Adding a permanent component to LTspice - Revision history

Lewispaul: Add DISQUS for comments

2011-09-21T00:37:17Z

Add DISQUS for comments

Lewispaul: Add a note about the portability of 'permanent' LTspice components.

2011-08-18T16:47:21Z

Add a note about the portability of 'permanent' LTspice components.

Lewispaul at 19:36, 6 August 2010

2010-08-06T19:36:24Z

Uwezi at 14:25, 6 April 2010

2010-04-06T14:25:56Z

Lewispaul2 at 22:04, 10 August 2009

2009-08-10T22:04:26Z

Lewispaul2 at 22:18, 9 August 2009

2009-08-09T22:18:41Z

Lewispaul2: /* Adding LM339 as a Comparator */

2009-08-09T21:45:36Z

‎Adding LM339 as a Comparator

Analogspiceman: moved Adding a permanent component to LTSpice to Adding a permanent component to LTspice

2009-08-08T19:13:32Z

moved Adding a permanent component to LTSpice to Adding a permanent component to LTspice

Analogspiceman at 19:11, 8 August 2009

2009-08-08T19:11:32Z

68.202.0.100: Created page with '== Adding LM339 as a Comparator == This technique allows you to add a frequently used part to the menu of LTSpice. In this way you don't have to use include statements, etc. T…'

2009-08-08T19:00:18Z

Created page with '== Adding LM339 as a Comparator == This technique allows you to add a frequently used part to the menu of LTSpice. In this way you don't have to use include statements, etc. T…'

New page

== Adding LM339 as a Comparator ==

This technique allows you to add a frequently used part to the menu of LTSpice. In this way you don't have to use include statements, etc. These parts should not be overwritten during an LTSpice update.

1) Start with an existing .asy file if possible. Here we can use LTC1441.asy:

----
<PRE>
Version 4
SymbolType CELL
LINE Normal -32 32 32 64
LINE Normal -32 96 32 64
LINE Normal -32 32 -32 96
LINE Normal -28 48 -20 48
LINE Normal -28 80 -20 80
LINE Normal -24 84 -24 76
LINE Normal 0 32 0 48
LINE Normal 0 96 0 80
LINE Normal 4 44 12 44
LINE Normal 8 40 8 48
LINE Normal 4 84 12 84
WINDOW 0 16 32 Left 0
WINDOW 3 16 96 Left 0
SYMATTR Value LTC1441
SYMATTR Prefix X
SYMATTR SpiceModel LTC.lib
SYMATTR Value2 LTC1441
SYMATTR Description Dual Ultralow Power Comparator with Reference
PIN 32 64 NONE 0
PINATTR PinName OUT
PINATTR SpiceOrder 1
PIN 0 96 NONE 0
PINATTR PinName V-
PINATTR SpiceOrder 2
PIN -32 80 NONE 0
</PRE>
----

2) Edit the lines above as shown:

WAS:
<PRE>
SYMATTR Value LTC1441
SYMATTR Prefix X
SYMATTR SpiceModel LTC.lib
SYMATTR Value2 LTC1441
SYMATTR Description Dual Ultralow Power Comparator with Reference

NOW:

SYMATTR Value LM339
SYMATTR Prefix X
SYMATTR SpiceModel LM339.sub
SYMATTR Value2 LM339
SYMATTR Description Quad Single Supply 3V/5V Comparator LM339
</PRE>
3) Save this file as LM339.asy under \lib\sym\Comparators [http://alternateenergies.com/LTwiki/files/LM339.asy LM339.asy]

4) Put [http://alternateenergies.com/LTwiki/files/LM339.sub LM339.sub] file, put in \lib\sub

5) When LTSpice opens again, LM339 should be available as a component under 'Comparators'.

Note: Additionally look at [http://alternateenergies.com/LTwiki/files/LM339_DIP14.asy LM339_DIP14.asy] You may add this as well, if you want all four comparators.

← Older revision		Revision as of 00:37, 21 September 2011
Line 80:		Line 80:
	An Example using LM339 [http://alternateenergies.com/LTwiki/files/LM339_test.asc LM339_test.asc]		An Example using LM339 [http://alternateenergies.com/LTwiki/files/LM339_test.asc LM339_test.asc]
	[http://alternateenergies.com/LTwiki/files/LM339_LTspice.png A screenshot of the LM339 test file]		[http://alternateenergies.com/LTwiki/files/LM339_LTspice.png A screenshot of the LM339 test file]
		+
		+	{{#widget:DISQUS
		+	\|id=ltwiki
		+	\|uniqid={{PAGENAME}}
		+	\|url={{fullurl:{{PAGENAME}}}}
		+	}}

@@ Line 1: / Line 1: @@
 [http://www.zen22142.zen.co.uk/ltspice/addnewparts.htm A good tutorial for adding new components]
-See ''[[Components_Library]]'' for parts ready to be added to LTspice.
+See ''[[Components_Library]]'' for parts ready to be added to LTspice.  Also please note this procedure allows for '''''portable components''''' as well.  You simply add the subcircuits and symbols created below to the schematic folder you wish to make portable.  You do not have to remove your permanent components either.  LTspice uses a hierarchy of search for symbols and subcircuits.
 == Adding LM339 as a Comparator ==

← Older revision		Revision as of 19:36, 6 August 2010
Line 1:		Line 1:
		+	[http://www.zen22142.zen.co.uk/ltspice/addnewparts.htm A good tutorial for adding new components]
		+
	See ''[[Components_Library]]'' for parts ready to be added to LTspice.		See ''[[Components_Library]]'' for parts ready to be added to LTspice.

