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I didn't check the LM317A. I hadn't appreciated this was a new device. Traditionally, the "A" suffix denoted a tightened tolerance of the basic device. More recently, TI started using it for

Thanks Tony. Yes, there’s the LT3080 and its ilk as well as many others. Appreciate your forthcoming effort in checking what you have and uploading it. Sent: Friday, April 4, 2025 6:46 PM To:

Agree with the “precise” correction. To make a current source, a positive supply is connected to the LM317’s IN pin, a resistor R is connected between OUT and ADJ, and the ADJ pin is connected

Certainly room for improvement, but FAR better than squinting at the screen to read the net names, or worse, hovering the probe, because I haven’t assigned all of them yet! Sent: Saturday, April 05,

I usually ignore that box in the top right. Ctrl-F > Type text > Text becomes highlighted if it is found. That's all I needed to see. LTspice always was a bit picky about what it found.? e.g., it

Thank you.

I love “rural charm of LTspice”! Wild critters and cow pies… Sent: Saturday, April 05, 2025 9:32 AM To: [email protected] Subject: EXTERNAL: Re: [LTspice] .MEAS scripting All part of the

All part of the fascinating rural charm of LTspice.?

I felt very stupid a while after that email: The search box seems always to be there, but only becomes active after Ctrl-F. I just never saw anything pop up or change, so ASSumed it didn’t work! The

What I meant is that the search context is just text. You can't specify what type of object you're searching for. -- Regards, Tony --<br>Regards,<br>Tony<br>

'text' in this context may mean a specific character set, such as 'Extended ASCII'. I've not found a way to put Greek letters in any LTspice text, but some people seem to be able to. Apart form '?',

Can a net name (or any other schematic text) be anything other than text? Andy

Find <NETNAME> does work in XVII. Ctrl-F brings up a search box at the top right in the icon bar. Enter any text and it will be highlighted if it exists, and if it includes a net name, the net

I realize the difficulty. The direct language used by Jonathan King doesn't bother me; it's what moves us forward, provided it's objective.

All the other responders make good points. First, understand how a BJT works.? After that, improve your understanding on modeling a BJT in LTSPICE.? Apologies for being blunt, but there is not a

The other ones I have are decent enough. I'll check them against the datasheet, before uploading anything. TBH, you can do a lot better than the LM317 these days. -- Regards, Tony

That's one of the changes I had to make. The model is non-workable as downloaded, as the pin OUT_1 doesn't connect to anything. I just deleted it. I guess no one has actually checked it. Sad. --

To be more precise, it says that PSRR Response "hasn't been modelled", whatever that means.? It might mean only that the effect may be there but nobody has calibrated or checked it yet for

There are at least two unencrypted models I saw today: LM317_TRANS (No note on PSRR) and a more extensive model LM317A_TRANS, which states: * Model Usage Notes: * * A. Features have been modelled * 1.

Yes, a full transistor model would be great! The problem is that the notes in the T.I. model specifically state that it is NOT applicable to PSRR. And the results I get when I do simulate for PSRR are