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.PS
# ex18.m4
cct_init
[
"$v_i$" rjust; dot
resistor(right_ dimen_) ; llabel(,R_i)
T: dot
line right_ linewid/4
A: opamp with .In1 at Here
line from A.In2 to (T,A.In2)
resistor(down_ dimen_) ; rlabel(,R_g)
ground(,T)
line right_ dimen_ from A.Out
diode(up_ dimen_); dot
{line right_ linewid/2; dot; "$v_o$" ljust }
resistor(left_ to (A.Out,Here)) ; rlabel(,R_o); dot
{ diode(down_ to A.Out); dot }
line to (T,Here) then to T
]
[
define(`dimen_',dimen_*1.25)
B: battery(up_ dimen_*2/3); rlabel(,V^o)
move down dimen_/4
resistor(up_ dimen_); rlabel(,R,)
inductor(right_ elen_); b_current(i); rlabel(,L)
{ capacitor(down_ to (Here,B.start)); rlabel(,C); llabel(+,v,-) }
line right_ dimen_
diode(down_ to (Here,B.start),T); b_current(h(v))
line to B.start
] with .nw at last [].ne+(20bp__,0)
.PE
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