1. Swaysceptile

    How do I combine these two electronic circuits into one schematic (for project)?

    I started the basics of PCB and doing schematics around 6 weeks ago in my Computer Engineering Drafting and Design class. We used EasyEDA online tool to create the SCH and PCB for our assignments/activities. Our project now is to combine the circuits that we have made before into one system so...
  2. Swaysceptile

    How do I combine these circuits?

    We have a project coming up in my Engineering Drafting and Design class and I don't have much idea yet on how to accomplish it. We are tasked to combine different circuits to design one complete device. Then we need to of course make the Schematic (and simulate it), as well as creating the PCB...
  3. Veek

    LTSpice - what programming language does it use and how do directives hang together?

    1. So Vim has vimscript, Emacs uses Lisp - what is LTSpice doing? 2. You can use .step to update a {R} for .meas and calculate MAX/MIN etc - how is the data being passed and how do the various directives influence each other? Note in the schematic, he uses {R} and 'r' and R1 and they are all...
  4. R

    Arduino guitar pedal help

    Hi! I've been working on a school project, that is a guitar pedal (effects) using an arduino board. I've been using the EasyEDA site for designing the schematic. I would like to ask a more skilled/experienced person to go over my design and look for any flaws or mistakes. Any tips about it...
  5. Veek

    Multiple-input controlled sources and Tuinenga SPICE book pg27

    https://www.pspice.com/multiple-input-controlled-sources-and-tuinenga-spice-book-pg27 (briefly how is he getting k8.v2.v3 in the images) He's trying to use POLY(dimension) to model a source using a polynomial to represent it. Form of Poly is k0 + k1x + k2x^2 and so forth so.. how the heck has...
  6. E

    How do I EM-Extract a subcircuit and define a different em/drawing-layer than the original circuit in AWR?

    I have a 4-layer project in AWR/MWOffice and have built a parameterized microstrip inductor schematic (named "spiral") with a "Line Type" of layer1 that I wish to reuse on another schematic as a subcircuit (SUBCKT) on layers 1,2,4. When I place "spiral" as a subcircuit on another schematic...
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