Version 4
SHEET 1 880 680
WIRE 80 96 16 96
WIRE 128 96 80 96
WIRE 400 96 320 96
WIRE 400 112 400 96
WIRE 16 192 16 176
WIRE 128 192 16 192
WIRE 352 192 320 192
WIRE 400 192 352 192
WIRE 16 208 16 192
WIRE 352 208 352 192
FLAG 352 208 0
FLAG 16 208 0
FLAG 80 96 v_ak
SYMBOL current 16 176 R180
WINDOW 0 24 80 Left 2
WINDOW 3 -68 -59 Left 2
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName I1
SYMATTR Value PWL(0 0 1 1)
SYMBOL voltage 400 96 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V1
SYMATTR Value 5
SYMBOL sfh6156 224 144 R0
SYMATTR InstName U1
TEXT 16 8 Left 2 !.tran 60m