Recent content by HgInNY

  1. H

    Comparator for anemometer

    It works great! It is all soldered up on a PCB now and taking in wind data. From everything I can tell it is functioning perfectly. Thanks for your help. A couple last questions though: I didn't put the capacitor in because they didn't have one small enough at the radio shack in town. How...
  2. H

    Comparator for anemometer

    Okay awesome I'll breadboard it after lunch. Just a quick question, why did you switch the Rin to phase inverting input?
  3. H

    Comparator for anemometer

    Thanks for your help. I just purchased a Texas Instruments OPA2244 for my op amp. It has a minimum single sided volatage of 2.2V so it should work for what I'm doing. I looked at the spec sheet for my anemometer and is has a 2K output impedance. What would you suggest as an input and feedback...
  4. H

    Comparator for anemometer

    Comparator Hello, Thank you for the replies! Sorry I've been busy with other things so I haven't had a chance to work on this in a few days. I built a circuit similar to yours KrisBlueNZ. Attached is my circuit. I haven't turned the input voltage up because I haven't wired up an output...
  5. H

    Comparator for anemometer

    Hi, Sorry the actual op amp I'm using is NE5532AN in an 8 pin configuration. See the data sheet at http://pdf1.alldatasheet.com/datasheet-pdf/view/17978/PHILIPS/NE5532AN.html Output is conected to pin 1 with the branching resistor going to ground. Pin 2 is attached straight to my 15mV supply...
  6. H

    Comparator for anemometer

    Hello, This is my first time building a circuit and I'm having trouble getting it to perform the way I had hoped. I have an anemometer to measure wind speed that puts out an AC sine wave from 0 up to 8V athough I don't really anticipate getting 8V unless there is a hurricane. What I want to...
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