Version 4
SHEET 1 880 680
WIRE 128 -80 112 -80
WIRE 112 -48 112 -80
WIRE 272 -48 112 -48
WIRE 416 -48 272 -48
WIRE 112 -16 112 -48
WIRE 272 -16 272 -48
WIRE 416 -16 416 -48
WIRE 112 96 112 64
WIRE 272 96 272 48
WIRE 272 96 112 96
WIRE 416 96 416 64
WIRE 416 96 272 96
WIRE 112 112 112 96
WIRE 224 192 192 192
WIRE 352 192 304 192
WIRE 432 192 352 192
WIRE 352 224 352 192
WIRE 432 224 432 192
WIRE 128 304 112 304
WIRE 112 320 112 304
WIRE 352 336 352 288
WIRE 352 336 192 336
WIRE 432 336 432 304
WIRE 432 336 352 336
WIRE 192 352 192 336
FLAG 112 112 0
FLAG 112 -80 temp
FLAG 192 192 temp
IOPIN 192 192 In
FLAG 192 352 0
FLAG 240 240 0
FLAG 112 400 0
FLAG 112 304 CTRL
FLAG 288 240 CTRL
IOPIN 288 240 In
FLAG 432 192 temp2
SYMBOL current 112 64 R180
WINDOW 0 24 88 Left 0
WINDOW 3 24 0 Left 0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName I1
SYMATTR Value 1
SYMBOL cap 256 -16 R0
SYMATTR InstName C1
SYMATTR Value 1
SYMBOL res 400 -32 R0
SYMATTR InstName R1
SYMATTR Value 1
SYMBOL cap 336 224 R0
SYMATTR InstName C2
SYMATTR Value 0.1
SYMBOL res 416 208 R0
SYMATTR InstName R2
SYMATTR Value 10
SYMBOL sw 208 192 R270
SYMATTR InstName S1
SYMBOL voltage 112 304 R0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName V1
SYMATTR Value PULSE(0V 1V 2s 0 0 0.5s 1s)
TEXT 472 408 Left 0 !.tran 0 10s 0
TEXT 472 384 Left 0 !.ic V(temp2) 0
TEXT 472 360 Left 0 !.model SW SW(Vt=0.5)