Version 4
SHEET 1 880 680
WIRE 128 384 128 320
WIRE -80 288 -80 320
WIRE -80 320 128 320
WIRE 128 320 128 256
WIRE -80 208 -80 80
WIRE -80 80 112 80
WIRE 128 80 128 160
WIRE 112 80 128 80
FLAG 128 384 0
FLAG 112 80 n1
SYMBOL josephson_junction 128 208 R0
WINDOW 0 67 41 Left 0
WINDOW 39 67 13 Left 0
SYMATTR InstName X1
SYMATTR SpiceLine Ic=35u Rq=1 phase=0
SYMBOL bi2 -80 208 R0
SYMATTR InstName B1
SYMATTR Value I=time*({Imax}-30u)/{Tmax}+30u
TEXT -80 456 Left 0 !.param Imax=45u Tmax=2n
TEXT -64 424 Left 0 !.tran 0 2n 0 1p