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Storing and retrieving use symbols
I need help in placing a symbol (of my own creation) onto a new schematic. The 'Select Component Symbol' window only gives two directories (.....LTSpiceIV and ....LTSpiceIV\lib\sym) The problem is that my symbol is in folder ....LTSpiceIV\Projects and therefore not accessible from Select window. I thought it was good practice to keep user symbols out of the LTSpice main directory. So what is the solution for this? Thanks Gordc |
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Re: LTspiceXVII released
? ?"are they gonna call this LTSPICE 17? or LTSPICE 5?" It seems that they (LTC) or he (Mike) have given it the name LTspice XVII.? This program is released.? The name is what it is. By the way, you might want to pay closer attention to the capitalization.? Some people get upset when it is done wrong.? Neither Mike nor LTC uses "LTSPICE".? Also, only two I's in XVII. ? ?"Oh and by the way Helmut, tell mr Mike...I noticed something weird?..." You should tell him yourself; don't make Helmut do the work for you.? Mike shows how to report bugs and other problems.? See Help -> About LTspice XVII. ?(But I am not sure if this one is an LTspice issue or a Wine issue.) ? ?"...just a homeboy here in Fort Worth Texas" Very much O.T. now -- but I wonder why you posted that link earlier today to a UML (Massachusetts) webpage which didn't have any obvious links to the T.I. patent issue you were describing.? Fort Worth and Lowell are very much not local to one another.? It just had my curiosity.? No big deal. Andy |
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Re: LTspiceXVII released
...umm, Helmut...are they gonna call this LTSPICE 17? or LTSPICE 5?
Or Mike E.'s? strawberry wonder pudding? <---is bad at attempts at Brit* humour. Oh and by the way Helmut, tell mr Mike...I noticed something weird (workable perhaps)..but still ""unusual"". When activating the 64-bit version of LTSPICEXVIII...using WINE loader (not Qt WINE) 1.7 in Fedora 21 FEL (Fedora Electronics Lab)...I briefly get a "black box window" (instead of the usual WINE box). Might be a graphics memory management issue....the program still ran properly (I have not tested the 32-bit version of LTSPICEXVIII)...hmmm. Could indicate "issues down the road" mr. Mike (all the related graphics worked as well including FFT transforms and inverse-transforms(. W. Warren *(hopes John can think of something better...just a homeboy here in Fort Worth Texas) |
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Yahoo!Group delays
Yahoo seems to have significant delays today, processing some of the messages here in this group.? They seem to be random -- some get through quickly, others are taking many many hours.? We just have to be patient. If you posted a message and have not seen it yet, that is probably why.???Log-jams happen sometimes. I didn't read about this on a blog or status board.? It's just my own observation. Andy |
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Re: Schottky Diode Models
Thanks, I will try that out on Friday or Monday. out of interest how did you determine the various values to use from the Datasheet, etc.? Meanwhile, I have actually managed to get a corrected version of the BAR43SFILM model from ST Microelectronics via a Distributor that provides local support. I have been told the model library on the web site will be updated in due course (I don't know if just for this particular diode or the family, etc.). For reference the current library is version 3 and the .lib file in the .zip file is dated 19th April 2016 (although inside the file it says February 2016). FYI - Pretty much every value in the new model is very different to the original model! Thank you for your help. It will be interesting to compare your version with theirs as they are completely different (for instance their IBV is a fixed value (not an expression based on temp!)! Thanks Henry Kafeman |
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Re: LTspiceXVII released
Any word about Mac version? Thanks Jim Wagner Oregon Research Electronics From: "helmutsennewald@... [LTspice]" To: "LTspice" Sent: Thursday, July 28, 2016 3:00:13 PM Subject: [LTspice] LTspiceXVII released Hello, I just got a message from Mike that LTspiceXVII is now relased. Mike, thank you for the continuous improvements of LTspice during the last 17 years. ? The advertised features from this webpage are below. LTspice?XVII LTspice XVII?is?partial rewrite of LTspice IV with a modern graphics library for native multi-monitor support. XVII also includes:
LTspice XVII runs on 32- or 64-bit editions of Windows 7, 8 or 10. Windows XP is not supported. Windows XP users can run LTspice IV, which will still be available in observance of Linear Technology Corporation's zero obsolescence tradition. Best regards, Helmut |
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XVII
??????? --- LTspice? Announcements --- The major new release of LTspice is today. LTspice XVII is partial rewrite of LTspice IV with ? - 64-bit support Also, I see what looks a malicious software distributed ?? Mike Engelhardt |
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LTspiceXVII released
Hello, I just got a message from Mike that LTspiceXVII is now relased. Mike, thank you for the continuous improvements of LTspice during the last 17 years. ? The advertised features from this webpage are below. LTspice?XVII LTspice XVII?is?partial rewrite of LTspice IV with a modern graphics library for native multi-monitor support. XVII also includes:
LTspice XVII runs on 32- or 64-bit editions of Windows 7, 8 or 10. Windows XP is not supported. Windows XP users can run LTspice IV, which will still be available in observance of Linear Technology Corporation's zero obsolescence tradition. Best regards, Helmut |
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Re: Analog Devices to buy LT!
