PCB yemutyairi wemotokari yemarobhoti: Simba reSiteji, EMI neDziviriro

MaPCB evatyairi vemota anogara pakati pelogic nekufamba kwerobhoti. Anotora zviratidzo zvekuraira zvine simba shoma kubva kucontroller uye anogadzira ma "high-current", "phase currents" akagadzirwa nenguva chaiyo anoita kuti robhoti rifambe. Pamapurogiramu erobhoti, mabhodhi evatyairi vemota anowanzova emagetsi ane simba guru, "high-current", uye "thermal-loaded" akawanda - achibvisa makumi kusvika kumazana emawatts nguva dzose uye achitakura ma "phase currents" kubva kuma "amps" mashoma kusvika kuma "amps" anopfuura zana. Peji rino rinotaura nezvekugadzirwa kwePCB yevatyairi vemota yerobhoti: sarudzo dzekugadzira dzinotungamirirwa neactuator, power stage engineering, thermal uye EMI disciplines, uye kuti zvinhu zvinofanirwa kufungwa nezvazvo pakugadzira zvinoshanda sei.

Vatyairi vemota ndipo panowanikwawo hunyanzvi hwerobhoti hwekuvimbika. Bhodhi rekutyaira rinonyangarika mukati memiganhu yekupisa, rine EMI yaro, rinoona zvikanganiso zvakavimbika, uye rinopa maitiro akachengeteka kana robhoti rakavimbika rinotsigira robhoti rakavimbika; bhodhi rekutyaira rinokundikana muzvidzidzo izvi rinoburitsa mhedzisiro pasinei nekuti zvimwe zvemagetsi zvakagadzirwa zvakanaka sei. Kuita kuti mabhodhi ekutyaira mota ave nemazvo ndeimwe yekudyara mari yakawanda muinjiniya inogona kuitwa nechirongwa cherobhoti.

Zvinoitwa nePCB dzeRobot Motor Driver

MaPCB emutyairi wemota anoshandura mirairo yesoftware kuita current inodzorwa

Bhodhi remutyairi wemota ndipo panowanikwa masaini ekuraira anova phase current, torque, heat, uye EMI. Mumarobhoti, shanduko iyoyo inofanira kunge yakapfava, inoyerwa, yakachengetedzwa, uye yakagadzikana pakupisa nekuti kunaka kwekufamba uye kuvimbika kwemunda zvinoenderana nazvo.

MaPCB evatyairi vemota anogara pakati pekutonga kwemagetsi nekufamba kwemuchina. Anotora masaini ekuraira ane simba shoma kubva kumutongi uye anogadzira ma "high-current", akagadzirwa nenguva chaiyo, ayo anoita kuti ma "actuator" afambe. Pamarobhoti, maPCB evatyairi vemota anowanzova mabhodhi ane simba guru musystem, achibvisa makumi kusvika kumazana emawatts nguva dzose uye achitakura ma "phase currents" kubva kuma "amps" mashoma kusvika kuma "amps" anopfuura zana zvichienderana ne "actuator". Chii chinoita kuti vatyairi vemarobhoti vemota vanyanye kuda:

• Kuwanda kwehuwandu hwemazuva ano: ma "phase currents" e10-100 A ari pamabhodhi akamanikana. Kurema kwemhangura, trace geometry, uye kutonga kwekupisa zvese zvinodzorwa nezvinodiwa ne "current density".
• Fast switching: Kuchinjana kweMOSFET kana IGBT pa10-100 kHz. Kuchinjana kwemativi kunogadzira EMI inofanira kunge iri mukati mebhodhi redhiraivha pachayo.
• Kunzwa kwemagetsi kwakanyatsojeka: shunt kana Hall-effect sensing inotsigira closed-loop torque control. Kuiswa kwesensor uye marongerwo azvo zvinokanganisa kunyatsoyera kwekuyerwa zvakananga.
• Thermal dissipation: Kurasikirwa kwedanho rekutyaira kwakawanda paMOSFET kana IGBTs. Kupisa kunopararira kuburikidza nemhangura inorema, thermal vias, uye mechanical heatsinking pamwe chete zvinosarudza tembiricha yejunction.
• Kuiswa kwemurwere kwake ega: Mamwe magadzirirwo anoda galvanic isolation pakati pe control side ne power side. Optical, magnetic, kana capacitive isolation zvichienderana nezvinodiwa chaizvo.
• Magadzirirwo ekuchengetedza: Zvikanganiso zvekutyaira zvinofanira kuunza mhedzisiro yakachengeteka. Dziviriro yehardware, kunzwa kusingashande zvakanaka, uye maseketi ekudzivirira torque pamwe chete zvinopa maitiro ekuchengetedza.

