Re: SchBuilder.exe Windows10 #SchBuilder

#90291

Hello Analogspiceman

Thank you for uploading the source of SchBuilder.

I'm going to upload Lazarus.

It's a lot of time that I used it. So I fear I'll be long to be efficient.

Regards
PhB

Re: SchBuilder.exe Windows10 #SchBuilder

#90290

Hello Analogspiceman

I realize that my previous description of the problem is not correct.

In fact when I run Schbuilder I can red in "Config" Panel:
"(config file not found, using default "
"ERROR: LTspice symbol folder not found! "! "

The file SchBuilder;cfg is in SchBuilder;exe folder.

Eetech00 wrote? " I run it on W10 with no problems.. "

Do you succed too ?

Regards
PhB

Re: SchBuilder.exe Windows10 #SchBuilder

#90289

Hello Analogspiceman

Thanks for answering.
Does it mean you fouind a problem with W10?

By the way I thought about an "improvement".
Would it be hard to add a little bit of wire at each componets node.
That would? allow to use the LTspice function "Highlit net" to see in aglance all components tied to a node.

Regards
PhB

Re: SchBuilder.exe Windows10 #SchBuilder

#90288

The zipped file is not too large for this group, so please see:

---In LTspice@..., <analogspiceman@...> wrote :

Hello PhB,

I brought the code for the Schematic Builder program in today.? It is a little large for this group, but maybe I could upload it to the LTspice files group.? I noticed that I wrote it with Lazarus 1.4.X, but that the latest version of Lazarus is 1.6.0 (32 or 64 bit).? I installed it but haven't tried it yet.? Lazarus is an open source version of Pascal / Delphi and works very well (fast, full featured and few bugs).

The version of the code I brought in has an experimental "Anneal" function that is intended to reorder the placement of the component symbols in order to minimize wire connection length and crossovers.? It is interesting but is not fully successful.

---In LTspice@..., <basier.philippe@...> wrote :

Hello Eetech00

Thanks for your answer. I am a little bit disappointed by it -:)

I hope analogspiceman could give me more details on the popup windows I see.

Regards
PhB

SMPS transformer behavior in B-H hysteresis curve

#90287

Hi, :

Execuse me, May I ask a question about "SMPS transformer behavior in B-H hysteresis curve" ?

I had uploaded a picture file at:

.png

This is due to the ideal to run simulation to show the B-H behavior of a SMPS transformer ,so that I need to know it before do the simulation.

But I got the question which I can't understand is that, in the (b) picture it says the behavior of forward & flyback are both belonged to first-quadrature and has the hysteresis which repeats one time while transformer run one duty cycle.

The question is the flyback is normally stored the energy in the primary winding while the power switch is ON,then release the energy in OFF duration, mapping to the B-H curve, when energy stored in the peak value, the B-H curve will point to the most right point and run back to left in OFF duration (release energy in secondary winding).

But the forward transfer the energy in the same time (ON state), how to describe/explain it has the same behavior of the flyback which has the?repetitive B-H hysteresis curve ?

I mean in the forward topology, the flux-linkage of primary and flux-linkage of secondary is direction-inversed, wouldn't it be equally eliminated in B-axis ,how could this be described in the B-H curve ?

Thank you for any opinion.

Best regards.

?

Re: SchBuilder.exe Windows10 #SchBuilder

#90286

Hello PhB,

I brought the code for the Schematic Builder program in today.? It is a little large for this group, but maybe I could upload it to the LTspice files group.? I noticed that I wrote it with Lazarus 1.4.X, but that the latest version of Lazarus is 1.6.0 (32 or 64 bit).? I installed it but haven't tried it yet.? Lazarus is an open source version of Pascal / Delphi and works very well (fast, full featured and few bugs).

The version of the code I brought in has an experimental "Anneal" function that is intended to reorder the placement of the component symbols in order to minimize wire connection length and crossovers.? It is interesting but is not fully successful.

---In LTspice@..., <basier.philippe@...> wrote :

Hello Eetech00

Thanks for your answer. I am a little bit disappointed by it -:)

I hope analogspiceman could give me more details on the popup windows I see.

Regards
PhB

Re: SchBuilder.exe Windows10 #SchBuilder

#90285

Hello Eetech00

You wrote :
"I run it on W10 with no problems... "

Did you succed to save? the schematic created by SchBuilder ?

I don't use linux? but native windows.

Regards
PhB

Re: SchBuilder.exe Windows10 #SchBuilder

#90284

Hello Eetech00

Thanks for your answer. I am a little bit disappointed by it -:)

I hpoe Analogspiceman could give me more details on the popup windows I see.

