Version 4
SHEET 1 3928 680
WIRE 1984 -512 1808 -512
WIRE 2320 -512 1984 -512
WIRE 2400 -512 2320 -512
WIRE 3456 -512 3088 -512
WIRE 2400 -464 2400 -512
WIRE 2320 -400 2320 -512
WIRE 2400 -384 2400 -400
WIRE 2256 -352 2192 -352
WIRE 3088 -352 3088 -512
WIRE 3680 -352 3664 -352
WIRE 3776 -352 3744 -352
WIRE 3920 -352 3856 -352
WIRE 1984 -336 1984 -512
WIRE 1808 -304 1808 -512
WIRE 2192 -304 2192 -352
WIRE 2128 -256 2080 -256
WIRE 3088 -256 3088 -272
WIRE 3456 -240 3456 -512
WIRE 3664 -240 3664 -352
WIRE 3680 -240 3664 -240
WIRE 3776 -240 3744 -240
WIRE 3920 -240 3920 -352
WIRE 3920 -240 3856 -240
WIRE 2192 -176 2192 -208
WIRE 2320 -176 2320 -304
WIRE 2320 -176 2192 -176
WIRE 2400 -176 2320 -176
WIRE 2528 -176 2480 -176
WIRE 3040 -176 2608 -176
WIRE 3920 -160 3920 -240
WIRE 1008 -128 752 -128
WIRE 1296 -128 1088 -128
WIRE 1984 -128 1984 -256
WIRE 1984 -128 1664 -128
WIRE 2080 -128 2080 -256
WIRE 2080 -128 1984 -128
WIRE 2192 -112 2192 -176
WIRE 752 -80 752 -128
WIRE 1296 -64 1296 -128
WIRE 1344 -64 1296 -64
WIRE 1664 -64 1664 -128
WIRE 1664 -64 1536 -64
WIRE 2080 -64 2080 -128
WIRE 2128 -64 2080 -64
WIRE 2320 -16 2320 -176
WIRE 1344 32 1296 32
WIRE 1664 32 1536 32
WIRE 2192 32 2192 -16
WIRE 2256 32 2192 32
WIRE 752 128 752 0
WIRE 1296 128 1296 32
WIRE 1296 128 752 128
WIRE 1664 128 1664 32
WIRE 1808 128 1808 -224
WIRE 1808 128 1664 128
WIRE 2320 128 2320 80
WIRE 2320 128 1808 128
WIRE 2480 128 2320 128
WIRE 3088 128 3088 -160
WIRE 3088 128 2560 128
WIRE 3456 128 3456 -160
WIRE 3456 128 3088 128
WIRE 2320 144 2320 128
WIRE 1296 160 1296 128
FLAG 2320 144 0
FLAG 1296 160 0
FLAG 2400 -384 0
SYMBOL voltage 752 -96 R0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName V3
SYMATTR Value PULSE(0 10 1m 1n 1n 1m 2m 10)
SYMBOL res 1104 -144 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R4
SYMATTR Value 1k
SYMBOL npn 2256 -400 R0
SYMATTR InstName Q1
SYMATTR Value BC847A
SYMBOL npn 2128 -304 R0
SYMATTR InstName Q3
SYMATTR Value BC847A
SYMBOL pnp 2128 -16 M180
SYMATTR InstName Q5
SYMATTR Value BC857A
SYMBOL pnp 2256 80 M180
SYMATTR InstName Q6
SYMATTR Value BC857A
SYMBOL voltage 1808 -320 R0
WINDOW 123 0 0 Left 0
WINDOW 39 24 44 Left 2
SYMATTR SpiceLine Rser=100k
SYMATTR InstName V4
SYMATTR Value 15
SYMBOL voltage 3456 -256 R0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName V5
SYMATTR Value 60
SYMBOL nmos 3040 -256 R0
SYMATTR InstName M1
SYMATTR Value IPB025N10N3
SYMBOL res 3072 -368 R0
SYMATTR InstName R1
SYMATTR Value 100
SYMBOL res 3872 -368 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R2
SYMATTR Value 100
SYMBOL res 1968 -352 R0
SYMATTR InstName R3
SYMATTR Value 82k
SYMBOL Optos\\PC817A 1440 -16 R0
SYMATTR InstName U1
SYMBOL cap 2384 -464 R0
SYMATTR InstName C1
SYMATTR Value 1µ
SYMBOL res 3872 -256 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R5
SYMATTR Value 100
SYMBOL diode 3680 -336 R270
WINDOW 0 32 32 VTop 2
WINDOW 3 0 32 VBottom 2
SYMATTR InstName D1
SYMATTR Value 1N4148
SYMBOL diode 3744 -256 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName D2
SYMATTR Value 1N4148
SYMBOL ind 2496 -192 R90
WINDOW 0 5 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName L1
SYMATTR Value 1n
SYMBOL ind 2576 112 R90
WINDOW 0 5 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName L2
SYMATTR Value 1n
SYMBOL res 2624 -192 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R6
SYMATTR Value 10
TEXT 720 136 Left 2 !.tran 20m