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Old 17th May 2013, 10:56 AM   #11
Bonsai is offline Bonsai  Taiwan
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Quote:
Originally Posted by Zero D View Post
I've noticed a LOT of posted designs have Lots symbols & text etc etc, overlaid on top of each other Is this a failing in LtS, or users not tidying up ?
You can drag and drop text wherever you like. The Text size is adjustable as well.

I would agree that building macros and assigning them to graphic symbols is a bit cumbersome and non-intuitive. However, a commercial grade simulator is usually expensive . . . The yahoo users group is very helpful and they do have load of model you can download.
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Last edited by Bonsai; 17th May 2013 at 11:02 AM.
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Old 17th May 2013, 10:56 AM   #12
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Multisim has the most intuitive and user friendly user interface, followed by Simetrix, but I can't do loop gain simulations as easily with either as I would in LTSpice.
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Old 17th May 2013, 11:19 AM   #13
godfrey is offline godfrey  South Africa
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Quote:
Originally Posted by Bonsai View Post
You can drag and drop text wherever you like.
That's nice, but how does the text get there in the first place? You have to type it, right? Which means you need to know what to type. Which means you need an in-depth understanding of spice commands before you can do anything.

Am I missing something here?
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Old 17th May 2013, 11:31 AM   #14
mcd99uk is offline mcd99uk  United Kingdom
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"It's 1996 and Win 3.11 PSPICE is cutting edge..."

For it's faults LTspice is a gem compared to netlist based simulators of back then. They were cumbersome.
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Old 17th May 2013, 12:39 PM   #15
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Yeah, I was going to mention things like ACNAP back in the day when you had to type in the net list and there wasn't any GUI at all. Yet, somehow we managed. LTSpice is fantastic as a free gift to the electronics community from LT, and its shortcomings, compared to commercial offerings, are minimal.
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Old 17th May 2013, 12:51 PM   #16
Elvee is online now Elvee  Belgium
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Quote:
Originally Posted by godfrey View Post
You're being sarcastic, right? In case not, and for the benefit of anyone not familiar with it, let's do a quick comparison.

Imagine you want to do a Fourier analysis, and need to set the parameters. Here's what the user interface that you'd have to use looks like, for LTSpice and SIMetrix respectively.

Guess which one somebody new to spice could master in 5 minutes, and which would have him tearing his hair out for hours as he tries to make sense of the "help"?
Apart from cultural differences, the panels don't look that different (to me at least):
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Old 17th May 2013, 01:05 PM   #17
macboy is offline macboy  Canada
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Quote:
Originally Posted by godfrey View Post
You're being sarcastic, right? In case not, and for the benefit of anyone not familiar with it, let's do a quick comparison.

Imagine you want to do a Fourier analysis, and need to set the parameters. Here's what the user interface that you'd have to use looks like, for LTSpice and SIMetrix respectively.

Guess which one somebody new to spice could master in 5 minutes, and which would have him tearing his hair out for hours as he tries to make sense of the "help"?
In LTSpice, to get an FFT, you would simply run the sim. Then plot a waveform for the FFT, by clicking any node or component leg on the schematic. Then choose FFT from the menu, and adjust your FFT parameters in the GUI window. Then look at the pretty picture created.

Quote:
Originally Posted by godfrey View Post
That's nice, but how does the text get there in the first place? You have to type it, right? Which means you need to know what to type. Which means you need an in-depth understanding of spice commands before you can do anything.

Am I missing something here?
Yes, clearly you are missing something.
One very rarely needs to type any spice command into LTSpice. On occasion, the GUI will put a spice command onto the schematic for you, after you enter parameters into a GUI window. Specifically, this happens when you run a sim for the first time, you will get a ".ac" or ".tran" etc. directive on your schematic, which is the command that old school text-only spice uses to run the sim. But you never need to enter that command manually. In fact, if you right-click it, a GUI windows pops up to allow you to adjust the simulation parameters. LTSpice is Spice. The ability to enter spice commands manually is a powerful tool, but it is not necessary to use the program.

The LTSpice GUI isn't all that bad, sure it takes getting used to, but it works well. If you want an example of a convoluted GUI, try Eagle.
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Old 17th May 2013, 01:36 PM   #18
godfrey is offline godfrey  South Africa
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Quote:
Originally Posted by macboy View Post
Yes, clearly you are missing something.
OK, got it now. Guess I just never found my way to all the pretty dialog boxes etc, and was also a bit put off e.g. by the noob guide, which explains stuff like the importance of ".options plotwinsize=0", and the syntax of the .four statement, but doesn't mention that there's an easier way to do all this.
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Old 17th May 2013, 02:02 PM   #19
Bonsai is offline Bonsai  Taiwan
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Yeah! LTSpice rocks man!
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Old 17th May 2013, 03:45 PM   #20
Zero D is offline Zero D  United Kingdom
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Thanks for All the comments

Quote:
Originally Posted by godfrey

Have you tried using LTSpice?
No, because i have Multisim, plus LtS "looks" mickey mouse to me I FULLY realise that just because something looks the way it does, does NOT mean it's crap etc. And i know from what many people say it is NOT

Quote:
Originally Posted by Bonsai

You can drag and drop text wherever you like. The Text size is adjustable as well.
That's what i expected people should be able to do. So it's just some users who don't tidy up

Quote:
Originally Posted by michaelkiwanuka

Multisim has the most intuitive and user friendly user interface,
I like it a LOT
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