Mapurogiramu anobatanidza dhizaini yemutyairi wemota kare - sarudzo yemuchina wemagetsi isati yavharwa zvizere - dzimwe nguva anokanganisa sarudzo yemuchina wemagetsi kuburikidza nemhinduro yekushanda kwemagetsi. Muchina wemagetsi unoda dziviriro isingawanzoitiki kana dziviriro isingawanzoitiki unogona kusundira kune imwe actuator ine mashandiro akafanana emuchina uye midziyo yemagetsi iri nyore kutyaira. Mhinduro iyi yemativi maviri pakati pekugadzira kwemuchina nemagetsi inowanzo buritsa mhedzisiro iri nani pane dhizaini yakatevedzana apo sarudzo yemuchina inomira isati yaongororwa nemagetsi.

Kusarudzwa kweActuator kunokanganisawo huwandu hwemabhodhi ekutyaira anodiwa nerobhoti. Robhoti rinoita semunhu rinogona kuda madhiraivha akawanda; ruoko rwemuindasitiri runowanzova nemadhiraivha mashoma asi makuru. Nhamba uye rudzi rwemadhiraivha chaiwo zvinoumba bhendi rehuwandu hwekugadzira rebhodhi rekutyaira - madhiraivha madiki mazhinji akafanana anochinja NRE mumayuniti mazhinji, nepo mamwe madhiraivha ane simba guru ari pedyo nehupfumi hwemuenzaniso.

Kugadzirisa mashandisirwo emagetsi emota kunoratidza kana robhoti iri kufamba zvakanaka uye zvakavimbika kana kuti richiita kufamba kusingatarisirwi, kusina kuvimbika uye kukundikana nguva isati yakwana. Kugadzira uye kugadzira madhiraivha kunokanganisa mashandiro erobhoti rese.

Mhando dzeActuator uye Zvinodiwa zveMutyairi

Sarudzo yeActuator inosarudza topology, sensing, uye protection strategy

Masisitimu eBLDC, PMSM, stepper, brushed DC, servo, uye linear actuator anoda bridge topology yakasiyana, current sensing, feedback, dziviriro, uye control maitiro. Kuomesa actuator usati waongorora driver electronics kunogona kukonzera zvirango zvisingakoshi zve current, thermal, kana sourcing.

Rudzi rweActuator runotyaira sarudzo dzakawanda dzedhizaini pabhodhi remutyairi wemota. MaActuator akasiyana anoda madhiraivha emagetsi akasiyana, sensor dzakasiyana, uye maalgorithms akasiyana ekudzora. Mapoka makuru eActuator uye zvinodiwa nemutyairi ndeaya:

• BLDC (DC isina bhurashi): Kuchinja kwemuchina we inverter wezvikamu zvitatu unotungamira trapezoidal kana sinusoidal. Kuchinja kwe sensor ye hall kana sensor isina. Kunowanzo shandiswa pamavhiri ekutyaira, ma propeller, uye mashandisirwo ekufamba kwakajairika.
• PMSM (permanent-magnet synchronous): Inverter ine zvikamu zvitatu ine sinusoidal FOC control. Mhinduro ye encoder yenzvimbo chaiyo uye torque control. Yakajairika pamaservo akanyatsojeka uye mashandisirwo ekufambisa anoda simba.
• Munhu anokwira stepper: kutyaira kwematanho maviri kana mashanu ne microstepping. Nzvimbo yakavhurika-roop ne default; sarudzo dzakavharika-roop dziripo. Zvakajairika pamashandisirwo ekugadzirisa nekunyatsorongeka kwemutengo wakaderera.
• Servo (AC kana DC): kufamba kwakanyatsojeka uye mhinduro ye encoder. AC servo iri kuwanda; DC servo yakakweshwa ichiderera asi ichiri kushandiswa. Yakajairika pamaoko eindasitiri uye marobhoti akanyatsojeka.
• Chinokonzeresa mutsetse: magadzirirwo akasiyana-siyana ekutyaira zvichienderana netekinoroji yeactuator. Chikuruu chebhora chinofambiswa nezwi, piezo, kana chimwe nechimwe chine zvinodiwa pakutyaira.

