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Work flow suggestions

Former Member

Hi all,

 

I'm not new to electronics, but new to Eagle. This is a hobby now, not a

profession anymore, and it's been awhile since I've really done any real

design (my career took me into physics/dynamics and away from electronics).

I'm using Eagle mostly to copy public domain circuits, maybe some

modifications, then build them.

 

I also bought B2 Spice. (I've tried a few simple schematics with some

frustration due to inconsistencies with Eagle library names versus the B2

library/model names. But I think that is more for the B2 forums...)

 

That said, I'd love some advice on work flow. Most/all of the circuits

which interest me are analog audio processing types; filters, oscillators,

amplifiers, etc. ending up in a modular synthesizer.

 

That now said, is it easier to build the schematic in Eagle then convert it

to B2 format and just deal with the missing models in B2 Spice? Or, is it

easier to build the circuit in B2 Spice then port it to Eagle? I've not

tried the B2 Spice to Eagle route yet as I'm still just trying to get

through the Eagle manual.

 

Any users of Eagle and B2 Spice out there who are willing to give me their

2 bits of advice?

 

Thanks

 

David

--

Browser access to CadSoft Support Forums at http://www.eaglecentral.ca

 

Parents

  • well..if it's easy to port it to SPICE then you have the advantage that

    if you want to make a board, the schematic is already in EAGLE. that may

    not be such a big advantage if modules are small and easily copied from

    one schematic capture tool to another.

     

    again..i would skip SPICE and just play around with the circuit on a

    breadboard. to check things in SPICE I would just use circuit fragments

    - although maybe your modules are so simple that they are almost circuit

    fragments anyway. Really only useful for frequency domain analysis.

     

    If your oscilloscope has builtin FFT, you can often quickly see circuit

    response by exciting it with white noise. and if you can average the

    spectra ( as opposed to signal) on the scope or computer, you'll get

    decent response curves. if you are making an audio synth, that wng will

    be your first project anyway.

     

    unfortunately, i believe that the best way to get learn about the freq

    domain is to study it. use old books (like from the 60's) that don't

    rely on computers and DSP. learn how to use the s-plane. someday I will

    have time to do this properly, too image

     

Reply

  • well..if it's easy to port it to SPICE then you have the advantage that

    if you want to make a board, the schematic is already in EAGLE. that may

    not be such a big advantage if modules are small and easily copied from

    one schematic capture tool to another.

     

    again..i would skip SPICE and just play around with the circuit on a

    breadboard. to check things in SPICE I would just use circuit fragments

    - although maybe your modules are so simple that they are almost circuit

    fragments anyway. Really only useful for frequency domain analysis.

     

    If your oscilloscope has builtin FFT, you can often quickly see circuit

    response by exciting it with white noise. and if you can average the

    spectra ( as opposed to signal) on the scope or computer, you'll get

    decent response curves. if you are making an audio synth, that wng will

    be your first project anyway.

     

    unfortunately, i believe that the best way to get learn about the freq

    domain is to study it. use old books (like from the 60's) that don't

    rely on computers and DSP. learn how to use the s-plane. someday I will

    have time to do this properly, too image

     

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