Regards
PhB

Re: "4 GROUP.zip" upload

#90283

A few days ago, Jeff asked:

? ?"Is there a "place" that has the definition of all the parameters of components, vto=-3, lambda=1.2e and such?"

The Help pages that come with LTspice are the reference for that.? But be aware of a few things:

Parameters like this depend on context.? For example, the parameters "Vto" and "Lambda" is used in at least three different places, and might not always mean exactly the same thing.? Also, the "Pb" parameter is defined for normal NMOS and PMOS FETs, but apparently not for VDMOS FETs (which is why you got that error message).

The Help page for MOSFETs has two large tables (and one small table) of parameters.? The first table is for NMOS and PMOS.? The second table is for VDMOS.

LTspice's Help documentation is somewhat lacking.? It has not evolved at the same rate that LTspice itself has, so many things are omitted or not correctly documented there.

The LTwiki () helps fill in many of the Help pages' missing pieces.

Most of these parameters that apply to transistors and diodes, are common to most SPICE programs, so the Internet might also help to find their definitions.? If you find something documented for Berkeley SPICE, or for PSPICE, it is *probably* the same for LTspice.

Regards,

Andy

Re: SchBuilder.exe Windows10 #SchBuilder

#90282

开云体育

I run it on W10 with no problems...

Show quoted text

On Aug 11, 2016, at 5:14 AM, 'John Woodgate' jmw1937@... [LTspice] <LTspice@...> wrote:

?

That indicates an internal issue in SchBuilder.exe, probably about compatibility with Windows10.
?
With best wishes DESIGN IT IN! OOO – Own Opinions Only
J M Woodgate and Associates Rayleigh England
?
Sylvae in aeternum manent.
?
From: LTspice@... [mailto:LTspice@...]
Sent: Thursday, August 11, 2016 12:26 PM
To: LTspice@...
Subject: [LTspice] Re: SchBuilder.exe Windows10
?
?
Hello John

"
Is there an option to set which folder to save to?? "

Yes, SchBuilder offers you to choose your directory.
SchBuilder is installed in a private partition (not C:) and I try to save the built schematic in this partition.

Regards
PhB

Re: SchBuilder.exe Windows10 #SchBuilder

#90281

Hi ,

Are you running it as administrator?

W10 is picky about such things.

Dave N

From: LTspice@... [mailto:LTspice@...]
Sent: 11 August 2016 12:26
To: LTspice@...
Subject: [LTspice] Re: SchBuilder.exe Windows10

Hello John

"
Is there an option to set which folder to save to?  "

Yes, SchBuilder offers you to choose your directory.
SchBuilder is installed in a private partition (not C:) and I try to save the built schematic in this partition.

Regards
PhB

Re: SchBuilder.exe Windows10 #SchBuilder

John Woodgate

#90280

开云体育

That indicates an internal issue in SchBuilder.exe, probably about compatibility with Windows10.

?

With best wishes DESIGN IT IN! OOO – Own Opinions Only

J M Woodgate and Associates Rayleigh England

?

Sylvae in aeternum manent.

?

Show quoted text

From: LTspice@... [mailto:LTspice@...]
Sent: Thursday, August 11, 2016 12:26 PM
To: LTspice@...
Subject: [LTspice] Re: SchBuilder.exe Windows10

?

Hello John

"
Is there an option to set which folder to save to?? "

Yes, SchBuilder offers you to choose your directory.
SchBuilder is installed in a private partition (not C:) and I try to save the built schematic in this partition.

Regards
PhB

Re: SchBuilder.exe Windows10 #SchBuilder

#90279

Hello John

"
Is there an option to set which folder to save to?? "

Yes, SchBuilder offers you to choose your directory.
SchBuilder is installed in a private partition (not C:) and I try to save the built schematic in this partition.

Regards
PhB

Re: No XP?

#90278

Hello Helmut.
LTpowerCAD II design only
monolithic buck step-down regulators.
SwcadIII design step-down and step-up regulators.

Bordodynov.

11.08.2016, 13:30, "helmutsennewald@... [LTspice]" <ltspice@...>:

Show quoted text

Hello PhB

Bododynow talked about this version.

I expect that not all jigs-examples from today will run with this old version of LTspice.

Similar and enhanced functions are now available with the program LTPowerCAD II.
One has to enter input and output voltage and current. The program will then list parts. It also includes an analysis tool creating a Bode plot for example.