← Older revision		Revision as of 22:04, 10 August 2009
Line 1:		Line 1:
		+	See ''[[Components_Library]]'' for parts ready to be added to LTspice.
		+
	== Adding LM339 as a Comparator ==		== Adding LM339 as a Comparator ==

← Older revision		Revision as of 22:18, 9 August 2009
Line 72:		Line 72:

	An Example using LM339 [http://alternateenergies.com/LTwiki/files/LM339_test.asc LM339_test.asc]		An Example using LM339 [http://alternateenergies.com/LTwiki/files/LM339_test.asc LM339_test.asc]
		+	[http://alternateenergies.com/LTwiki/files/LM339_LTspice.png A screenshot of the LM339 test file]

@@ Line 49: / Line 49: @@
 ) Edit the lines above as shown:
 WAS:
-<PRE>
 SYMATTR Value LT1017
 SYMATTR Prefix X

@@ Line 3: / Line 3: @@
 This technique allows you to add a frequently used part to the menu of LTspice.  In this way you don't have to use include statements, etc.  These parts should not be overwritten during an LTspice update.
-) Start with an existing .asy file if possible.  Here we can use LTC1441.asy:
+) Start with an existing .asy file if possible.  Here we can use LT1017.asy:
 ----
@@ Line 9: / Line 9: @@
 Version 4
 SymbolType CELL
-LINE Normal -32 32 32 64
+LINE Normal -32 -32 32 0
-LINE Normal -32 96 32 64
+LINE Normal -32 32 32 0
-LINE Normal -32 32 -32 96
+LINE Normal -32 -32 -32 32
-LINE Normal -28 48 -20 48
+LINE Normal -28 -16 -20 -16
-LINE Normal -28 80 -20 80
+LINE Normal -28 16 -20 16
-LINE Normal -24 84 -24 76
+LINE Normal -24 20 -24 12
-LINE Normal 0 32 0 48
+LINE Normal 0 -32 0 -16
-LINE Normal 0 96 0 80
+LINE Normal 0 32 0 16
-LINE Normal 4 44 12 44
+LINE Normal 4 -20 12 -20
-LINE Normal 8 40 8 48
+LINE Normal 8 -24 8 -16
-LINE Normal 4 84 12 84
+LINE Normal 4 20 12 20
-WINDOW 0 16 32 Left 0
+WINDOW 0 16 -32 Left 0
-WINDOW 3 16 96 Left 0
+WINDOW 3 16 32 Left 0
-SYMATTR Value LTC1441
+SYMATTR Value LT1017
 SYMATTR Prefix X
-SYMATTR SpiceModel LTC.lib
+SYMATTR SpiceModel LTC1.lib
-SYMATTR Value2 LTC1441
+SYMATTR Value2 LT1017
-SYMATTR Description Dual Ultralow Power Comparator with Reference
+SYMATTR Description µPower Dual Comparator(1 of 2)
-PIN 32 64 NONE 0
+PIN -32 16 NONE 0
-PINATTR PinName OUT
+PINATTR PinName In+
 PINATTR SpiceOrder 1
-PIN 0 96 NONE 0
+PIN -32 -16 NONE 0
 PINATTR PinName V-
-PINATTR SpiceOrder 2
+PINATTR SpiceOrder 4
-PIN -32 80 NONE 0
+PIN 32 0 NONE 0
 </PRE>
 ----
@@ Line 41: / Line 49: @@
 WAS:
 <PRE>
-SYMATTR Value LTC1441
+SYMATTR Value LT1017
 SYMATTR Prefix X
-SYMATTR SpiceModel LTC.lib
+SYMATTR SpiceModel LTC1.lib
-SYMATTR Value2 LTC1441
+SYMATTR Value2 LT1017
-SYMATTR Description Dual Ultralow Power Comparator with Reference
+SYMATTR Description µPower Dual Comparator(1 of 2)
 NOW:
@@ Line 53: / Line 61: @@
 SYMATTR SpiceModel LM339.sub
 SYMATTR Value2 LM339
-SYMATTR Description Quad  Single Supply 3V/5V Comparator LM339
+SYMATTR Description Quad Single Supply 3V/5V Comparator LM339
 </PRE>
 ) Save this file as LM339.asy under \lib\sym\Comparators  [http://alternateenergies.com/LTwiki/files/LM339.asy LM339.asy]
@@ Line 62: / Line 70: @@
 Note: Additionally look at [http://alternateenergies.com/LTwiki/files/LM339_DIP14.asy LM339_DIP14.asy]  You may add this as well, if you want all four comparators.

← Older revision	Revision as of 19:13, 8 August 2009
(No difference)