Kurongeka kwe switching commutation loop ndeimwe yenzvimbo chaidzo uko dhizaini yedhiraivha inobudirira kana kugadzira marginal EMI performance. Yese nanohenry ye loop inductance munzira ye commutation inogadzira voltage overshoot pakuchinja kwe switching; overshoot yega yega inogadzira broadband emissions. Mapurogiramu anobata switching loop layout senzira - ine zvinangwa zve loop area zvakatsanangurwa uye post-layout inspection - inosangana nezvinangwa zve EMC zvakavimbika kupfuura mapurogiramu anovimba nemitemo yehurongwa.

Dhizaini yekupisa inosangana nezvakatsanangurwa pamutengo wepamusoro inofanirawo kurarama panguva yakaoma. Bhodhi rekutyaira rakakura remagetsi anoenderera mberi rinogona kuramba richikundikana pamitambo yekuwandisa inowanzoitika mumarobhoti - kutanga-up surges, mamiriro ekumira panguva yekusangana nezvipingamupinyi, kana zviitiko zvenguva pfupi zve peak-torque. Zvirongwa zvinotsanangura dhizaini yekupisa zvichienderana nekushanda chaiko kusanganisira zviitiko zvakaipa-zviitiko zvekutonhora saizi kuti zvirarame sevhisi chaiyo; mapurogiramu anotsanangura zvinopesana neavhareji yepakati dzimwe nguva anoona kutadza kwekupisa pazviitiko zvisingawanzoitiki zvine mutoro wakawanda.

Kusarudzwa kweActuator padanho rekugadzira michina kunonyanya kusarudza madhiraivha emagetsi. Mapurogiramu anobatanidza kusarudzwa kweactuator yemakanika nemagetsi anogadzira magadzirirwo akabatanidzwa; mapurogiramu anozvibata zvakasiyana dzimwe nguva anoona kusawirirana pakubatanidzwa. Peji rePCB reservo neBLDC controller rinofukidza maelektroni chaiwo.

Dhizaini yeSiteji yeMagetsi: Maswichi, Gate Drive, Bhazi, Kunzwa, Kurongeka

Kurongeka kwechikamu chesimba kunonyanya kuenderana ne geometry ye current-loop

Gate drive, MOSFET kana IGBT placement, DC-link capacitors, shunts, phase outputs, uye return paths zvinofanirwa kuderedza high-di/dt loop area. Bhodhi rinogona kusangana nezvinodiwa zve schematic uye richikundikana EMI kana thermal testing kana power-stage current loops dzisina kunaka mumuviri.

Dhizaini yedanho remagetsi pabhodhi remutyairi wemota ndipo panoitika uinjiniya wemagetsi ane simba guru. Kusarudzwa kweMOSFET kana IGBT, dhizaini yedhiraivha yegedhi, uye manejimendi yekupisa pamwe chete zvinosarudza kugona kwesimba redhiraivha uye kuvimbika kwayo. Zvinhu zvikuru zvekufunga nezvazvo padhizaini ndeizvi:

• Sarudzo yekuchinja: MOSFET yemagetsi akaderera (<200 V) uye frequency yakakwira yekuchinja; IGBT yemagetsi akakwira kana frequency yakaderera. GaN neSiC zviri kushandiswa zvakanyanya mukushandiswa kwemagetsi akawandisa.
• Kutyaira gedhi: madhiraivha egedhi akaparadzaniswa kana kuti anoratidzwa pasi ane simba rekutonga nguva isati yasvika. Kusarudzwa kwe resistor yekutyaira kwegedhi kunoenzanisa kurasikirwa kwekuchinjana nekugadzirwa kweEMI.
• Kukwanisa kwebhazi: bhazi reDC rakaoma rine ma capacitor mashoma eESR pamwe nekupatsanurwa kweceramic. Sarudzo ye capacitor inoenderana ne ripple current uye voltage.
• Kunzwa kwazvino: shunt yerutivi rwakaderera yakachipa uye iri nyore; shunt yemukati mechikamu inotsigira FOC zvakananga; Hall-effect yemashandisirwo emagetsi ane simba rakawanda kana akaparadzaniswa. Kuiswa kwayo kunokanganisa kururama kwekuyera.
• Zvishongo zvekuchenesa nekubatanidza: dzimwe nguva zvinodiwa kudzora kuchinjana kwekuchinjana. Kutengeserana pakati pekuderedza kurasikirwa kwekuchinjana nekugadzirwa kweEMI.
• marongerwo: nzvimbo shoma ye loop iri munzira yekuchinjana. Nanohenry yega yega ye loop inductance inogadzira voltage yakawandisa pamipendero yekuchinjana.

Kuchengetedza EMI kuri nyore kugadzira pane kugadzirisa mushure memuenzaniso. Mapurogiramu anoronga kusefa, kudzivirira, uye kupatsanura panguva yekugadzirwa kwekutanga anosangana nezvinangwa zveEMC pamaprototype ekutanga; mapurogiramu anoona EMC sedambudziko repost-prototype anowanzoda kugadziriswa kugadzirisa matambudziko angadai akadzivirirwa nekugadzirwa kwekutanga. Mari yekutanga yekudyara muinjiniya yeEMC idiki kana tichienzanisa nemari yekudzokorora yainodzivisa.

Magetsi emagetsi anotyaira anotarisirwa kuchengetedza emarobhoti anoshanda pamwe chete nemamwe maapplication ari pedyo nevanhu anoda magadzirirwo chaiwo ekuchengetedza — dual-channel monitoring, safe torque off circuits zvichisangana neIEC 61800-5-2, uye hardware vimbiso dzinoramba dziripo pakukundikana kwesoftware. Magadzirirwo aya anowedzera kuoma kwedhizaini uye zvinodiwa zvekusimbisa kugadzirwa asi anogonesa maapplication aisagona kutumirwa munzvimbo dziri pedyo nevanhu.

Kutarisira Kupisa: Mhangura Inorema, Mafambiro Ekupisa, Metal-Core, Heatsinks

Dhizaini yekupisa inofanira kusimbiswa zvichienderana neprofile yebasa, kwete chiyero chepamusoro

Zvikamu zvemutyairi wemota zvinogona kurarama kwenguva pfupi yemhepo ichikundikana kana paine kumhanyisa kunodzokororwa, zviitiko zvekumira, kana tembiricha yakakwira. Huremu hwemhangura, ma thermal vias, heatsinking, airflow, enclosure conduction, uye derating zvinofanirwa kuongororwa zvichienderana nebasa rerobhoti.

Kutarisira kupisa pamabhodhi emota kunowanzova chinhu chinogumira pakugadzirwa. Kurasikirwa nedhiraivha nguva dzose kwemakumi emawatts pabhodhi diki kunoda mainjiniya ekupisa nemaune. Nzira huru dzekupisa ndeidzi:

• Mhangura inorema: 2-4 oz yekunze yevanotyaira mota. Inoparadzira kupisa kubva pama switch pads kuenda kunzvimbo yakakura yebhodhi. Yakafukidzwa papeji rekutungamira dhizaini yePCB yerobhoti remhangura rinorema.
• Thermal vias: ma "vias" ari pasi pe "switch pads" anoendesa kupisa kune mhangura iri parutivi rwakatarisana kana kuti "heatsink". Kuburikidza nehuwandu hwezvinhu zvinotengeswa zvichienderana nemutengo wekugadzira.
• PCB yesimbi-musimboti: ndiro yesimbi yearuminiyamu kana yemhangura yekugadzirwa kwesimba guru. Pfuti yesimbi inoendesa kupisa zvakananga ku heatsink yemhando yepamusoro.
• Chinosungirirwa paHeatsink: heatsink yemakanika yakabatana nemaswichi kuburikidza nezvinhu zvinoshandisa thermal interface. Yakajairika pamadhiraivha anobvisa makumi emawati nguva dzose.
• Mhepo: kumanikidzwa kana kwechisikigo convection saizi yekuparadza drive. Ruzha rwefeni uye kuvimbika zvinotariswa pamwe chete nekushanda kwekutonhodza.
• Kudzikisa kupisa: maswichi anoratidza margin ari pamusoro pekupisa kwejunction kunotarisirwa. Zvikamu zvevatengi zvinomhanya zvichienderana nespec; zvikamu zverobhoti zvinomhanya zvine demandi kwenguva refu yebasa.

