I've up-dated my website to add a circuit diagram, some comment on it, and the text from the corresponding LTSpice .asc...

I've up-dated my website to add a circuit diagram, some comment on it, and the text from the corresponding LTSpice .asc file. http://sophia-electronica.com/BillsBaxandall.html The circuit produces a balanced pair of 1V rms 17kHz sine waves. The LTSpice simulation suggests the third harmonic content is about 60db below the fundamental, and the fifth harmonic is even smaller. It's not a par...

"This does not bode well for the future of LTspice now that Mike Engelhardt has parted ways with Analog Devices."---analog spiceman...

"This does not bode well for the future of LTspice now that Mike Engelhardt has parted ways with Analog Devices."---analog spiceman https://groups.io/g/LTspice/topic/cloud_over_ltspice/71467233

Bonjour, Je simule mon circuit sur le logiciel "LTspice" et il m'affiche cet erreur là "Time step too small; time=153.341,...

Bonjour, Je simule mon circuit sur le logiciel "LTspice" et il m'affiche cet erreur là "Time step too small; time=153.341, timestep=1.43134e-013: trouble with u16:np-instance q:u16:3" s'il vous plait est ce que quelqu'un peut m'aider à résoudre ce problème ? Merci Fivota

Awhile back we were trying to figure out how to make a voltage-variable delay line in LTspice. Turns out there is a way to use one signal to...

Awhile back we were trying to figure out how to make a voltage-variable delay line in LTspice. Turns out there is a way to use one signal to delay another: there's an undocumented function delay(x,y). Unlike the documented one, delay y can be a simulation variable, like so: Version 4 SHEET 1 880 680 WIRE -96 112 -112 112 WIRE 96 112 80 112 WIRE 112 112 96 112 WIRE 304 112 288 112 ...

I offer to share with you a TUTORIAL but don't know how to get it into your hands. The TUTORIAL is about 15kB, zipped, and describes the...

I offer to share with you a TUTORIAL but don't know how to get it into your hands. The TUTORIAL is about 15kB, zipped, and describes the step-by-step process of using FREE femm 4.2 to analyze a simple PCB structure to calculate values to then use in circuit simulation, LTspice/PSpice. The sequence can be modified for use in analyzing really complex structures, structures where th...

I am working on a simulation for a loop antenna in LTspice and I can't figure out why the signal strength features are what they are. The...

I am working on a simulation for a loop antenna in LTspice and I can't figure out why the signal strength features are what they are. The model uses a pair of loosely coupled inductors to model the transmitter and antenna loop with a separate pair of tightly coupled inductors to model the coupling transformer. A cap on the primary circuit is the tuning cap and a cap on the secondary is...

I had never tried it in spice. I tried direct coupled first because I didn't really know what I was doing with the LTspice transmission line....

I had never tried it in spice. I tried direct coupled first because I didn't really know what I was doing with the LTspice transmission line. But this much seems to work just fine. It is very idealistic. I was checking some math with a circuit simulator. Version 4 SHEET 1 6120 3588 WIRE -240 -672 -320 -672 WIRE 432 -672 -240 -672 WIRE 800 -672 432 -672 WIRE 1056 -672 896 -672 WIRE 134...

There are many kinds of them for instance from NXP.

There are many kinds of them for instance from NXP.

< https://www.eenewseurope.com/en/re-writing-spice-for-a-digital-world/ > cheers, Gerhard

< https://www.eenewseurope.com/en/re-writing-spice-for-a-digital-world/ > cheers, Gerhard

What is the substitute for LM7812 in LTspice ? I can find any...

What is the substitute for LM7812 in LTspice ? I can find any...

I can't find a way to get TI's model into LTspice. So, I tried TI's online simulator. It does not give a reasonable output even using their...

I can't find a way to get TI's model into LTspice. So, I tried TI's online simulator. It does not give a reasonable output even using their default schematic. And, it is glacially slow -- they say it might take up to 15 minutes to complete an analysis. Has anyone else had this problem?

I need to sim an LM386 amp to see what decoupling caps are neded for stability on end of life batteries. Is there a Spice model for this anywhere?...

I need to sim an LM386 amp to see what decoupling caps are neded for stability on end of life batteries. Is there a Spice model for this anywhere? My LTSpice seems to lack any of the IC models I'm likely to use. NT

Anyone Know who this is.... gazeee20@hotmail.com A definite POS, flooding my LTspice E-mail Inbox. Now filtered out. But I'll pay $10...

Anyone Know who this is.... gazeee20@hotmail.com A definite POS, flooding my LTspice E-mail Inbox. Now filtered out. But I'll pay $10 to anyone who takes a dump on his front porch ;-) ...Jim Thompson -- | James E.Thompson, CTO | mens | | Analog Innovations, Inc. | et | |...

Here is what I have: .model LXHL-BW02 D(Is=4.5e-20 Rs=.85 N=2.6 Cjo=1.18n Xti=200 Iave=400mA Vpk=5 mfg=Lumileds type=LED) How do I change...

Here is what I have: .model LXHL-BW02 D(Is=4.5e-20 Rs=.85 N=2.6 Cjo=1.18n Xti=200 Iave=400mA Vpk=5 mfg=Lumileds type=LED) How do I change the Vf at a specified current? I suspect that it is more involved than just changing Rs. Thanks, Guys.

Folks, This is close to voodoo but repeatable. Unfortunately I can't disclose the schematic since it is for a client. Just wondering , anyone...

Folks, This is close to voodoo but repeatable. Unfortunately I can't disclose the schematic since it is for a client. Just wondering , anyone had this before? At the far end of a TX line I used to have a diode connected across because a previous version of a chip would have such a substrat path. Nice waveforms, fast sims. Everything as expected and peachy. Now the new iteration of the c...

LTSpice says that the forward voltage drop of LEDs have a positive coefficient. That is contrary to my thinking and to my measurements. Am I...

LTSpice says that the forward voltage drop of LEDs have a positive coefficient. That is contrary to my thinking and to my measurements. Am I doing something wrong?

I was going to try to load the TI TPS54335 spice model into LTspice but it looks encrypted. Is TI encrypting its spice models...

I was going to try to load the TI TPS54335 spice model into LTspice but it looks encrypted. Is TI encrypting its spice models now? http://www.ti.com/product/tps54335 Thanks

Hi all, It still amazes me after all the years LTspice has been around the standard parts library in it remains so tiny. I don't think this...

Hi all, It still amazes me after all the years LTspice has been around the standard parts library in it remains so tiny. I don't think this long- standing defect in otherwise very good program will ever be fixed. So like anyway, has anyone got a model for a BD131 NPN transistor they could post here? TIA folks. CD

Hi all, simple question how do I add a library to ltspice. Lib from...

Hi all, simple question how do I add a library to ltspice. Lib from here. https://www.classe.cornell.edu/~ib38/teaching/p360/lectures/wk12/l35/11.1/74hc.lib I've watched a few videos, but not working so well. George H.

I'm trying to add the models of a couple of N-FETs I use to LTSpice. I'm getting a simulation-time error that I can't resolve. Any ideas? ...

I'm trying to add the models of a couple of N-FETs I use to LTSpice. I'm getting a simulation-time error that I can't resolve. Any ideas? Thanks. The error: |M1: Only a level 9 B3SOI can have 6 nodes It thinks I have six terminals on my transistor and only SOI models have that many? Looks like only three to me. The circuit: Version 4 SHEET 1 880 680 WIRE 144 -80 16 -80 ...