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  1. Arouse1973

    Effect of parasit capacitor at the input of my digital circuit

    Do you need a pull up resistor on the input. A better circuit diagram would be more helpful for us. Adam
  2. Arouse1973

    When is 1 watt not 1 watt?

    The way I looked at it was a bit different. I thought the 4Rs are going to be the limiting factor as they are going to draw more current and thus generate the 1W first. So I just worked from there, then your fixed with that voltage so the 6R just dissipates the x amount of power as a result of...
  3. Arouse1973

    When is 1 watt not 1 watt?

    Ah just done that one. Look at the 4R and find out how much current can go through it to produce 1W this will be the same for the other 4R also. Work out the voltage required for this current and the use this to work out the current in the 6R and then the wattage. Then add them all together. Adam
  4. Arouse1973

    DC2132A

    Hi John Yeah looks good, the brass bezels are for banana plugs your right. I ordered it from Arrow UK one of the reps I know is trying to get me one. Adam
  5. Arouse1973

    Good evening all. I have just signed up.

    Hello Daniel Adam
  6. Arouse1973

    How to connect ESD?

    Yes Dave. So if the unit is buried inside an enclosure and no one will be touching it then the risk is small. Adam
  7. Arouse1973

    Capacitance between two wires

    Here is an example I have done for a 4 m pair of wires 45 mm apart with a radius of 1.5 mm. Hope this helps Adam
  8. Arouse1973

    Fine temperature control (Triac + temperature sensor)

    Here is what Tina can do. Although this can be done in LT Spice it's a bit more intuitive in Tina. I selected a variable for the 100K and made it step in value 5 times from 1K to 100K. VF1 is the output plotted against the input waveform.
  9. Arouse1973

    Fine temperature control (Triac + temperature sensor)

    Yeah it's a very good package, I changed because I wanted something better for producing documents. Adam
  10. Arouse1973

    DC2132A

    I saw this in the latest LT Journal and I have requested a FOC sample. I thought it might be something you guys are interested in. LT are very good for free development PCBs, if you say you are interested in having a look at their products. Some of you might know a rep who could get one for you...
  11. Arouse1973

    Fine temperature control (Triac + temperature sensor)

    To add a power source go to components, it's the AND gate symbol on the tool bar at the top. It called voltage. I have used Tina Ti it's free but limited in features. Adam
  12. Arouse1973

    Fine temperature control (Triac + temperature sensor)

    What issues are you having? Both myself and Kris have used it a fair amount. But Harald is the resident boffin I do believe. Adam
  13. Arouse1973

    How to connect ESD?

    Where did you get this circuit from, is it what the manufacture recommends? It's just a tilt switch right? Adam
  14. Arouse1973

    How to connect ESD?

    Why do you think it needs protecting from ESD? Is this part going to be touched by anyone? Adam
  15. Arouse1973

    How to connect ESD?

    Hello What is the sensor please? Adam
  16. Arouse1973

    FunFactory Yooo battery problem

    My advice would be to replace the battery with the same type and capacity. I wouldn't mess around with lithium batteries unless you know how they are assembled. For safety reasons dispose of the battery properly and buy a new battery. Adam
  17. Arouse1973

    Fine temperature control (Triac + temperature sensor)

    What about using the property of a magnet, that it's magnetism decreases with a rise in temperature and increases with a reduction of temperature, you could then sense this and maybe use this information to adjust your angle? Ultimate isolation! Just a thought. Adam
  18. Arouse1973

    A temporary goodbye

    Good Luck, all the best. Adam
  19. Arouse1973

    battery usage

    FYI some UPS run from lithium batteries which I asked what battery type it was. Thanks Adam
  20. Arouse1973

    New To The Forum

    Hi Jon, welcome to electronics point. Adam
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