Version 4
SHEET 1 880 680
WIRE 96 192 96 176
WIRE 96 224 96 192
WIRE 464 272 464 224
WIRE 368 352 368 80
WIRE 416 352 368 352
WIRE 464 432 464 368
WIRE 464 432 368 432
WIRE 464 464 464 432
FLAG 96 192 0
FLAG 96 96 TTL
FLAG 96 304 -15V
FLAG 464 144 0
FLAG 464 464 -15V
FLAG 368 -16 TTL
FLAG 512 32 0
SYMBOL voltage 96 80 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V1
SYMATTR Value SINE(2.5 2.5 50)
SYMBOL voltage 96 208 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V2
SYMATTR Value 15
SYMBOL res 448 128 R0
SYMATTR InstName R1
SYMATTR Value 1k
SYMBOL res 352 336 R0
SYMATTR InstName R2
SYMATTR Value 10k
SYMBOL nmos 416 272 R0
SYMATTR InstName M2
SYMATTR Value FDS8962C_N
SYMBOL pnp 432 80 R180
SYMATTR InstName Q1
SYMBOL res 528 16 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R3
SYMATTR Value 10k
TEXT 62 570 Left 2 !.tran 20ms