Version 4
SHEET 1 1176 808
WIRE -96 -112 -224 -112
WIRE -64 -112 -96 -112
WIRE 48 -112 16 -112
WIRE 896 -112 48 -112
WIRE 1024 -112 896 -112
WIRE 896 -80 896 -112
WIRE 1024 -80 1024 -112
WIRE -96 -16 -96 -112
WIRE -64 -16 -96 -16
WIRE 48 -16 48 -112
WIRE 48 -16 0 -16
WIRE 896 16 896 -16
WIRE 992 16 896 16
WIRE 896 32 896 16
WIRE 896 32 256 32
WIRE 256 48 256 32
WIRE 896 64 896 32
WIRE -48 80 -112 80
WIRE -48 96 -48 80
WIRE 256 144 256 128
WIRE 256 144 208 144
WIRE 288 144 256 144
WIRE 384 144 288 144
WIRE 512 144 384 144
WIRE 704 144 512 144
WIRE 848 144 704 144
WIRE 384 160 384 144
WIRE -112 176 -112 80
WIRE 704 176 704 144
WIRE -48 208 -48 176
WIRE -16 208 -48 208
WIRE 208 208 208 144
WIRE 208 208 176 208
WIRE 512 208 512 144
WIRE 784 224 768 224
WIRE 800 224 784 224
WIRE 896 224 896 160
WIRE 896 224 880 224
WIRE 992 240 992 16
WIRE 1024 240 1024 -16
WIRE 384 256 384 240
WIRE 448 256 384 256
WIRE 288 272 288 144
WIRE 992 272 1024 240
WIRE 1024 272 992 240
WIRE 384 288 384 256
WIRE -112 304 -112 256
WIRE -16 304 -112 304
WIRE 208 304 176 304
WIRE -112 320 -112 304
WIRE 512 320 512 304
WIRE 576 320 512 320
WIRE 896 320 896 224
WIRE 896 320 656 320
WIRE 512 336 512 320
WIRE 512 336 448 336
WIRE 784 336 784 224
WIRE 896 336 896 320
WIRE 512 352 512 336
WIRE -224 400 -224 -112
WIRE 208 432 208 304
WIRE 288 432 288 336
WIRE 288 432 208 432
WIRE 384 432 384 384
WIRE 384 432 288 432
WIRE 512 432 512 416
WIRE 512 432 384 432
WIRE 704 432 704 272
WIRE 704 432 512 432
WIRE 784 432 784 416
WIRE 784 432 704 432
WIRE 896 432 896 416
WIRE 896 432 784 432
WIRE 896 448 896 432
WIRE 992 448 992 272
WIRE 992 448 896 448
WIRE 896 480 896 448
WIRE 1024 480 1024 272
WIRE 896 576 896 544
WIRE 1024 576 1024 544
WIRE 1024 576 896 576
WIRE 752 592 720 592
WIRE 896 592 896 576
WIRE 896 592 832 592
WIRE 896 608 896 592
WIRE 960 608 896 608
WIRE 720 624 720 592
WIRE 896 624 896 608
WIRE 960 624 960 608
WIRE -224 720 -224 480
WIRE 720 720 720 688
WIRE 720 720 -224 720
WIRE 896 720 896 688
WIRE 896 720 720 720
WIRE 960 720 960 704
WIRE 960 720 896 720
WIRE -224 736 -224 720
FLAG -224 736 0
FLAG -112 320 0
SYMBOL voltage -224 384 R0
WINDOW 3 22 105 Left 2
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR Value SINE(0 365 50)
SYMATTR InstName V1
SYMBOL res 32 -96 M270
WINDOW 0 32 56 VTop 2
WINDOW 3 0 56 VBottom 2
SYMATTR InstName R1
SYMATTR Value 25R
SYMBOL nmos 848 64 R0
WINDOW 0 74 124 VLeft 2
WINDOW 3 111 127 VLeft 2
SYMATTR InstName M1
SYMATTR Value STN3N45K3
SYMBOL res 880 320 R0
SYMATTR InstName R2
SYMATTR Value 3r3
SYMBOL cap 912 624 M0
SYMATTR InstName C1
SYMATTR Value 10n
SYMBOL res 240 32 R0
SYMATTR InstName R3
SYMATTR Value 164k
SYMBOL res 944 608 R0
SYMATTR InstName R4
SYMATTR Value 50k
SYMBOL zener 304 336 R180
WINDOW 0 56 -14 VLeft 2
WINDOW 3 58 153 VLeft 2
SYMATTR InstName D5
SYMATTR Value BZX84C8V2L
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL diode 880 -80 R0
SYMATTR InstName D1
SYMATTR Value MUR460
SYMBOL diode 880 480 R0
SYMATTR InstName D2
SYMATTR Value MUR460
SYMBOL diode 1008 -16 M180
WINDOW 0 24 64 Left 2
WINDOW 3 24 0 Left 2
SYMATTR InstName D3
SYMATTR Value MUR460
SYMBOL diode 1008 544 M180
WINDOW 0 24 64 Left 2
WINDOW 3 24 0 Left 2
SYMATTR InstName D4
SYMATTR Value MUR460
SYMBOL npn 448 288 M0
WINDOW 0 48 31 Left 2
WINDOW 3 46 59 Left 2
SYMATTR InstName Q1
SYMATTR Value BC847A
SYMBOL res 672 304 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R5
SYMATTR Value 10k
SYMBOL cap -64 -32 M90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C2
SYMATTR Value 1n
SYMBOL pnp 448 304 M180
WINDOW 0 56 37 Left 2
WINDOW 3 55 68 Left 2
SYMATTR InstName Q2
SYMATTR Value BC857A
SYMBOL res 368 144 R0
SYMATTR InstName R7
SYMATTR Value 10k
SYMBOL Optos\\PC817A 80 256 R0
SYMATTR InstName U1
SYMBOL cap 496 352 R0
SYMATTR InstName C3
SYMATTR Value 470n
SYMBOL res -64 80 R0
SYMATTR InstName R6
SYMATTR Value 330R
SYMBOL voltage -112 160 M0
WINDOW 3 24 96 Invisible 2
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR Value PULSE(3.3 0 49.1m 100n 100n 1.8m 10m)
SYMATTR InstName V2
SYMBOL npn 768 176 M0
WINDOW 0 48 31 Left 2
WINDOW 3 46 59 Left 2
SYMATTR InstName Q3
SYMATTR Value BC847A
SYMBOL res 896 208 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R8
SYMATTR Value 2k7
SYMBOL res 768 320 R0
SYMATTR InstName R9
SYMATTR Value 10k
SYMBOL cap 736 624 M0
SYMATTR InstName C4
SYMATTR Value 440n
SYMBOL res 848 576 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R10
SYMATTR Value 50R
TEXT -184 744 Left 2 !.tran 200m
TEXT 8 -144 Left 2 ;B59750C0120A070