Version 4
SHEET 1 1700 2100
WIRE 864 -16 32 -16
WIRE -592 32 -688 32
WIRE -496 32 -592 32
WIRE -448 32 -496 32
WIRE -256 32 -352 32
WIRE -128 32 -256 32
WIRE -80 32 -128 32
WIRE 720 32 -80 32
WIRE -688 48 -688 32
WIRE -80 48 -80 32
WIRE -256 64 -256 32
WIRE 624 64 192 64
WIRE 752 64 624 64
WIRE 864 64 864 -16
WIRE 864 64 816 64
WIRE 624 80 624 64
WIRE -80 128 -80 112
WIRE -688 144 -688 128
WIRE 624 160 624 144
WIRE -128 192 -128 32
WIRE 32 192 32 -16
WIRE 192 192 192 64
WIRE 384 192 320 192
WIRE 496 192 384 192
WIRE 864 192 864 64
WIRE 864 192 560 192
WIRE 384 208 384 192
WIRE 864 224 864 192
WIRE -496 240 -496 32
WIRE 720 240 720 32
WIRE 320 256 320 192
WIRE 320 256 288 256
WIRE 384 288 384 272
WIRE 512 320 288 320
WIRE 672 320 592 320
WIRE 720 368 720 336
WIRE 720 368 608 368
WIRE 864 368 864 288
WIRE 864 368 720 368
WIRE 928 368 864 368
WIRE 1056 368 1008 368
WIRE 1072 368 1056 368
WIRE 1184 368 1152 368
WIRE 1264 368 1184 368
WIRE 608 384 608 368
WIRE 608 384 288 384
WIRE 720 384 720 368
WIRE 1264 384 1264 368
WIRE -592 416 -592 32
WIRE 864 416 864 368
WIRE -368 448 -368 80
WIRE -224 448 -368 448
WIRE 608 448 288 448
WIRE 608 464 608 448
WIRE 672 464 608 464
WIRE 1264 480 1264 464
WIRE -592 512 -592 496
WIRE -224 512 -592 512
WIRE 304 512 288 512
WIRE 400 512 384 512
WIRE 496 512 464 512
WIRE 720 512 720 480
WIRE 864 512 864 480
WIRE -592 528 -592 512
WIRE 1056 544 1056 368
WIRE 1056 544 960 544
WIRE 1184 544 1184 368
WIRE 1280 544 1184 544
WIRE 384 576 288 576
WIRE 528 576 384 576
WIRE 528 592 528 576
WIRE 1184 592 1184 544
WIRE -592 624 -592 608
WIRE 384 624 384 576
WIRE -496 640 -496 320
WIRE -224 640 -496 640
WIRE 320 640 288 640
WIRE 528 688 528 672
WIRE -256 704 -256 144
WIRE -224 704 -256 704
WIRE 320 704 320 640
WIRE 320 704 288 704
WIRE 1056 736 1056 544
WIRE -368 768 -448 768
WIRE -224 768 -304 768
WIRE 320 768 320 704
WIRE 320 768 288 768
WIRE 384 768 384 704
WIRE 528 768 528 752
WIRE -432 832 -448 832
WIRE -320 832 -368 832
WIRE -224 832 -240 832
WIRE 320 832 288 832
WIRE 320 896 288 896
WIRE 320 960 320 896
WIRE 320 960 288 960
WIRE 320 992 320 960
WIRE 224 1056 224 1024
WIRE 960 1056 960 544
WIRE 960 1056 224 1056
WIRE 96 1088 96 1024
WIRE 1056 1088 1056 816
WIRE 1056 1088 96 1088
WIRE -32 1120 -32 1024
WIRE 1184 1120 1184 672
WIRE 1184 1120 -32 1120
WIRE -160 1152 -160 1024
WIRE 1280 1152 1280 544
WIRE 1280 1152 -160 1152
FLAG 720 512 0
FLAG 864 512 0
FLAG 320 992 0
FLAG 528 768 0
FLAG 496 512 0
FLAG 384 768 0
FLAG -448 832 0
FLAG -448 768 0
FLAG 384 288 0
FLAG 624 160 0
FLAG -592 624 0