Rutivi rwekugadzira rwekuvimbika kwebhodhi redhiraivha runosanganisira kutarisisa majoini e solder pasi pekumanikidzwa kwe thermal cycling. Madhiraivha ane simba guru anotenderera nekupisa nemutoro, majoini e solder anorema anofanira kugara kwemakore ekufamba nebhasikoro. Kurongeka kwekubatanidza kunosanganisira chimiro chakakodzera chekuyererazve, solder alloy yakakodzera, uye kuongorora marginal joints asati atumirwa; mapurogiramu asingatenderi iyi anowanzoona kutadza kwe thermal-cycling mubasa remumunda.

Magwaro ekugadzira madhiraivha haangosanganisiri chete marekodhi ekuyedza akajairwa asiwo humbowo hwakanangana nekuchengetedzeka. Kusimbiswa kwedunhu rekudzivirira payuniti, kugadziriswa kwekuona kwemagetsi payuniti imwe neimwe uko kururama kwakakosha, uye marekodhi ekugadzira anotsigira kutumirwa kwezvitupa zvevatengi pamwe chete zvinoumba paki yemagwaro edhiraivha ayo vatengi vemaindasitiri nevanoshandira pamwe chete vanoda.

Kudzivirira kweEMI paMotor Drive Boards

Kuchengetedzwa kweEMI kwakachipa padanho rekugadzira pane mushure mekubatanidzwa kwenzvimbo yacho

Kuchinja-chinja kwemativi, mwaranzi yetambo, ma common-mode currents, uye ground bounce zvinogona kukanganisa ma encoders, ma sensors, ma wireless modules, uye ma safety circuits. Zvinhu zvinodzivirira kuputika, gadhi rinodzivisa kuputika, filtering, return-path control, shielding, uye cable strategy zvinofanirwa kugadzirwa mota isati yagadziriswa uye nzvimbo yacho yavharwa.

EMI iri pamabhodhi emota inogadzirwa nekuchinja ma transients uye inosvibidzwa nebhodhi remota pachayo. Kuva neEMI mukati mebhodhi remota — saka haibatanidzwe ne sensor front-ends kana communication interfaces — inyanzvi yekugadzira. Matekiniki makuru ndeaya:

• Dhizaini yemuchina wekucheka matanda: inodzora mwero wekuchinjana kwemagetsi. Kuchinjana pakati pekurasikirwa kwemagetsi nekugadzirwa kweEMI.
• Kuderedza nzvimbo yedenderedzwa: marobho ekuchinjana kwemagetsi anoramba ari madiki. Nanohenry yega yega ye loop inductance inopenya panguva yekuchinjana.
• Shielding: chivharo chinofambisa mhepo kana chinodzivirira chiri muchikepe pamagadzirirwo anoburitsa mweya yakawanda. Zvinowedzera mutengo asi zvinoderedza kubatana.
• Kuchengeta: Kusefa kwemodhi yakafanana uye differential-mode pakubuda kwedhiraivha. Kunodzivirira mwaranzi yetambo yemota.
• Kupatsanura pasi: Nzvimbo dzakasiyana dzesimba nezviratidzo zvakabatana panzvimbo dzakatarwa. Zvinodzivirira ruzha rwesimba kubva pasi kuenda pasi kuti rusabatanane nezviratidzo zve sensor.
• Dhizaini yetambo: Tambo dzemota dzakadzivirirwa kana bhajeti yeEMI ichidikanwa. Kumiswa kwechidzitiro chetambo kunokanganisa kushanda zvakanaka.

