[Bug-gnucap] error with current-mirror

[Michael De Nil]

Hey all

While simulating some current-mirror circuits, I got stuck on some weird
error... I don't know if this is a bug, non-implemented or just some
stupid mistake of myselve ;)

Below I pasted the error and my circuit. I tested this on gnucap 0.33 on
 a debian and a gentoo machine.


#Time       I(Rl)
did not converge
 0.        -0.071605
very backward time step
convergence failure (itl4)
zero time step
internal error: step control (adt=1e-12,rdt=-6.10352e-13)
time0=2.2207e-12  time1=1.2207e-12  rtime=6.10352e-13



This is my circuit:

address@hidden:~/ef$ cat ef.ckt
Emitter Follower

.include ca3046.mdl

Vcc 66  0       10
Vee     0       99      10
Vs      11      0       SIN(0 1 1k 0)

Q1      66      11      13      0       CA3046
Q2      13      12      99      0       CA3046
Q3      12      12      99      0       CA3046

R1      66      12      199
Rl      13      0       100

.print tran I(Rl)
.tran 0 2e-3 1e-6 > ef.dat



hf

michael


-- 

Michael De Nil --- address@hidden
Linux lisa.flex-it.be running 48 days