Divider by 60 with JKFlipFlops

Discussion in 'Homework Help' started by chrisbmx15, Dec 12, 2010.

  1. chrisbmx15

    Thread Starter New Member

    Dec 9, 2010
    2
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    So a student in my course told me to go here for some help with
    my Electronics Workbench project. Trying to get a Divider to divide by 60 using JKFlip Flops. I seem to have it working here with the 5 but when I add a 6th everything goes bad. Any advice? Here is what I got so far.
     
  2. tyblu

    Member

    Nov 29, 2010
    199
    16
    A frequency divider? To tell you the truth the schematic is half-hazardly placed, making it difficult to follow the signal flow. Typically one tries to get a left-to-right signal flow in schematics. What is your plan do divide by 60, and what is this schematic supposed to do?
     
  3. Georacer

    Moderator

    Nov 25, 2009
    5,142
    1,266
    The 7476 is a JK-FF. 30 isn't a power of 2 and therefore you can't count it easilly with FFs.
    Why don't you try a Counter IC? Have it count up to 15 and then use that ripple to clock a D-FF.

    Is that clear?
     
  4. JoeJester

    AAC Fanatic!

    Apr 26, 2005
    3,373
    1,159
    Seven j-k flip flops will do a divide by 60.

    on edit ... added block diagram
     
    Last edited: Dec 13, 2010
  5. chrisbmx15

    Thread Starter New Member

    Dec 9, 2010
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    0
    Ok, the Counter IC is something I havent worked with yet but after learning up on it sounds like its a lot simpler then the FF way. Im going to try and work with that and see if I can get it to work. Ill get back
     
  6. JoeJester

    AAC Fanatic!

    Apr 26, 2005
    3,373
    1,159
    The counter is simpler. Is this a class exercise or just build a /60 divider?

    If you haven't learned counters yet, and it's a class exercise, you might have to return to the j-k flip-flop version.
     
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