Ayini amandla okushayela kwe-brushless motor?

Nazi izindlela ezimbalwa zokushayela i-brushless DC motor.Ezinye izimfuneko zesistimu eziyisisekelo zibalwe ngezansi:

a.Ama-transistors kagesi: Lawa ngokuvamile ama-MOSFET kanye nama-IGBT akwazi ukumelana nama-voltage aphezulu (ahambisana nezidingo zenjini).Imishini eminingi yasendlini isebenzisa izinjini ezikhiqiza amandla angu-3/8 amahhashi (1HP = 734 W).Ngakho-ke, inani lamanje elijwayelekile elisetshenzisiwe ngu-10A.Amasistimu anamandla kagesi aphezulu ngokuvamile (> 350 V) asebenzisa ama-IGBT.

b.Umshayeli we-MOSFET/IGBT: Ngokuvamile, umshayeli weqembu le-MOSFET noma i-IGBT.Okusho ukuthi, abashayeli abathathu "i-half-bridge" noma abashayeli bezigaba ezintathu bangakhethwa.Lezi zixazululo kufanele zikwazi ukuphatha amandla angemuva e-electromotive (EMF) asuka emotweni ephindwe kabili kumthamo wemoto.Ukwengeza, laba bashayeli kufanele banikeze ukuvikelwa kwama-transistor amandla ngokusebenzisa isikhathi nokulawula ukushintsha, ukuqinisekisa ukuthi i-transistor ephezulu ivaliwe ngaphambi kokuba i-transistor engezansi ivulwe.

c.Isici/ukulawula impendulo: Onjiniyela kufanele bakhe uhlobo oluthile lwento yempendulo ohlelweni lokulawula i-servo.Izibonelo zifaka izinzwa zokubona, izinzwa ze-Hall effect, ama-tachometers, nezinzwa ze-EMF ezingabizi kakhulu ezingabizi kakhulu.Izindlela ezihlukahlukene zokuphendula ziwusizo kakhulu, kuye ngokunemba okudingekayo, isivinini, i-torque.Izinhlelo zokusebenza eziningi zabathengi ngokuvamile zifuna ukusebenzisa ubuchwepheshe obungenazinzwa be-EMF emuva.

d.Isiguquli se-analog-to-digital: Ezimweni eziningi, ukuze uguqule isignali ye-analog ibe isignali yedijithali, isiguquli se-analog-to-digital sidinga ukuklanywa, esingathumela isignali yedijithali ohlelweni lwe-microcontroller.

e.I-microcomputer ye-Single-chip: Wonke amasistimu okulawula iluphu evaliwe (cishe wonke amamotho e-DC angama-brushless ayizinhlelo zokulawula iluphu evaliwe) adinga i-microcomputer ye-single-chip, enomthwalo wezibalo zokulawula i-servo loop, ukulawula i-PID yokulungisa nokuphathwa kwezinzwa.Lezi zilawuli zedijithali ngokuvamile ziyi-16-bit, kodwa izinhlelo zokusebenza eziyinkimbinkimbi zingasebenzisa izilawuli ze-8-bit.

I-Analog Power/Regulator/Reference.Ngokungeziwe ezingxenyeni ezingenhla, amasistimu amaningi aqukethe izinto zikagesi, izilawuli zamandla kagesi, iziguquli zikagesi, nezinye izisetshenziswa ze-analog ezifana neziqapha, ama-LDO, iziguquli ze-DC-to-DC, kanye nama-amplifiers asebenzayo.

I-Analog Power Supplies/Regulators/References: Ngaphezu kwalezi zingxenye ezingenhla, amasistimu amaningi aqukethe izinto zikagesi, izilawuli zikagesi, iziguquli zamandla kagesi, nezinye izisetshenziswa ze-analog ezifana neziqaphi, ama-LDO, iziguquli ze-DC-to-DC, nama-amplifiers asebenzayo.


Isikhathi sokuthumela: Aug-15-2022