Kugwiritsa ntchito MOSFET mumayendedwe oyendetsa a DC brushless mota

M'moyo wathu watsiku ndi tsiku, DC brushless motors sizodziwika, koma kwenikweni, DC brushless motors, yomwe imakhala ndi thupi la galimoto ndi dalaivala, tsopano imagwiritsidwa ntchito kwambiri m'magawo apamwamba kwambiri monga magalimoto, zida, kayendetsedwe ka mafakitale, makina opangira magetsi ndi magetsi. mlengalenga, chifukwa cha magwiridwe ake odalirika, osatha, kulephera kwapang'onopang'ono, nthawi yamoyo kuposa mota yopukutidwa idakwera pafupifupi ka 6 ndi zabwino zina. Ndi chifukwa galimoto ya DC brushless ili ndi gawo lofunika kwambiri, kotero kuti kuti muthe kusewera mokwanira, kusankha MOSFET yabwino kuyendetsa dera ndilofunikanso kwambiri.

DC motor imayankha mwachangu, kuyambira makokedwe, kuchokera pa liwiro la zero kupita ku liwiro lovotera imatha kupereka magwiridwe antchito, koma zabwino za mota ya DC ndizosowa zake, chifukwa mota ya DC kuti ipange makokedwe okhazikika pansi pamayendedwe olemetsa, mphamvu ya maginito ndi mphamvu ya maginito ya rotor iyenera kusungidwa nthawi zonse 90 °, yomwe imayenera kuzindikiridwa ndi maburashi a carbon ndi rectifier. Maburashi a kaboni ndi ma rectifiers amapanga spark ndi carbon fumbi pomwe mota imazungulira, kotero kuwonjezera pa kuwononga zigawozo, zitha kugwiritsidwa ntchito pang'ono.

Ngati mukufuna kukonza magwiridwe antchito agalimoto yoyendetsa, muyenera kuyambira pazigawo zamagetsi, aMOSFETzomwe zimatha kuyendetsa bwino dera ndizofunikira kwambiri, chifukwa chosowa chochita ichi cha DC brushless motor, Guanhua Weiye ali ndi njira yapadera ya N-channel yowonjezera ma FET amphamvu kwambiri, okhala ndi mtengo wotsika, mphamvu yotsika yosinthira, kuthamanga kwachangu komanso makhalidwe ena.

Pa nthawi yomweyo, iziMOSFETAngagwiritsidwenso ntchito kuyendetsa makina owotcherera ndi kusintha magetsi.