Version 4
SHEET 1 880 836
WIRE -112 -416 -368 -416
WIRE 112 -416 -112 -416
WIRE 336 -416 112 -416
WIRE -112 -368 -112 -416
WIRE 112 -368 112 -416
WIRE 336 -368 336 -416
WIRE -368 -224 -368 -416
WIRE -160 -224 -272 -224
WIRE -112 -224 -112 -288
WIRE -112 -224 -160 -224
WIRE 64 -224 -48 -224
WIRE 112 -224 112 -288
WIRE 112 -224 64 -224
WIRE 288 -224 176 -224
WIRE 336 -224 336 -288
WIRE 336 -224 288 -224
WIRE -272 -160 -272 -224
WIRE -160 -160 -160 -224
WIRE -48 -160 -48 -224
WIRE 64 -160 64 -224
WIRE 176 -160 176 -224
WIRE 288 -160 288 -224
WIRE -112 -144 -112 -224
WIRE 112 -144 112 -224
WIRE 336 -144 336 -224
WIRE -368 -16 -368 -144
WIRE -160 0 -160 -80
WIRE -112 0 -112 -96
WIRE -112 0 -160 0
WIRE 64 0 64 -80
WIRE 112 0 112 -96
WIRE 112 0 64 0
WIRE 288 0 288 -80
WIRE 336 0 336 -96
WIRE 336 0 288 0
WIRE -160 16 -160 0
WIRE 64 16 64 0
WIRE 288 16 288 0
WIRE -272 96 -272 -96
WIRE -48 96 -48 -96
WIRE -48 96 -272 96
WIRE 176 96 176 -96
WIRE 176 96 -48 96
FLAG -160 16 0
FLAG -368 -16 0
FLAG 64 16 0
FLAG 288 16 0
SYMBOL sw -160 -64 R180
SYMATTR InstName S1
SYMATTR Value SBS
SYMBOL voltage -368 -240 M0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName V
SYMATTR Value 22V
SYMBOL sw 64 -64 R180
SYMATTR InstName S2
SYMATTR Value SBS
SYMBOL sw 288 -64 R180
SYMATTR InstName S3
SYMATTR Value SBS
SYMBOL res -128 -384 R0
SYMATTR InstName R1
SYMATTR Value 1k
SYMBOL res 96 -384 R0
SYMATTR InstName R2
SYMATTR Value 2k
SYMBOL res 320 -384 R0
SYMATTR InstName R3
SYMATTR Value 5k
SYMBOL cap -288 -160 R0
SYMATTR InstName C1
SYMATTR Value 1uF
SYMBOL cap -64 -160 R0
SYMATTR InstName C2
SYMATTR Value 2uF
SYMBOL cap 160 -160 R0
SYMATTR InstName C3
SYMATTR Value 3uF
TEXT -376 144 Left 2 !.model SBS SW(Ron=1 Roff=1Meg Vt=2 Vh=2)
TEXT -376 168 Left 2 !.tran 0 50m 0 0.001m
TEXT -376 120 Left 2 !.ic V(n002)=0.1