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LTspice for Theremin circuits

FredM

LTspice is available free from http://www.linear.com/

This simulator is superb, and suitable for all designers, from beginners to 'advanced'.. It is well suited to simulation of Theremin circuits.

 

The best tutorial I have found to get you started can be downloaded at

 

This zip file contains a PowerPoint presentation SWCAD.PPT  and running this teaches you all the basics you need start using LTspice.

 

The Full reference manual is here: http://ltspice.linear.com/software/scad3.pdf

A few good guides:

http://web.cecs.pdx.edu/~ssuzuki/engr_notes/ltspice/LTSpice_help.pdf (A good tutorial, particularly on setting up simulation types and creating subcircuits.)

http://pages.suddenlink.net/wa5bdu/ltguide.pdf  (useful tutorial - data on transformers..)

http://home.mindspring.com/~eeweb/ltspicesubckts.pdf (more advanced sub-circuits)

http://denethor.wlu.ca/ltspice/  (Tutorial and lots of good links)
 
LTspice is best for Analogue simulations in my opinion - The digital models are a pain.
 
For anyone having problems downloading LTspice, I have attached it to this message.. Probably not something I should be doing.. but as I am promoting their software, I hope Linear Technology wont object!
Attachments:
LTspiceIV.exe.zip
imagescad3[1].pdf
Parents

  • I went to the Linear Tech site and started to download the LTSpice installer. I was told that my email address is insufficiently sweet smelling. Their list of rejects includes gmail.com, hotmail.com and yahoo.com. OK, I can see their point.

     

    They allow that they might register you if you write to them, so I copied the page, after replacing my password choice with spaces, and wrote to them. We'll see what comes of it.

     

    In the mean time, I think I'll see how bad a time MultiSim (the free version from Analog Devices) does on understanding LTSpice files. At least I haven't been rejected by them (yet).

Reply

  • I went to the Linear Tech site and started to download the LTSpice installer. I was told that my email address is insufficiently sweet smelling. Their list of rejects includes gmail.com, hotmail.com and yahoo.com. OK, I can see their point.

     

    They allow that they might register you if you write to them, so I copied the page, after replacing my password choice with spaces, and wrote to them. We'll see what comes of it.

     

    In the mean time, I think I'll see how bad a time MultiSim (the free version from Analog Devices) does on understanding LTSpice files. At least I haven't been rejected by them (yet).

Children
  • in reply to e14 Contributor

    I have attached the LTspice "original" to the first posting, just in case my WinZip is incompatable with yours ;-) ..

    Element-14 seems to do ita own zipping on .exe files..

     

    I have also added the documentation (pdf) in case you cant get that from Linear Technology

     

    Getting other simultors to run each others files aint worth the effort.. netlists may be compatible, but thats where it ends - symbol formats, schematic formats etc are all different - its easier just to re-draw the schematic than to try to export / import files..

     

    I mainly use LabCenter Proteus (to me, this is by far the best combined schematic / simulation / PCB package available at any price) Proteus allows simulation of microcontrollers - one can simulate entire MCU/Digital/PLD/Analogue systems, and do hardware and software debugging simultaneously - Almost as good as having a real circuit, ICE, Logic analyser, oscilloscope etc ... Except that complex circuits do not simulate in real time.. so what one might do in 10 minutes on the bench can take a couple of hours on the PC!

     

    Apart from that - the idea is great :-)  In reality, one usually debugs in stages - and this really works well (for everything except Theremins :-()

  • in reply to e14 Contributor

    Hi Ray,

    I have no problems.. doesnt even ask for registration.

    see attached .zip

    Attachments:
    Simulator.zip