Version 4 SHEET 1 2684 1812 WIRE -992 -352 -1104 -352 WIRE -800 -352 -992 -352 WIRE -16 -352 -800 -352 WIRE -1104 -336 -1104 -352 WIRE -992 -336 -992 -352 WIRE -800 -336 -800 -352 WIRE -992 -256 -992 -272 WIRE -1104 -240 -1104 -256 WIRE -800 -224 -800 -256 WIRE -208 -224 -800 -224 WIRE -16 -112 -16 -352 WIRE 224 -112 -16 -112 WIRE 480 -112 304 -112 WIRE 592 -112 480 -112 WIRE 752 -112 656 -112 WIRE 992 -112 752 -112 WIRE 1088 -112 992 -112 WIRE -800 -96 -800 -144 WIRE -16 -64 -16 -112 WIRE 992 -64 992 -112 WIRE 480 -16 480 -112 WIRE -208 0 -208 -224 WIRE -192 0 -208 0 WIRE 224 0 160 0 WIRE 272 0 224 0 WIRE 352 0 336 0 WIRE 352 16 352 0 WIRE 752 16 752 -112 WIRE -304 64 -352 64 WIRE -192 64 -224 64 WIRE 432 64 160 64 WIRE 992 64 992 16 WIRE 992 64 896 64 WIRE 992 80 992 64 WIRE -864 128 -1040 128 WIRE -720 128 -784 128 WIRE -464 128 -640 128 WIRE -192 128 -384 128 WIRE 480 128 480 80 WIRE 480 128 160 128 WIRE -1040 160 -1040 128 WIRE -192 192 -1056 192 WIRE 992 192 992 160 WIRE 752 208 752 80 WIRE 752 208 480 208 WIRE 480 224 480 208 WIRE -192 256 -752 256 WIRE 896 256 896 64 WIRE 896 256 160 256 WIRE 1088 304 1088 -112 WIRE 1088 304 960 304 WIRE -752 320 -752 256 WIRE -192 320 -624 320 WIRE 960 320 960 304 WIRE 960 320 160 320 WIRE -624 368 -624 320 WIRE -192 384 -384 384 WIRE 1088 384 160 384 WIRE -1056 400 -1056 192 WIRE -384 400 -384 384 WIRE -752 416 -752 400 WIRE -192 448 -256 448 WIRE 224 448 160 448 WIRE -256 464 -256 448 WIRE -1056 496 -1056 480 WIRE -752 496 -752 480 WIRE -624 496 -624 432 WIRE -624 496 -752 496 WIRE -384 496 -384 480 WIRE -384 496 -624 496 WIRE -624 528 -624 496 WIRE -256 560 -256 544 WIRE 688 576 320 576 WIRE 1024 576 752 576 WIRE 688 608 688 576 WIRE 752 608 752 576 WIRE 1024 608 1024 576 WIRE 1088 608 1088 384 WIRE 320 640 320 576 WIRE 224 720 224 448 WIRE 272 720 224 720 WIRE 688 736 688 672 WIRE 752 736 752 672 WIRE 1024 736 1024 672 WIRE 1088 736 1088 672 WIRE -848 768 -848 752 WIRE -16 800 -16 512 WIRE 320 800 320 736 WIRE 320 800 -16 800 WIRE -16 816 -16 800 WIRE 688 864 688 800 WIRE 752 864 752 800 WIRE 1024 864 1024 800 WIRE 1088 864 1088 800 WIRE 688 992 688 928 WIRE 752 992 752 928 WIRE 1024 992 1024 928 WIRE 1088 992 1088 928 WIRE 688 1120 688 1056 WIRE 752 1120 752 1056 WIRE 1024 1120 1024 1056 WIRE 1088 1120 1088 1056 WIRE 688 1216 688 1184 WIRE 752 1216 752 1184 WIRE 752 1216 688 1216 WIRE 1024 1216 1024 1184 WIRE 1088 1216 1088 1184 WIRE 1088 1216 1024 1216 FLAG -1104 -240 0 FLAG -992 -256 0 FLAG 352 16 0 FLAG 992 192 0 FLAG -624 528 0 FLAG -352 64 INTVcc FLAG -800 -96 0 FLAG 224 0 INTVcc FLAG 480 224 0 FLAG -16 816 0 FLAG -256 560 0 FLAG -1040 160 0 FLAG -1056 496 0 SYMBOL PowerProducts\\LT3761 -16 224 R0 SYMATTR InstName U1 