Version 4
SHEET 1 1420 680
WIRE 992 -160 -336 -160
WIRE -288 -64 -304 -64
WIRE -176 -64 -208 -64
WIRE -144 -64 -176 -64
WIRE 240 -64 208 -64
WIRE 352 -64 320 -64
WIRE 992 -16 992 -160
WIRE -672 32 -960 32
WIRE -640 32 -672 32
WIRE -336 32 -336 -160
WIRE -336 32 -384 32
WIRE -144 32 -336 32
WIRE 240 32 208 32
WIRE -960 48 -960 32
WIRE -336 48 -336 32
WIRE -672 128 -672 32
WIRE -336 128 -336 112
WIRE -144 128 -160 128
WIRE 368 128 208 128
WIRE 752 128 448 128
WIRE 864 128 832 128
WIRE -960 144 -960 128
WIRE -512 160 -512 128
WIRE -672 224 -672 208
WIRE -144 224 -672 224
WIRE 992 224 992 64
WIRE 992 224 208 224
WIRE -672 240 -672 224
WIRE -672 336 -672 320
FLAG -160 128 0
FLAG -176 -64 OUT
FLAG -960 144 0
FLAG -336 128 0
FLAG -512 160 0
FLAG -960 32 IN
FLAG 352 -64 0
FLAG -304 -64 0
FLAG -672 336 0
FLAG 240 32 _Reset
FLAG 864 128 0
SYMBOL LTC690 32 96 R0
SYMATTR InstName U1
SYMBOL VOLTAGE -960 32 R0
SYMATTR Value PWL(20u 0 25u 7.5)
SYMATTR InstName V1
SYMATTR SpiceLine Rser=10m
SYMBOL cap -352 48 R0
SYMATTR InstName C1
SYMATTR Value 100µ
SYMBOL PowerProducts\\LT1086-5 -512 32 R0
SYMATTR InstName U2
SYMBOL VOLTAGE 224 -64 R270
WINDOW 123 -53 56 VBottom 2
WINDOW 0 32 56 VTop 2
WINDOW 3 -32 56 VBottom 2
SYMATTR InstName V2
SYMATTR Value 3
SYMATTR SpiceLine Rser=10m
SYMBOL res -688 112 R0
SYMATTR InstName R1
SYMATTR Value 51K
SYMBOL res -688 224 R0
SYMATTR InstName R2
SYMATTR Value 10K
SYMBOL res 976 -32 R0
SYMATTR InstName R3
SYMATTR Value 10K
SYMBOL VOLTAGE 352 128 R270
WINDOW 123 -53 56 VBottom 2
WINDOW 0 32 56 VTop 2
WINDOW 3 -32 56 VBottom 2
SYMATTR InstName V3
SYMATTR Value PULSE(0 2 0 1u 1u 20m 40m 6)
SYMATTR SpiceLine Rser=0.1
SYMBOL VOLTAGE 736 128 R270
WINDOW 123 -53 56 VBottom 2
WINDOW 0 32 56 VTop 2
WINDOW 3 -32 56 VBottom 2
SYMATTR InstName V4
SYMATTR Value PULSE(0 2 0.4 1u 1u 20m 40m)
SYMATTR SpiceLine Rser=0.1
SYMBOL res -192 -80 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName Rload
SYMATTR Value 100
TEXT 456 376 Left 2 !.tran 0.5