Version 4 SHEET 1 3508 1556 WIRE 896 -688 848 -688 WIRE 1024 -688 976 -688 WIRE 1120 -688 1088 -688 WIRE 512 -512 -976 -512 WIRE 848 -512 848 -688 WIRE 848 -512 592 -512 WIRE 912 -512 848 -512 WIRE 960 -512 912 -512 WIRE 1120 -512 1120 -688 WIRE 1120 -512 1024 -512 WIRE 1184 -512 1120 -512 WIRE 1536 -512 1184 -512 WIRE 1728 -512 1600 -512 WIRE 1920 -512 1728 -512 WIRE 2048 -512 1920 -512 WIRE 2176 -512 2048 -512 WIRE 2384 -512 2288 -512 WIRE 2560 -512 2512 -512 WIRE 2768 -512 2704 -512 WIRE 2048 -496 2048 -512 WIRE 2176 -480 2176 -512 WIRE 2384 -480 2384 -512 WIRE 2560 -480 2560 -512 WIRE 2768 -480 2768 -512 WIRE 2176 -384 2176 -416 WIRE 2384 -384 2384 -416 WIRE 2560 -384 2560 -416 WIRE 2768 -384 2768 -416 WIRE 2048 -336 2048 -416 WIRE -80 -304 -208 -304 WIRE 64 -304 -16 -304 WIRE 96 -304 64 -304 WIRE 2176 -288 2176 -320 WIRE 2384 -288 2384 -320 WIRE 2560 -288 2560 -320 WIRE 2768 -288 2768 -320 WIRE 576 -240 128 -240 WIRE 2048 -240 2048 -272 WIRE 2048 -240 656 -240 WIRE 2080 -240 2048 -240 WIRE 2176 -192 2176 -224 WIRE 2384 -192 2384 -224 WIRE 2560 -192 2560 -224 WIRE 2768 -192 2768 -224 WIRE -208 -176 -208 -304 WIRE -160 -176 -208 -176 WIRE -16 -176 -80 -176 WIRE 96 -176 96 -304 WIRE 96 -176 48 -176 WIRE 432 -176 304 -176 WIRE 432 -144 432 -176 WIRE 1184 -128 1184 -512 WIRE 2176 -96 2176 -128 WIRE 2384 -96 2384 -128 WIRE 2560 -96 2560 -128 WIRE 2768 -96 2768 -128 WIRE 1728 -48 1728 -512 WIRE 432 -32 432 -64 WIRE 2176 0 2176 -32 WIRE 2384 0 2384 -32 WIRE 2560 0 2560 -32 WIRE 2768 0 2768 -32 WIRE 304 16 304 -176 WIRE -976 32 -976 -512 WIRE 912 32 912 -512 WIRE -208 80 -208 -176 WIRE 128 80 128 -240 WIRE 128 80 -208 80 WIRE 144 80 128 80 WIRE 2768 96 2768 64 WIRE 512 112 464 112 WIRE 704 112 512 112 WIRE 816 112 784 112 WIRE 864 112 816 112 WIRE 2176 112 2176 64 WIRE 2288 112 2288 -512 WIRE 2288 112 2176 112 WIRE 2384 112 2384 64 WIRE 2512 112 2512 -512 WIRE 2512 112 2384 112 WIRE 2560 112 2560 64 WIRE 2704 112 2704 -512 WIRE 2704 112 2560 112 WIRE 2080 128 2080 -240 WIRE 96 144 96 -176 WIRE 144 144 96 144 WIRE 816 160 816 112 WIRE 2768 192 2768 160 WIRE -240 208 -240 176 WIRE -16 208 -240 208 WIRE 96 208 -16 208 WIRE 144 208 96 208 WIRE 576 240 464 240 WIRE -16 256 -16 208 WIRE 816 256 816 240 WIRE 144 272 48 272 WIRE 576 336 576 240 WIRE 736 336 576 336 WIRE 912 336 912 128 WIRE 912 336 816 336 WIRE -16 368 -16 336 WIRE -16 368 -160 368 WIRE 48 368 48 272 WIRE 48 368 -16 368 WIRE 912 384 912 336 WIRE -16 400 -16 368 WIRE 96 400 96 208 WIRE -160 416 -160 368 WIRE 576 416 576 336 WIRE 2080 416 2080 208 WIRE 2656 416 2080 416 WIRE 2768 416 2768 256 WIRE 2768 416 2656 416 WIRE -288 496 -416 496 WIRE -208 496 -288 496 WIRE -416 592 -416 496 WIRE 2768 640 2768 416 WIRE -976 736 -976 112 WIRE -416 736 -416 672 WIRE -416 736 -976 736 WIRE -160 736 -160 512 WIRE -160 736 -416 736 WIRE -16 736 -16 464 WIRE -16 736 -160 736 WIRE 96 736 96 464 WIRE 96 736 -16 736 WIRE 304 736 304 336 WIRE 304 736 96 736 WIRE 576 736 576 480 WIRE 576 736 304 736 WIRE 912 736 912 464 WIRE 912 736 576 736 WIRE 1184 736 1184 -48 WIRE 1184 736 912 736 WIRE 1728 736 1728 16 WIRE 1728 736 1184 736 WIRE 2768 736 2768 720 WIRE 2768 736 1728 736 WIRE 304 768 304 736 WIRE -288 848 -288 496 WIRE 64 848 -288 848 