Version 4 SHEET 1 944 680 WIRE 32 32 -96 32 WIRE -96 64 -96 32 WIRE 32 80 32 32 WIRE -96 192 -96 144 WIRE 32 192 32 160 FLAG 32 192 0 FLAG -96 192 0 SYMBOL voltage 32 64 R0 SYMATTR InstName V1 SYMATTR Value PWL(0 0 9.9u 0 10u 5 19.9u 5 20u 0 29.9u 0 30u 5 39.9u 5 40u 0 49.9u 0) SYMBOL res -112 48 R0 SYMATTR InstName R1 SYMATTR Value 100k TEXT -96 -72 Left 0 !.tran 0 80u 0 0.05u\n.options plotwinsize=0