Version 4
SHEET 1 880 1096
WIRE -144 -112 -176 -112
WIRE 112 -112 -144 -112
WIRE 288 -112 112 -112
WIRE 512 -112 384 -112
WIRE 656 -112 512 -112
WIRE 688 -112 656 -112
WIRE 112 192 112 -112
WIRE 512 192 512 -112
WIRE -176 272 -176 -112
WIRE 688 320 688 -112
WIRE 112 336 112 272
WIRE 192 336 112 336
WIRE 304 336 304 -64
WIRE 304 336 192 336
WIRE 64 432 -32 432
WIRE 304 432 304 336
WIRE -32 464 -32 432
WIRE 112 464 112 336
WIRE 64 480 64 432
WIRE 512 480 512 272
WIRE 512 480 352 480
WIRE 512 544 512 480
WIRE -32 576 -32 544
WIRE 64 576 64 528
WIRE 64 576 -32 576
WIRE -176 688 -176 352
WIRE -32 688 -32 576
WIRE -32 688 -176 688
WIRE 112 688 112 544
WIRE 112 688 -32 688
WIRE 304 688 304 528
WIRE 304 688 112 688
WIRE 512 688 512 624
WIRE 512 688 304 688
WIRE 688 688 688 400
WIRE 688 688 512 688
WIRE 304 752 304 688
FLAG 304 752 0
FLAG 192 336 G
FLAG 656 -112 U_last
FLAG -144 -112 U_in
SYMBOL pmos 384 -64 M270
SYMATTR InstName M1
SYMATTR Value IRF7204
SYMBOL Misc\\EuropeanResistor 96 176 R0
SYMATTR InstName R1
SYMATTR Value 22K
SYMBOL sw 112 560 M180
SYMATTR InstName S1
SYMBOL voltage -32 448 R0
WINDOW 0 32 56 VTop 2
WINDOW 3 -53 78 VBottom 2
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V1
SYMATTR Value PULSE(-1 1 0 0 0 1 10 1)
SYMBOL res 672 304 R0
SYMATTR InstName R2
SYMATTR Value 220R
SYMBOL voltage -176 256 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
WINDOW 3 -21 510 Left 2
SYMATTR Value PULSE(0 15 0 1m 9s 1m 10 1)
SYMATTR InstName V2
SYMBOL Misc\\EuropeanResistor 496 176 R0
SYMATTR InstName R3
SYMATTR Value 10K
SYMBOL Misc\\EuropeanResistor 496 528 R0
SYMATTR InstName R4
SYMATTR Value 4K7
SYMBOL References\\TL431 304 480 M0
SYMATTR InstName U1
TEXT -192 800 Left 2 !.model sw sw()
TEXT -192 840 Left 2 !.tran 0 10s 0 1m
TEXT 776 360 Left 2 ;Last
TEXT -48 376 Left 2 ;Reset_Taster