Version 4
SHEET 1 1276 680
WIRE 224 144 192 144
WIRE 336 144 304 144
WIRE 192 192 192 144
WIRE 336 192 336 144
WIRE 144 208 -64 208
WIRE -64 256 -64 208
WIRE 144 256 112 256
WIRE 192 304 192 272
WIRE 336 304 336 272
WIRE -64 368 -64 336
FLAG 336 304 0
FLAG 192 304 0
FLAG 112 256 0
FLAG -64 368 0
SYMBOL sw 192 288 M180
WINDOW 0 12 104 Left 2
WINDOW 3 17 11 Left 2
SYMATTR InstName S1
SYMATTR Value MYSW
SYMBOL voltage -64 240 R0
WINDOW 3 13 107 Left 2
SYMATTR Value PULSE(0 1 0 .5m .5m 0 1m)
SYMATTR InstName V1
SYMBOL voltage 336 176 R0
SYMATTR InstName V2
SYMATTR Value 3.3
SYMBOL res 320 128 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R1
SYMATTR Value 1K
TEXT -80 448 Left 2 !.model MYSW SW(Ron=1 Roff=1Meg Vt=.5 Vh=-.4)
TEXT -80 416 Left 2 !.tran 3m
TEXT 160 496 Top 1 ;This example schematic is supplied for informational/educational purposes only.
TEXT 176 80 Bottom 2 ;This shows an example of suppling a .model statement as a SPICE\ndirective directly on the schematic to define a voltage controlled switch.