Version 4 SHEET 1 1556 1668 WIRE 144 -416 -16 -416 WIRE 784 -416 208 -416 WIRE -208 -384 -480 -384 WIRE 176 -352 16 -352 WIRE -336 -320 -384 -320 WIRE -208 -320 -208 -384 WIRE -208 -320 -272 -320 WIRE -16 -320 -16 -416 WIRE -16 -320 -208 -320 WIRE 16 -320 16 -352 WIRE 16 -320 -16 -320 WIRE 176 -320 176 -352 WIRE -208 -272 -208 -320 WIRE -480 -208 -480 -384 WIRE -384 -208 -384 -320 WIRE 16 -208 16 -320 WIRE 48 -208 16 -208 WIRE 368 -208 304 -208 WIRE 464 -208 448 -208 WIRE -480 -96 -480 -144 WIRE -384 -96 -384 -128 WIRE 176 -80 176 -96 WIRE 176 -80 -64 -80 WIRE 176 32 16 32 WIRE -16 64 -16 -320 WIRE 16 64 16 32 WIRE 16 64 -16 64 WIRE 176 64 176 32 WIRE 16 176 16 64 WIRE 48 176 16 176 WIRE 368 176 304 176 WIRE 464 176 464 -208 WIRE 464 176 448 176 WIRE 608 176 464 176 WIRE 736 176 704 176 WIRE 784 176 784 -416 WIRE 784 176 736 176 WIRE 912 176 784 176 WIRE 1008 176 992 176 WIRE 1024 176 1008 176 WIRE 1168 176 1104 176 WIRE 1312 176 1248 176 WIRE 1008 192 1008 176 WIRE 736 208 736 176 WIRE 1312 224 1312 176 WIRE 464 256 464 176 WIRE 1008 272 1008 256 WIRE 688 304 688 224 WIRE 736 304 736 272 WIRE 736 304 688 304 WIRE 1168 336 1136 336 WIRE 1312 336 1312 288 WIRE 1312 336 1248 336 WIRE 1136 416 1136 336 WIRE -64 432 -64 -80 WIRE 176 432 176 288 WIRE 176 432 -64 432 WIRE 256 432 176 432 WIRE 464 432 464 336 WIRE 464 432 336 432 WIRE 784 432 784 176 WIRE 784 432 464 432 WIRE -192 464 -192 416 WIRE -656 592 -672 592 WIRE -624 592 -656 592 WIRE -528 592 -544 592 WIRE -432 592 -448 592 WIRE -192 592 -192 544 WIRE -192 592 -240 592 WIRE -80 608 -96 608 WIRE 16 608 0 608 WIRE 112 608 96 608 WIRE 416 608 416 576 WIRE 416 608 368 608 WIRE -656 688 -656 592 WIRE -432 688 -656 688 WIRE 112 688 -240 688 WIRE 416 688 416 608 WIRE 416 688 368 688 WIRE 112 768 48 768 WIRE 688 768 688 304 WIRE 688 768 368 768 WIRE 48 800 48 768 WIRE 240 848 240 816 WIRE 240 848 144 848 WIRE 48 880 48 864 WIRE 144 880 144 848 WIRE 144 880 48 880 WIRE 240 880 240 848 WIRE 240 880 208 880 FLAG -384 -96 0 FLAG 1136 416 0 FLAG -480 -96 0 FLAG 1008 272 0 FLAG 208 880 0 FLAG -96 608 0 FLAG -208 -272 +V FLAG 416 576 +V FLAG -192 416 +V FLAG -672 592 0 SYMBOL PowerProducts\\LT3083 176 176 R0 SYMATTR InstName U1 SYMBOL PowerProducts\\LT3083 176 -208 R0 SYMATTR InstName U2 SYMBOL voltage -384 -224 R0 WINDOW 123 0 0 Left 2 WINDOW 39 0 0 Left 2 SYMATTR InstName V1 SYMATTR Value 24 SYMBOL res 464 -224 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R1 SYMATTR Value 330m SYMBOL res 464 160 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R2 SYMATTR Value 330m SYMBOL nmos 608 224 R270 SYMATTR InstName M1 SYMATTR Value IRFH6200 SYMBOL res 352 416 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R3 SYMATTR Value 5k SYMBOL cap -496 -208 R0 SYMATTR InstName C3 SYMATTR Value 0.24 SYMATTR SpiceLine V=27.5 Rser=50m SYMBOL ind 1008 160 R90 WINDOW 0 5 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName L1 SYMATTR Value 47n SYMBOL ind 1120 160 R90 WINDOW 0 5 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName L2 SYMATTR Value 47n SYMBOL cap 992 192 R0 SYMATTR InstName C4 SYMATTR Value 1µ SYMBOL cap 208 -432 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName C1 SYMATTR Value 4.7µ SYMBOL res 1264 160 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R5 SYMATTR Value 1 SYMBOL res 1264 320 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R6 SYMATTR Value 1 SYMBOL LED 1296 224 R0 SYMATTR InstName D3 SYMATTR Value W5AP-LZMZ-5K8L SYMATTR Description Diode SYMATTR Type diode SYMBOL diode -336 -304 R270 WINDOW 0 32 32 VTop 2 WINDOW 3 0 32 VBottom 2 SYMATTR InstName D1 SYMATTR Value MUR460 SYMBOL res 448 240 R0 SYMATTR InstName R4 SYMATTR Value 10k SYMBOL PowerProducts\\LT1910 240 688 R0 SYMATTR InstName U3 SYMBOL cap 64 864 R180 WINDOW 0 24 56 Left 2 WINDOW 3 24 8 Left 2 SYMATTR InstName C2 SYMATTR Value 10µ SYMBOL res 112 592 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R8 SYMATTR Value 5.1k SYMBOL voltage 16 608 R90 WINDOW 123 0 0 Left 2 WINDOW 39 0 0 Left 2 SYMATTR InstName V4 SYMATTR Value 5 SYMBOL zener 720 208 R0 SYMATTR InstName D2 SYMATTR Value BZX84C15L SYMATTR Description Diode SYMATTR Type diode SYMBOL Optos\\PC817A -336 640 R0 SYMATTR InstName U4 SYMBOL res -176 560 R180 WINDOW 0 36 76 Left 2 WINDOW 3 36 40 Left 2 SYMATTR InstName R7 SYMATTR Value 100k SYMBOL voltage -528 592 R90 WINDOW 3 -89 -87 VRight 2 WINDOW 123 0 0 Left 2 WINDOW 39 0 0 Left 2 SYMATTR InstName V2 SYMATTR Value PULSE(0 5 0 0 0 1m 5m) SYMBOL res -432 576 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R9 SYMATTR Value 220 TEXT -64 512 Left 2 !.tran 100m TEXT 936 80 Left 2 ;Optional T-filter TEXT 232 368 Left 2 ;Potentiometer TEXT -656 -40 Left 2 ;Low ESR 50mOhms SuperCaps 27.5V