Free ellectronic circuit simulator.....WOW!

bikezappa
bikezappa Posts: 2,463
edited September 2011 in Electronics
I have been reading up on electronic circuits and they become very complex mathematically if multiple components are added.
If you want a free electronic simulator that is very easy to use
1. Google "LTSPICE" and download it free

http://www.linear.com/designtools/software/

2. Go to Google videos and search "LTSPICE TUTORIAL"

youtube has some nice examples of this tool.

http://www.youtube.com/watch?v=GmzfJa2GS7c&feature=relmfu

and there is a three part tutorial that you can follow and within 10 minutes be able to analyze a circuit.

Of course then you can bread board the circuit to verify the results

The simulator is just amazing.
Post edited by bikezappa on

Comments

  • engtaz
    engtaz Posts: 7,669
    edited September 2011
    Thanks
    engtaz

    I love how music can brighten up a bad day.
  • bikezappa
    bikezappa Posts: 2,463
    edited September 2011
    Did you play the thre youtubes showing examples?

    That's a degree in EE.

    You can design amplifiers and cross overs if you know the C and L values of the speakers.
  • DarqueKnight
    DarqueKnight Posts: 6,765
    edited September 2011
    bikezappa wrote: »
    I have been reading up on electronic circuits and they become very complex mathematically if multiple components are added.

    Indeed.
    bikezappa wrote: »
    Did you play the thre youtubes showing examples?

    That's a degree in EE.

    You can design amplifiers and cross overs if you know the C and L values of the speakers.

    There is a lot more to designing amplifiers and crossovers than plugging numbers into simulation software. The designers of these software tools assume the user's mastery of the theoretical concepts pertaining to the tool.

    No offense or disrespect intended, but it never ceases to amaze and amuse me how some people think electrical engineering can be reduced to a few simple quantities and equations. If that were the case, there wouldn't be so many people who flunked out of, or quit, EE and went into physics or some other relatively "easier" discipline.

    You may recall your difficulty in grasping the concept of AC directionality. By the way, did you find the phasor diagram tutorial helpful? (Link)
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  • bikezappa
    bikezappa Posts: 2,463
    edited September 2011
    DK

    You should put a fuse which has essentially no L or C or even R for that matter in the program and predict it's filtering capacity.
  • DarqueKnight
    DarqueKnight Posts: 6,765
    edited September 2011
    bikezappa wrote: »
    DK

    You should put a fuse which has essentially no L or C or even R for that matter in the program and predict it's filtering capacity.

    That's a good suggestion if the software has the capability to model the noise characteristics of conductors and electonic devices.

    Aside from the gross parameters of L, C and R, any physical medium (wire, fuse, transistor, vacuum tube, etc.) that an electrical signal passes through changes (filters) the signal in some way due to the noise characteristics of the medium. Sometimes, the change is detrimental and audible. Thoughtful designers select components that minimize such filtering effects. This contributes to the preservation of signal integrity.

    The engineers at Yamaha Corporation say they tested thousands of power line fuses for use in their Aventege line of receivers (see attached PDF). They might be able to offer some insight if you write to them and ask real nice. Let us know what you find out.
    Proud and loyal citizen of the Digital Domain and Solid State Country!
  • TECHNOKID
    TECHNOKID Posts: 4,298
    edited September 2011
    bikezappa wrote: »
    I have been reading up on electronic circuits and they become very complex mathematically if multiple components are added.
    If you want a free electronic simulator that is very easy to use
    1. Google "LTSPICE" and download it free

    http://www.linear.com/designtools/software/
    2. Go to Google videos and search "LTSPICE TUTORIAL"

    youtube has some nice examples of this tool.

    http://www.youtube.com/watch?v=GmzfJa2GS7c&feature=relmfu

    and there is a three part tutorial that you can follow and within 10 minutes be able to analyze a circuit.

    Of course then you can bread board the circuit to verify the results

    The simulator is just amazing.
    Thanks bikezappa! This guy has tons of tutorial video and he is highly addictive (I add to stop or I would spend the night here at the office).
    DARE TO SOAR:
    “Your attitude, almost always determine your altitude in life” ;)
  • inspiredsports
    inspiredsports Posts: 5,502
    edited September 2011
    bikezappa wrote: »
    I have been reading up on electronic circuits and they become very complex mathematically if multiple components are added.
    If you want a free electronic simulator that is very easy to use
    1. Google "LTSPICE" and download it free

    http://www.linear.com/designtools/software/

    2. Go to Google videos and search "LTSPICE TUTORIAL"

    youtube has some nice examples of this tool.

    http://www.youtube.com/watch?v=GmzfJa2GS7c&feature=relmfu

    and there is a three part tutorial that you can follow and within 10 minutes be able to analyze a circuit.

    Of course then you can bread board the circuit to verify the results

    The simulator is just amazing.

    So how did you happen to find this? What were you looking for?
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  • skrol
    skrol Posts: 3,437
    edited September 2011
    That's a good suggestion if the software has the capability to model the noise characteristics of conductors and electonic devices.

    Aside from the gross parameters of L, C and R, any physical medium (wire, fuse, transistor, vacuum tube, etc.) that an electrical signal passes through changes (filters) the signal in some way due to the noise characteristics of the medium. Sometimes, the change is detrimental and audible. Thoughtful designers select components that minimize such filtering effects. This contributes to the preservation of signal integrity.

    The engineers at Yamaha Corporation say they tested thousands of power line fuses for use in their Aventege line of receivers (see attached PDF). They might be able to offer some insight if you write to them and ask real nice. Let us know what you find out.

    That is correct. These programs will only model a conductor as a connection made between two points. If you need that kind of detail, you create a line model adding inductors, capacitors and resistance to your circuit to simulate the wire. That is assuming you know what values to use. We do this fairly often various components where I work.
    Stan

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  • TECHNOKID
    TECHNOKID Posts: 4,298
    edited September 2011
    Posts 10, 11, 12 reported!
    DARE TO SOAR:
    “Your attitude, almost always determine your altitude in life” ;)