Version 4 SHEET 1 1160 1096 WIRE -256 -80 -672 -80 WIRE -16 -80 -256 -80 WIRE 80 -80 -16 -80 WIRE 288 -80 176 -80 WIRE 320 -80 288 -80 WIRE 416 -80 400 -80 WIRE 560 -80 416 -80 WIRE 688 -80 560 -80 WIRE 560 -64 560 -80 WIRE 688 -64 688 -80 WIRE 160 -16 160 -32 WIRE 560 32 560 0 WIRE 688 32 688 16 WIRE 160 80 160 64 WIRE 208 80 160 80 WIRE -16 144 -16 -80 WIRE -256 192 -256 -80 WIRE -16 256 -16 224 WIRE 160 256 160 80 WIRE 288 256 288 -80 WIRE 416 256 416 -80 WIRE -256 352 -256 272 WIRE -256 352 -368 352 WIRE -128 352 -256 352 WIRE -80 352 -128 352 WIRE 512 352 480 352 WIRE 608 352 592 352 WIRE -368 368 -368 352 WIRE -256 368 -256 352 WIRE -368 448 -368 432 WIRE -256 448 -256 432 WIRE -128 448 -128 352 WIRE -80 448 -128 448 WIRE 496 448 480 448 WIRE 128 528 128 512 WIRE 320 528 320 512 WIRE -672 608 -672 -80 WIRE 320 608 320 592 WIRE -128 640 -128 448 WIRE 608 640 608 352 WIRE 608 640 -128 640 WIRE -672 704 -672 688 FLAG -672 704 0 FLAG 560 32 0 FLAG 688 32 0 FLAG 320 608 0 FLAG 128 528 0 FLAG -256 448 0 FLAG -368 448 0 FLAG 688 -80 OUT FLAG -672 -80 IN FLAG 208 224 0 FLAG 496 448 0 SYMBOL res 144 -32 R0 SYMATTR InstName R1 SYMATTR Value 10 SYMBOL res 304 -64 R270 WINDOW 0 32 56 VTop 2 WINDOW 3 0 56 VBottom 2 SYMATTR InstName R2 SYMATTR Value 10m SYMBOL nmos 80 -32 R270 WINDOW 0 57 42 VTop 2 WINDOW 3 -14 72 VLeft 2 SYMATTR InstName Q1 SYMATTR Value FDB33N25 SYMBOL cap 304 528 R0 SYMATTR InstName C2 SYMATTR Value 0.2µ SYMBOL cap 544 -64 R0 SYMATTR InstName Cload SYMATTR Value 22µ SYMBOL voltage -672 592 R0 WINDOW 123 24 138 Left 2 WINDOW 39 24 117 Left 2 SYMATTR Value PWL(0 0 20u 0 50u 12 100m 12 101m 80 200m 80 201m 12 10 12 +100n 0 +100m 0 +100n 12) SYMATTR InstName V1 SYMBOL zener -272 432 M180 WINDOW 0 24 64 Left 2 WINDOW 3 24 0 Left 2 SYMATTR InstName D1 SYMATTR Value 1N5371B SYMBOL cap -384 368 R0 SYMATTR InstName C4 SYMATTR Value .1µ SYMBOL res 672 -80 R0 SYMATTR InstName Rload SYMATTR Value 100 SYMBOL res 608 336 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R7 SYMATTR Value 40K SYMBOL cap 192 80 R0 WINDOW 3 39 35 Left 2 SYMATTR Value 47n SYMATTR InstName C1 SYMBOL res 192 128 R0 WINDOW 3 39 67 Left 2 SYMATTR Value 100 SYMATTR InstName R4 SYMBOL LTC4380-3 208 384 R0 SYMATTR InstName U1 SYMBOL res -272 176 R0 SYMATTR InstName R3 SYMATTR Value 10K SYMBOL res -32 128 R0 SYMATTR InstName R5 SYMATTR Value 80K TEXT 688 656 Left 2 !.tran 12