Version 4
SHEET 1 880 1028
WIRE 48 -64 -48 -64
WIRE 192 -64 48 -64
WIRE 48 -48 48 -64
WIRE 192 -32 192 -64
WIRE 192 -32 96 -32
WIRE 288 -32 192 -32
WIRE 96 -16 96 -32
WIRE 288 -16 288 -32
WIRE -48 48 -48 -64
WIRE 96 96 96 64
WIRE 128 96 96 96
WIRE 160 96 128 96
WIRE 256 96 240 96
WIRE 288 96 288 64
WIRE 288 96 256 96
WIRE 96 128 96 96
WIRE 288 128 288 96
WIRE 288 208 288 192
WIRE 96 304 96 192
WIRE 192 304 96 304
WIRE 256 304 192 304
WIRE 288 304 288 288
WIRE 288 304 256 304
WIRE -48 336 -48 128
WIRE 192 336 192 304
WIRE 192 336 -48 336
WIRE 16 416 -64 416
WIRE -64 432 -64 416
WIRE -64 528 -64 512
WIRE 176 592 -64 592
WIRE 176 624 176 592
WIRE 176 624 80 624
WIRE 272 624 176 624
WIRE 80 640 80 624
WIRE 272 640 272 624
WIRE -64 704 -64 592
WIRE 80 752 80 720
WIRE 112 752 80 752
WIRE 144 752 112 752
WIRE 240 752 224 752
WIRE 272 752 272 720
WIRE 272 752 240 752
WIRE 80 784 80 752
WIRE 272 784 272 752
WIRE 272 864 272 848
WIRE 80 960 80 848
WIRE 176 960 80 960
WIRE 272 960 272 944
WIRE 272 960 176 960
WIRE -64 992 -64 784
WIRE 32 992 -64 992
WIRE 176 992 176 960
WIRE 176 992 32 992
WIRE 32 1008 32 992
FLAG 16 416 Test
IOPIN 16 416 Out
FLAG -64 528 0
FLAG 48 -48 0
FLAG 32 1008 0
FLAG 256 96 a
FLAG 256 304 b
FLAG 240 752 c
FLAG 176 592 d
FLAG 128 96 a1
FLAG 112 752 c1
SYMBOL cap 272 128 R0
SYMATTR InstName C1
SYMATTR Value Q={C0}*(0.9+V(test))*x
SYMBOL cap 80 128 R0
SYMATTR InstName C2
SYMATTR Value {C0}
SYMBOL res 80 -32 R0
SYMATTR InstName R1
SYMATTR Value 1k
SYMBOL res 272 -32 R0
SYMATTR InstName R2
SYMATTR Value 1k
SYMBOL Misc\\signal -48 32 R0
WINDOW 3 -7 109 Right 2
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR Value SINE(0 1 5k)
SYMATTR InstName V2
SYMBOL voltage -64 416 M0
WINDOW 0 -38 32 Bottom 2
WINDOW 3 -129 80 Top 2
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName V3
SYMATTR Value PWL(0 0 10m 0.2)
SYMBOL cap 256 784 R0
SYMATTR InstName C3
SYMATTR Value Q={C0}*(0.9+V(test))*x
SYMBOL cap 64 784 R0
SYMATTR InstName C4
SYMATTR Value {C0}
SYMBOL res 64 624 R0
SYMATTR InstName R3
SYMATTR Value 1k
SYMBOL res 256 624 R0
SYMATTR InstName R4
SYMATTR Value 1k
SYMBOL Misc\\signal -64 688 R0
WINDOW 3 -7 109 Right 2
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR Value SINE(0 1 5k)
SYMATTR InstName V5
SYMBOL voltage 144 96 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 -32 56 VBottom 2
SYMATTR InstName V1
SYMATTR Value 0
SYMBOL voltage 128 752 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 -32 56 VBottom 2
SYMATTR InstName V4
SYMATTR Value 0
SYMBOL res 256 848 R0
SYMATTR InstName R5
SYMATTR Value 1u
SYMBOL res 272 192 R0
SYMATTR InstName R6
SYMATTR Value 1u
TEXT -160 -168 Left 2 !.tran 0 10m 0 1u
TEXT -160 -128 Left 2 !.options plotwinsize=0
TEXT 256 -176 Left 2 !.param C0=1n