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  1. Arouse1973

    Very Basic circuit but I am struggling

    Yes to the first question. And nothing will happen if S shorts to common. Adam
  2. Arouse1973

    PWM solenoid use

    This one should work for U2. http://www.mouser.com/ProductDetail/Texas-Instruments/TLV3701IP/?qs=m96fseALk3UPhyz0hM3ZTA%3D%3D Thanks Adam
  3. Arouse1973

    PWM solenoid use

    I have just noticed the original comparator LT1716 is not push pull. I checked the diagram and was convinced it was. So don't order this part. I will look for another part and let you know. Thanks Adam
  4. Arouse1973

    PWM solenoid use

    Good luck, get any probs give me a shout. I might build this along side you so I can iron out any problems. Adam
  5. Arouse1973

    Very Basic circuit but I am struggling

    Here is something that might do the trick. It uses a simple comparator for T and S short (RED LED) and the other two LEDs are just powered from a resistor R1. This was the simplest I could come up with given the time I had. The only other thing is if all three are shorted the RED led doesn't...
  6. Arouse1973

    PWM solenoid use

    Here is a my attempt at a circuit that can output 25% 50% and 75% of 3.41 ms (1 / 292.5 Hz). Make R4 and R5 adjustable for calibration. R8 is what sets the PWM, use 3 variable 2K2 resistors and switch in the different calibrated values for 25% 50% and 75% using a separate switch for each one...
  7. Arouse1973

    Very Basic circuit but I am struggling

    Hi Gavin. I guess you will have a small battery inside the test box, like a PP3? Adam
  8. Arouse1973

    AC circuit (120v single phase) smooth to a10 sec. average voltage sine wave

    Well I am lost, what the bloody hell do you want to do . You said easier than a surge suppressor? You need to draw something I think. And explain what you want to do. Adam
  9. Arouse1973

    AC circuit (120v single phase) smooth to a10 sec. average voltage sine wave

    Is this the sort of thing you are after? Here is a simple circuit showing a noisy sine wave and a sort of filtered version producing 3 Amps. Adam
  10. Arouse1973

    AC circuit (120v single phase) smooth to a10 sec. average voltage sine wave

    An inductor will take out some of the harmonics you are after. Do you have any information on the sort of noise you want to filter out? Adam
  11. Arouse1973

    AC circuit (120v single phase) smooth to a10 sec. average voltage sine wave

    Bob your just too good :)
  12. Arouse1973

    Help with an triggered external lightsource circuit

    Diode can be 1N4001 and base resistor 1K (1/4 W) and pull down 10K (1/4 W). Your transistor is a bit over kill BTW. Thanks Adam
  13. Arouse1973

    PWM solenoid use

    Hi Randy A few questions from me which will decide which way to go. 1) When the unit is first powered up, what should it do? Nothing until a switch is pressed or give out PWM for say 1st gear? 2) If you were to use on/off switches what would you want to happen if you forgot to switch one...
  14. Arouse1973

    simple circuit drawing software

    How do you create a net list from paint? I must admit the circuit diagrams are nice and clean looking. Adam
  15. Arouse1973

    AC circuit (120v single phase) smooth to a10 sec. average voltage sine wave

    I think I understand what he means now. I suppose it depends on your interpretation of the word smooth. For me to smooth something is to make it flat. Like a smoothing capacitor in a power supply. What the OP wants to do is to produce a clean sine wave from one with distortion (noise). That's...
  16. Arouse1973

    Component ID

    Thanks Dave, never seen one like that before. You learn things everyday. Adam
  17. Arouse1973

    PWM solenoid use

    Found on rubbish dump :)
  18. Arouse1973

    Component ID

    Glad you love it. I spend most of my time on here.
  19. Arouse1973

    Component ID

    84, hang on I was only 11 lol.
  20. Arouse1973

    Component ID

    Oh math......... brings me out in a rash lol.
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