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Nik Peris
Isodinamo kiklwma otan eksetazete to kiklwma apo thn R5: Methodologia... Vhma 1o: Ypologismos ths Rthevenin: Afairoume oles tis piges tashs kai ta akra tous ta enwnoume (braxikiklwma) afairoume kai thn mia pigh entashs kai ta akra ths ta afinoume anoikta (anoiktokiklwma) Etsi tha exoume ena sxima opou h R1 h R7 h R8 tha einai sthn seira, estw Ra=R1+R7+R8, h Ra twra tha einai parallilh me thn R2, Rb=RaR2/Ra+R2 kai h Rb se seira me thn R3, Rc=Rb+R3=Rthevenin.... Vhma 20: Ypologismos ths Vthenenin: Sthn ousia h Vth einai h ptwsh tashs sthn R5. Enas tropos gia ton ipologismo ths ptwshs tashs sthn R5 pou tha proteina egw einai to thwrima ths epallilias epidi to kiklwma periexei grammika kai amfiplevra stoixeia. Sumfwna me auto to thewrima h ptwsh tashs sth R5 (dhladh h Rthevenin) tha prokipsei apo to algevriko athroisma twn ptwsewn taseis pou tha prokalouse kathe pigi sthn R3 an drouse moni ths sto kiklwma... Etsi vraxikiklwnoume kathe fora oles tis piges taseis kai anoiktokiklwnoume thn pigh entashs kratontas kathe fora mia pigi sto kiklwma... Arxika kratame thn V1 kai afairoume oles tis ipoloipes opws proanaferame... H V1 sunanta sthn seira (apo to thetiko ths akro) thn R1, R7 kai R8 me antistoixes ptwseis taseis se kathe antistash apo autes IR1, IR7 kai IR8 h sunolika I(R1+R7+R8 ). To I sthn sinexeia xwrizetai se duo reumata estw sto I1 kai I2 opou I=I1+I2. To I1 sunanta tis antistaseis R5 kai R3 me ptwseis taseis antistoixa I1R5 kai I1R3 h sunolika gia ton klado I1(R5+R3). To I2 sunanta thn R2 antistash me ptwsh tashs I2R2. Omws I1(R5+R3)=I2R2=V1-I(R1+R7+R8 ) kai antikatastontas to I=I1+I2 tha exeis 2 eksiswseis me dio agnwstous kai etsi vriskeis thn I1R5 pou theleis..antistoixa ergazesai kai me tis alles piges kai tha vriskeis ta antoistixa ginomena IR5 diladi tis ptwseis taseis sthn R5 apo kathe pigi kai ta prostheteis me ta prosima pou vriskeis kathe fora... Kai vriskeis telika thn Vthevenin.. Elpizw mono na min se perdepsa