Version 4 SHEET 1 1036 1252 WIRE -288 544 -480 544 WIRE -80 544 -288 544 WIRE 48 544 -80 544 WIRE 208 544 112 544 WIRE 240 544 208 544 WIRE -80 640 -80 544 WIRE 48 640 -80 640 WIRE 240 640 240 544 WIRE 240 640 112 640 WIRE -480 672 -480 544 WIRE 240 672 240 640 WIRE -288 688 -288 544 WIRE -80 768 -80 640 WIRE 48 768 -80 768 WIRE 240 768 240 752 WIRE 240 768 112 768 WIRE 112 848 0 848 WIRE 192 848 112 848 WIRE 0 880 0 848 WIRE 112 880 112 848 WIRE -480 896 -480 752 WIRE -288 896 -288 752 WIRE 240 896 240 864 WIRE 320 896 240 896 WIRE 448 896 400 896 WIRE 448 912 448 896 WIRE 0 976 0 960 WIRE 112 976 112 960 WIRE 240 976 240 896 WIRE 448 992 448 912 WIRE 240 1120 240 1056 WIRE 448 1120 448 1056 FLAG -480 896 0 FLAG 0 976 0 FLAG 240 1120 0 FLAG 448 1120 0 FLAG 112 976 0 FLAG 448 912 ADC IOPIN 448 912 Out FLAG 208 544 LED_- FLAG -288 896 0 SYMBOL voltage 0 864 R0 WINDOW 123 0 0 Left 2 WINDOW 39 -225 143 Left 2 WINDOW 3 -178 153 Left 2 SYMATTR Value PULSE(0 5 1n 10n 10n {g/f} {1/f}) SYMATTR InstName V3 SYMBOL voltage -480 656 R0 WINDOW 3 14 104 Left 2 WINDOW 123 0 0 Left 2 WINDOW 39 14 136 Left 2 SYMATTR Value 20V SYMATTR SpiceLine Rser=20m SYMATTR InstName V4 SYMBOL nmos 192 768 R0 SYMATTR InstName M1 SYMATTR Value IRLHM630 SYMBOL res 224 960 R0 SYMATTR InstName R1 SYMATTR Value 0.5 SYMBOL ind 224 656 R0 SYMATTR InstName L2 SYMATTR Value 100µ SYMATTR SpiceLine Ipk=1.1 Rser=0.21 Rpar=15910 Cpar=3.64p SYMBOL cap 48 656 R270 WINDOW 0 32 32 VTop 2 WINDOW 3 0 32 VBottom 2 SYMATTR InstName C1 SYMATTR Value 330µ SYMBOL res 416 880 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R2 SYMATTR Value 100 SYMBOL cap 432 992 R0 SYMATTR InstName C3 SYMATTR Value 4.7n SYMBOL schottky 112 752 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName D3 SYMATTR Value MBRS130L SYMATTR Description Diode SYMATTR Type diode SYMBOL res 96 864 R0 SYMATTR InstName R3 SYMATTR Value 10k SYMBOL diode 48 560 R270 WINDOW 0 32 32 VTop 2 WINDOW 3 0 32 VBottom 2 SYMATTR InstName D2 SYMATTR Value LED SYMBOL cap -304 688 R0 SYMATTR InstName C2 SYMATTR Value 100µ TEXT -328 1192 Left 2 !.model LED D(Ron = 2.5,Vfwd= 9.6) TEXT -488 1160 Left 2 !.tran 1 TEXT -328 1112 Left 2 !.param f = 37.5k TEXT -328 1152 Left 2 !.param g = 0.5