SYMBOL voltage -1104 -352 R0 WINDOW 123 0 0 Left 2 WINDOW 39 0 0 Left 2 SYMATTR InstName V1 SYMATTR Value 12 SYMBOL cap -1008 -336 R0 SYMATTR InstName C1 SYMATTR Value 3.3µ SYMATTR SpiceLine V=25 Irms=0 Rser=0.005 Lser=0 mfg="TDK" pn="C4532X7RlE335M" type="X7R" SYMBOL res -816 -352 R0 SYMATTR InstName R1 SYMATTR Value 470k SYMBOL res -816 -240 R0 SYMATTR InstName R2 SYMATTR Value 68k SYMBOL res 1072 288 R0 SYMATTR InstName R3 SYMATTR Value 0.82 SYMBOL LED 1072 608 R0 SYMATTR InstName D1 SYMATTR Value LUW-W5AP SYMATTR Description Diode SYMATTR Type diode SYMBOL LED 1072 736 R0 SYMATTR InstName D2 SYMATTR Value LUW-W5AP SYMATTR Description Diode SYMATTR Type diode SYMBOL LED 1072 864 R0 SYMATTR InstName D3 SYMATTR Value LUW-W5AP SYMATTR Description Diode SYMATTR Type diode SYMBOL LED 1072 992 R0 SYMATTR InstName D4 SYMATTR Value LUW-W5AP SYMATTR Description Diode SYMATTR Type diode SYMBOL LED 1072 1120 R0 SYMATTR InstName D5 SYMATTR Value LUW-W5AP SYMATTR Description Diode SYMATTR Type diode SYMBOL LED 1040 1184 R180 WINDOW 0 24 64 Left 2 WINDOW 3 24 0 Left 2 SYMATTR InstName D6 SYMATTR Value LUW-W5AP SYMATTR Description Diode SYMATTR Type diode SYMBOL LED 1040 1056 R180 WINDOW 0 24 64 Left 2 WINDOW 3 24 0 Left 2 SYMATTR InstName D7 SYMATTR Value LUW-W5AP SYMATTR Description Diode SYMATTR Type diode SYMBOL LED 1040 928 R180 WINDOW 0 24 64 Left 2 WINDOW 3 24 0 Left 2 SYMATTR InstName D8 SYMATTR Value LUW-W5AP SYMATTR Description Diode SYMATTR Type diode SYMBOL LED 1040 800 R180 WINDOW 0 24 64 Left 2 WINDOW 3 24 0 Left 2 SYMATTR InstName D9 SYMATTR Value LUW-W5AP SYMATTR Description Diode SYMATTR Type diode SYMBOL LED 1040 672 R180 WINDOW 0 24 64 Left 2 WINDOW 3 24 0 Left 2 SYMATTR InstName D10 SYMATTR Value LUW-W5AP SYMATTR Description Diode SYMATTR Type diode SYMBOL res -368 112 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R4 SYMATTR Value 8.2k SYMBOL res -768 112 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 42 93 VTop 2 SYMATTR InstName R5 SYMATTR Value {{(1-ADim)*10000}} SYMBOL res -320 80 R270 WINDOW 0 32 56 VTop 2 WINDOW 3 0 56 VBottom 2 SYMATTR InstName R6 SYMATTR Value 100k SYMBOL cap -640 368 R0 WINDOW 0 41 18 Left 2 SYMATTR InstName C2 SYMATTR Value 10n SYMBOL res -400 384 R0 SYMATTR InstName R7 SYMATTR Value 27k SYMBOL cap -768 416 R0 SYMATTR InstName C3 SYMATTR Value 4.7n SYMBOL res -768 304 R0 SYMATTR InstName R8 SYMATTR Value 30k SYMBOL cap 336 -16 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName C4 SYMATTR Value 1µ SYMBOL ind 208 -96 R270 WINDOW 0 32 56 VTop 2 WINDOW 3 5 56 VBottom 2 SYMATTR InstName L1 SYMATTR Value 12µ SYMBOL res 464 112 R0 SYMATTR InstName R9 SYMATTR Value 10m SYMBOL nmos 272 640 R0 SYMATTR InstName M1 SYMATTR