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I have to think on that, Andy! Please see the file AD_PV_Sim 250410.zip I just uploaded. Dave Sent: Thursday, April 10, 2025 12:10 PM To: [email protected] Subject: EXTERNAL: Re: [LTspice] Overriding

Ah, that would means that LTspice XVII doesn't recognize rs as a parameter of a diode, which cannot be true. Can you try another diode, just to see if you get the same error? You could also upload

In case it matters, ... Be careful with diode parameter 'N'. 'N' in the .model statement means Emission Coefficient. 'N' in the diode element line is the diode multiplier. This is a SPICE thing that

Ankit, I will try to address your questions. 3) All measurements made by the .meas statements are done after the simulation has ended. They are done by a post processing step and have access to all

Well defining it twice is no good.

I absolutely LOVE the TimerBlox line! SO many components rolled into one ddevice… Sent: Thursday, April 10, 2025 11:41 AM To: [email protected] Subject: EXTERNAL: Re: [LTspice] How can I create a

OK, correcting my confusings… N={Ns} was a typo; I have N={N}, and that – by itself – works correctly. It’s the second parameter, rs={Rs} that causes a fault: Error on line 3 : d1 vpv 0 mur460

Answer: Use LTC6992 Voltage Controlled PWM Peter Sent from AT&T Yahoo Mail on Android

Hello, Richard. I'm not running the sim, that is Dave Bell. I think N={N} is wrong because there is already N={Ns}; it can't be defined twice.

Hello John, Not that it matters, but N={N} Rs={Rser} looks right to me. What version of LTspice are you running? What exactly does the log file say?

I don't understand this line: I tried adding an override of rs by “N={N} Rs={Rser}”, What is N={N} for? I don't think you need it: Rs is in every instance of the diode already. Do you have a line

I was working with the recently linked AD PV Cell sim. It uses a MUR460 library diode, multiple in series, to simulate the cell/string's forward voltage. The default series resistance seems too high,

See this post on ADI's EZone: https://ez.analog.com/design-tools-and-calculators/ltspice/f/q-a/577705/i-would-like-to-use-the-legacy-pre-ltspice-24-ltspice-gui

I get "timestep too small". Is that NOT the error you see? Andy

Hi Andy, Thanks for the suggestion - I'll take a look at that example and the built-in LPNP model. Your point about the antiquity of the device is well-taken. I'm working on learning some more

Trying to get this opamp model to work. I keep getting errors. I know it has to do with the "TABLE" lines, but not sure how to fix. Model was pulled from OnSemi's website. File is posted in the temp

If I were to do this, I would use something like the one suggested by Donald.? I prefer it because I think it is easy to visualize how it gives you the? varying duty cycle, and it might be close to

Manauo, Have you looked at this schematic, that comes with LTspice? I don't know how it compares to your efforts, but it is another one to consider.? I'm guessing that one just copied the

Edit: Schematic is uploaded in files/temp, "741.asc"

Hi, I'm sure this has been asked before but in searching I couldn't find anything that addressed my issue, so apologies if this is a duplicate. As an exercise I'm modeling the 741 op-amp internal