How to do this control system?

Discussion in 'Homework Help' started by cpleng7, Mar 18, 2009.

  1. cpleng7

    Thread Starter Active Member

    Dec 18, 2008
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    I have 30 solenoids, i would like to on it one by one with the same frequency or difference frequency. but current producing of the solenoid must be 3A or above. Can some one give some suggestion?
     
  2. beenthere

    Retired Moderator

    Apr 20, 2004
    15,815
    282
    Does that mean that you need to control the 30 solenoids individually? What is the operating voltage for each solenoid?
     
  3. Papabravo

    Expert

    Feb 24, 2006
    10,163
    1,796
    1. One Microcontroller
    2. 30 output points with solenoid drivers
    Piece of cake!
     
  4. cpleng7

    Thread Starter Active Member

    Dec 18, 2008
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    if possible can it be 20V 3A.
    i don't know how to use microcontroller can you explain a litter bit detail?
     
  5. mik3

    Senior Member

    Feb 4, 2008
    4,846
    63
    You can use 30 555 astable circuits to determine the frequency of each solenoid and a decade counter to activate each 555 one by one.
     
  6. cpleng7

    Thread Starter Active Member

    Dec 18, 2008
    120
    0
    can you explain clearly this process? can it be simplified the circuit? because i am using the solenoid to create maglev train
     
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