Version 4
SHEET 1 1152 680
WIRE 976 -304 -784 -304
WIRE -288 -144 -336 -144
WIRE -176 -144 -224 -144
WIRE -32 -128 -64 -128
WIRE 80 -128 48 -128
WIRE -288 -48 -336 -48
WIRE -176 -48 -176 -144
WIRE -176 -48 -208 -48
WIRE -128 -48 -176 -48
WIRE 80 -48 -128 -48
WIRE 576 -48 528 -48
WIRE 976 -48 976 -304
WIRE 976 -48 656 -48
WIRE -784 32 -784 -304
WIRE -784 32 -1360 32
WIRE -672 32 -784 32
WIRE 80 32 -672 32
WIRE 544 32 528 32
WIRE -1360 48 -1360 32
WIRE 80 112 48 112
WIRE 976 128 976 -48
WIRE -1360 144 -1360 128
WIRE -672 224 -672 32
WIRE 736 272 528 272
WIRE 848 272 816 272
WIRE -784 288 -784 32
WIRE -672 352 -672 304
WIRE 80 352 -672 352
WIRE 976 352 976 208
WIRE 976 352 528 352
WIRE -784 432 -784 368
WIRE 80 432 -784 432
FLAG 48 112 0
FLAG -128 -48 OUT
FLAG -1360 144 0
FLAG -64 -128 0
FLAG -336 -48 0
FLAG 848 272 0
FLAG -336 -144 0
FLAG -1360 32 IN
SYMBOL VOLTAGE -1360 32 R0
WINDOW 123 24 117 Left 2
SYMATTR Value PWL(0 0 25u 5 0.23 5 +50u 2 +25m 2 +50u 5)
SYMATTR InstName V1
SYMATTR SpiceLine Rser=10m
SYMBOL VOLTAGE 64 -128 R90
WINDOW 123 53 56 VTop 2
WINDOW 0 -32 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName V2
SYMATTR Value 3
SYMATTR SpiceLine Rser=10m
SYMBOL res 672 -64 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R1
SYMATTR Value 10K
SYMBOL res 960 112 R0
SYMATTR InstName R2
SYMATTR Value 10K
SYMBOL VOLTAGE 720 272 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)
SYMATTR SpiceLine Rser=0.1
SYMBOL LTC1235 304 160 R0
SYMATTR InstName U1
SYMBOL res -800 272 R0
SYMATTR InstName R3
SYMATTR Value 10K
SYMBOL voltage -672 208 R0
WINDOW 123 24 138 Left 2
WINDOW 39 24 117 Left 2
SYMATTR InstName V4
SYMATTR Value PWL(0 0 0.5 0 +1u 5 +9m 5 +1u 0 0.7 0 +1u 5 +43m 5 +1u 0)
SYMBOL cap -224 -160 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C1
SYMATTR Value 0.22µ
SYMBOL res -192 -64 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName Rload
SYMATTR Value 1K
TEXT 792 456 Left 2 !.tran 1