FLAG -80 128 0
FLAG 1264 480 0
FLAG -688 144 0
FLAG -688 32 IN
FLAG 1264 368 OUT
SYMBOL NMOS 672 240 R0
SYMATTR InstName Q1
SYMATTR Value Si4412DY
SYMBOL nmos 672 384 R0
SYMATTR InstName Q2
SYMATTR Value Si4412DY
SYMBOL ind 912 384 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 5 56 VBottom 2
SYMATTR InstName L1
SYMATTR Value 15µ
SYMBOL schottky 848 480 M180
WINDOW 0 24 72 Left 2
WINDOW 3 24 0 Left 2
SYMATTR InstName D1
SYMATTR Value MBRS140
SYMBOL RES 1056 352 M90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R1
SYMATTR Value .025
SYMBOL res 1040 720 R0
SYMATTR InstName R2
SYMATTR Value 200
SYMBOL res 1168 576 R0
SYMATTR InstName R3
SYMATTR Value 200
SYMBOL res 368 608 R0
SYMATTR InstName R4
SYMATTR Value 4.93K
SYMBOL res 512 576 R0
SYMATTR InstName R5
SYMATTR Value 300
SYMBOL res 288 528 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 0 56 VBottom 2
SYMATTR InstName R6
SYMATTR Value 3K
SYMBOL cap 512 688 R0
SYMATTR InstName C1
SYMATTR Value 1µ
SYMBOL cap 400 528 R270
WINDOW 0 32 32 VTop 2
WINDOW 3 0 32 VBottom 2
SYMATTR InstName C2
SYMATTR Value .33µ
SYMBOL cap -304 752 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C3
SYMATTR Value .1µ
SYMBOL res -272 48 R0
SYMATTR InstName R7
SYMATTR Value 5K
SYMBOL cap 848 224 R0
SYMATTR InstName C4
SYMATTR Value .68µ
SYMBOL cap 368 208 R0
SYMATTR InstName C5
SYMATTR Value 2.2µ
SYMBOL diode 496 208 R270
WINDOW 0 32 32 VTop 2
WINDOW 3 0 32 VBottom 2
SYMATTR InstName D2
SYMATTR Value 1N4148
SYMBOL diode 816 48 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName D3
SYMATTR Value 1N4148
SYMBOL cap 608 80 R0
SYMATTR InstName C6
SYMATTR Value .1µ
SYMBOL res -512 224 R0
SYMATTR InstName R8
SYMATTR Value 100K
SYMBOL res -608 512 R0
SYMATTR InstName R9
SYMATTR Value 4K
SYMBOL res -608 400 R0
SYMATTR InstName R10
SYMATTR Value 4K
SYMBOL cap -96 48 R0
SYMATTR InstName C7
SYMATTR Value 47µ
SYMBOL VOLTAGE -688 32 R0
SYMATTR InstName V1
SYMATTR Value 24
SYMBOL voltage 1264 368 R0
SYMATTR InstName V2
SYMATTR Value PWL(0 12 1m 12 10m 17)
SYMBOL res 608 304 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R11
SYMATTR Value 5
SYMBOL PMOS -448 80 R270
WINDOW 0 106 29 VRight 2
WINDOW 3 70 0 VRight 2
SYMATTR InstName Q3
SYMATTR Value Si9803DY
SYMBOL res -336 816 M90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R12
SYMATTR Value 1K
SYMBOL cap -368 816 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C8
SYMATTR Value .68µ
SYMBOL PowerProducts\\LT1505-1 32 608 R0
SYMATTR InstName U1
TEXT 480 880 Left 2 !.tran 10m\n.ic V(vc)=1 V(prg)=2.5