Best regards,
Helmut

LTpowerCAD II

The LTpowerCAD II design tool is a complete power supply design tool program that can significantly ease the tasks of power supply design with Linear Technology ?Module regulators and many other products, mostly monolithic buck step-down regulators. Unlike conventional simulation tools, this LTpowerCAD tool guides users throughout the whole supply design process: it searches suitable LTC parts according to user’s supply specifications; then it guides the user to select and optimize circuit component values with suggestions and warnings. The tool shows real-time results of feedback loop bode plot, as well as the power stage performance. The design can be exported to LTspice simulation circuit for users to further verify their designs. The tool also provides PCB layout examples. Currently, this design tool works on Microsoft Windows based PC with Excel 2000, 2003, 2007, 2010 and 2013. With internet connection, the user can make real time update of the program and its component library. Contact LTpowerCAD@... for questions or support.

LTpowerPlanner

Included in the LTpowerCAD toolbox, there is also an LTpowerPlanner system architecture tool for system-level power management design and optimization.

* Download LTpowerCAD II
* LTpowerCAD II Users Guide
* LTpowerCAD II Quick Start
* List of Products Supported by LTpowerCAD II
View LTpowerCAD Videos

Re: SchBuilder.exe Windows10 #SchBuilder

John Woodgate

#90277

开云体育

It looks as though the program tries to save in a Windows protected location. Is there an option to set which folder to save to?

?

With best wishes DESIGN IT IN! OOO – Own Opinions Only

J M Woodgate and Associates Rayleigh England

?

Sylvae in aeternum manent.

?

Show quoted text

From: LTspice@... [mailto:LTspice@...]
Sent: Thursday, August 11, 2016 12:03 PM
To: LTspice@...
Subject: [LTspice] SchBuilder.exe Windows10

?

Hello Analogspiceman

Did you (or somebody else) try to run schbuilder;exe under W10?

When I run it , at the moment when I try to save the schematic I have apop windowwih:

" Unable to create file "
" Press OK to ignore and risk data corruption "
" Please cancel to kill the program "

I press OK but can't find the expected file anywhere.

I can see a trace of the file : a shortcut to the expected file in
%APPDATA%\Roaming\Micosoft\Windows

Regards
PhB

?

Re: No XP?

#90276

Hello Александр Бордодынов and Helmut

Thanks

Regards
PhB

SchBuilder.exe Windows10 #SchBuilder

#90275

Hello Analogspiceman

Did you (or somebody else) try to run schbuilder;exe under W10?

When I run it , at the moment when I try to save the schematic I have apop windowwih:

" Unable to create file "
" Press OK to ignore and risk data corruption "
" Please cancel to kill the program "

I press OK but can't find the expected file anywhere.

I can see a trace of the file : a shortcut to the expected file in
%APPDATA%\Roaming\Micosoft\Windows

Regards
PhB

Re: No XP?

#90274

Hello PhB

Bododynow talked about this version.

?

I expect that not all jigs-examples from today will run with this old version of LTspice.?

Similar and enhanced functions are now available with the program LTPowerCAD II.?

One has to enter input and output voltage and current. The program will then list parts. It also includes an analysis tool creating a Bode plot for example.

Best regards,

Helmut

LTpowerCAD II

The LTpowerCAD II design tool is a complete power supply design tool program that can significantly ease the tasks of power supply design with Linear Technology ?Module regulators and many other products, mostly monolithic buck step-down regulators. Unlike conventional simulation tools, this LTpowerCAD tool guides users throughout the whole supply design process: it searches suitable LTC parts according to user’s supply specifications; then it guides the user to select and optimize circuit component values with suggestions and warnings. The tool shows real-time results of feedback loop bode plot, as well as the power stage performance. The design can be exported to LTspice simulation circuit for users to further verify their designs. The tool also provides PCB layout examples. Currently, this design tool works on Microsoft Windows based PC with Excel 2000, 2003, 2007, 2010 and 2013. With internet connection, the user can make real time update of the program and its component library. Contact LTpowerCAD@... for questions or support.

LTpowerPlanner

Included in the LTpowerCAD toolbox, there is also an LTpowerPlanner system architecture tool for system-level power management design and optimization.

?

Re: PMBFJ620/2SK2145 or any other dual JFET-models exist for LTspice?

#90273

Thanks for this! :)

Re: ....list

#90272

But I am pretty much certain that neither Helmut nor Mike has written a
book about LTspice.  So it is not surprising that nothing comes up written
by them.

Well, Mike did write the Help utility that comes with LTspice, and it has
been formatted into a PDF file from time to time, so I guess you could call
that a "book".  But he has never "published" it for sale, and he doesn't
take personal credit as its author.  It is just the Help that comes with
the program he created.I think it's useful to add, once again, that Helmut is not affiliated,
in any way, with Linear, or Mike, nor is it this group, for that
matter.

-- 

Vlad
______________________
ltspicegoodies.ltwiki.org -- 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.