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  1. Lewish

    Intro Matlab for Engineers

    And what is wrong with working the examples in the "Learning Matlab" that comes with the product?
  2. Lewish

    fast switching emitter and detector

    Why does it need to be ultraviolet?
  3. Lewish

    DC Motor Modeling

    The SimPowerBlockset has several working models for DC motors.
  4. Lewish

    Gas Turbine Governors

    Did you look at what is available in the SimPowerBlockset? I don't know if what you want is there or not, but it is a good place to start.
  5. Lewish

    Linux Distributions

    Well, you can now forget Caldera. They bought SCO/Unix and are cancelling their Linux distribution. I am currently running 2 servers on Redhat 8.
  6. Lewish

    sample time and loops

    Unit Delay will not do that for you. Input ordering will.
  7. Lewish

    Need a 0 to 5VDC Analog Isolation Circuit

    You ain't gonna get there that way with 4% accuracy. Use the optocouler for isolation. You can get them all the way up to 2500volts iso quite cheaply. Then use a V-to-F on the one LED side and an F-to-V on the other side. You can pretty readily get down to 1% accuracy.
  8. Lewish

    simulation time

    Why would you want to do that?
  9. Lewish

    How to Export Scope Diagram?

    OR, a faster easier way, is to use a screen capture utility, and capture a picture of the Scope with its data, and paste that into word as a picture object.
  10. Lewish

    How to Export Scope Diagram?

    Ok, I will give you the first step. Use a "To Workspace" block to get the data to a variable that is globally visible. Now, save only the waveform part of that variable to a new variable for export to word.
  11. Lewish

    Gennum chipset. Anyone used these? HDTV equaliser, cable driver.

    I have had good experiences with Gennum chips. They are a little known company with good products. I haven't used the ones you are talking about, but give their apps guy a call and ask him to tell of some customers using those chips.
  12. Lewish

    3-phase converter

    Take a look at this website... http://home.earthlink.net/~ojmsmith/indexd.html You can get a copy of his patents and figure out what he is doing. It is very simple and very elegant. Very worth considering. Let us know what you decide on.
  13. Lewish

    MatLab Image Processing Help

    And you have how much budget to pay for this?
  14. Lewish

    How to Build a DSP Board

    Why not subscribe to TI's DSP magazine "Embedded Edge"? You might find what you want it there.
  15. Lewish

    Need 2>1 analog mux for higher-than-VCC signals

    You might look at Supertex for high-voltage muxes.
  16. Lewish

    Thickness of various Cu weight on PCBs

    One ounce copper means that one square foot of a given thickness of copper will weigh one ounce. Now if you look up the volumetric weight of copper and work backwards, you will find that one ounce of copper in a sheet one foot square is about 0.00135 inches thick. The proof is left to the student.
  17. Lewish

    Matlab compiler issue

    Well, library pathing is always a problem when trying to compile a standalone program. I think you may also have a problem with the Guide interfaces. Why not break you program up into modules, and see which ones compile. That might help locate some of the compiler errors.
  18. Lewish

    Micro Hydro Power Plants

    Take a visit to this website..... http://www.hcipub.com/ I got a lot of the technical information for my project from here. Also, get a subscription to Power magazine (McGraw-Hill). Another good source of information on the business of power generation. Lewis General Manager The Onion...
  19. Lewish

    CAD software distinctions

    To dpc, Solidworks is less money, has more capabilities and can directly import Pro-E files. Pro-Enigneer is now defunct, or so I have heard. Autocad's 3D capability is still a cluge at best. I have an ME friend who has used Microstation for many years and is changing to Solidworks. I was...
  20. Lewish

    CAD software distinctions

    dhwilliams, your reply sounds like a hobbist answer. I assumed from the packages listed, that the poster was looking for products to use in a company environment. I would really like to see you do the 6 layer board I just had fabricated using something like PaintShop Pro. Good Luck!

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