Re: Separate from .CKT for .lib file

Thank you very much for your advice.

Because of NDA with the company I got the file, it is difficult for me to upload the file.

Can I find any example where the lib file is separated according to the components?

I am sorry for the confusion about "The lib file has many raw data which are unknown to me".

I meant I do not understand the meaning of contents o fckt or lib file.

For example, there are hundreds of lines and each lines have meaning.

By seeing these lines, I do not understand and also which lines belong to photodiode and which lines belong to transimpedance amplifier.

?

I am sorry for my poor knowledge about it.

?

Re: Separate from .CKT for .lib file

#156984

Thank you very much for your comments. Actually because of NDA with the company I received the file, I can not upload the lib file.

Can I find any example where the lib file is separated according to the components?

Re: Looking for a working closed loop LLC Converter

#156983

I have designed a good number of power supplies, but I would not attempt an LLC without a good theoretical background.? There are few specialists that crank out these designs and they usually know a great deal about the magnetics as well as the theory.

? ? Mike

On Tuesday, December 17, 2024 at 06:31:46 AM CST, zhengsq1989 via groups.io <zhengsq1989@...> wrote:

Hi Tony,

?

thank you! study in progress.

?

Regards,

Shengqiao

LMH6321 Buffer Not Working

#156982

开云体育

Those two files don't help, I think. We need the .ASC, and please ZIP files if there is more than 1 to upload.

On 2024-12-22 23:01, Group Notification wrote:

The following items have been added to the Files area of the [email protected] group.

/Temp/LMH6321.asy

/Temp/LMH6321.MOD

By: info@...

Description:
LTspice says my symbol has more pins than the model. Please help.

-- 
OOO - Own Opinions Only
Best Wishes
John Woodgate
Keep trying

Virus-free.

Re: LMH6321 Buffer Not Working

#156981

Make sure your symbol pins are numbered in consecutive order: 1, 2, 3, 4 works, 1, 3, 4, 5 (or any other sequence with a missing number) doesn't, even though the number of pins is correct.

Show quoted text

On Sun, Dec 22, 2024, 2:54 PM info via <info=[email protected]> wrote:

TI supplies a seemingly straightforward spice model for its LMH6321 Unity Gain Buffer.? It requires a modified opamp symbol with only 4 nodes, (IN V+ V- OUT).

I edited a standard opamp symbol to have only the 4 nodes and get the resulting error message:? "Fatal Error: Port(pin) count mismatch between the definition of subcircuit "lmh6321" and instance: "xu1"
The instance has more connection terminals than the definition."

?

I count only 4 pins on the model and 4 pins on my symbol.? Can you see what I am doing wrong?? I will upload my files to temp.

?

Thanks,

Steve Hogan

?

?

?

?

?

?

?

?

?

Ferromagnetic core modeling.

#156980

开云体育

You can usually write '?' in email and elsewhere using ALT-0181 on the numeric keypad.

On 2024-12-22 22:51, Richard Andrews via groups.io wrote:

Thanks Dave.

-- 
OOO - Own Opinions Only
Best Wishes
John Woodgate
Keep trying

Virus-free.

Re: Confused, adding a pin to an existing Symbol and .cir

#156979

开云体育

Never mind, I finally figured it out:

I needed to change only the Spice Model line, to make it unique to the instance.

Then, the hidden control voltage must be that same unique name.

?

Dave

?????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????

?

Show quoted text

From: [email protected] <[email protected]> On Behalf Of Bell, Dave via groups.io
Sent: Sunday, December 22, 2024 12:42 PM
To: [email protected]
Subject: EXTERNAL: Re: [LTspice] Confused, adding a pin to an existing Symbol and .cir

?

Sorry – I forgot to click “Notify users” in the upload:? Vpct_pots.zip

?

From: [email protected] <[email protected]> On Behalf Of Bell, Dave via groups.io
Sent: Sunday, December 22, 2024 12:41 PM
To: [email protected]
Subject: EXTERNAL: [LTspice] Confused, adding a pin to an existing Symbol and .cir

?

Attempting to modify an archive Pot component, to add a wired Pin instead of a hidden net name for control input.

In order to use more than one pot in a circuit, the SUBCKT definition and instance parameters need to be modified for each pot placed.

I’d like to add a pin, and change the SUBCKT definition to use that pin rather than a hidden net name.

?

I’ve added a pin (4), removed the pin label “Vpct” and used V(4) to set the value of B1, but that’s not working.

When Run, LTspice complains that the pin count of the instance doesn’t match the definition.

?

The uploaded zip has a working model, with the separate embedded SUBBCKT definitions.

How can I make the mod, to add a control pin and have one includable .cir ??

?

Thanks,

Dave

Confused, adding a pin to an existing Symbol and .cir

#156978

开云体育

Never mind, I finally figured it out:

I needed to change only the Spice Model line, to make it unique to the instance.

Then, the hidden control voltage must be that same unique name.

?

Dave

?????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????

Show quoted text

From: [email protected] <[email protected]> On Behalf Of Bell, Dave via groups.io
Sent: Sunday, December 22, 2024 2:33 PM
To: [email protected]
Subject: EXTERNAL: Re: [LTspice] Ferromagnetic core modeling.

?

In square mm. 1 mm=1e-3 m, 1 sq mm = 1e-6 sq m

?

From: [email protected] <[email protected]> On Behalf Of Richard Andrews via groups.io
Sent: Sunday, December 22, 2024 2:17 PM
To: [email protected]
Subject: EXTERNAL: Re: [LTspice] Ferromagnetic core modeling.

?

I am reading . "A is the bead magnetic cross section in square meters, use dimensions C*(A-B)/2, area is in mm2 hence the u".

