Reverse current ke ha voltage e hlahisoang ke sistimi e phahame ho feta voltage e kenang, e etsang hore hajoale e phalle ka har'a sistimi e lebile ka morao.
Mehloli:
1. 'mele oa diode e ba leeme ho ea pele ha MOSFET e sebelisoa bakeng sa lisebelisoa tsa ho fetola thepa.
2. ho theoha ka tšohanyetso ha motlakase oa ho kenya letsoho ha motlakase o khaotsoe ho tloha tsamaisong.
Liketsahalo tseo ho tsona thibelo ea morao-rao e lokelang ho nahanoa:
1. ha matla a multiplexed phepelo e laoloa ke MOS
2. Taolo ea ORing.ORing e tšoana le ho pheta-pheta matla, ntle le hore ho e-na le ho khetha motlakase ho matlafatsa tsamaiso, motlakase o phahameng ka ho fetisisa o sebelisoa kamehla ho matlafatsa tsamaiso.
3. ho theoha butle ha motlakase nakong ea tahlehelo ea matla, haholo-holo ha capacitance e hlahisoang e le kholo haholo ho feta matla a ho kenya letsoho.
Likotsi:
1. Reverse current e ka senya potoloho ea ka hare le lisebelisoa tsa motlakase
2. li-spikes tsa morao-rao li ka boela tsa senya lithapo le lihokelo
3. 'mele oa diode oa MOS o phahama ka tšebeliso ea matla mme o ka ba oa senyeha
Mekhoa ea ho ntlafatsa:
1. Sebelisa diode
Li-diode, haholo-holo li-Schottky diode, li sirelelitsoe ka tlhaho khahlanong le polarity ea morao-rao le ea morao-rao, empa li theko e boima, li na le maqhubu a phahameng a ho lutla, 'me li hloka ho qhalloa ha mocheso.
2. Sebelisa MOS ea morao-rao
Litsela ka bobeli li ka thijoa, empa li lula sebakeng se seholo sa boto, impedance e phahameng ea conduction, litšenyehelo tse phahameng.
Setšoantšong se latelang, taolo ea transistor conduction, mokelli oa eona o tlaase, tse peli tsa PMOS conduction, ha transistor e tima, haeba tlhahiso e phahametse ho kenya letsoho, lehlakoreng le letona la MOS body diode conduction, e le hore boemo ba D bo be teng. phahameng, ho etsa hore boemo ba G bo phahame, lehlakore le letšehali la diode ea 'mele oa MOS ha le fete,' me ka nako e ts'oanang, ka lebaka la MOS ea VSG bakeng sa ho theoha ha 'mele oa diode ha ho fihle moeling oa motlakase, kahoo MOS tse peli li koalehile, tse ileng tsa thibela tlhahiso ea hona joale.Sena se thibela hona joale ho tloha tlhahiso ho ea ho ho kenya letsoho.
3. Fetola MOS
Reverse MOS e ka thibela tlhahiso ho kenyelletso ea morao-rao, empa bobe ke hore kamehla ho na le tsela ea diode ea 'mele ho tloha ho kenyelletso ho ea ho tlhahiso,' me e se bohlale ka ho lekaneng, ha tlhahiso e le khōlō ho feta ho kenya letsoho, e ke ke ea fetoha. ho tloha MOS, empa hape ho hlokahala ho eketsa potoloho ea papiso ea motlakase, kahoo ho na le diode e loketseng hamorao.
4. Phapanyetsano ea mojaro
5. Multiplexing
Multiplexing: ho khetha e 'ngoe ea lisebelisoa tse peli kapa ho feta tse kenang lipakeng tsa tsona ho matlafatsa tlhahiso e le 'ngoe.
6. Diode e loketseng
Ho na le lipheo tse peli tsa ho theha diode e loketseng, e 'ngoe ke ho etsisa Schottky' me e 'ngoe ke hore ho tlameha ho be le potoloho ea papiso ea sephetho ho e tima ka morao.
Nako ea poso: Aug-10-2023