rapid DC current reversing

Discussion in 'The Projects Forum' started by doug leese, Feb 19, 2011.

  1. doug leese

    Thread Starter New Member

    Feb 19, 2011
    1
    0
    Hello, I really need a way to reverse the polarity of a solenoid, changing the current seems like the best way...but doing this rapidly, with control is the objective, (rapid means 50 to 150 time per second) therefore making "North" into "South"
    Thank you ahead, to ANYONE smart enough to figure this out, Sincerely, D....
     
  2. blueroomelectronics

    AAC Fanatic!

    Jul 22, 2007
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    98
    How large is the solenoid?
     
  3. hgmjr

    Moderator

    Jan 28, 2005
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    Even better, can you provide a manufacturer's part number for your solenoid?

    hgmjr
     
  4. SgtWookie

    Expert

    Jul 17, 2007
    22,182
    1,728
    Without knowing what solenoid you're dealing with, I'll suggest that an H-bridge with a chopper driver (to control current) will be required, and the driving voltage will likely have to be at least several times what the solenoid is rated for.

    Along with the solenoid manufacturer and part number, it would be very helpful to know what your intended application is. It may be far less complex to do something like use a motor with an elliptical cam, or offset crank pin.
     
  5. KMoffett

    AAC Fanatic!

    Dec 19, 2007
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    doug,
    Reversing the polarity of the standard solenoid will not change the direction of motion from push to pull...if that's what you are trying to do. Either polarity will pull the core.
    Ken
     
  6. bribri

    Member

    Feb 20, 2011
    133
    5
    so you want to make some kind of 'alternating current'?
     
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