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Tuesday, March 5, 2019

New Field Coil Power Supply

Hi!

Just finished a new field coil supply.




This time in landscape style.




Compared to my previous FC PSUs which were in portrait style, this one contains a single power supply only. It is meant to power two field coils in series.




The output is ecntered at 20V / 2A and can be adjusted in 9 steps of roughly 5%




Above the setting with 5% below center. Next 5% above.




Adjustment is in discrete steps via the two switch banks which select different taps of the power transformer.  The supply is purely passive with 3 chokes in a LCLCL arrangement for very cleanly filtered output.




Above a setting close to maximum.

A Feld coil supply for purists who prefer no solid state regulation yet very clean and adjustable output.


Best regards

Thomas



3 comments:

  1. Hi Thomas!

    Is this chassis already full or would there be enough space for another FC line? Maybe heat-up play also a role.

    br!
    Bernd

    ReplyDelete
    Replies
    1. Hi, depends on the current and voltage and if the filter chain can be reduced to 2 chokes.

      Thomas

      Delete
  2. The Design (Optics) looks very 70’s! Schick!

    Gruß,
    Joachim

    ReplyDelete