Version 4 SHEET 1 6404 1204 WIRE -16 -480 -368 -480 WIRE 64 -480 -16 -480 WIRE 128 -480 64 -480 WIRE 512 -480 224 -480 WIRE 528 -480 512 -480 WIRE 624 -480 608 -480 WIRE 656 -480 624 -480 WIRE 1040 -480 752 -480 WIRE 1168 -480 1040 -480 WIRE 1296 -480 1168 -480 WIRE -368 -464 -368 -480 WIRE 1168 -464 1168 -480 WIRE 1296 -464 1296 -480 WIRE 1456 -448 1344 -448 WIRE -16 -432 -16 -480 WIRE 1456 -432 1456 -448 WIRE 736 -384 736 -432 WIRE -368 -368 -368 -384 WIRE 1168 -368 1168 -400 WIRE 1296 -368 1296 -384 WIRE 1456 -336 1456 -352 WIRE 224 -272 -368 -272 WIRE 304 -272 224 -272 WIRE 368 -272 304 -272 WIRE 512 -272 512 -480 WIRE 512 -272 464 -272 WIRE -368 -256 -368 -272 WIRE 736 -256 736 -304 WIRE 752 -256 736 -256 WIRE 848 -256 832 -256 WIRE 928 -256 912 -256 WIRE 224 -224 224 -272 WIRE 1040 -192 1040 -480 WIRE 1040 -192 816 -192 WIRE -368 -160 -368 -176 WIRE 512 -112 512 -272 WIRE 512 -112 -368 -112 WIRE 1056 -112 512 -112 WIRE -368 -80 -368 -112 WIRE -16 -80 -16 -368 WIRE 64 -80 64 -480 WIRE 144 -80 144 -432 WIRE 224 -80 224 -160 WIRE 304 -80 304 -272 WIRE 384 -80 384 -224 WIRE 512 -80 512 -112 WIRE 624 -80 624 -480 WIRE 736 -80 736 -256 WIRE 816 -80 816 -192 WIRE -368 48 -368 0 WIRE -240 48 -368 48 WIRE -80 48 -240 48 WIRE 896 48 880 48 WIRE 1056 48 1056 -112 WIRE 1056 48 976 48 WIRE -368 64 -368 48 WIRE -240 96 -240 48 WIRE -80 128 -144 128 WIRE 944 128 880 128 WIRE 1056 128 1056 48 WIRE 1056 128 1024 128 WIRE -368 160 -368 144 WIRE -240 192 -240 160 WIRE -144 208 -144 192 WIRE -80 208 -144 208 WIRE 912 208 880 208 WIRE 992 208 976 208 WIRE -144 240 -144 208 WIRE -80 288 -96 288 WIRE 896 288 880 288 FLAG 928 -256 0 FLAG 992 208 0 FLAG -144 240 0 FLAG -368 -368 0 FLAG -368 -160 0 FLAG -368 -480 IN1 FLAG -368 -272 IN2 FLAG 1296 -480 OUT FLAG 1168 -368 0 FLAG 1296 -368 0 FLAG 1344 -400 0 FLAG 1456 -336 0 FLAG 896 288 0 FLAG -96 288 0 FLAG -368 160 0 FLAG -240 192 0 SYMBOL nmos 656 -432 R270 WINDOW 0 52 47 VTop 2 WINDOW 3 -16 79 VLeft 2 SYMATTR InstName Q3 SYMATTR Value Si7386DP SYMBOL nmos 224 -432 M270 WINDOW 0 54 45 VTop 2 WINDOW 3 -17 73 VLeft 2 SYMATTR InstName Q1 SYMATTR Value Si7386DP SYMBOL cap -32 -432 R0 SYMATTR InstName C1 SYMATTR Value .1µ SYMBOL res 992 32 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R6 SYMATTR Value 100K SYMBOL res 1040 112 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R7 SYMATTR Value 100K SYMBOL res 736 -272 M90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R3 SYMATTR Value 47 SYMBOL res 720 -288 M180 WINDOW 0 36 76 Left 2 WINDOW 3 36 40 Left 2 SYMATTR InstName R2 SYMATTR Value 10 SYMBOL cap 848 -272 M90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName C3 SYMATTR Value .015µ SYMBOL cap 976 192 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName C6 SYMATTR Value .1µ SYMBOL cap 208 -224 R0 SYMATTR InstName C2 SYMATTR Value .1µ SYMBOL res -384 16 M180 WINDOW 0 36 76 Left 2 WINDOW 3 36 40 Left 2 SYMATTR InstName R5 SYMATTR Value 137K SYMBOL res -384 160 M180 WINDOW 0 36 76 Left 2 WINDOW 3 36 40 Left 2 SYMATTR InstName R4 SYMATTR Value 20K SYMBOL cap -256 96 R0 SYMATTR InstName C4 SYMATTR Value .01µ SYMBOL cap -160 128 R0 WINDOW 0 29 19 Left 2 WINDOW 3 24 54 Left 2 SYMATTR InstName C5 SYMATTR Value .1µ SYMBOL cap 1152 -464 R0 SYMATTR InstName C7 SYMATTR Value 100µ SYMBOL voltage -368 -480 R0 WINDOW 123 24 146 Left 2 WINDOW 39 24 125 Left 2 SYMATTR InstName V1 SYMATTR Value PWL(0 0 10u 0 +1u 11) SYMBOL voltage -368 -272 R0 WINDOW 123 24 146 Left 2 WINDOW 39 24 125 Left 2 SYMATTR InstName V2 SYMATTR Value PWL(0 0 10u 0 +1u 12) SYMBOL res 624 -496 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R1 SYMATTR Value .006 SYMBOL nmos 464 -224 M270 WINDOW 0 54 45 VTop 2 WINDOW 3 -17 73 VLeft 2 SYMATTR InstName Q2 SYMATTR Value Si7386DP SYMBOL sw 1296 -368 R180 WINDOW 0 -23 102 Right 2 WINDOW 3 -26 2 Right 2 SYMATTR InstName S1 SYMATTR Value SCSW SYMBOL voltage 1456 -448 R0 WINDOW 123 0 0 Left 2 WINDOW 39 0 0 Left 2 SYMATTR InstName V3 SYMATTR Value PWL(0 0 300m 0 +1m 1 +10m 1 +1m 0) SYMBOL LTC4227-2 16 144 R0 SYMATTR InstName U1 TEXT 1184 336 Left 2 !.tran 1600m TEXT 1064 240 Left 2 !.model SCSW SW(Ron=10m Roff=1.7 Vt=.5 Vh=-.4)