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#16
Posted: Fri Dec 18, 2009 7:04 pm
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
Posted: Fri Dec 18, 2009 7:41 pm
by Mike H
SCR's (thyristors)
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#18
Posted: Mon Dec 28, 2009 9:50 pm
by Mike H
Updated, see below:
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#19
Posted: Mon Dec 28, 2009 9:55 pm
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
Posted: Thu Jan 07, 2010 12:27 am
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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#21
Posted: Thu Jan 07, 2010 12:30 am
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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#22
Posted: Wed Jan 13, 2010 6:12 pm
by Mike H
Mistake! in New Triodes, had forgotten the A G K nodes on the bottom lot of ECL ones
Fixed now.
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#23
Posted: Sat Jan 30, 2010 5:24 pm
by Mike H
Is anyone else seeing double of every attachment?
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#24
Posted: Sat Jan 30, 2010 5:47 pm
by Nick
Err, yes, wonder what I have broken...
#25
Posted: Sat Jan 30, 2010 5:54 pm
by Mike H
LOL
I tried removing only one, the action deletes both
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
Posted: Sat Jan 30, 2010 5:59 pm
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.
#27
Posted: Sat Jan 30, 2010 6:04 pm
by Mike H
That'll do it ~ yep OK now
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#28
Posted: Sat Jan 30, 2010 6:36 pm
by Mike H
LTspice User Guide
BTW I found this on the net, LTspice guide PDF
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#29
Posted: Sat Jan 30, 2010 7:50 pm
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
Posted: Sat Jan 30, 2010 9:27 pm
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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