WIRE 512 848 512 112 WIRE 512 848 128 848 WIRE -288 944 -288 848 WIRE 64 944 -288 944 WIRE 512 944 128 944 WIRE 512 992 512 944 WIRE 512 1120 512 1072 FLAG 432 -32 0 FLAG 304 768 0 FLAG 816 256 0 FLAG -240 176 vref FLAG 512 1120 0 FLAG 64 -304 comp FLAG 2656 416 Iled FLAG 1920 -512 supply SYMBOL nmos 864 32 R0 SYMATTR InstName M1 SYMATTR Value BSC118N10NS SYMBOL PowerProducts\\LT1243 304 176 R0 SYMATTR InstName U1 SYMBOL res 800 144 R0 SYMATTR InstName R1 SYMATTR Value 33k SYMBOL res 800 96 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R2 SYMATTR Value 1 SYMBOL res 0 352 R180 WINDOW 0 36 76 Left 2 WINDOW 3 36 40 Left 2 SYMATTR InstName R3 SYMATTR Value 1k5 SYMBOL res 928 480 R180 WINDOW 0 36 76 Left 2 WINDOW 3 36 40 Left 2 SYMATTR InstName R4 SYMATTR Value 0.21 SYMBOL res 720 352 R270 WINDOW 0 32 56 VTop 2 WINDOW 3 0 56 VBottom 2 SYMATTR InstName R5 SYMATTR Value 750 SYMBOL cap 80 400 R0 SYMATTR InstName C1 SYMATTR Value 3µ3 SYMATTR SpiceLine Rser=0.04 SYMBOL cap -32 400 R0 SYMATTR InstName C2 SYMATTR Value 750p SYMATTR SpiceLine Rser=0.04 SYMBOL cap 560 416 R0 SYMATTR InstName C3 SYMATTR Value 220p SYMATTR SpiceLine Rser=0.04 SYMBOL voltage 432 -160 R0 WINDOW 123 0 0 Left 2 WINDOW 39 24 44 Left 2 SYMATTR SpiceLine Rser=0.1 SYMATTR InstName V1 SYMATTR Value 10 SYMBOL voltage -976 16 R0 WINDOW 123 0 0 Left 2 WINDOW 39 24 124 Left 2 SYMATTR SpiceLine Rser=0.05 SYMATTR InstName V2 SYMATTR Value 12 SYMBOL schottky 1536 -496 R270 WINDOW 0 32 32 VTop 2 WINDOW 3 0 32 VBottom 2 SYMATTR InstName D1 SYMATTR Value MBRS1100 SYMATTR Description Diode SYMATTR Type diode SYMBOL cap 1712 -48 R0 SYMATTR InstName C4 SYMATTR Value 2µ2 SYMATTR SpiceLine Rser=0.04 SYMBOL LED 2160 -192 R0 SYMATTR InstName D2 SYMATTR Value AOT-2015 SYMATTR Description Diode SYMATTR Type diode SYMBOL res 2752 624 R0 SYMATTR InstName R6 SYMATTR Value 25 SYMBOL res -64 -192 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R7 SYMATTR Value 4k7 SYMBOL cap 48 -192 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName C5 SYMATTR Value 20n SYMATTR SpiceLine Rser=0.04 SYMBOL cap -16 -320 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName C6 SYMATTR Value 50p SYMATTR SpiceLine Rser=0.04 SYMBOL ind 496 -496 R270 WINDOW 0 32 56 VTop 2 WINDOW 3 5 56 VBottom 2 SYMATTR InstName L1 SYMATTR Value 200µ SYMATTR SpiceLine Rser=0.1 SYMBOL LED 2160 -96 R0 SYMATTR InstName D3 SYMATTR Value AOT-2015 SYMATTR Description Diode SYMATTR Type diode SYMBOL LED 2160 0 R0 SYMATTR InstName D4 SYMATTR Value AOT-2015 SYMATTR Description Diode SYMATTR Type diode SYMBOL LED 2160 -480 R0 SYMATTR InstName D5 SYMATTR Value AOT-2015 SYMATTR Description Diode SYMATTR Type diode SYMBOL LED 2160 -384 R0 SYMATTR InstName D6 SYMATTR Value AOT-2015 SYMATTR Description Diode SYMATTR Type diode SYMBOL LED 2160 -288 R0 SYMATTR InstName D7 SYMATTR Value AOT-2015 SYMATTR Description Diode SYMATTR Type diode SYMBOL LED 2368 -192 R0 SYMATTR InstName D8 SYMATTR Value AOT-2015 SYMATTR Description Diode SYMATTR Type diode SYMBOL LED 2368 -96 R0 SYMATTR InstName D9 SYMATTR Value AOT-2015 SYMATTR Description Diode SYMATTR Type diode SYMBOL LED 2368 0 R0 SYMATTR InstName D10 SYMATTR Value AOT-2015 SYMATTR Description Diode SYMATTR Type diode SYMBOL