Me pehea te whakahaere tika i te hurihanga motuka dc aukume tuturu kore i muri i te utu hiko

Kia pehea te tika o te mana o te aukume tuturu brushless dc moto commutation i muri i te utu o naianei, ara me pehea te whakahaere tika i te PWM100 % te wa huringa mahi ko te matua ki te hoahoatanga kaiwhakahaere wahangu! Ko te tikanga tenei ko te punaha whakahaere MCU nga ahuatanga e whai ake nei:

1) Kaore i roa ka huri te tere o te A / D, ka taea te haere tonu te tauira tere i muri i te whakawhiti;

2)I roto i te PWM i te wa whakatuwheratanga o te wa motuhake te whakaoho A/D sampling; Na te mea i roto i te inverter PWM me te punaha whakahaere kawenga perceptual, na etahi tawhā piritihi o te punaha o te PWM i te wa e tuwhera ana, e tutakina ana te tangi o te raina wahanga motuka (penei i te ahua 4), ka honoa te tangi ki te A/D sampling circuit, no reira me karo tatou i roto i te tukanga o te whakawhiti PWM ki te A/D sampling. Mena ka whakakorikori tatou i te naianei i te waahi o te PWM i whakatuwheratia i te wa o te whakatauira, ko tatou te toharite o te ia, ka pai ki a tatou te whakahaere i nga utu o naianei.



i roto i te meka, ehara i te mea uaua ki te kimi i taua MCU, penei i te maramara mana motika motuhake XC866 infineon, i runga i te maramara maramara mana programmable CY8C24533 me CYPRESS, me etahi atu XC866 A/D tere huringa ka taea te tae ki te 2 i roto i a maatau, me te wa mahi o te kaupapa, he huringa A / D ki te wa katoa i roto i te wa e waru o tatou, ka whakatauhia te utu o te wa e waru. Ko te CY8C24533 CYPRESS he mea hangaia mo te whakawhanaketanga whakahaere motuka me te maramara A / D tere tere, i roto i tana tere huringa SAR8 ka tae ki te 3 ki a maatau, me te aratau whakakorikori aunoa, ka taea te whakaoho A / D i nga wa katoa i roto i te tauira A / D PWM o naianei, he ngawari hoki ki te mohio ki te mana tika o te waa.

Ko te ahua 2 b ko te punaha e WHAKAMAHI ana i te maramara mana XC866 i muri i te arotautanga o te ine i roto i nga waahanga ngaru o naianei, ka kitea mai i te ahua 2 b, ka whakakorehia te tere o naianei, tata ki te waahanga ngaru tapawha o naianei o te motuka. I roto i te punaha whakahaere o te waka hiko, kua whakakorehia te wiri motika ki te whakatere me te wa omaoma, kua mohiohia te hoahoa kaiwhakahaere ultra-ata.