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  1. Arouse1973

    Questions

    Lol I wondered if you would pick this up. Shows you read what I write. :) Adam
  2. Arouse1973

    New toys

    The nano looks cool what can you do with it? What language do you use to program these thing in? Is the software free? Adam
  3. Arouse1973

    Questions

    Jumper wire is normally solid core A variable resistor means you can change the resistance by turning an adjuster normally either a shaft or a slot that requires a small screwdriver or a proper POT adjuster tool. An NPN resistor requires a positive voltage between the base and emitter terminal...
  4. Arouse1973

    temperature measurement

    You could if you were interested in small variations but I dont think he wants that. Any amplification will limit your FSD. Adam
  5. Arouse1973

    Cascading dc to dc converter with H bridge

    Yes I just checked and you were asked by Steve . So stop wasting my time and if you want anymore help then listen and do as you are told. Your circuit is not a H Bridge and god knows where you got that circuit from. You have enoyed me and by just changing your thread title did you think you...
  6. Arouse1973

    Cascading dc to dc converter with H bridge

    I have seen this circuit before. You were told to go and look at what a H bridge was I think. Adam
  7. Arouse1973

    temperature measurement

    I dont see how an opamp is going to improve things. The limiting factor is the A to D is it not? Adam
  8. Arouse1973

    Two inputs simultaneously

    Smarty pants :)
  9. Arouse1973

    Is this layout good for a DC-DC converter?

    Any noisy and sensative traces should be run on seperate sides of the PCB at 90 degrees to each other. Adam
  10. Arouse1973

    Cascading dc to dc converter with H bridge

    Show us the whole circuit diagram. We can't answer you without seeing it. Adam
  11. Arouse1973

    how to find resistor value ?

    Oh dear I thought it couldn't get any worse :) Time for me to go Ohm I have spent log enough on here :)
  12. Arouse1973

    Cascading dc to dc converter with H bridge

    Is the DC boost convertor suppose to power up the H-Bridge? If so then just connect the output of the DC to DC to the positive supply rail of the H-Bridge. What is the H-Bridge doing, you haven't said or is it secret MI5 stuff? Also I can't see any feedback, you should have some to control the...
  13. Arouse1973

    Two inputs simultaneously

    Here you go. Adam
  14. Arouse1973

    How a BJT Transistor works (base current version)

    This is really good Steve. When I first started out in electronics, I used the words Not Pointing iN for the arrow head on a NPN and the other one was a PNP. Cheers Adam
  15. Arouse1973

    Two inputs simultaneously

    You could use an AND gate on the output. You can use a logic gate or make it from a two transistors. Do you really need two LEDs? One LED will tell you the output is on. Adam
  16. Arouse1973

    Cascading dc to dc converter with H bridge

    And can you answer the other question and post a schematic? Adam
  17. Arouse1973

    Two inputs simultaneously

    Um and what is the device you are using? Might be helpful to know that first. Adam
  18. Arouse1973

    Cascading dc to dc converter with H bridge

    What do you mean cascade them? Do you mean connect them together? Can you tell us a bit more about your circuit and what it does. Post the schematics you have here also. Adam
  19. Arouse1973

    how to find resistor value ?

    Use the colour chart Harald has supplied, it's really easy. Or tell us the colours. Take a close up picture or them just to be sure. Adam
  20. Arouse1973

    temperature measurement

    I thought the bridge was used to linearize the NTC as their output is exponential. You can also form a voltage divider as Bob has said and place the NTC across one of the resistors. This will also help to linearize the output when the correct values have been chosen. Thanks Adam
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