818-2 Simple nonlinear resistor circuits R KVL: 0= Ri+0 KCL:i=∫(U) i=f(o UF=Rf(o)+U bU.|U=0→i(0)=u,/R RRi=0→D=D U/R P(u.io) P(U,io)--operating point
§18-2 Simple nonlinear resistor circuits R i i = f () − + − + s : ( ) : KCL i f KVL Ri s = = + = → = = → = = − + = + s s s s i i R R R i Rf 0 0 (0) / ( ) P( i ) operating po int 0, 0 − − i 0 • s / R s ( ) 0, 0 P i 0 0 i