Zvirongwa zvinoona kugadzirwa kwevatyairi vemota sezvakasiyana nekugadzirwa kwebhodhi rekudzora dzimwe nguva zvinorasikirwa nemabhenefiti ekugadzirwa kwakarongeka - kufukidza bvunzo kwakabatana, mafomati emagwaro akarongeka, uye hukama hwakasimba hwevatengesi. Zvirongwa zvinobatanidza kugadzirwa kwekutyaira nekudzora pamutengesi mumwe chete zvinowana mabhenefiti ekubatanidza pamutengo wekuzvipira kumutengesi iyeye wezvikamu zvese zviri zviviri.

Zvinhu zvinosimudzira hupfumi hwekugadzira madhiraivha emota hazviwanzoitiki nekuti mabhodhi anowanzo sanganisa zvikamu zvinodhura zvakanyanya (MOSFETs, madhiraivha egedhi, masensa emagetsi, zvinobatanidza) nekugadzirwa kwemhangura yakawanda. BOM pabhodhi rimwe nerimwe inowanzo pfuura mutengo wekugadzira nekatatu-kashanu, saka kurangwa kwekutsvaga zvikamu kunokosha kupfuura kurangwa kwemutengo wekugadzira. Mapurogiramu anotarisira kurwiswa kwezvikamu anonyatsogadzira madhiraivha asingadhuri; mapurogiramu anotarisa chete pamutengo wekugadzira anowanzo pedza mari yakawanda pazvikamu asingazvizivi.

Peji regwaro rePCB EMI neEMC rinopa gwara rekugadzira marobhoti rinotsanangura zvakawanda nezveinjiniya; mabhodhi emota anowanzova ndiwo manyuko makuru eEMI murobhoti.

Kuonekwa Kwemhosva, Dziviriro, Kudzima Torque Yakachengeteka

Maseketi ekudzivirira anofanira kutsanangura maitiro akachengeteka, kwete chete kupona kwezvikamu

Zvisarudzo zvekubvisa simba remagetsi rakawandisa, kusashanda zvakanaka kwemagetsi, kupisa kwakanyanya, kupfura-kuburikidza, kusvibiswa kwemvura, mabhureki, uye kudzima simba rakachengeteka zvinofanira kuenderana nezvinofanira kuitwa nerobhoti panguva yekukanganisa. Dhiraivha yakachengetedzwa inomira zvisingatarisirwi kana kutangazve zvisina kuchengetedzeka ichiri njodzi yesystem.

Kuona zvikanganiso uye kuchengetedzeka kwemagadzirirwo emota zvinosarudza zvinoitika kana zvinhu zvikafamba zvisina kunaka. Kupisa kwakanyanya, kupisa kwakanyanya, DC bus over-voltage, uye kudzora kutaurirana zvese zvinoda mhinduro dzakachengeteka. Mapoka makuru ekudzivirira ndeaya:

• Dziviriro yemagetsi akawandisa: Muganho wemagetsi edhisiki nedhisiki semutsetse wekutanga; rwendo rwesoftware rwekupfuura simba sewechipiri. Nguva yekupindura yakatarwa nekutsungirira kwemagetsi edhisiki.
• Kupisa kwakanyanya: Kutarisa tembiricha yejunction pa switch; kutarisa tembiricha yemota pa sensor input. Bvisa wobva wadzima tembiricha painowedzera.
• Dziviriro yemabhazi eDC: kuona simba remagetsi akawandisa uye risina simba rakawanda. Kubviswa kwesimba rinodzoreredza simba pa resistor yemabhureki kana saizi yebhazi capacitor kuti rinyure.
• Kudzima torque yakachengeteka: Kudzima kwekuchinja kwehardware kwakavimbiswa. Inosangana neIEC 61800-5-2 STO yemadhiraivha ane mwero wekuchengetedza.
• Kurasikirwa nekutaurirana: maitiro akatsanangurwa kana murairo wekudzora wapera. Kumavirazuva, kubhureki, kana kubata zvichienderana nekushandiswa.
• Kurasikirwa kwe encoder: maitiro anotsanangurwa kana mhinduro yenzvimbo ikakundikana. Kukundikana-kuchengetedzeka kune mamiriro akachengeteka.

