Version 4 SHEET 1 1364 772 WIRE 880 -128 64 -128 WIRE 128 -64 -112 -64 WIRE 656 -64 128 -64 WIRE 64 16 64 -128 WIRE 128 112 128 -64 WIRE 224 112 128 112 WIRE 880 112 880 -128 WIRE 880 112 528 112 WIRE 992 112 880 112 WIRE -112 128 -112 -64 WIRE -112 128 -192 128 WIRE -192 160 -192 128 WIRE 224 160 0 160 WIRE 768 160 528 160 WIRE 880 160 880 112 WIRE -112 176 -112 128 WIRE 0 176 0 160 WIRE 64 208 64 96 WIRE 224 208 64 208 WIRE 656 208 656 -64 WIRE 656 208 528 208 WIRE 224 256 112 256 WIRE 656 256 528 256 WIRE 656 288 656 256 WIRE 880 288 880 240 WIRE 880 288 656 288 WIRE 112 320 112 256 WIRE 880 336 880 288 FLAG 992 192 0 FLAG 880 400 0 FLAG -192 240 0 FLAG -112 240 0 FLAG 768 240 0 FLAG 0 256 0 FLAG 112 320 0 SYMBOL res 48 0 R0 WINDOW 0 -26 32 Left 2 WINDOW 3 -34 100 Left 2 SYMATTR InstName R6 SYMATTR Value 10k SYMBOL res -208 144 R0 WINDOW 0 -49 33 Left 2 WINDOW 3 -55 70 Left 2 SYMATTR InstName RL SYMATTR Value 100k SYMBOL res 864 144 R0 SYMATTR InstName Rt SYMATTR Value 1k SYMBOL cap 864 336 R0 WINDOW 3 28 49 Left 2 SYMATTR Value 10n SYMATTR InstName Ct SYMBOL cap -128 176 R0 WINDOW 0 -14 8 Left 2 WINDOW 3 -1 104 Left 2 SYMATTR InstName CL SYMATTR Value 10n SYMBOL voltage 992 96 R0 WINDOW 123 0 0 Left 2 WINDOW 39 0 0 Left 2 SYMATTR InstName Vsupply SYMATTR Value 10 SYMBOL voltage 768 144 R0 WINDOW 123 0 0 Left 2 WINDOW 39 0 0 Left 2 SYMATTR InstName Vin SYMATTR Value 2 SYMBOL res -16 160 R0 WINDOW 0 -46 28 Left 2 WINDOW 3 -46 67 Left 2 SYMATTR InstName Rs SYMATTR Value 10k SYMBOL LM331m1 368 176 R0 SYMATTR InstName LM331m1 TEXT -240 408 Left 2 !.tran 0 500u 100u 2u startup TEXT -240 376 Left 2 !.ic v(ncl)=0 v(nct)=0