Version 4
SHEET 1 880 852
WIRE -16 -384 -96 -384
WIRE 192 -384 -16 -384
WIRE 288 -384 192 -384
WIRE 544 -384 288 -384
WIRE 608 -384 544 -384
WIRE 608 -352 608 -384
WIRE -16 -336 -16 -384
WIRE 288 -336 288 -384
WIRE 544 -336 544 -384
WIRE 192 -288 192 -384
WIRE 320 -256 288 -256
WIRE 544 -256 512 -256
WIRE 608 -256 608 -272
WIRE 672 -256 608 -256
WIRE 96 -240 64 -240
WIRE 128 -240 96 -240
WIRE 608 -240 608 -256
WIRE -16 -224 -16 -256
WIRE 64 -224 -16 -224
WIRE 288 -224 256 -224
WIRE -16 -208 -16 -224
WIRE -96 -192 -96 -384
WIRE 288 -160 288 -224
WIRE 320 -160 288 -160
WIRE 512 -160 512 -192
WIRE 544 -160 544 -256
WIRE 560 -160 544 -160
WIRE -96 -144 -96 -192
WIRE 608 -128 608 -144
WIRE 672 -128 672 -192
WIRE 672 -128 608 -128
WIRE -16 -112 -16 -128
WIRE 96 -112 96 -240
WIRE 96 -112 -16 -112
WIRE -16 -96 -16 -112
WIRE 288 -96 288 -160
WIRE 288 -96 256 -96
WIRE 512 -96 512 -160
WIRE 608 -96 608 -128
WIRE 608 -96 512 -96
WIRE 64 -80 64 -224
WIRE 128 -80 64 -80
WIRE 288 -48 272 -48
WIRE 608 -48 608 -96
WIRE 608 -48 544 -48
WIRE -96 -16 -96 -128
WIRE -16 -16 -96 -16
WIRE 192 -16 192 -32
WIRE 192 -16 -16 -16
WIRE 608 -16 608 -48
WIRE 288 0 288 -48
WIRE 544 0 544 -48
WIRE -96 16 -96 -16
WIRE -64 16 -96 16
WIRE -16 16 -64 16
WIRE 192 16 -16 16
WIRE 272 16 272 -48
WIRE 272 16 192 16
WIRE 192 48 192 16
WIRE 672 64 608 64
WIRE 320 80 288 80
WIRE 544 80 512 80
WIRE 128 96 96 96
WIRE 608 96 608 64
WIRE -16 112 -16 96
WIRE 80 112 -16 112
WIRE 288 112 256 112
WIRE -16 128 -16 112
WIRE -96 144 -96 16
WIRE 288 176 288 112
WIRE 320 176 288 176
WIRE 512 176 512 144
WIRE 544 176 544 80
WIRE 560 176 544 176
WIRE 608 208 608 192
WIRE 672 208 672 128
WIRE 672 208 608 208
WIRE -16 224 -16 208
WIRE 96 224 96 96
WIRE 96 224 -16 224
WIRE -16 240 -16 224
WIRE 288 240 288 176
WIRE 288 240 256 240
WIRE 512 240 512 176
WIRE 608 240 608 208
WIRE 608 240 512 240
WIRE 80 256 80 112
WIRE 128 256 80 256
WIRE 288 288 272 288
WIRE 608 288 608 240
WIRE 608 288 544 288
WIRE -96 320 -96 208
WIRE -16 320 -96 320
WIRE 192 320 192 304
WIRE 192 320 -16 320
WIRE 608 320 608 288
WIRE 288 336 288 288
WIRE 544 336 544 288
WIRE -96 352 -96 320
WIRE -64 352 -96 352
WIRE -16 352 -64 352
WIRE 192 352 -16 352
WIRE 272 352 272 288
WIRE 272 352 192 352
WIRE 192 384 192 352
WIRE 320 416 288 416
WIRE 544 416 512 416
WIRE 608 416 608 400
WIRE 672 416 608 416
WIRE 128 432 96 432
WIRE 608 432 608 416
WIRE -16 448 -16 432
WIRE 80 448 -16 448
WIRE 288 448 256 448
WIRE -16 464 -16 448
WIRE -96 480 -96 352
WIRE 288 512 288 448
WIRE 320 512 288 512
WIRE 512 512 512 480
WIRE 544 512 544 416
WIRE 560 512 544 512
WIRE 512 544 512 512
WIRE 608 544 608 528
WIRE 608 544 512 544
WIRE -16 560 -16 544
WIRE 96 560 96 432
WIRE 96 560 -16 560
WIRE 608 560 608 544
WIRE 608 560 352 560
WIRE 672 560 672 480
WIRE 672 560 608 560
WIRE -16 576 -16 560
WIRE 288 576 288 512
WIRE 288 576 256 576
WIRE 80 592 80 448
WIRE 128 592 80 592
WIRE 416 624 400 624
WIRE 400 640 400 624
WIRE 400 640 352 640
WIRE -96 656 -96 544
WIRE -16 656 -96 656
WIRE 192 656 192 640