Andy has nailed it. ?Anything can happen and outside speculation ¨C or even internal speculation ¨C is pretty much a waste of time. ?The final decision may not even have any logic to it.
The question of the fate of LTspice is a good one, but only time will tell the answer. ?Mike may have more concern for his job (and the fate of LTspice) post-announcement than he did pre-announcement, but it's quite likely that his fate, and the fate of the software, have not yet been decided. ?And they might become unlinked altogether. ?No offense to anyone, but it's not going to be up to Mike. ?The elephants dance and the mice stay out of the way. |
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Re: Analog Devices to buy LT!
¿ªÔÆÌåÓýAlready too much speculation is going on in this thread, mostly by people who don't understand the arcanes of a big company. It's not worthy of a supposedly scientific group. Le 28/07/2016 ¨¤ 20:09, Jim Wagner
wagnejam99@... [LTspice] a ¨¦crit?:
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Re: Analog Devices to buy LT!
¿ªÔÆÌåÓýI generally have found over the last 30 years of business that postulating about how businesses are re-organized is pointless. ? I came to the conclusion that Managers were reading my brain and doing the exact opposite. ? So anything could happen, I might even win the UK National Lottery¡ ? Dave G4UGM ? From: LTspice@... [mailto:LTspice@...]
Sent: 28 July 2016 20:04 To: [LTspice] group Subject: Re: [LTspice] Re: Analog Devices to buy LT! ? ? ?"Who own the right of LTspice ? company or Mike the author ?" ? When you click Help -> About LTspiceIV, you will see that Linear Technology owns the copyright of LTspice, and Mike is the Author.? I would also guess that LTC owns the product, just like all the ICs their employees have designed. ? Like most products, if an employee leaves a company, the things they designed for the company, remain the property of the company.? Otherwise, a lot of products would mysteriously disappear from a company's product line, when its designer(s) happened to switch jobs.? That generally doesn't happen. ? ? ?"If so, the support of LTspice might be not so much." ? Remember that LTspice is supported not only by Mike. ? ? ?"If Mike leaves...nothing stopping him from ? ? ?? developing a new "LTspice compatible" ? ? version of simulation software..." ? Well, that's where it gets a lot less clear.? There may be things stopping that. ? Many companies, especially in the technology sector, have non-compete provisions, which deny a former employee from developing a new version of their old product for a period of time, and/or developing the same product elsewhere.? For him to come up with a new LTspice-like simulator, either it would have to be significantly different (no code or algorithms he developed while at LTC), or it would have to be with ADI's permission to take it with him -- essentially a spin-off? ? Regardless, all this is meaningless speculation.? We have no reason to believe that ADI would not continue to support LTspice, nor that Mike would leave. ? Regards, Andy (also not an employee of either Linear Technology or Analog Devices) ? ? |
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Sub circuit heat dissipation not showing
Hello, I am relatively new at LTspice. I was wondering why a sub circuit for TIP142 and TIP147 doesn¡¯t calculate the heat dissipation when I run my circuit and hover over the symbol with the ALT key held down. All I see is the apparent formula. This feature works in non-darlingtons.? ?
Thanks, Brad |
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Re: Analog Devices to buy LT!
John Woodgate
I think all this speculation is unwise. It just might give some corporate nincompoop the idea of putting a price on the product. A price compatible with its excellence. OIEO 10*X kilobucks.
With best wishes DESIGN IT IN! OOO ¨C Own Opinions Only <> www.jmwa.demon.co.uk J M Woodgate and Associates Rayleigh England Sylvae in aeternum manent. From: LTspice@... [mailto:LTspice@...] Sent: Thursday, July 28, 2016 8:04 PM To: [LTspice] group <LTspice@...> Subject: Re: [LTspice] Re: Analog Devices to buy LT! "Who own the right of LTspice ? company or Mike the author ?" When you click Help -> About LTspiceIV, you will see that Linear Technology owns the copyright of LTspice, and Mike is the Author. I would also guess that LTC owns the product, just like all the ICs their employees have designed. Like most products, if an employee leaves a company, the things they designed for the company, remain the property of the company. Otherwise, a lot of products would mysteriously disappear from a company's product line, when its designer(s) happened to switch jobs. That generally doesn't happen. "If so, the support of LTspice might be not so much." Remember that LTspice is supported not only by Mike. "If Mike leaves...nothing stopping him from ? ? developing a new "LTspice compatible" version of simulation software..." Well, that's where it gets a lot less clear. There may be things stopping that. Many companies, especially in the technology sector, have non-compete provisions, which deny a former employee from developing a new version of their old product for a period of time, and/or developing the same product elsewhere. For him to come up with a new LTspice-like simulator, either it would have to be significantly different (no code or algorithms he developed while at LTC), or it would have to be with ADI's permission to take it with him -- essentially a spin-off? Regardless, all this is meaningless speculation. We have no reason to believe that ADI would not continue to support LTspice, nor that Mike would leave. Regards, Andy (also not an employee of either Linear Technology or Analog Devices) |
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Re: Analog Devices to buy LT!
