Paunenge uchigadzira switching power supply kana motor drive circuit uchishandisa MOSFETs, vanhu vazhinji vanofunga nezve on-resistance, maximum voltage, maximum current, etc. zveMOSFETs, uye vanhu vazhinji vanongofunga zvinhu izvi chete. Dunhu rakadaro rinogona kushanda, asi haisi iyo yakakwana mhinduro, uye izvi hazvibvumidzwe seyakagadzirwa chigadzirwa dhizaini. Saka chii chingave chinodiwa kune chakanakaMOSFET driver circuit? Ngationei!
(1) Kana switch ikabatidza ipapo ipapo, mutyairi wedunhu anofanira kukwanisa kupa yakakura yakakwana yekuchaja ikozvino, kuitira kutiMOSFET gedhi-sosi voltage inokurumidza kusimudzwa kune yaunoda kukosha, uye kuve nechokwadi chekuti switch inogona kukurumidza kuvhurwa uye hapana yakakwira-frequency oscillations pamucheto unokwira.
(2) Mukuchinja kwenguva, dhiraivha yedhiraivha inoda kukwanisa kuona kuti iyoMOSFET gedhi sosi voltage inoramba yakagadzikana, uye yakavimbika conduction.
(3) Turn-off instantaneous drive circuit, inoda kukwanisa kupa yakaderera impedance nzira sezvinobvira, kune MOSFET gedhi sosi capacitive voltage pakati pema electrode ekukurumidza kubuda, kuve nechokwadi chekuti switch inogona kukurumidza kudzimwa.
(4) Dhiraivha yedunhu chimiro chiri nyore uye chakavimbika, chakaderera kurasikirwa.
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