1.Use.TRAN analysis, not .AC, because that doesn't show non-linearity. 2. Check that the current through the output devices is very small with no input signal. On 2024-12-30 10:36, dlwarr911 via group

That's usually the value that matters. At lower voltages, the (calculated) inductance is normally higher, because of the nonlinearity of the B-H curve. But the small-signal inductance (as measured by

You are still struggling with a complicated transformer. Start with a simple winding with just one tap, with the mains supply across the whole winding, and no separate 'secondary' winding. When you ge

Use the cursor instead of MEAS statements, which are so easily wrongly-written. On 2024-12-26 22:32, Bell, Dave via groups.io wrote:

Inductance is proportional to turns squared, not square root. Start with a simpler winding with one tap, and look at the directions of current flow. In an autotransformer, the 'secondary' current oppo

Difficulty number 4. I don't know of anything similar, and I would say that it's very old technology. A modern stabilized AC supply would use quite different, probably high-frequency switching, techni

Quite apart from that, it's impossible to simulate that complex circuit without the full specification of every component. This is undoubtedly impracticable. On 2024-12-24 20:12, Bell, Dave via groups

Do both; put them in the .ASC folder AND in your library. Terabytes are ten a penny now. On 2024-12-23 22:26, Jerry Lee Marcel via groups.io wrote:

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

You can usually write 'µ' 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.

Well, it's very difficult to have 'comprehensive' without 'complex', unless you are prepared to write your own models, or add real-life parameters to existing simpler models. On 2024-12-22 15:29, Tom

What I mean is that there are few real-life BIBO opamps,from which SPICE models with real-life features, such as offset and PSRR could be produced. On 2024-12-22 15:03, Tom via groups.io wrote:

Yes, because it's quite easy, and probably cheaper, to use 2 or 3 sections of a quad opamp to make a good balanced-in/balanced-out circuit. On 2024-12-22 13:31, Tom via groups.io wrote:

Story of my life! That's why I usually use 'JMW' rather than 'JW', but at one time there were at least three people called John Michael Woodgate (only very distantly related, if at all) in Britain. On

I can live without them, and I'm sure Andy will provide all the help you need. On 2024-12-21 23:25, Andy I via groups.io wrote:

It will nearly do that if you create your own libraries for symbols and models. See 'Settings > Search paths' in the Help. You do have to select the folder from a drop-down list. On 2024-12-21 15:56,

It's unwise to store your stuff in the LTspice 'working copies' of the native folders, that also should never be touched. This is because your 'LTspice' becomes different from those of everyone else,

Very good advice. You can also, with advantage, do both; save in both locations, so that in 2027 you won't need to recall which schematic directory the model is in. On 2024-12-20 14:45, Andy I via gro

I suppose that Rds depends on die temperature, too, so large signal Rds is a thicket, not a value. On 2024-12-20 12:25, Andy I via groups.io wrote:

Beta, Betta, Bettastill. On 2024-12-19 22:28, Andy I via groups.io wrote: