Version 4 SHEET 1 5320 2776 WIRE 1584 624 1488 624 WIRE 1760 624 1584 624 WIRE 1952 624 1760 624 WIRE 1968 624 1952 624 WIRE 2064 624 2048 624 WIRE 2192 624 2064 624 WIRE 2400 624 2288 624 WIRE 2496 624 2400 624 WIRE 2592 624 2496 624 WIRE 2672 624 2592 624 WIRE 2784 624 2672 624 WIRE 2880 624 2784 624 WIRE 3008 624 2880 624 WIRE 2784 640 2784 624 WIRE 2880 640 2880 624 WIRE 3008 640 3008 624 WIRE 1920 656 1952 624 WIRE 2096 656 2064 624 WIRE 3152 656 3056 656 WIRE 2592 672 2592 624 WIRE 3152 672 3152 656 WIRE 2272 688 2272 672 WIRE 1760 704 1760 624 WIRE 3072 704 3056 704 WIRE 2784 736 2784 720 WIRE 2880 752 2880 720 WIRE 3008 752 3008 720 WIRE 2672 768 2672 624 WIRE 3152 768 3152 752 WIRE 2496 784 2496 624 WIRE 2176 800 2160 800 WIRE 2272 800 2272 768 WIRE 2272 800 2240 800 WIRE 2784 816 2784 800 WIRE 1584 832 1584 624 WIRE 1920 848 1920 656 WIRE 2096 848 2096 656 WIRE 2272 848 2272 800 WIRE 2400 848 2400 624 WIRE 1760 928 1760 784 WIRE 1840 928 1760 928 WIRE 2592 928 2592 752 WIRE 2592 928 2464 928 WIRE 1584 992 1584 912 WIRE 1632 992 1584 992 WIRE 1760 992 1760 928 WIRE 1760 992 1712 992 WIRE 1840 992 1760 992 WIRE 2672 992 2672 848 WIRE 2672 992 2464 992 WIRE 1584 1056 1584 992 WIRE 1840 1056 1584 1056 WIRE 2496 1056 2496 864 WIRE 2496 1056 2464 1056 WIRE 1584 1072 1584 1056 WIRE 2496 1088 2496 1056 WIRE 2272 1136 2272 1120 WIRE 2032 1152 2032 1120 WIRE 1488 1168 1488 624 WIRE 1584 1168 1584 1152 WIRE 2496 1200 2496 1168 WIRE 2272 1216 2272 1200 WIRE 1488 1264 1488 1248 FLAG 1488 1264 0 FLAG 1488 624 IN FLAG 3008 624 OUT FLAG 3072 704 0 FLAG 1584 1168 0 FLAG 2032 1152 0 FLAG 2272 1216 0 FLAG 2496 1200 0 FLAG 2784 816 0 FLAG 2880 752 0 FLAG 3008 752 0 FLAG 3152 768 0 FLAG 2160 800 0 SYMBOL SW 3008 736 R180 WINDOW 0 -8 104 Right 2 WINDOW 3 -9 2 Right 2 SYMATTR InstName S1 SYMATTR Value SHORT SYMBOL voltage 1488 1152 R0 WINDOW 123 0 0 Left 2 WINDOW 39 0 0 Left 2 SYMATTR Value PWL(0 0 1m 12 20m 12 40m 4 50m 4 70m 12 120m 12 120.2m 80 130m 45 160m 12) SYMATTR InstName V1 SYMBOL voltage 3152 656 R0 WINDOW 123 24 138 Left 2 WINDOW 39 24 117 Left 2 SYMATTR Value PWL(0 0 100m 0 101m 0 120m 0 121m 0) SYMATTR InstName V2 SYMBOL res 1568 816 R0 SYMATTR InstName R6 SYMATTR Value 280K SYMBOL res 1568 1056 R0 SYMATTR InstName R7 SYMATTR Value 100K SYMBOL res 1952 640 R270 WINDOW 0 32 56 VTop 2 WINDOW 3 0 56 VBottom 2 SYMATTR InstName RSNS SYMATTR Value 20m SYMBOL res 2256 672 R0 SYMATTR InstName R3 SYMATTR Value 10 SYMBOL res 2480 768 R0 SYMATTR InstName R1 SYMATTR Value 59K SYMBOL res 2480 1072 R0 SYMATTR InstName R2 SYMATTR Value 4.99K SYMBOL cap 2768 736 R0 SYMATTR InstName C1 SYMATTR Value 22µ SYMBOL cap 2256 1136 R0 SYMATTR InstName C2 SYMATTR Value 1µ SYMBOL res 2768 624 R0 SYMATTR InstName R10 SYMATTR Value .5 SYMBOL res 2576 656 R0 SYMATTR InstName R8 SYMATTR Value 27K SYMBOL res 2656 752 R0 SYMATTR InstName R9 SYMATTR Value 27K SYMBOL res 1744 688 R0 SYMATTR InstName R4 SYMATTR Value 1Meg SYMBOL nmos 2192 672 R270 WINDOW 0 58 45 VTop 2 WINDOW 3 -21 68 VLeft 2 SYMATTR InstName Q1 SYMATTR Value IRF1310 SYMBOL res 2864 624 R0 SYMATTR InstName Rload SYMATTR Value 50 SYMBOL res 1616 1008 R270 WINDOW 0 32 56 VTop 2 WINDOW 3 0 56 VBottom 2 SYMATTR InstName R5 SYMATTR Value 1Meg SYMBOL LT4356-2 2144 1008 R0 SYMATTR InstName U1 SYMBOL cap 2240 784 R90 WINDOW 3 32 32 VTop 2 WINDOW 0 0 32 VBottom 2 SYMATTR Value .0068µ SYMATTR InstName C3 TEXT 2632 1152 Left 2 !.tran 240m TEXT 2632 1176 Left 2 !.model SHORT SW(Ron=10m Roff=1G Vt=0.5 Vh=-.1)