sim no tsav Circuit Court, nyob rau hauv uas tsuas yog ib theem tsav Circuit Court yog qhia, thiab lwm theem yog tib yam. Lub on-off ntawm theem winding yog tswj ua ke los ntawm kev hloov raj VT1 thiab VT2. Lub emitter ntawm VT2 txuas nrog ib qho piv txwv tsis kam R, thiab lub siab poob ntawm qhov tsis kam yog proportional rau tam sim no I ntawm theem winding.
Thaum tus tswj pulse UI nyob rau ntawm high voltage, ob qho tib si VT1 thiab VT2 hloov raj yog hloov rau, thiab dc fais fab mov muab cov winding. Vim yog qhov cuam tshuam ntawm inductance ntawm winding, qhov voltage ntawm cov qauv tsis kam R nce maj mam. Thaum tus nqi ntawm qhov muab hluav taws xob ua tau dhau lawm, tus sib piv tso tawm qis qis, yog li lub rooj vag kuj outputs qis. VT1 raug txiav tawm thiab dc fais fab mov raug txiav tawm. Thaum qhov hluav taws xob ntawm cov qauv ua haujlwm R yog tsawg dua li qhov muab hluav taws xob ua, qhov sib piv tso zis siab, thiab lub rooj vag kuj tso zis siab, VT1 tau hloov dua tshiab, thiab cov khoom siv hluav taws xob dc pib muab lub zog rau lub winding dua. Tshaj thiab dhau mus, tam sim no hauv theem winding yog stabilized ntawm tus nqi txiav txim los ntawm qhov muab voltage Ua.
Thaum siv lub tshuab hluav taws xob tsis tu ncua, lub zog hluav taws xob hluav taws xob sib piv cov ntsuas hluav taws xob ntawm lub cev muaj zog thiab tseem nyob tas li. Cov tsav hluav taws xob tas li yog qhov yooj yim thiab pheej yig dua li cov tsav tam sim no tsis tu ncua, uas tswj cov khoom siv hluav taws xob kom ntseeg tau tias muaj qhov ruaj khov tam sim no muab rau lub cev muaj zog. Rau qhov tsis tu ncua voltage tsav, qhov kev tiv thaiv ntawm lub voj voog tsav yuav txwv qhov siab tshaj plaws tam sim no, thiab inductance ntawm lub cev muaj zog yuav txwv qhov ceev ntawm qhov tam sim no nce. Ntawm qhov nrawm qis, qhov tsis kam yog qhov txwv rau tam sim no (thiab torque) tiam. Lub cev muaj zog muaj lub zog zoo thiab kev tswj xyuas thiab ua haujlwm zoo. Txawm li cas los xij, raws li lub cev muaj zog nce, qhov inductance thiab lub sijhawm nce tam sim no pib tiv thaiv qhov tam sim no los ntawm kev ncav cuag nws lub hom phiaj tus nqi. Ntxiv mus, raws li lub cev muaj zog ceev nce, lub nraub qaum EMF kuj nce, uas txhais tau hais tias ntau lub zog hluav taws xob tsuas yog siv los kov yeej EMF rov qab voltage. Yog li ntawd, lub ntsiab tsis zoo ntawm qhov tsis tu ncua voltage tsav yog qhov poob sai hauv lub zog uas tsim los ntawm qhov qis qis ntawm stepper lub cev muaj zog.
Kev tsav tsheb ntawm lub tshuab hluav taws xob bipolar stepper yog qhia hauv daim duab 2. Nws siv yim transistors los tsav ob theem ntawm theem. Lub tshuab hluav taws xob bipolar tuaj yeem tsav plaub-xaim lossis rau-xaim stepper motors tib lub sijhawm. Txawm hais tias plaub-xaim lub cev muaj zog tsuas yog siv lub tshuab hluav taws xob bipolar, nws tuaj yeem txo tus nqi ntawm kev siv ntau lawm. Tus naj npawb ntawm transistors nyob rau hauv ib tug bipolar stepping motor tsav Circuit Court yog ob zaug ntawm ib tug unipolar tsav circuit. Plaub lub transistors qis feem ntau yog tsav ncaj qha los ntawm microcontroller, thiab lub transistor sab saud yuav tsum muaj tus nqi siab dua rau sab sauv tsav. Lub transistor ntawm lub bipolar tsav Circuit Court tsuas yog yuav tsum tau dais lub cev muaj zog voltage, yog li nws tsis xav tau ib tug clamp Circuit Court zoo li lub unipolar tsav Circuit Court.
Unipolar thiab bipolar yog feem ntau siv tsav circuits uas cov stepping motors siv. Lub voj voog ib leeg-ncej tsav tsheb siv plaub lub transistors los tsav ob pawg ntawm cov theem ntawm cov kauj ruam lub cev muaj zog, thiab lub cev muaj zog stator winding qauv suav nrog ob pawg coils nrog nruab nrab kais dej (qhov nruab nrab kais ntawm AC coil O, BD coil) nruab nrab kais yog m), thiab tag nrho lub cev muaj zog muaj tag nrho ntawm rau kab nrog kev sib txuas sab nraud. Sab AC tsis tuaj yeem ua kom muaj zog (BD xaus), txwv tsis pub cov hlau nplaum sib nqus tsim los ntawm ob lub kauj ntawm tus ncej sib nqus tshem tawm ib leeg, tsuas yog siv tooj liab ntawm lub kauj yog tsim. Vim tias nws tsuas yog ob theem xwb (AC windings yog ib theem, BD winding yog ib theem), cov lus tseeb yuav tsum yog ob-theem rau-xaim (tau kawg, tam sim no muaj tsib kab, nws txuas nrog rau ob kab pej xeem) Stepping motor.
Ib-theem, lub hwj chim-on winding tsuas yog ib theem, sib txuas mus rau theem tam sim no tsim lub kaum sab xis tig (cov tshuab hluav taws xob sib txawv, 18 degrees 15 7.5 5, sib xyaw lub cev muaj zog 1.8 degrees thiab 0.9 degrees, cov nram qab no 1.8 degrees raug xa mus rau txoj kev zoo siab no, thiab cov lus teb ntawm txhua qhov kev vibration yog rotation. siab dhau lawm, nws yog ib qho yooj yim los tsim ib qho kev tawm tshiab.
Ob-theem excitation: ob-theem simultaneous ncig tam sim no, kuj siv ib txoj kev hloov cov theem tam sim no nyob rau hauv lem, lub thib ob-theem siv lub kaum sab xis yog 1.8 degrees, tag nrho cov tam sim no ntawm ob sects yog 2 zaug, thiab lub siab tshaj plaws pib zaus nce, yuav tau txais kev kub ceev, ntxiv, kev ua haujlwm ntau dhau.
1-2 Excitation: Qhov no yog ib txoj hauv kev ua haujlwm ntawm kev ua haujlwm ntawm kev ua haujlwm siab, ob-theem excitation, pib tam sim no, txhua ob ib txwm hloov pauv, yog li lub kaum sab xis yog 0.9 degrees, qhov excitation tam sim no loj, thiab kev ua haujlwm dhau los yog qhov zoo. Qhov siab tshaj plaws pib zaus kuj siab. Feem ntau hu ua ib nrab-txoj kev excitation tsav
Post lub sij hawm: Jul-06-2023