| Little Class D question - Click HERE for Original Thread |
| The Dragon |
Dear members of this forum :)
I'm not studying electronics, but for some project at school they require us to make everything by us selfs.
I have this little scheme that describes a simple class D
my question is I can't simulate this thing because multisim does not have components like the BAT 54 diode, opamp AD8651 and the AC type shmitt-trigger (74AC14)
I wanted to simulate the effects of using different IC's to determine the fastest one or an equivalent IC if they don't have the one I need in the shop.
so my question finally is can someone simulate this for me or are there any programs for free that does have the required components?
btw: if anyone needs the scheme, just mail me :)
thanks in advance |
|
|
| The Dragon |
it is a great program idd, but from what I have I'll need to modificate my scheme, because it does not have 74x IC's
kinda sucks, I was going to make it today and hope it goes well :) |
|
|
| Genomerics |
There is an LTspice user group on Yahoo.... It's run by Helmut Sennewald who is a really helpful bloke.
http://tech.groups.yahoo.com/group/LTspice/
You have to join
Once you have then in the files section under lib.....
http://tech.groups.yahoo.com/group/...e/files/%20Lib/
You get lots of nice stuff including models for 4000 series and 74 series logic.
http://tech.groups.yahoo.com/group/...tal%2074HCTxxx/
I'll probably get this wrong but...... You put the .lib file into the LTspice library directory..... under sub
C:\Program Files\LTC\SwCADIII\lib\sub
Then you extract the symbol files into a directory you create with a suitable name under sym
C:\Program Files\LTC\SwCADIII\lib\sym
LTspice will pick up on that and they should appear on the part you place components with.
To use the bits you have to place a spice directive on you schematic, for example.
.include C:\Program Files\LTC\SwCADIII\lib\sub\CD4000.lib
If that doesn't work ask on the forum.......
Have fun
DNA |
|
|
| The Dragon |
| Thank you very much :) |
|
|
|
|