Kuenderera mberi kwekukurukurirana kweinjiniya nekugadzira pamusoro pekugadzirwa kwebhodhi remadhiraivha kunovandudza hukama hwemabhodhi nevatengesi nekufamba kwenguva. Ruzivo rwekutadza kwebasa runobva rwadzoka rwunozivisa kuvandudzwa kwedhizaini nekugadzirwa; kucherechedza maitiro kunobva kwadzoka kunozivisa kunatsiridza dhizaini. Mapurogiramu anochengetedza hurukuro iyi anovandudza kuvimbika kwebhodhi remadhiraivha muzvizvarwa zvezvigadzirwa; mapurogiramu anotumira uye anokanganwa anowanzo tumira kuvimbika kwakafanana muzvizvarwa, achirasikirwa nemukana wekuvandudza.

Kusimbiswa kwekupisa kweparutivi rwekugadzira kunowedzera chivimbo kupfuura kutevedzera dhizaini. Dhizaini inosangana nezvinangwa zvekupisa mukutevedzera inogona kusasangana nazvo mubhodhi chaiyo yakagadzirwa nekuda kwekuchinja kwenzvimbo, kusiyana kwechimiro chekupisa, kana kushivirira kwezvikamu. Kuyerwa kwekupisa kwemuenzaniso padanho remuenzaniso kunosimbisa chinangwa chekugadzira uye kunobata matambudziko aizoonekwa seari kushanda.

Kugadzira PCB yemutyairi weMota, Kusimbiswa kweThermal, uye Zvinodiwa zveKuedza

Kuedzwa kwekugadzira kunofanirwa kusanganisira humbowo hwemagetsi, kunzwa, uye kupisa

Kugadzirwa kwevatyairi vemota kunoda zvinopfuura kungoongororwa nemaziso. Kururama kwezvino, maitiro ekutyaira negedhi, miganhu yakarongwa nefirmware, kukwira kwekupisa pamasampuli, zvidziviriro, uye kuvimbika kweconnector zvinofanirwa kusimbiswa kuitira kuti bhodhi rakagadzirwa rienderane nechinangwa chekugadzira.

Kugadzirwa kwePCB yevatyairi vemota kuHighleap kunotsigira zvinodiwa nemagadzirirwo chaiwo ehurongwa hwemabhodhi evatyairi vemota. Kugadzirwa kwemhangura yakawanda, SMT ine simba guru uye kubatanidza maburi, uye kusimbiswa kwekupisa. Hunhu hwacho hunosanganisira:

• Kugadzirwa kwemhangura hombe: kusvika 6 oz yekunze; inorema kana wabvunza. Yakasanganiswa ine huremu hwekunze pamwe neyakajairwa-mukati memupanda.
• Kuungana kwesimba guru: kunyatsotarisa majoini ane simba rakawanda. Kudzokororwa kwemvura kwakagadzirirwa huwandu hwekupisa hwemapedhi makuru.
• Gomba rekupinza rezvinobatanidza: Chinosungirirwa nemafungu kana kuti chinosungirirwa pamagetsi anoshandiswa pamagetsi ane simba guru. Chinosungirirwa pamagetsi kuti chikwanise kushandiswa pamagetsi ane simba guru kana kuti pahuwandu hwemapombi anoshandiswa pamagetsi akawanda.
• Kusimbiswa kwekupisa: Kuyerwa kwekupisa kwemuenzaniso pasi pemamiriro ezvinhu akatarwa emutoro. Inosimbisa chinangwa chekugadzira chinoenderana nechokwadi chakagadzirwa.
• Kuongororwa kweEMI: kuongorora ma prototypes ari pedyo nemunda; kuyedzwa kwepamutemo kwemakamuri kuburikidza nemarabhoritari evanoshanda navo.
• Zvinyorwa: Zvinyorwa zvekuongorora payuniti imwe neimwe zvinosanganisira data rekuongorora kupisa uye mafambiro emagetsi.

Mapurogiramu anotaura nezvekushandiswa kwesample thermal anowana vimbiso; mapurogiramu asingazviite anochengetedza mari yekuyera asi anofunga kuti chinangwa chekugadzira chichazadzikiswa pasina kusimbiswa. Kuchinjana kunoenderana nezvinodiwa zvekuvimbika uye chivimbo chekugadzira; kusimbiswa kwesample iinishuwarenzi isingadhuri yemapurogiramu apo kutadza kwekutyaira kwaizodhura.

