Help - Solenoid Circuit

Discussion in 'The Projects Forum' started by Daniel - RoboNoob, May 21, 2009.

  1. Daniel - RoboNoob

    Thread Starter Member

    May 21, 2009
    Hey Everyone, first post here - just let me know if I'm breaking any rules or conventions...

    Goal: use push type solenoid (specs in link; duty cycle 10%, awg 30) to hit a golf ball at speeds up to 10 m/s.

    Other relevant information:
    -7-14 V battery (its not picked out yet)
    -The ball needs to have 4 J of energy for maximum speed (thus the solenoid plunger must deliver 4J very quickly).
    -when the kick command is given, the plunger should hit the ball asap (wait time should be minimized)
    Ideas: I can use a DC-DC converter to step up the voltage (seems less than ideal...) or possibly I can use capacitors, keep them charged to the desired voltages and then use a switch to turn on the kicker.

    Problems: I'm terrible at actually designing circuits/just lost when it comes to most of these parts - it'll be my first time working/learning about solenoids and my first using capacitors out of class.

    Thanks a lot everyone!
  2. bertus


    Apr 5, 2008
  3. Bernard


    Aug 7, 2008
    Great refference bertus, wish I had red it earlier. For an example of solenoid driving a golf-ball try:
    You should be able to calc. energy delivered to ball from ballistic pendulem. Too long ago to remember how[graduated 1950 ] A short high current burst seems best, cap discharge as you suggested.
  4. Daniel - RoboNoob

    Thread Starter Member

    May 21, 2009
    Hey guys, sorry for the long response time - long weekend put me out of commission for a while. Thanks a lot for the help and I'll post back after me and my buddies read the sites thoroughly.