Modelare circuit LTspice

[denikj]

Buna ziua!! Am făcut un proiect la facultate inLTSPICE, și mă confrunt cu niște probleme în program. in timp , și vrea să aflu potențialul la nodul 15,cate este de ieșire ,îmi dă o linie dreapta ,nu înțeleg de ce ..având să văd că acolo am led ,nu cred că așa ar trebui ..ledul acela ar trebui declarat că o diodă ?? Nodul 15 nu este legat de vcc da zic că este continua ..acum dacă vreau să declar acel led ,eu am o diodat care este intre 0 și 15 ( de la anod la catod) acel led îl iau tot între acești noduri ??? Ideea este că nu îmi iese analiză în curent continuu și nici în timp ... Cine știe și mă poate ajuta...va rog mult !!!

[Google translation from Romanian:]
Hello!! I did a college project inLTSPICE, and I'm facing some problems in the program. in time, and he wants me to find out the potential at node 15, which is the output, he gives me a straight line, I don't understand why .. seeing that I have a led there, I don't think that's how it should be .. that led should be declared that a diode ?? Node 15 is not connected to vcc yes I say it is continuous .. now if I want to declare that led, I have a diode that is between 0 and 15 (from anode to cathode) I take that led all between these nodes??? The idea is that I don't get analysis in continuous current nor in time ... Who knows and can help me ... please !!!

 

[FvM]

Do you mind to zip your LTspice .asc simulation file and post it here?

 

[denikj]

Ni nu lucram cu .asc ci cu .cir ,dacă doriți vă trimit cu .cir

We don't work with .asc but with .cir, if you want I can send you with .cir

 

[denikj]

As dori doar liniile de cod in ltspice ....daca se poate ,oricum am trimis schema ...nustiu daca ama pus nodurile corect

I would like only the lines of code in ltspice .... if possible, I sent the schematic anyway ... I don't know if I put the nodes correctly

 

[KlausST]

14 Mbytes for a couple lines of text and a schematic?

I´m don´t download them.

Klaus

 

[D.A.(Tony)Stewart]

Klaus I get free downloads up to 1TB/mo. sorry about your situation. I guess his phone cam is high res.

Denikj,

ADD INPUT Vac = 1 mV 1kHz AC signal AND series 0 to 10mV 10 Hz to modulate LED

vs .

MIC input = 10k (?) approx to 12V

OK?

 

[KlausST]

Klaus I get free downloads up to 1TB/mo. sorry about your situation.

I have no limit ... It´s just that I don´t support this, because it makes no sense.

Klaus

 

[mtwieg]

Ni nu lucram cu .asc ci cu .cir ,dacă doriți vă trimit cu .cir

We don't work with .asc but with .cir, if you want I can send you with .cir

The .cir file contains a netlist? Go ahead and share it.

As dori doar liniile de cod in ltspice ....daca se poate ,oricum am trimis schema ...nustiu daca ama pus nodurile corect

I would like only the lines of code in ltspice .... if possible, I sent the schematic anyway ... I don't know if I put the nodes correctly

I don't see any attachment to this post. Did a moderator remove it...?

 

[BradtheRad]

I don't see any attachment to this post. Did a moderator remove it...?

I see only 3 jpeg in initial post. (Each several MB.) OP can Kindly reduce file sizes. Kindly attach netlists as text or zipped text.

 

[mtwieg]

As dori doar liniile de cod in ltspice ....daca se poate ,oricum am trimis schema ...nustiu daca ama pus nodurile corect

I would like only the lines of code in ltspice .... if possible, I sent the schematic anyway ... I don't know if I put the nodes correctly

Just inspecting the .cir netlist, there are some differences between your netlist and schematic.
1. The netlist does not have the PNP connecting to nets 12, 14, and 15
2. R4 connection is different (connects to net 5 in the netlist, net 4 in the schematic)
3. The netlist does not have a 100u capacitor connected to nets 0 and 7

I think if you create a proper schematic in LTspice (an .asc file) you will solve your problems.