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Recent content by rbrougha

  1. rbrougha

    Sequence circuit?

    Thanks!
  2. rbrougha

    Sequence circuit?

    Hi all, I am interested in making a circuit that will, in essence, be like a stepper motor circuit. The difference is there are three coils vs say a standard bipolar stepper with four or two coils. I think this rules out off-the-shelf solutions. Here are the requirements: There are 6...
  3. rbrougha

    Seismic accellerometer power supply question

    Hi, I have just aquired a seismic accelerometer the requires a constant current power source. The spec for the power supply is 15-30VDC 1-6ma constant current. Here is the data sheet on this sensor. http://www.vibrametrics.com/pdfs/1030.pdf I'm guessing that this device works by varying the...
  4. rbrougha

    Step up power transformer and phase conversion

    Thanks for the feedback so far. I am getting my information from a photocopy of a manual for a German made machine that I am thinking of purchasing. I now suspect that this information is wrong since the machine is presently operating in north america. I will request the actual electrical...
  5. rbrougha

    Step up power transformer and phase conversion

    Is it reasonable to connect a 3ph 60 Hz 380V machine to a single phase 220V supply with 100amp capacity? (Deckel CNC universal milling machine model FP4NC ) The specifications I have about this equipment is the spindle power rating 2.0/4.0 kW. Also the total connected load (380V) is listed at...

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