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BTW,.option Noopiter in LTspice skips Direct Newton-Raphson (NR) iterations to calculate the ITS/DC operating point. Using default settings, LTspice will try Direct NR to calculate the ITS/DC

We know exactly what ngspice is doing: (reading the source of the intrinsic model implementation, it is the standard DMOS and discrete SPICE diode model but has a thermal output node). According to

Ok yes, for transient analysis it is supposed to work that way. Therefore, at the end of transient analysis, there will be a total number of iterations done (some associated with ITS calculation and

I am uncertain what you suggested.? Why would either simulator use a "small signal linear equivalent circuit" for the transient simulation of something which is or might? be nonlinear?? Shouldn't

That is what I heard.? BUT -- Is it the same as LTspice's VDMOS?? ?That is, did ngspice try to copy LTspice's VDMOS?? How successfully did they copy LTspice's VDMOS? Or does ngspice do a

Thanks Andy, that's the point indeed ! I downloaded the following IRF510 model from http://waynestegall.com/audio/spice-models/onebendamp2/ampmoscfb2.txt .MODEL IRF510 NMOS LEVEL=3 VTO=3.699 KP=20.82U

NGSPICE has had a VDMOS model since release 32 (current is 44.2). -marcel

Carlo, did you have succcess finding the ngspice user group?? (Not the brand new "AllSpice" group.) Andy

Carlo, I'm sorry that I am not currently able to give you direct help with the ngspice part of your question.? But here is another thing to consider. It looks like you used LTspice's schematic and

FYI, LTspice ignores the first parameter of the .TRAN command.? Therefore, ".tran 100n 10m" is identical to ".tran 0 10m" or ".tran 10m 10m".? In the old days of SPICE, the first parameter was the

Carlo, Remember that uploaded files should be uploaded to the "Temp" directory only.? As it says, "Do not upload your files here" where 'here' is the top-level directory -- and "Click 'Temp' first,

Why do you say that it does not allow you to sort bandwidth or slew rate columns?? It works for me.? Did you click on the up- and down-arrows at the top of the columns?? Was there something wrong

I have tested it, and it seems to work quite well. But read the data sheet with care. -- This email has been checked for viruses by AVG antivirus software. www.avg.com

During the search, I heard someone in a forum who did and didn't get a reply. I think I will likely have to test it in real if no one here heard of it. Thank you.

Hello , The analog devices website is not aloowing to filter OPAMPs exactly by the BW slew rate etc parmater. For example as you can see here.Its not allowing me to sort OPAMP models. Is there some

Have you asked ST Micro if they have a SPICE model (not an 'LTspice model')? -- This email has been checked for viruses by AVG antivirus software. www.avg.com

Hello, In vain, I searched its model (TDA2822) in the group’s archive and on the internet. It is suitable for 32 Ohm headphone with an electret microphone and 2*1.5V battery. I have one ear working

Ok, I'll try asking.. I uploaded both LTspice .asc schematic and ngspice .cir netlist including the libraries for subckts referenced. As you can check, .tran 100n 10m analysis gives quite different

Sorry, that was a misunderstanding. The above syntax was a proposal for a future change. This is about a compromise. The old way can't come back. I'm open for suggestions. And mod

No, that doesn't work, either, in any version. With or without a comma between "V(3,4)" & "BC848B_Ic_Vce_400u.inc" the same error results. Doesn't look like the file is being included.