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Recent content by totl

  1. T

    RE: single or three phase

    Thanks. Will a step up transformer adjust with the varying input voltage and does a step up also increase the current or just the voltage?
  2. T

    RE: single or three phase

    I forgot to mention this time that the output voltage after rectification will be dc. Is there any advantage to rectifying 3 phase ac as opposed to single phase?
  3. T

    RE: single or three phase

    Now that it's established that I have a 3 phase PM motor, is there a simple, cheap way to boost the output voltage which can possibly be made from spare parts or can be found in existing electronics? I'm trying to stay away from costly curcuits such as boost converters. This project is about...
  4. T

    single or three phase?

    Only 10 amps? Even as 3 phase?
  5. T

    single or three phase?

    I need some help understanding this. As I stated in a previous thread (ac to dc power) I have a permanent magnet motor which is electronically commutated to develop variable speeds. Input voltage is ac. It is then rectified to dc for control and then through an inverter curcuit with 6...
  6. T

    ac to dc power2

    ac to dc power Again I am probably mistating this. There are 3 leads going into the motor. I don't know if they are hot, neutral and ground - this is a variable speed motor if that makes a difference - but when spinning the motor backwards any combination of the three shows ac voltage when I...
  7. T

    ac to dc power2

    ac to dc power The motor is rated as 1 ph, 60hz, 3/4 hp, 120/240 v @9.6/6.8 amps, 0-1400rpm
  8. T

    ac to dc power2

    ac to dc power what is meant by 1000uf and 200wv which I see on what I believe are capacitors?
  9. T

    ac to dc power2

    ac to dc power sorry, I'm not familiar with this yet. Forum challenged.
  10. T

    ac to dc power2

    ac to dc power yes it was an ac pm motor thread. nothing objectionable in it. how do I contact a moderator?
  11. T

    ac to dc power2

    ac to dc power I'm not sure what happened to my initial thread. I was posting a reply and hit quick reply and I don't see the thread in this forum any more. Any ideas?
  12. T

    ac to dc power2

    So a capacitor doesn't put a load on the source but stores energy as a battery? Is any other curcuitry necessary to utilize this stored dc power and can the amps or voltage output be increased or at least consistent? I have looked at dc - dc boost converters and they look promising but I don't...
  13. T

    ac to dc power2

    ac to dc power maybe I'm not stating correctly. The motor I have is a permanent magnet ac motor which I am using as an alternator. It has 3 legs coming from it which I have connected to a 3 phase rectifier to obtain dc power which I need. This motor has a squirrel cage fixed to it which when...
  14. T

    ac to dc power2

    ac to dc power very unskilled in electronics but a fast learner. I have a PM AC motor that in free spin registers 5-150 volts in 3 phase. I've switched to DC with a 3 phase rectifier but under a load such as checking amp draw the voltage reduces dramatically as the motor slows down. Looking...
  15. T

    ac to dc power2

    very unskilled in electronics but a fast learner. I have a PM AC motor that in free spin registers 5-150 volts in 3 phase. I've switched to DC with a 3 phase rectifier but under a load such as checking amp draw the voltage reduces dramatically as the motor slows down. Looking for a solution to...

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