Version 4
SHEET 1 904 1012
WIRE 448 -112 432 -112
WIRE 192 -80 176 -80
WIRE 336 -80 288 -80
WIRE 448 -80 448 -112
WIRE 448 -80 416 -80
WIRE 480 -80 448 -80
WIRE 592 -80 560 -80
WIRE 176 -48 176 -80
WIRE 304 -48 288 -48
WIRE 448 -48 448 -80
WIRE 176 48 176 32
WIRE 304 48 304 16
WIRE 304 48 176 48
WIRE 448 48 448 16
WIRE 448 48 304 48
WIRE 592 48 592 -80
WIRE 592 48 448 48
WIRE 176 304 160 304
WIRE 160 320 160 304
FLAG 192 -80 1
FLAG 176 48 0
FLAG 160 400 0
FLAG 176 304 2
FLAG 288 -80 1
FLAG 288 -48 1
SYMBOL current 176 32 R180
WINDOW 0 24 80 Left 2
WINDOW 3 24 0 Left 2
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName I1
SYMATTR Value {i1}
SYMBOL cap 288 -48 R0
SYMATTR InstName C1
SYMATTR Value {c1}
SYMBOL res 320 -64 R270
WINDOW 0 27 56 VTop 2
WINDOW 3 5 56 VBottom 2
SYMATTR InstName R1
SYMATTR Value {r1}
SYMBOL bv 160 304 R0
SYMATTR InstName B1
SYMATTR Value V=(i1*(r1+r2))*(1-fx())
SYMBOL cap 432 -48 R0
SYMATTR InstName C2
SYMATTR Value {c2}
SYMBOL res 464 -64 R270
WINDOW 0 27 56 VTop 2
WINDOW 3 5 56 VBottom 2
SYMATTR InstName R2
SYMATTR Value {r2}
TEXT 144 -240 Left 2 !.tran 10 startup
TEXT 144 -224 Left 2 !.param i1=1, r1=1, r2=1, c1=1, c2=1
TEXT 144 96 Left 2 !;R1, C1, R2, C2\n.func fx() {(\n+ -exp(time*xn)*c1*r1+\n+  exp(time*xp)*c1*r1-\n+  exp(time*xn)*c1*r2+\n+  exp(time*xp)*c1*r2+\n+  exp(time*xn)*c2*r2-\n+  exp(time*xp)*c2*r2+\n+  exp(time*xn)*x1+\n+  exp(time*xp)*x1)/\n+  (2*x1)\n+ }
TEXT 360 96 Left 2 ;;R2, C2\n.func fx() {i1*r2*(1-\n+ exp(-time/(c2*r2)))\n+ }
TEXT 144 -208 Left 2 !.param x1=sqrt((c1*r1+c1*r2+c2*r2)**2-(4*c1*c2*r1*r2))\n.param xp=(x1/(2*c1*c2*r1*r2))-(1/(2*c1*r1))-(1/(2*c2*r1))-(1/(2*c2*r2))\n.param xn=(-x1/(2*c1*c2*r1*r2))-(1/(2*c1*r1))-(1/(2*c2*r1))-(1/(2*c2*r2))
TEXT 144 -152 Left 2 !.meas mx1 param x1\n.meas mxp param xp\n.meas mxn param xn
TEXT 392 -224 Left 2 ;.param i1=2, r1=3, r2=4, c1=5, c2=6
TEXT 360 176 Left 2 ;;R1, R2, C2\n.func fx() {i1*(r2*(1-\n+ exp(-time/(c2*r2)))+\n+ r1)}
TEXT 304 -152 Left 2 !,meas md param 2*c1*x1
TEXT -312 -240 Left 2 ;======================================\nR2, C2\n1/(1/R+s*C) = R/(C*R*s+1)\nInverseLaplaceTransform[R_2/(C_2*R_2*s+1),s,t]\ne^(-t/(C_2 R_2))/C_2\nV=exp(-time/(c2*r2))\n \nt0-> 1/c2-x/c2\nV=1-exp(-time/(c2*r2))\n \ntx-> v=i1*r2\nV=i1*r2*(1-exp(-time/(c2*r2)))  -> OK\n \n;R2, C2\n.func fx() {i1*r2*(1-\n+ exp(-time/(c2*r2)))\n+ }\n \n\n======================================\nR1, R2, C2\nInverseLaplaceTransform[R_1+(R_2/(C_2*R_2*s+1)),s,t]\ne^(-t/(C_2 R_2))/C_2+R_1 delta(t)\nV=exp(-time/(c2*r2))\n \nt0-> 1/c2-x/c2\nV=1-exp(-time/(c2*r2))\n \ntx-> v=i1*(r1+r2)\nV=i1*(r2*(1-exp(-time/(c2*r2)))+r1)  -> OK\n \n;R1, R2, C2\n.func fx() {i1*(r2*(1-\n+ exp(-time/(c2*r2)))+\n+ r1)}\n \n======================================\nR1, C1, R2, C2\nInverseLaplaceTransform[1/(s*C_1+(1/(R_1+(R_2/(R_2*C_2*s+1))))),s,t]\n.param x1=sqrt((c1*r1+c1*r2+c2*r2)**2-(4*c1*c2*r1*r2))\n.param xp=(x1/(2*c1*c2*r1*r2))-(1/(2*c1*r1))-(1/(2*c2*r1))-(1/(2*c2*r2))\n.param xn=(-x1/(2*c1*c2*r1*r2))-(1/(2*c1*r1))-(1/(2*c2*r1))-(1/(2*c2*r2))\n \n.func fx() {(\n+ -exp(time*xn)*c1*r1+\n+  exp(time*xp)*c1*r1-\n+  exp(time*xn)*c1*r2+\n+  exp(time*xp)*c1*r2+\n+  exp(time*xn)*c2*r2-\n+  exp(time*xp)*c2*r2+\n+  exp(time*xn)*x1+\n+  exp(time*xp)*x1)/\n+  (2*c1*x1)\n+ }\n \n-1*c1*r1+1*c1*r1\n-1*c1*r2+1*c1*r2\n+1*c2*r2-1*c2*r2\n+1*x1+1*x1\n/(2*c1*x1)\n \n+2*x1/(2*c1*x1) -> 1/C1