Version 4
SHEET 1 880 680
WIRE -272 80 -384 80
WIRE 16 80 -272 80
WIRE 176 80 16 80
WIRE 176 112 176 80
WIRE -384 128 -384 80
WIRE -272 128 -272 80
WIRE 16 224 16 80
WIRE 48 224 16 224
WIRE 368 224 304 224
WIRE 464 224 368 224
WIRE 464 240 464 224
WIRE -384 256 -384 192
WIRE -272 256 -272 208
WIRE 368 256 368 224
WIRE 176 352 176 336
WIRE 368 352 368 320
WIRE 464 352 464 320
WIRE 176 448 176 432
FLAG 176 448 0
FLAG -272 256 0
FLAG 464 352 0
FLAG 368 352 0
FLAG -384 256 0
SYMBOL res 160 336 R0
SYMATTR InstName R1
SYMATTR Value 20k
SYMBOL voltage -272 112 R0
WINDOW 123 0 0 Left 2
WINDOW 39 24 132 Left 2
SYMATTR SpiceLine Rser=5m
SYMATTR InstName V1
SYMATTR Value PWL(1u 0 1.1u 4.5)
SYMBOL res 448 224 R0
SYMATTR InstName R2
SYMATTR Value 0.33
SYMBOL cap 352 256 R0
SYMATTR InstName C1
SYMATTR Value 10µ
SYMBOL cap -400 128 R0
SYMATTR InstName C2
SYMATTR Value 200µ
SYMBOL LT3083 176 224 R0
SYMATTR InstName U2
TEXT 488 440 Left 2 !.tran 50u startup