Value BSC159N10LSF SYMBOL nmos 432 -16 R0 SYMATTR InstName M2 SYMATTR Value BSC123N08NS3 SYMBOL schottky 592 -96 R270 WINDOW 0 32 32 VTop 2 WINDOW 3 0 32 VBottom 2 SYMATTR InstName D21 SYMATTR Value B560C SYMATTR Description Diode SYMATTR Type diode SYMBOL cap 736 16 R0 SYMATTR InstName C5 SYMATTR Value 6.8µ SYMBOL res 976 -80 R0 SYMATTR InstName R10 SYMATTR Value 1MEG SYMBOL res 976 64 R0 SYMATTR InstName R11 SYMATTR Value 18k SYMBOL LED 736 608 R0 SYMATTR InstName D11 SYMATTR Value LUW-W5AP SYMATTR Description Diode SYMATTR Type diode SYMBOL LED 736 736 R0 SYMATTR InstName D12 SYMATTR Value LUW-W5AP SYMATTR Description Diode SYMATTR Type diode SYMBOL LED 736 864 R0 SYMATTR InstName D13 SYMATTR Value LUW-W5AP SYMATTR Description Diode SYMATTR Type diode SYMBOL LED 736 992 R0 SYMATTR InstName D14 SYMATTR Value LUW-W5AP SYMATTR Description Diode SYMATTR Type diode SYMBOL LED 736 1120 R0 SYMATTR InstName D15 SYMATTR Value LUW-W5AP SYMATTR Description Diode SYMATTR Type diode SYMBOL LED 704 1184 R180 WINDOW 0 24 64 Left 2 WINDOW 3 24 0 Left 2 SYMATTR InstName D16 SYMATTR Value LUW-W5AP SYMATTR Description Diode SYMATTR Type diode SYMBOL LED 704 1056 R180 WINDOW 0 24 64 Left 2 WINDOW 3 24 0 Left 2 SYMATTR InstName D17 SYMATTR Value LUW-W5AP SYMATTR Description Diode SYMATTR Type diode SYMBOL LED 704 928 R180 WINDOW 0 24 64 Left 2 WINDOW 3 24 0 Left 2 SYMATTR InstName D18 SYMATTR Value LUW-W5AP SYMATTR Description Diode SYMATTR Type diode SYMBOL LED 704 800 R180 WINDOW 0 24 64 Left 2 WINDOW 3 24 0 Left 2 SYMATTR InstName D19 SYMATTR Value LUW-W5AP SYMATTR Description Diode SYMATTR Type diode SYMBOL LED 704 672 R180 WINDOW 0 24 64 Left 2 WINDOW 3 24 0 Left 2 SYMATTR InstName D20 SYMATTR Value LUW-W5AP SYMATTR Description Diode SYMATTR Type diode SYMBOL voltage -256 448 R0 WINDOW 123 0 0 Left 2 WINDOW 39 0 0 Left 2 SYMATTR InstName V2 SYMATTR Value PULSE(0 5 0 1n 1n 1m 2m) SYMBOL res -736 144 R270 WINDOW 0 32 56 VTop 2 WINDOW 3 -10 76 VBottom 2 SYMATTR InstName R12 SYMATTR Value {{ADim}*10000} SYMBOL voltage -1056 384 R0 WINDOW 3 -33 161 Left 2 WINDOW 123 0 0 Left 2 WINDOW 39 0 0 Left 2 SYMATTR Value PULSE(0 1.08 0 15m 1n 0 16m) SYMATTR InstName V3 TEXT -720 -168 Left 2 ;EN/UVLO\nR1 and R2 set start to 10.73 V\nand cutout to 9.65 V TEXT -8 1200 Left 2 !.tran 15m startup TEXT -1088 880 Left 6 ;Boost Converter\nInput 12 V\nOutput 60 V @ 300 mA\n400 kHz TEXT -512 520 Left 2 ;set f to approx\n380 kHz TEXT -560 352 Left 2 ;set startup\ntime to 2 ms TEXT -920 288 Left 2 ;loop\ncompensation TEXT -376 32 Left 2 ;pull-up TEXT 816 -72 Left 2 ;output voltage\nlimit set to\n66.17 V TEXT -864 64 Left 2 !.PARAM ADim=0.01 TEXT -864 8 Left 2 ;10k Potentiometer RECTANGLE Normal -544 224 -992 32 2