Version 4
SHEET 1 1440 680
WIRE 560 -32 480 -32
WIRE 672 -32 624 -32
WIRE 416 32 336 32
WIRE 528 32 416 32
WIRE 560 32 528 32
WIRE 672 32 672 -32
WIRE 672 32 624 32
WIRE 720 32 672 32
WIRE 896 32 720 32
WIRE 944 32 896 32
WIRE 1088 32 1024 32
WIRE 1296 32 1088 32
WIRE 1344 32 1296 32
WIRE 1088 80 1088 32
WIRE 336 96 336 32
WIRE 1296 96 1296 32
WIRE 896 112 896 32
WIRE 528 176 528 32
WIRE 560 176 528 176
WIRE 656 176 624 176
WIRE 896 192 896 176
WIRE 1296 192 1296 176
WIRE 336 240 336 176
WIRE 416 240 336 240
WIRE 480 240 480 -32
WIRE 480 240 416 240
WIRE 560 240 480 240
WIRE 656 240 656 176
WIRE 656 240 624 240
WIRE 1088 256 1088 240
WIRE 656 272 656 240
FLAG 896 192 0
FLAG 1296 192 0
FLAG 1344 32 out
IOPIN 1344 32 Out
FLAG 656 272 0
FLAG 416 32 ac1
FLAG 416 240 ac2
FLAG 720 32 vp
FLAG 1088 256 0
SYMBOL voltage 336 80 R0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
WINDOW 3 -58 183 VLeft 2
SYMATTR InstName Vac
SYMATTR Value SIN(0 {10*sqrt(2)} 50)
SYMBOL cap 880 112 R0
WINDOW 0 -34 6 Left 2
WINDOW 3 -80 55 Left 2
SYMATTR InstName Cf
SYMATTR Value 2200µF
SYMBOL diode 624 224 R90
WINDOW 0 70 48 VBottom 2
WINDOW 3 43 9 VTop 2
SYMATTR InstName D1
SYMATTR Value dd
SYMBOL diode 624 160 R90
WINDOW 0 0 43 VBottom 2
WINDOW 3 -29 5 VTop 2
SYMATTR InstName D2
SYMATTR Value dd
SYMBOL diode 560 48 R270
WINDOW 0 -30 20 VTop 2
WINDOW 3 -3 58 VBottom 2
SYMATTR InstName D3
SYMATTR Value dd
SYMBOL diode 560 -16 R270
WINDOW 0 -30 17 VTop 2
WINDOW 3 -1 60 VBottom 2
SYMATTR InstName D4
SYMATTR Value dd
SYMBOL res 1040 16 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R1
SYMATTR Value 47
SYMBOL res 1280 80 R0
SYMATTR InstName R0
SYMATTR Value 88
SYMBOL voltage 1088 64 R0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName Vz
SYMATTR Value 8
SYMBOL res 1072 144 R0
SYMATTR InstName rz
SYMATTR Value 1
TEXT 768 416 Left 2 !.param amp=10\n*.step param amp list 1 3 10
TEXT 768 384 Left 2 !.tran .2m 60m 0 .2m
TEXT 768 328 Left 2 !.model Zener_9V D rs=1 bv=8.4\n.model dd d is=1e-12