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Bernhard, Those Warning messages about "Multiple definitions" of those four BJTs can be ignored.??The good news is that they are only Warnings.? And in your case, they do not affect your

For BC847C Rohm offers the SPICE parameter set of BC547B. Therefore the current gain of the BC847C model is too low. In the LTspice standard.bjt there are BC847B and BC847BT116, both from Rohm and

There is an undocumented REPEAT feature in the Wiki at: /g/LTspice/wiki/13810 /A list of data points or a file reference can be repeated a fixed amount of times <n>, or forever// //

Yes you can. Here is an example: PWL repeat forever (0 0 0.5 1 1.5 -1 2 0) endrepeat You can use the same syntax with a PWL file, too. -- Regards, Tony

I have created a pulse source from a PWL file. It‘s 32 samples of a signal. Is it possible to make this pulse train periodic? Or do I have to provide the pulse samples for every period by the PWL

On 08/07/2023 14:18, Mike Fraser wrote: > I have the latest update to LTspice 17.1.9. > In my opinion, the transistor listing has reached a point where it canot be trusted. > ? ? ? ? ? Anyone

I have the latest update to LTspice 17.1.9. In my opinion, the transistor listing has reached a point where it canot be trusted. Anyone using the built in BJT listing needs to double or triple check

The deleted devices are in my Netlist, not the Error Log. ====================================================================================== Best wishes John Woodgate OOO-Own Opinions Only

Interesting. I have just tested with "NPN" and "D" but none of them are replaced acc. to the "SPICE Error Log" file (Ctrl+L). But the multiple definitions of bjt models is still present. My test file

I was just about to post another example of this. In addition, I find in the netlist generic devices NPN, PNP and D, which were in the .ASC but have been replaced by real devices, BC547B, BC557B and

Since several weeks the "SPICE Error Log" file contains these lines even when these transistors are not used: Warning: Multiple definitions of model "2scr375p" Type: BJT Warning: Multiple definitions

I have made a VMOS model based on the Onsemi datasheet, which adheres pretty well to all the graphs. Unfortunately, I can't upload ATM, as our power has been taken out by a big thunderstorm. --

FYI - Op-amp GBP or bandwidth is only one consideration. Also there are the effects of the external components, such as the feedback capacitor, the output load, gain-peaking, etc.. Also slew rate.?

mliccione89 wrote, "I'm not getting what I expect to see at the output of the TIA." What did you expect to see? It looks to me like you are sending very narrow (~ 2 ns wide) pulses into the TIA.? How

Richard wrote, "I just went to diodes.com and found the newest spice model for the BSS138. ( https://www.diodes.com/spice/download/1838/BSS138.spice.txt ) " And ... what is your point? That was one of

Thanks Tony et al. I did totally flub the initial file upload. I've moved on to using this opamp for my intended purpose, as a TIA that can pass pulses from a photodetector. I'm not getting what I

I just went to diodes.com and found the newest spice model for the BSS138. ( https://www.diodes.com/spice/download/1838/BSS138.spice.txt )

Then start with the simplest circuit of a single stage, then add stages until it disproves the conjecture. Tim

IMO, you are wrong, Tim. The video is about a quasi-continuously varable step-down DC/DC converter. Concerning his self-adjusting autonomous 4s battery equalizer, Sam Ben-Yaakov described a natural

Nokia Corporation, unfortunately no series layout.