Version 4
SHEET 1 1056 680
WIRE 128 128 80 128
WIRE 240 128 208 128
WIRE 336 128 304 128
WIRE 368 128 336 128
WIRE 464 128 448 128
WIRE 480 128 464 128
WIRE 608 128 560 128
WIRE 80 160 80 128
WIRE 336 160 336 128
WIRE 464 160 464 128
WIRE 608 160 608 128
WIRE 336 256 336 240
WIRE 464 256 464 224
WIRE 80 272 80 240
WIRE 608 272 608 240
WIRE 336 368 336 320
FLAG 336 368 0
FLAG 80 272 0
FLAG 608 272 0
FLAG 464 256 0
SYMBOL res 224 112 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R1
SYMATTR Value 50
SYMBOL Misc\\signal 80 144 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V1
SYMATTR Value SINE(0 1 3Meg)
SYMBOL cap 304 112 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C1
SYMATTR Value 10n
SYMBOL ind 352 144 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 5 56 VBottom 2
SYMATTR InstName L1
SYMATTR Value 50µ
SYMBOL voltage 608 144 R0
WINDOW 123 0 0 Left 2
WINDOW 39 24 124 Left 2
SYMATTR SpiceLine Rser=1
SYMATTR InstName V2
SYMATTR Value 5V
SYMBOL res 576 112 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R2
SYMATTR Value {X}
SYMBOL res 320 144 R0
SYMATTR InstName R3
SYMATTR Value 50
SYMBOL diode 320 256 R0
SYMATTR InstName D1
SYMATTR Value 1N4007
SYMBOL cap 448 160 R0
SYMATTR InstName C2
SYMATTR Value 100n
TEXT 48 296 Left 2 !.tran 0 1u 0 1n
TEXT 120 56 Left 2 !.step param X list 100 500 1k 5k 10k 50k 100k