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Recent content by Pulstar

  1. P

    Bringing V and I in phase

    hello, if it overheats, you should.. i think that this is what we're talking about. by the way, could you explain why you don't have to correct the cos fi when using a triac?
  2. P

    Bringing V and I in phase

    snubberless triac inductive load Why do you say we can't correct the angle between I and V? If it's an inductive load, you should use a cap in paralel. If it's a capacitive load, you should use and inductive load in paralel. of course, it all depends the values of H and F you apply on your...
  3. P

    3 phase 3 wire measurement

    three phase measurements Nice SMS english, though...
  4. P

    PTC1000 and Pic 16f877

    ptc1000 resistance to temperature yes it should work fine. Thank you very much for everything
  5. P

    PTC1000 and Pic 16f877

    pic16f877 a/d converter adjusting range You've got me thinking... How can i make a Auto-Zero Circuit?
  6. P

    PTC1000 and Pic 16f877

    pic voltage divider mesure negative positive Excellent Work VVV. It worked. I only had to change a the value of the R4... but virtually it gave me exactly what i wanted... Thank you so much!
  7. P

    PTC1000 and Pic 16f877

    a/d 16f877a tricks hello, I've simulated your circuit, but the values didn't come quite what i wanted... Is there any circuit diagram that i can use, with somekind of a formula, that i can calculate the Resistors to use in the circuit? thanks for the help
  8. P

    PTC1000 and Pic 16f877

    ptc1000 Hello I'm building a temperature controller based on a PTC1000. The formula for the resistance of the sensor is as follows: R(T) = (700/180*T) + 902,8 I'm trying to calculate a analog curve between 0V and 5V to correspond the temperature -20C to 120C. The Resistance@-20C is 825ohm...

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