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 Robotics / 10891
  RE: Questions about unoficial (?) use of electrical LEGO parts
 
A thought: The motor outputs have two 'off' states: free and brake. The free state is when the power lines are unconnected and the motor can spin freely. The brake state shorts the powerlines which causes the motor to resist being rotated. In (...) (25 years ago, 2-Mar-00, to lugnet.robotics)
 
  Power Supply
 
What power supplies work with the RCX? (25 years ago, 2-Mar-00, to lugnet.robotics)
 
  Re: Power Supply
 
(...) I use a 9VDC 500mA AC Adapter with center negative polarity. According to Jonathan Knudsen in his book The Unofficial Guide to LEGO Mindstorms Robots, he states "You can supply power in either polarity, even AC, from 9V to 12V." (25 years ago, 3-Mar-00, to lugnet.robotics)
 
  Re: Power Supply
 
(...) The 'official' supply, is 10V AC, 700mA. The input has a rectification bridge, so will accept AC, or DC in either polarity. The 'coda', is that if your supply can deliver significantly more current than the 'standard' unit, it is possible to (...) (25 years ago, 3-Mar-00, to lugnet.robotics)
 
  Re: Power Supply
 
(...) What's the best fuse rating to use? Dean (25 years ago, 4-Mar-00, to lugnet.robotics)

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