On Sunday 12 February 2006 22:12, John Steele Scott wrote: > I have made a small netlist to simulate an active rectifier > which uses National Semiconductor's LMC6482A. The model is > available from > <http://www.national.com/models/spice/LM/LMC6482A.MOD>. > > When I try to simulate my circuit, I get the following > errors: > > *//////////////////////////////////////////////////////////// >////////// G4 98 16 POLY(2) 1 49 2 49 0 2.812E-8 2.812E-8 > ^ ? need 1 more nodes
POLY(2) is not supported. Give me a couple of days. I will come up with a work-around. > .MODEL MOSFET PMOS(VTO=0 KP=1.842E-3) > ^ ? no level specified, using 1 Just a warning. Spice would give you the same warning. You can ignore it, but it is better to add the parameter "level = 1" to the model statement. > M2.X_U2, MOSFET > model and device parameters are incompatible You didn't specify a length and width. It should substitute from the option DEFW and DEFL. You found a bug, which happened when the "binning" feature was added. The binning check happens before the default values are filled in. Now that I know about it I will fix it. The work around is to specify length and width. The value for both should be 100u. What they did is bad practice, especially with a packaged model. If you change the defaults, through the options command or .options statement, the model will be changed in a way that its creator did not anticipate. Being able to change the defaults through the options statement is a dumb idea, but I included it for Spice compatibility. > In case it matters, the netlist which I am using this circuit > in is below. This is based on an article at > <http://www.edn.com/article/CA6250014.html> "Precision > full-wave signal rectifier needs no diodes". It uses the op-amp's clipping to produce rectification. I am not sure how "precise" that is. _______________________________________________ Help-gnucap mailing list [email protected] http://lists.gnu.org/mailman/listinfo/help-gnucap
