Jump to content
 

Crosland

Members
 View Profile  See their activity

  • Posts

    2,848

  • Joined

  • Last visited

 Content Type 

Everything posted by Crosland

  1. Crosland
    Try telling that to any electronics engineer! Virtually any chip worth buying can be used for coreless motors these days. All it needs is a high frequency PWM, usually 15KHz or more. Andrew Crosland
  2. Crosland
    This is a significant issue. In simple terms, the lack of an iron core means the heat in the armature windings has nowhere to go. Andrew Crosland
  3. Crosland
    It can be, depends on the details of the controller I'd give it a try in that case. Andrew Crosland
  4. Crosland
    Be aware that this has a PWM output. It may not suit all motors and I wouldn't use it with a coreless motor without knowing the frequency. Andrew Crosland
  5. Crosland
    The "maximum current which can be SUSTAINED WITHOUT TRIPPING" is just the normal operating limit of the booster. A "short circuit" is a fault and should *always* cause the booster or controller to trip. Andrew Crosland
  6. Crosland
    That's fine. The system is reapplying power but then shutting down again because the short is still present. If the short is cleared then the system will come back up normally. Otherwise every momentary short would result in a complete shutdown requireing the power to be re-applied manually. Andrew Crosland
  7. Crosland
    DCC decoders use PWM drive. Almost all modern ones use a high (inaudible) frequency and it works fine with ordinary motors. It is *required* for coreless motors which can very easily be damaged by low frequenct PWM. Andrew Crosland
  8. Crosland
    Yes:-) A relco gives out a high frequency, high voltage limited to a very low current when the normal DC is interrupted by dirt. The idea is that the high voltage breaks down the dirt, or ionises the air, or something like that, and allows the DC to flow again. Andrew Crosland
  9. Crosland
    No, they are very different in all respects (voltage, current, frequency). The fact that DCC is AC has nothing to do with track cleanliness (or not). That's far more relevant. Decoder features can also help. Zimo decoders, with the capacitor backup supply, can be set to only stop on a section of track where there is good reception. A slow moving DC loco can stop on dirty track and then cannot be started without the hand of god. Andrew Crosland
  10. Crosland
    If they are what I think they are then start at this page http://www.rapidonline.com/Cables-Connectors/Connectors-Terminal-Blocks and look at the pluggable types. You need to know whether you want metric (e.g. 5mm) or imperial equivalent (e.g 5.08mm) pitch. Andrew Crosland
×
×
  • Create New...