?

So, is the area in meters, micrometers, or millimeters? hence the u?

?

Seasons Greetings.

LMH6321 Buffer Not Working

#156976

TI supplies a seemingly straightforward spice model for its LMH6321 Unity Gain Buffer.? It requires a modified opamp symbol with only 4 nodes, (IN V+ V- OUT).

I edited a standard opamp symbol to have only the 4 nodes and get the resulting error message:? "Fatal Error: Port(pin) count mismatch between the definition of subcircuit "lmh6321" and instance: "xu1"
The instance has more connection terminals than the definition."

?

I count only 4 pins on the model and 4 pins on my symbol.? Can you see what I am doing wrong?? I will upload my files to temp.

?

Thanks,

Steve Hogan

?

Re: Ferromagnetic core modeling.

#156975

Thanks Dave.

Re: Ferromagnetic core modeling.

#156974

开云体育

In square mm. 1 mm=1e-3 m, 1 sq mm = 1e-6 sq m

?

Show quoted text

From: [email protected] <[email protected]> On Behalf Of Richard Andrews via groups.io
Sent: Sunday, December 22, 2024 2:17 PM
To: [email protected]
Subject: EXTERNAL: Re: [LTspice] Ferromagnetic core modeling.

?

I am reading . "A is the bead magnetic cross section in square meters, use dimensions C*(A-B)/2, area is in mm2 hence the u".

?

So, is the area in meters, micrometers, or millimeters? hence the u?

?

Seasons Greetings.

Re: Ferromagnetic core modeling.

#156973

I am reading . "A is the bead magnetic cross section in square meters, use dimensions C*(A-B)/2, area is in mm2 hence the u".

?

So, is the area in meters, micrometers, or millimeters? hence the u?

?

Seasons Greetings.

Re: Confused, adding a pin to an existing Symbol and .cir

#156972

开云体育

Sorry – I forgot to click “Notify users” in the upload:? Vpct_pots.zip

?

Show quoted text

From: [email protected] <[email protected]> On Behalf Of Bell, Dave via groups.io
Sent: Sunday, December 22, 2024 12:41 PM
To: [email protected]
Subject: EXTERNAL: [LTspice] Confused, adding a pin to an existing Symbol and .cir

?

Attempting to modify an archive Pot component, to add a wired Pin instead of a hidden net name for control input.

In order to use more than one pot in a circuit, the SUBCKT definition and instance parameters need to be modified for each pot placed.

I’d like to add a pin, and change the SUBCKT definition to use that pin rather than a hidden net name.

?

I’ve added a pin (4), removed the pin label “Vpct” and used V(4) to set the value of B1, but that’s not working.

When Run, LTspice complains that the pin count of the instance doesn’t match the definition.

?

The uploaded zip has a working model, with the separate embedded SUBBCKT definitions.

How can I make the mod, to add a control pin and have one includable .cir ??

?

Thanks,

Dave

Confused, adding a pin to an existing Symbol and .cir

#156971

开云体育

Attempting to modify an archive Pot component, to add a wired Pin instead of a hidden net name for control input.

In order to use more than one pot in a circuit, the SUBCKT definition and instance parameters need to be modified for each pot placed.

I’d like to add a pin, and change the SUBCKT definition to use that pin rather than a hidden net name.

?

I’ve added a pin (4), removed the pin label “Vpct” and used V(4) to set the value of B1, but that’s not working.

When Run, LTspice complains that the pin count of the instance doesn’t match the definition.

?

The uploaded zip has a working model, with the separate embedded SUBBCKT definitions.

How can I make the mod, to add a control pin and have one includable .cir ??

?

Thanks,

Dave

Re: Whither 4053_tercio.asy

#156970

"By Jove, I think he's got it!"

Many thanks!??

John (Waugaman, that is)

?

Re: Looking for ideal fully differential amplifier spice model

#156969

开云体育

On 22/12/2024 17:58, jad700 via groups.io wrote:

To make an ?IDEAL fully differential amplifier spice model...

Simply use a e or e2 Component with whatever gain you want ( In V/V) as a parameter.

(Right click on it and give value V for gain of 100 )

Real DIDO amps have a common mode voltage input.

--

Regards,
Tony

Re: Whither 4053_tercio.asy

#156968

开云体育

Le 22/12/2024 à 15:04, eewiz via groups.io a écrit?:

Hello John W.

I have uploaded the complete Robertugo/SwitchAna files from my personal archive.

It appears to contain all that is needed for the 4051, 52 and 53 parts.

Except the model and symbol for CD4024 that are needed to run most of the circuits!

Re: Looking for ideal fully differential amplifier spice model

#156967

On Sun, Dec 22, 2024 at 08:58 AM, <jad700@...> wrote:

To make an ?IDEAL fully differential amplifier spice model...

Simply use a e or e2 Component with whatever gain you want ( In V/V) as a parameter.

(Right click on it and give value 100 for gain of 100 )

Re: Looking for ideal fully differential amplifier spice model

#156966

To make an ?IDEAL fully differential amplifier spice model...

Simply use a e or e2 Component with whatever gain you want ( In V/V) as a parameter.

(Right click on it and give value V for gain of 100 )

Re: Looking for ideal fully differential amplifier spice model

#156965

This seems to work. G=100MEG seems a bit much.

?

* Ideal Fully Differential OpAmp

* /g/LTspice/topic/50198770#msg46663

*

.subckt D_OpAmp inp inn outp outn vcm

R1 outp n01 1

R2 n01 outn 1

G1 n01 outp inp inn 100MEG

G2 outn n01 inp inn 100MEG

G3 0 n01 vcm n01 100MEG

.ends D_OpAmp