WIRE 192 656 -16 656
WIRE 640 688 608 688
WIRE -96 704 -96 656
WIRE 192 720 192 656
WIRE 416 720 192 720
WIRE 192 768 192 720
WIRE 640 768 640 688
WIRE 640 768 192 768
FLAG -96 704 0
FLAG -96 -384 BT1
FLAG -64 16 BT2
FLAG -64 352 BT3
SYMBOL res -32 0 R0
SYMATTR InstName R1
SYMATTR Value 1meg
SYMBOL res -32 112 R0
SYMATTR InstName R2
SYMATTR Value 58.3k
SYMBOL res -32 224 R0
SYMATTR InstName R3
SYMATTR Value 133k
SYMBOL Misc\\cell -96 144 R0
WINDOW 3 -80 -142 VRight 2
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V1
SYMATTR Value PWL(0 3.2 1 3.2 1.1 2.0 1.9 4.0 2.0 3.2)
SYMBOL res -32 -352 R0
SYMATTR InstName R5
SYMATTR Value 1meg
SYMBOL res -32 -224 R0
SYMATTR InstName R6
SYMATTR Value 58.3k
SYMBOL res -32 -112 R0
SYMATTR InstName R7
SYMATTR Value 133k
SYMBOL Misc\\cell -96 -192 R0
WINDOW 3 -49 -130 VRight 2
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V2
SYMATTR Value PWL(0 3.2 0.1 3.2 0.2 2.0 0.9 4.0 1.0 3.2)
SYMBOL res -32 336 R0
SYMATTR InstName R9
SYMATTR Value 1meg
SYMBOL res -32 448 R0
SYMATTR InstName R10
SYMATTR Value 58.3k
SYMBOL res -32 560 R0
SYMATTR InstName R11
SYMATTR Value 133k
SYMBOL Misc\\cell -96 480 R0
WINDOW 3 -40 -191 VRight 2
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V3
SYMATTR Value PWL(0 3.2 2.0 3.2 2.1 2.0 2.9 4.0 3.0 3.2)
SYMBOL Optos\\CNY17-1 512 688 R0
SYMATTR InstName U4
SYMBOL Comparators\\LT6700-1 192 -160 R0
SYMATTR InstName U1
SYMBOL Comparators\\LT6700-1 192 176 R0
SYMATTR InstName U2
SYMBOL Comparators\\LT6700-1 192 512 R0
SYMATTR InstName U3
SYMBOL res 336 544 R0
SYMATTR InstName R14
SYMATTR Value 1k
SYMBOL res 272 -352 R0
SYMATTR InstName R4
SYMATTR Value 470
SYMBOL res 592 -368 R0
SYMATTR InstName R8
SYMATTR Value 470
SYMBOL nmos 560 -240 R0
SYMATTR InstName M1
SYMATTR Value FDS6930A
SYMBOL res 528 -352 R0
SYMATTR InstName R12
SYMATTR Value 47k
SYMBOL res 592 -32 R0
SYMATTR InstName R13
SYMATTR Value 470
SYMBOL res 528 -16 R0
SYMATTR InstName R15
SYMATTR Value 47k
SYMBOL res 272 320 R0
SYMATTR InstName R16
SYMATTR Value 470
SYMBOL res 592 304 R0
SYMATTR InstName R17
SYMATTR Value 470
SYMBOL res 528 320 R0
SYMATTR InstName R18
SYMATTR Value 47k
SYMBOL res 272 -16 R0
SYMATTR InstName R19
SYMATTR Value 470
SYMBOL zener 688 -192 R180
WINDOW 0 24 64 Left 2
WINDOW 3 24 0 Left 2
SYMATTR InstName D1
SYMATTR Value BZX84C12L
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL zener 688 128 R180
WINDOW 0 24 64 Left 2
WINDOW 3 24 0 Left 2
SYMATTR InstName D2
SYMATTR Value BZX84C12L
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL zener 688 480 R180
WINDOW 0 24 64 Left 2
WINDOW 3 24 0 Left 2
SYMATTR InstName D3
SYMATTR Value BZX84C12L
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL Optos\\PC817A 416 -208 R0
SYMATTR InstName U5
SYMBOL nmos 560 96 R0
SYMATTR InstName M2
SYMATTR Value FDS6930A
SYMBOL nmos 560 432 R0
SYMATTR InstName M3
SYMATTR Value FDS6930A
SYMBOL Optos\\PC817D 416 128 R0
SYMATTR InstName U6
SYMBOL Optos\\PC817D 416 464 R0
SYMATTR InstName U7
TEXT -32 704 Left 2 !.tran 3.5 startup