LTspiceIV Models

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Mike H
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#16

Post by Mike H »

LM317 Regulator (take #2)

Model simulates datasheet spec.

Max. o/p current:

Up to 15V across In / Out, 2.2A. Is then limited to 2.2A max.

If V across In / Out > 15.5V then max. o/p is limited to 400mA.


Edit ~ modified 18/06/2010 to make much simpler, fewer components and thrown away the thermal shutdown part. Can take too long to run and raise timestep errors. Well it was a while ago since I first did it.

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#17

Post by Mike H »

SCR's (thyristors)


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#18

Post by Mike H »

Updated, see below:

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Last edited by Mike H on Thu Jan 07, 2010 12:23 am, edited 1 time in total.
 
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#19

Post by Mike H »

Oh by the way my simple potentiometer model:

Only try not to get it upside down because bottom (wiper position 0) will become top (position 1) so will be confusing


Updated 01 Aug 2010

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#20

Post by Mike H »

New Triode Models

Using the Improved vacuum tube models formulas from here:

http://www.normankoren.com/Audio/Tubemo ... ticle.html

I found a text file of his on the net with loads of models in it

Updated 06 January 2010, 63 triodes! Even omitting umpteen duplications of JJ and Svetlana types. Plus a couple of my own

UPDATED 31/01/21010 due to mistake!

Go to All Valves.zip

http://www.audio-talk.co.uk/phpBB2/view ... 1641#41641

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Last edited by Mike H on Fri Feb 12, 2010 12:36 pm, edited 3 times in total.
 
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#21

Post by Mike H »

New Tetrode Models

Norman Koren's 'new formulas', 35 types listed (duplications mostly omitted)


Edit
Updated 11 Feb 2010, mistake naming of grid anode capacitance

Go to All Valves.zip

http://www.audio-talk.co.uk/phpBB2/view ... 1641#41641

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Last edited by Mike H on Fri Feb 12, 2010 12:37 pm, edited 3 times in total.
 
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#22

Post by Mike H »

Mistake! in New Triodes, had forgotten the A G K nodes on the bottom lot of ECL ones

Image


Fixed now.

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#23

Post by Mike H »

Is anyone else seeing double of every attachment?

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Nick
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#24

Post by Nick »

Err, yes, wonder what I have broken...
Little known fact, coherent thought can destructively interfere with itself leaving no thought at all, that’s why I prefer incoherent thought.
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#25

Post by Mike H »

LOL :lol:


I tried removing only one, the action deletes both :shock:

Can't be two files same name or ID number so must be two copies in two different storage locations?

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#26

Post by Nick »

No, I moved the database to a different server, somehow I seem to have inserted every row twice in that table. Should be fixed now.
Little known fact, coherent thought can destructively interfere with itself leaving no thought at all, that’s why I prefer incoherent thought.
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#27

Post by Mike H »

That'll do it ~ yep OK now Image

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#28

Post by Mike H »

LTspice User Guide


BTW I found this on the net, LTspice guide PDF

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#29

Post by Mike H »

As there's a bit of confusion about this, this is how the drop down combo select lists work ~ double-click on SpiceModel line:

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#30

Post by Mike H »

Valve Single Diodes

Just either single or double diodes with separate cathodes, is not in this list if a full-wave rectifier type with one common cathode.

Go to All Valves.zip

http://www.audio-talk.co.uk/phpBB2/view ... 1641#41641

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Last edited by Mike H on Fri Feb 12, 2010 12:38 pm, edited 1 time in total.
 
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