Version 4
SHEET 1 880 900
WIRE -1312 144 -1440 144
WIRE -1040 144 -1312 144
WIRE -960 144 -1040 144
WIRE -832 144 -912 144
WIRE -768 144 -832 144
WIRE -624 144 -688 144
WIRE -208 144 -320 144
WIRE -128 144 -208 144
WIRE 0 144 -80 144
WIRE 48 144 0 144
WIRE 192 144 128 144
WIRE -1312 176 -1312 144
WIRE -1040 192 -1040 144
WIRE -976 192 -1040 192
WIRE -832 192 -832 144
WIRE -832 192 -896 192
WIRE -208 192 -208 144
WIRE -144 192 -208 192
WIRE 0 192 0 144
WIRE 0 192 -64 192
WIRE -1488 224 -1520 224
WIRE -1472 224 -1488 224
WIRE -320 240 -320 144
WIRE -1520 256 -1520 224
WIRE -624 256 -624 144
WIRE 192 256 192 144
WIRE -1440 272 -1440 144
WIRE -1440 272 -1488 272
WIRE -1040 272 -1040 192
WIRE -832 272 -832 192
WIRE -208 272 -208 192
WIRE 0 272 0 192
WIRE -1552 288 -1600 288
WIRE -1312 288 -1312 256
WIRE -1152 288 -1312 288
WIRE -1440 304 -1488 304
WIRE -1312 320 -1312 288
WIRE -1520 352 -1520 320
WIRE -1488 352 -1520 352
WIRE -1472 352 -1488 352
WIRE -1440 432 -1440 304
WIRE -1312 432 -1312 400
WIRE -1312 432 -1440 432
WIRE -1040 432 -1040 336
WIRE -832 432 -832 336
WIRE -624 432 -624 336
WIRE -320 432 -320 320
WIRE -208 432 -208 336
WIRE 0 432 0 336
WIRE 192 432 192 336
WIRE -1440 464 -1440 432
WIRE -1264 512 -1280 512
WIRE -1232 512 -1264 512
WIRE -784 512 -800 512
WIRE -768 512 -784 512
WIRE -688 512 -704 512
WIRE -672 512 -688 512
WIRE -1232 528 -1232 512
WIRE -1312 544 -1312 432
WIRE -1264 544 -1312 544
WIRE -800 544 -800 512
WIRE -704 544 -704 512
WIRE -1152 560 -1152 288
WIRE -1152 560 -1200 560
WIRE -1600 576 -1600 288
WIRE -1440 576 -1440 544
WIRE -1440 576 -1600 576
WIRE -1264 576 -1312 576
WIRE -1440 608 -1440 576
WIRE -1264 624 -1280 624
WIRE -1232 624 -1232 592
WIRE -1232 624 -1264 624
WIRE -800 656 -800 624
WIRE -704 656 -704 624
WIRE -1440 704 -1440 672
WIRE -1376 704 -1440 704
WIRE -1312 704 -1312 576
WIRE -1312 704 -1376 704
WIRE -1376 736 -1376 704
WIRE -1376 832 -1376 816
FLAG -208 432 0
FLAG 192 432 0
FLAG 0 432 0
FLAG -320 432 0
FLAG -1040 432 0
FLAG -624 432 0
FLAG -832 432 0
FLAG -1264 624 Vee
FLAG -1264 512 Vcc
FLAG -1488 224 Vee
FLAG -1488 352 Vcc
FLAG -1376 832 0
FLAG -800 656 0
FLAG -704 656 0
FLAG -688 512 Vcc
FLAG -784 512 Vee
FLAG -208 144 V1
FLAG 0 144 V2
FLAG -832 144 V2.
FLAG -1040 144 V1.
SYMBOL sw -160 192 M90
SYMATTR InstName S
SYMATTR Value SBS
SYMBOL res 144 128 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R
SYMATTR Value 100k
SYMBOL voltage 192 240 R0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName V
SYMATTR Value 5V
SYMBOL cap 16 272 M0
SYMATTR InstName C2
SYMATTR Value 0.1uF
SYMBOL ind -304 224 M0
SYMATTR InstName L
SYMATTR Value 1mH
SYMATTR SpiceLine Rser=0.01
SYMBOL cap -192 272 M0
SYMATTR InstName C1
SYMATTR Value 1uF
SYMBOL sw -992 192 M90
SYMATTR InstName S.
SYMATTR Value SBS
SYMBOL res -672 128 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R.
SYMATTR Value 100k
SYMBOL voltage -624 240 R0
SYMATTR InstName V.
SYMATTR Value 5V
SYMBOL cap -816 272 M0
SYMATTR InstName C2.
SYMATTR Value 0.1uF
SYMBOL cap -1024 272 M0
SYMATTR InstName C1.
SYMATTR Value 1uF
SYMBOL res -1296 272 R180
WINDOW 0 36 76 Left 2
WINDOW 3 36 40 Left 2
SYMATTR InstName R1
SYMATTR Value 1k
SYMBOL res -1296 416 R180
WINDOW 0 36 76 Left 2
WINDOW 3 36 40 Left 2
SYMATTR InstName R2
SYMATTR Value 1k
SYMBOL res -1424 560 R180
WINDOW 0 36 76 Left 2
WINDOW 3 36 40 Left 2
SYMATTR InstName R3
SYMATTR Value 1k
SYMBOL cap -1456 608 R0
SYMATTR InstName C
SYMATTR Value 1nF
SYMBOL res -1392 720 R0
SYMATTR InstName R4
SYMATTR Value 1k
SYMBOL voltage -704 528 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V2
SYMATTR Value 15V
SYMBOL voltage -800 640 R180
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V3
SYMATTR Value 15V
SYMBOL Opamps\\UniversalOpamp2 -1520 288 R180
SYMATTR InstName U3
SYMBOL Opamps\\UniversalOpamp2 -1232 560 R0
SYMATTR InstName U4
TEXT -400 480 Left 2 !.model SBS SW(Ron=1 Roff=1Meg Vt=1.15 Vh=1.15)
TEXT -400 504 Left 2 !.tran 0 1 500m 0.01m
TEXT -400 536 Left 2 !.ic V(V1)=0.1
TEXT -400 568 Left 2 !.ic V(V1.)=0.1