Maitiro ese ekubudirira kwezvirongwa zvevatyairi vemota ndeyekugadzira nemaune zvese zvine chekuita nedhiraivha - kupisa, EMI, dziviriro, kunzwa, uye makanika - pamwe chete nehunyanzvi hwekugadzira hunotsigira chinangwa chekugadzira. Mapurogiramu anowana chero cheizvi zvakanaka ari ega asi achiregeredza mamwe anowanzo gadzira madhiraivha anoshanda mune mamwe mamiriro asi achikundikana mune mamwe; mapurogiramu anozvibatanidza ese anogadzira madhiraivha anoshanda zvakavimbika muhurongwa hwese hwebasa.

Mibvunzo Inowanzo bvunzwa PaPCB Yekutyaira Mota

Chii chinonzi PCB yemutyairi wemota yemarobhoti?

PCB yemutyairi wemota yemarobhoti inoshandura mirairo yekudzora ine simba shoma kuita ma "high-current motor phase outputs". Inowanzo sanganisira ma "power switch", ma "gate drivers", "current sensing", ma "protection circuits", ma "connectors", ma "thermal pathways", uye dzimwe nguva ma "feedback" kana "communication interfaces".

Ndedzipi mota dzinoda PCB yemutyairi?

BLDC, PMSM, stepper, brushed DC, servo, uye akawanda ma linear actuators anoda ma driver electronics. Topology yedriver inoenderana nerudzi rwemota, voltage, current, feedback, control method, uye zvinodiwa zvekuchengetedza.

Sei maPCB emutyairi wemota akaoma kugadzira?

Zvinosanganisa magetsi emagetsi akakwira, kuchinja nekukurumidza, kupisa kunopisa, kuyerwa kwemagetsi, kudzivirira, EMI control, uye mechanical connector stress mu compact layout. Zvikanganiso zvidiki zvemarongerwo zvinogona kukonzera EMI, kupisa zvakanyanya, kutadza kuona zvakanaka, kana kutadza kushandisa switch.

PCB yemutyairi wemota inofanira kushandisa mhangura inorema riini?

Shandisa mhangura inorema kana simba remagetsi richikwira uye kupisa kuchipfuura izvo mhangura yakajairwa inogona kutakura zvakachengeteka. Mhangura inorema inowanzo shandiswa panzira dzemotokari, pakupinda kwebhatiri, pamabhazi, uye pamagetsi anobuda, asi inofanira kuenzaniswa nemutengo wekufambisa uye nzira dzemagetsi.

EMI inogona kuderedzwa sei paPCB yemutyairi wemota?

Deredza EMI kuburikidza nekushanda netight switching loops, kudzivirira gedhi kwakakodzera, snubbers kana zvichidikanwa, low-ESL DC-link capacitors, controlled return paths, shielding, filtering, filtering, layout separation, uye motor cable strategy yekungwarira.

Ndedzipi dziviriro dzinofanira kusanganisirwa nemutyairi wemota yemarobhoti?

Dziviriro dzakajairika dzinosanganisira overcurrent, short-circuit, undervoltage lockout, overvoltage, overtemperature, shot-through prevention, reverse polarity kana zvakakodzera, scattering fault, brake control, uye safe torque off kune system dzine chekuita nekuchengetedza.

Kunzwa kwezvino kunofanira kuitwa sei pamabhodhi emota dzevatyairi?

Kunzwa kwemagetsi kunogona kushandisa ma "low-side shunts", "inline shunts", "phase shunts", "Hall sensors", kana "current transformers" zvichienderana nekunyatsorongeka, kupatsanurwa, bandwidth, mutengo, uye zvinodiwa pakurasikirwa. Kurongeka nekusefa zvinokanganisa zvakanyanya kunaka kwekuyera.

Ndezvipi bvunzo dzekugadzira dzinokosha kune maPCB evatyairi vemota?

Miedzo yakakosha inosanganisira kuongororwa kwepower-on, gate-drive verification, current-sense calibration, protection threshold checks, communication checks, connector inspection, thermal sample testing, uye functional testing nemotor kana load representative.