? ?"Who own the right of LTspice ? company or Mike the author ?" When you click Help -> About LTspiceIV, you will see that Linear Technology owns the copyright of LTspice, and Mike is the Author.? I would also guess that LTC owns the product, just like all the ICs their employees have designed. Like most products, if an employee leaves a company, the things they designed for the company, remain the property of the company.? Otherwise, a lot of products would mysteriously disappear from a company's product line, when its designer(s) happened to switch jobs.? That generally doesn't happen. ? ?"If so, the support of LTspice might be not so much." Remember that LTspice is supported not only by Mike. ? ?"If Mike leaves...nothing stopping him from ? ? ?? developing a new "LTspice compatible"? ? version of simulation software..." Well, that's where it gets a lot less clear.? There may be things stopping that. Many companies, especially in the technology sector, have non-compete provisions, which deny a former employee from developing a new version of their old product for a period of time, and/or developing the same product elsewhere.? For him to come up with a new LTspice-like simulator, either it would have to be significantly different (no code or algorithms he developed while at LTC), or it would have to be with ADI's permission to take it with him -- essentially a spin-off? Regardless, all this is meaningless speculation.? We have no reason to believe that ADI would not continue to support LTspice, nor that Mike would leave. Regards, Andy (also not an employee of either Linear Technology or Analog Devices) |
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Re: Analog Devices to buy LT!
¿ªÔÆÌåÓýIf Mike leaves...nothing stopping him from developing a new "LTspice compatible" version of simulation software... On Jul 28, 2016, at 11:09 AM, Jim Wagner wagnejam99@... [LTspice] <LTspice@...> wrote:
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Re: Analog Devices to buy LT!
Ownership is not clear from the outside. I would expect it to be the company, but in the murky world of Silicon Valley, it could be anything. What might happen if Mike leaves the company? That is even less clear. He is so crucial to the development of LTspice that it could not but have a negative impact. For those of us "outside", we can only wait and see how the dust settles. Jim James Wagner Oregon Research Electronics From: "ericsson.sunshine@... [LTspice]" To: "LTspice" Sent: Thursday, July 28, 2016 7:55:16 AM Subject: [LTspice] Re: Analog Devices to buy LT! Hi, : May I ask a question. "Who own the right of LTspice ? company or Mike the author ?" Will this be a problem ? if Mike the author decide to ?leave the new company ? If so, the support of LTspice might be not so much. Best regards.
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Re: Schottky Diode Models
Hi.
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it is BV, iBv for TEMP=25 iIeak=500n and 100microA at 100C (exp(TEMP-27)/x) x=? Bordodynov. 28.07.2016, 19:58, "4vl7aujnwrex7ropketfjd7le5afsie4zyue7rcb@... [LTspice]" <ltspice@...>: Bordodynov |
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Re: vc pot with internal resistance
Well, I thought I'd amuse myself a bit, so here's a new view on the variable potentiometer: . Good for mildly amusing soirees. Vlad ______________________ -- holding, among others: a universal analog/digital filter, block-level models for power electronics (and not only), math blocks with a more stream-lined approach, some digital ADC, DAC, (synchronous-)counter, JKflop, etc. |
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Re: course of HOWTO build models like (sanken) STR-A6100
ericsson.sunshine?wrote: ? ?"But the most significant one is that I had been aware of the waveform of FB comparator's ... ? ? The picture in page.15 shown that the Vsc should be a vertical straight line ..." I think you meant to write *horizontal* line. ? ?"...?but my simulation shows it's rippled ..." You did say that ANY opinion is appreciated, so here is mine.? This is based on knowing nothing about the device, the datasheet, or the SPICE model. I'm guessing the waveforms in that plot on page 15 are idealistic, not realistic. It is an internal voltage inside the IC, right?? Chances are it won't be steady, not a straight flat line.? I don't know what drives it, because the figure in the datasheet shows an empty box going to that node.? Is the voltage on the FB/OLP pin steady?? I guess it must be rippled too. Your uploaded file doesn't have the "TL431(TI)" (both symbol and model). Andy |
Mike Engelhardt