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john23, I uploaded "YIG VCO.asc" to the "Temp" directory.? It models what you apparently wanted.? It has two inputs and one output. The "Coarse" input is for your "TUNE" signal that sets the center

Just to note, in the latest LTspice 24.1.5, it will have the following message... It seems 'SCOPEDATA=' is forced to replace the 'file='. Looks like, compatible issue between newer & older...was used

Did anything happen?? Was there a pop-up window asking you to confirm? If no pop-up window, then perhaps you were not using Windows, or another program intercepted that key combination, or you had

Right-click on the number, such as R1. An editing pane opens where you can change it to anything you like, within reason. -- This email has been checked for viruses by AVG antivirus software.

Sorry for FAQ. How can I renumber the parts number? I heard "shift+ctrl+alt+R" is available. But no change appear. Hidehiko JA9MAT.

Depending on what john23 is wanting to model, it might be necessary to actually model the TUNE and FM circuits. They are both connected to coils internally, so the inductances might need to be

Two ports, really?? I count three. Add the Tune and FM inputs, to produce a single frequency-controlling voltage.? You have many ways to add signals, including a B-source.? You need to decide on

Hello , My device has two ports .I have tested? its functionality in the lab and I saw the following behavior: 1. no voltage? on both ports-> output is 8GHz? 10dBm 2. 2V on tune ->output is 9.4Ghz

Take a look at the files I just uploaded to Files/Temp A simple implementation of what I believe is a corrected form of Pascal's thermal expression, Dave Sent: Saturday, March 15, 2025 1:11 PM To:

We would have a MUCH better idea of exactly where to apply them, if YOU would upload YOUR models. Sent: Saturday, March 15, 2025 1:11 PM To: [email protected] Subject: EXTERNAL: Re: [LTspice]

Thanks a lot for all your message. But, excuses me for my ignorance, all theses modification have to be done in the model ? Sorry but I don't know where. Maybe can you upload your files ? Thanks a lot

Oh, I forgot, you don’t need parentheses around emax, either V={1/(1/emax+0.5*(1+tanh((v(tptc)-ts)/c)))} Sent: Saturday, March 15, 2025 12:05 PM To: [email protected] Subject: EXTERNAL: Re:

Maybe some help, Pascal: I got this to compile and “run” without errors, as below: First, to fill in some unknown values: .params emax=10 c=5 ts=2 Made a voltage source to create and set a value

I can't diagnose that, unfortunately. -- This email has been checked for viruses by AVG antivirus software. www.avg.com

Perhaps it’s the square brackets in “([v](tptc)” Dave Sent: Saturday, March 15, 2025 11:16 AM To: [email protected] Subject: EXTERNAL: Re: [LTspice] "Physical" PTC model

Hello, ? ? It's poorly coded. will take time to examine everything. Yahoo Mail: Search, Organize, Conquer

Hello, thanks a lot for your reply, Ok I understand, it seems logical. But how about the ?

I can tell you that the error messages do not mean that there is a problem with the simulation. For example, a node connected only to a current source, which has infinite impedance, appears? not to

Hello to the community, I'm very interested by the "PTC Thermistors Physical model" found in /g/LTspice/files/z_yahoo/Lib/PTC%20Thermistors/Physical%20model and I have two questions

Use a resistor to set the nominal load and put a current source in parallel. Then use the current source as the input for an AC analysis. Load regulation (and line) varies with frequency and that is