LED 2368 -480 R0 SYMATTR InstName D11 SYMATTR Value AOT-2015 SYMATTR Description Diode SYMATTR Type diode SYMBOL LED 2368 -384 R0 SYMATTR InstName D12 SYMATTR Value AOT-2015 SYMATTR Description Diode SYMATTR Type diode SYMBOL LED 2368 -288 R0 SYMATTR InstName D13 SYMATTR Value AOT-2015 SYMATTR Description Diode SYMATTR Type diode SYMBOL LED 2544 -192 R0 SYMATTR InstName D14 SYMATTR Value AOT-2015 SYMATTR Description Diode SYMATTR Type diode SYMBOL LED 2544 -96 R0 SYMATTR InstName D15 SYMATTR Value AOT-2015 SYMATTR Description Diode SYMATTR Type diode SYMBOL LED 2544 0 R0 SYMATTR InstName D16 SYMATTR Value AOT-2015 SYMATTR Description Diode SYMATTR Type diode SYMBOL LED 2544 -480 R0 SYMATTR InstName D17 SYMATTR Value AOT-2015 SYMATTR Description Diode SYMATTR Type diode SYMBOL LED 2544 -384 R0 SYMATTR InstName D18 SYMATTR Value AOT-2015 SYMATTR Description Diode SYMATTR Type diode SYMBOL LED 2544 -288 R0 SYMATTR InstName D19 SYMATTR Value AOT-2015 SYMATTR Description Diode SYMATTR Type diode SYMBOL LED 2752 -192 R0 SYMATTR InstName D20 SYMATTR Value AOT-2015 SYMATTR Description Diode SYMATTR Type diode SYMBOL LED 2752 -96 R0 SYMATTR InstName D21 SYMATTR Value AOT-2015 SYMATTR Description Diode SYMATTR Type diode SYMBOL LED 2752 0 R0 SYMATTR InstName D22 SYMATTR Value AOT-2015 SYMATTR Description Diode SYMATTR Type diode SYMBOL LED 2752 -480 R0 SYMATTR InstName D23 SYMATTR Value AOT-2015 SYMATTR Description Diode SYMATTR Type diode SYMBOL LED 2752 -384 R0 SYMATTR InstName D24 SYMATTR Value AOT-2015 SYMATTR Description Diode SYMATTR Type diode SYMBOL LED 2752 -288 R0 SYMATTR InstName D25 SYMATTR Value AOT-2015 SYMATTR Description Diode SYMATTR Type diode SYMBOL LED 2752 96 R0 SYMATTR InstName D26 SYMATTR Value AOT-2015 SYMATTR Description Diode SYMATTR Type diode SYMBOL LED 2752 192 R0 SYMATTR InstName D27 SYMATTR Value AOT-2015 SYMATTR Description Diode SYMATTR Type diode SYMBOL res 672 -256 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R8 SYMATTR Value 10k SYMBOL nmos -208 416 R0 SYMATTR InstName M2 SYMATTR Value 2N7002 SYMBOL res 2064 112 R0 SYMATTR InstName R10 SYMATTR Value 1k SYMBOL res 2032 -512 R0 SYMATTR InstName R11 SYMATTR Value 2k SYMBOL cap 2032 -336 R0 SYMATTR InstName C7 SYMATTR Value 60n SYMATTR SpiceLine Rser=0.04 SYMBOL voltage 512 976 R0 WINDOW 123 0 0 Left 2 WINDOW 39 24 124 Left 2 SYMATTR SpiceLine Rser=0.1 SYMATTR InstName V4 SYMATTR Value PULSE(0 10 3m 1u 1u 2m5 5m) SYMBOL cap 1024 -528 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName C9 SYMATTR Value 10µ SYMATTR SpiceLine Rser=0.04 SYMBOL ind 1168 -144 R0 SYMATTR InstName L2 SYMATTR Value 200µ SYMATTR SpiceLine Rser=0.1 SYMBOL res 992 -704 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R22 SYMATTR Value 5 SYMBOL cap 1088 -704 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName C10 SYMATTR Value 10µ SYMATTR SpiceLine Rser=0.04 SYMBOL diode 128 832 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName D28 SYMATTR Value 1N914 SYMBOL diode 128 928 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName D29 SYMATTR Value 1N914 SYMBOL res -432 576 R0 SYMATTR InstName R9 SYMATTR Value 2200 TEXT 576 792 Left 2 !.tran 0 10m 0 startup TEXT -720 904 Left 5 ;OFF-TIME\nCOMPARATOR