Version 4
SHEET 1 880 680
WIRE -32 -112 -112 -112
WIRE 272 -112 224 -112
WIRE 368 -112 272 -112
WIRE 496 -112 368 -112
WIRE 592 -112 496 -112
WIRE 656 -112 592 -112
WIRE 496 -32 496 -112
WIRE 272 -16 272 -112
WIRE 656 0 656 -112
WIRE 368 16 368 -112
WIRE -112 64 -112 -112
WIRE 96 80 96 -16
WIRE 496 80 496 32
WIRE 272 96 272 64
WIRE 272 96 208 96
WIRE 272 128 272 96
WIRE 592 128 592 -112
WIRE 368 160 368 96
WIRE 448 160 368 160
WIRE 96 176 96 160
WIRE 208 176 208 96
WIRE 208 176 96 176
WIRE 448 176 448 160
WIRE -112 192 -112 144
WIRE 272 192 160 192
WIRE 368 192 368 160
WIRE 368 192 272 192
WIRE 96 208 96 176
WIRE 368 208 368 192
WIRE 368 208 256 208
WIRE 368 224 368 208
WIRE 256 272 256 208
WIRE 448 272 448 256
WIRE 448 272 432 272
WIRE 496 272 496 160
WIRE 496 272 448 272
WIRE 544 272 496 272
WIRE -112 336 -112 272
WIRE -32 336 -112 336
WIRE 96 336 96 288
WIRE 96 336 -32 336
WIRE 256 336 96 336
WIRE 368 336 368 320
WIRE 368 336 256 336
WIRE 544 336 368 336
WIRE 592 336 592 192
WIRE 592 336 544 336
WIRE 656 336 656 80
WIRE 656 336 592 336
WIRE -32 352 -32 336
FLAG -32 352 0
FLAG 656 -112 OUT
FLAG -112 -112 IN
SYMBOL voltage -112 176 R0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName V1
SYMATTR Value 20V
SYMBOL voltage 96 64 R0
WINDOW 3 -168 -7 Left 2
WINDOW 123 -97 35 Left 2
WINDOW 39 0 0 Left 0
SYMATTR Value SINE(0 100u 1K)
SYMATTR Value2 AC 1
SYMATTR InstName V2
SYMBOL res 80 192 R0
SYMATTR InstName R1
SYMATTR Value 2.4k
SYMBOL res 256 -32 R0
WINDOW 0 38 14 Left 2
WINDOW 3 38 43 Left 2
SYMATTR InstName R2
SYMATTR Value 220
SYMBOL res 352 0 R0
WINDOW 3 40 63 Left 2
SYMATTR Value 560
SYMATTR InstName R3
SYMBOL res 432 160 R0
SYMATTR InstName R4
SYMATTR Value 56k
SYMBOL cap 256 128 R0
WINDOW 3 26 50 Left 2
WINDOW 0 35 15 Left 2
SYMATTR Value 220µ
SYMATTR InstName C1
SYMBOL PowerProducts\\RH117H 96 -112 R0
SYMATTR InstName U1
SYMBOL npn 432 224 M0
WINDOW 3 26 57 Left 2
SYMATTR Value BC109C
SYMATTR InstName Q1
SYMBOL diode 560 336 R180
WINDOW 0 -25 66 Left 2
WINDOW 3 38 26 Left 2
SYMATTR InstName D1
SYMATTR Value 1N4148
SYMBOL res 480 64 R0
WINDOW 0 38 16 Left 2
WINDOW 3 40 44 Left 2
SYMATTR InstName R5
SYMATTR Value 47
SYMBOL res 640 -16 R0
SYMATTR InstName R6
SYMATTR Value 20
SYMBOL cap 480 -32 R0
WINDOW 0 33 -11 Left 2
WINDOW 3 31 15 Left 2
SYMATTR InstName C2
SYMATTR Value 10µ
SYMBOL cap 576 128 R0
WINDOW 3 -41 48 Left 2
SYMATTR Value 100µ
SYMATTR InstName C3
SYMBOL cap 240 272 R0
WINDOW 0 -41 33 Left 2
WINDOW 3 -42 4 Left 2
SYMATTR InstName C4
SYMATTR Value 3.3n
SYMBOL voltage -112 48 R0
WINDOW 0 -133 54 Left 2
WINDOW 3 -386 7 Left 2
WINDOW 123 -101 84 Left 2
WINDOW 39 0 0 Left 0
SYMATTR InstName V3
SYMATTR Value PULSE(0 1 0 100n 100n 1m 10m)
SYMATTR Value2 AC 1
TEXT 120 360 Left 2 !;ac dec 100 0.01 100k
TEXT 464 360 Left 2 !.tran 0 100m 0 1u
TEXT -440 368 Left 2 !;noise V(OUT) V3 dec 100 1 100k