All Questions
13 questions
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Cannot get correct output in PSpice with the Buck Converter PSpice Transient Model from TI
I obtained the LM76005-Q1 transient model from the Texas Instrument website and imported it to PSpice. The website also provides a Design Calculator software, so I basically use it to determine other ...
2
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3
answers
697
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I need to implement DC and transient analysis of diode and transistor circuits. How can I do that?
I am doing a MATLAB project at my university.
I have tried to implement DC and transient analysis of diode and transistor circuits by linearizing them and using iterative methods, but the results don'...
- 199
4
votes
1
answer
478
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Artifacts in transient analysis
Is there some rigorous treatment of convergence issues in transient analysis?
I am using LTSpice. In transient analysis with maximum time-step is used. Fundamental oscillatory frequency of analysed ...
- 117
1
vote
0
answers
3k
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pseudo transient analysis issue
Note: pseudo transient analysis issue means that the LTSpice simulator is stucked with running pseudo transient analysis forever without any output waveform results.
The pseudo transient analysis ...
- 423
3
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1
answer
2k
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Problem with Micro-cap 12
I hope it is okay to post a software question here. Please let me know if not.
I've been learning about Microcap 12 (a SPICE simulator), and have been quite impressed. However, recently I got stuck. ...
- 133
1
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0
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145
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How can I make LTSpice calculate the transient response starting from a time different than t=zero?
I'm creating a schematic and I'm trying to simulate it using LTSpice.
However, my RC time constant is quite large, and I'd like Spice to simulate only from around 10ms onward. I know that if i set ....
1
vote
2
answers
545
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Howto debug ngspice error PPerror: syntax error during transient analysis
In an effort to better understand software and how my computer actually works I have been experimenting with simple electronic circuits.
I am working up to having three two bit registers (A, B, C) ...
- 13
3
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2
answers
267
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Inserting an unused voltage source in LTspice messes up transient results
This took me three days to figure out. Consider this simple circuit in LTspice:
Looks pretty innocent. The output is a 1V sine wave, as expected. Going to View->FFT, setting number of data points to ...
- 1,332
0
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2
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2k
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What is meant by "DC operating point analysis" in SPICE programs?
Here is a paragraph I came across:
Since transient analysis is dependent on time, it uses different
analysis algorithms, control options with different
convergence-related issues and different ...
- 4,385
3
votes
1
answer
5k
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LTspice MOSFET width sweep
I am trying to simulate the transfer characteristics of a CMOS inverter using LTspice.
I want to sweep the MOSFET width and length and observe the effects on rise and fall times of the CMOS inverter. ...
- 469
3
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2
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824
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Linux Circuit Software To Calculate Power Dissipation
I am a bit new to this whole circuit simulation software, so I was hoping someone could share their years of experience with me to help me weed through this seeming jungle of software-packages.
I ...
- 139
0
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1
answer
479
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Spice definition of resistor/capacitor
I am trying to understand a Spice definition of a circuit and transient analysis on it. I have kind of "inherited" this and can't ask the original creator; my Spice memories from university are pretty ...
- 143
7
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3
answers
2k
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About SPICE: Should I use transient analysis or DC linear analysis?
My question is specifically linked to an exam problem where I had to find a function in terms of time for the current on a capacitor and a resistor. The circuit was very simple: A current time-variant ...
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