Version 4
SHEET 1 1408 980
WIRE 0 -144 -16 -144
WIRE 176 -144 80 -144
WIRE 336 -144 224 -144
WIRE 432 -144 416 -144
WIRE 0 -32 -16 -32
WIRE 144 -32 80 -32
WIRE 144 64 144 -32
WIRE 176 64 176 -144
WIRE 224 64 224 -144
WIRE 96 144 -96 144
WIRE 400 144 288 144
WIRE 848 144 400 144
WIRE 880 144 848 144
WIRE 928 144 880 144
WIRE 400 160 400 144
WIRE 16 192 -32 192
WIRE 96 192 16 192
WIRE 320 192 288 192
WIRE 928 192 928 144
WIRE 320 224 320 192
WIRE 400 272 400 240
WIRE 400 352 400 336
WIRE -32 384 -32 192
WIRE -32 384 -176 384
WIRE 0 384 -32 384
WIRE 0 432 0 384
WIRE -176 448 -176 384
WIRE 848 480 848 144
WIRE 0 608 0 512
WIRE 400 608 0 608
WIRE 544 608 400 608
WIRE 848 608 848 560
WIRE 848 608 736 608
WIRE 400 640 400 608
WIRE 544 704 512 704
WIRE 848 704 736 704
WIRE 0 720 0 608
WIRE 512 736 512 704
WIRE -176 752 -176 512
WIRE 848 752 848 704
WIRE 0 848 0 800
WIRE 848 848 848 816
WIRE -176 960 -176 832
WIRE 0 960 0 928
FLAG -96 224 0
FLAG 16 192 FB
FLAG 320 224 0
FLAG 400 352 0
FLAG 928 272 0
FLAG 880 144 vout
FLAG 0 960 0
FLAG -176 960 0
FLAG 400 704 0
FLAG 512 736 0
FLAG 848 848 0
FLAG -16 -32 0
FLAG -16 -144 0
FLAG 432 -144 0
SYMBOL FlybackQR 192 160 R0
WINDOW 39 -14 178 Center 2
SYMATTR SpiceLine LP=707u N=0.083 RLF=0.5 RS=0.3
SYMATTR InstName U1
SYMATTR Description High Density Mounting Type Photocoupler
SYMBOL voltage -96 128 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V1
SYMATTR Value 120
SYMBOL res 384 144 R0
SYMATTR InstName R1
SYMATTR Value 90m
SYMBOL cap 384 272 R0
SYMATTR InstName C1
SYMATTR Value 1800u
SYMBOL res 912 176 R0
SYMATTR InstName R4
SYMATTR Value 8.5
SYMBOL ind 16 416 M0
SYMATTR InstName L2
SYMATTR Value 1k
SYMBOL cap -192 448 R0
SYMATTR InstName C3
SYMATTR Value 1k
SYMBOL voltage -176 736 R0
WINDOW 123 24 124 Left 2
WINDOW 39 0 0 Left 2
SYMATTR Value2 AC 1
SYMATTR InstName V2
SYMATTR Value ""
SYMBOL voltage 0 832 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V3
SYMATTR Value 4.8
SYMBOL res -16 704 R0
SYMATTR InstName R5
SYMATTR Value 20k
SYMBOL Optos\\PC817A 640 656 M0
SYMATTR InstName U2
SYMBOL cap 384 640 R0
SYMATTR InstName C4
SYMATTR Value 1n
SYMBOL zener 864 816 R180
WINDOW 0 24 64 Left 2
WINDOW 3 24 0 Left 2
SYMATTR InstName D1
SYMATTR Value DNAC
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL res 832 464 R0
SYMATTR InstName R6
SYMATTR Value 1k
SYMBOL res 96 -48 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R7
SYMATTR Value 100k
SYMBOL res 96 -160 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R8
SYMATTR Value 100k
SYMBOL res 320 -160 M90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R9
SYMATTR Value 100k
TEXT 88 296 Left 2 !.ac dec 10 1 100k
TEXT -320 -128 Left 2 !.ic V(vout)=15
TEXT -320 -88 Left 2 !.model dnac D(Bv=10)