Version 4
SHEET 1 972 680
WIRE -528 -224 -544 -224
WIRE -512 -224 -528 -224
WIRE -432 -224 -448 -224
WIRE -416 -224 -432 -224
WIRE 128 -224 -80 -224
WIRE -544 -192 -544 -224
WIRE -448 -192 -448 -224
WIRE 0 -160 -16 -160
WIRE 32 -160 0 -160
WIRE 32 -112 32 -160
WIRE -80 -96 -80 -224
WIRE 0 -96 -80 -96
WIRE -544 -80 -544 -112
WIRE -448 -80 -448 -112
WIRE 128 -80 128 -224
WIRE 128 -80 64 -80
WIRE 240 -80 128 -80
WIRE -176 -64 -304 -64
WIRE 0 -64 -176 -64
WIRE 240 -32 240 -80
WIRE -176 -16 -176 -64
WIRE 0 -16 -16 -16
WIRE 32 -16 32 -48
WIRE 32 -16 0 -16
WIRE -304 64 -304 -64
WIRE -176 96 -176 48
WIRE 240 96 240 32
WIRE 240 96 -176 96
WIRE 240 128 240 96
WIRE -176 144 -176 96
WIRE -304 256 -304 144
WIRE -176 256 -176 208
WIRE 240 256 240 208
FLAG 240 256 0
FLAG 0 -16 Vee
FLAG 0 -160 Vcc
FLAG -544 -80 0
FLAG -448 -80 0
FLAG -432 -224 Vcc
FLAG -528 -224 Vee
FLAG -304 256 0
FLAG -176 256 0
FLAG -176 -64 V1+V2
SYMBOL cap -192 -16 R0
SYMATTR InstName C1
SYMATTR Value 1uF
SYMBOL diode 256 -32 M0
SYMATTR InstName D
SYMATTR Value 1N4148
SYMBOL ind -288 160 R180
WINDOW 0 36 80 Left 2
WINDOW 3 36 40 Left 2
SYMATTR InstName L
SYMATTR Value 1H
SYMATTR SpiceLine Rser=1k
SYMBOL current 240 128 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName I0
SYMATTR Value 0.5mA
SYMBOL voltage -448 -208 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V1
SYMATTR Value 15V
SYMBOL voltage -544 -96 R180
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V2
SYMATTR Value 15V
SYMBOL cap -192 144 R0
SYMATTR InstName C2
SYMATTR Value 1uF
SYMBOL Opamps\\UniversalOpamp2 32 -80 R0
SYMATTR InstName U
TEXT -592 0 Left 2 !.tran 0 1 0 0.1m
TEXT -592 32 Left 2 !.ic V(V1+V2)=0.01