Version 4 SHEET 1 880 680 WIRE -160 -256 -272 -256 WIRE 48 -256 -160 -256 WIRE 208 -256 48 -256 WIRE 272 -256 208 -256 WIRE 432 -256 272 -256 WIRE 560 -256 432 -256 WIRE 656 -256 560 -256 WIRE 656 -224 656 -256 WIRE 560 -208 560 -256 WIRE 560 -112 560 -128 WIRE 560 -112 128 -112 WIRE 48 -80 48 -256 WIRE -160 -64 -160 -256 WIRE -112 -64 -160 -64 WIRE -160 -32 -160 -64 WIRE 560 -32 560 -48 WIRE -112 16 -112 -64 WIRE 128 16 128 -112 WIRE 560 48 560 32 WIRE 272 112 272 -256 WIRE 560 128 560 112 WIRE -272 160 -272 -256 WIRE 432 160 432 -256 WIRE 432 240 432 224 WIRE 480 240 432 240 WIRE 560 240 560 192 WIRE 656 240 656 -160 WIRE 656 240 560 240 WIRE 208 256 208 -256 WIRE 432 256 432 240 WIRE -160 272 -160 64 WIRE -112 272 -160 272 WIRE 48 272 48 0 WIRE 48 272 -32 272 WIRE 176 272 48 272 WIRE 272 288 272 192 WIRE 272 288 240 288 WIRE 288 288 272 288 WIRE -160 304 -160 272 WIRE 128 304 128 96 WIRE 176 304 128 304 WIRE 368 336 368 288 WIRE 384 336 368 336 WIRE -272 432 -272 240 WIRE -160 432 -160 384 WIRE -160 432 -272 432 WIRE 208 432 208 320 WIRE 208 432 -160 432 WIRE 432 432 432 352 WIRE 432 432 208 432 FLAG -160 432 0 SYMBOL MyOpamps\\LM339 208 224 R0 SYMATTR InstName U1 SYMBOL nmos 384 256 R0 SYMATTR InstName M1 SYMATTR Value IRF7201 SYMBOL schottky 448 224 R180 WINDOW 0 24 72 Left 0 WINDOW 3 24 0 Left 0 SYMATTR InstName D1 SYMATTR Value SS24 SYMATTR Description Diode SYMATTR Type diode SYMBOL ind 576 224 R90 WINDOW 0 5 56 VBottom 0 WINDOW 3 32 56 VTop 0 SYMATTR InstName L1 SYMATTR Value 220µ SYMATTR SpiceLine Rser=.2 SYMBOL LED 544 128 R0 SYMATTR InstName D4 SYMATTR Value LXHL-BW02 SYMBOL res 544 -224 R0 SYMATTR InstName R1 SYMATTR Value 1.2 SYMBOL res 256 96 R0 SYMATTR InstName R2 SYMATTR Value 10k SYMBOL res 384 272 R90 WINDOW 0 0 56 VBottom 0 WINDOW 3 32 56 VTop 0 SYMATTR InstName R3 SYMATTR Value 100 SYMBOL res -16 256 R90 WINDOW 0 0 56 VBottom 0 WINDOW 3 32 56 VTop 0 SYMATTR InstName R4 SYMATTR Value 10k SYMBOL res 64 16 R180 WINDOW 0 36 76 Left 0 WINDOW 3 36 40 Left 0 SYMATTR InstName R5 SYMATTR Value 10k SYMBOL res -144 400 R180 WINDOW 0 36 76 Left 0 WINDOW 3 36 40 Left 0 SYMATTR InstName R6 SYMATTR Value 4k7 SYMBOL res 144 112 R180 WINDOW 0 36 76 Left 0 WINDOW 3 36 40 Left 0 SYMATTR InstName R7 SYMATTR Value 1k SYMBOL Misc\\TL431 -160 16 R0 SYMATTR InstName U2 SYMBOL voltage -272 144 R0 WINDOW 123 0 0 Left 0 WINDOW 39 0 0 Left 0 SYMATTR InstName V1 SYMATTR Value 24 SYMBOL LED 544 48 R0 SYMATTR InstName D2 SYMATTR Value LXHL-BW02 SYMBOL LED 544 -32 R0 SYMATTR InstName D3 SYMATTR Value LXHL-BW02 SYMBOL LED 544 -112 R0 SYMATTR InstName D5 SYMATTR Value LXHL-BW02 SYMBOL cap 640 -224 R0 SYMATTR InstName C1 SYMATTR Value 100µ SYMATTR SpiceLine Rser=.1 TEXT -298 482 Left 0 !.tran 100m uic