Version 4
SHEET 1 880 680
WIRE 160 96 96 96
WIRE 288 96 192 96
WIRE 96 176 96 96
WIRE 96 176 64 176
WIRE 160 176 96 176
WIRE 288 176 192 176
WIRE 64 192 64 176
WIRE 64 304 64 272
FLAG 64 304 0
FLAG 64 176 IN
FLAG 288 176 Cycle_Down
FLAG -80 176 $G_Vdd
FLAG -80 240 $G_Vss
FLAG 288 96 Cycle_Up
SYMBOL tcycle_down 176 176 R0
WINDOW 0 -15 -34 Left 0
SYMATTR InstName Xdown
SYMBOL voltage 64 176 R0
WINDOW 3 24 104 Invisible 0
SYMATTR Value 0V
SYMATTR InstName V1
SYMBOL tpower -80 208 R0
SYMATTR InstName X2
SYMBOL tcycle_up 176 96 R0
WINDOW 0 -16 -36 Left 0
SYMATTR InstName Xup
TEXT 88 288 Left 0 !.dc v1 -5 5 0.1
