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Subject: 
More Power Functions info released
Newsgroups: 
lugnet.technic, lugnet.robotics
Followup-To: 
lugnet.technic
Date: 
Tue, 13 Mar 2007 21:35:03 GMT
Viewed: 
1605 times
  
Some info I can now release, in addition to what I've posted here:
http://www.brickshelf.com/cgi-bin/gallery.cgi?f=226241

The Power Functions large motors
http://www.brickshelf.com/cgi-bin/gallery.cgi?i=2337975 use the same metal motor
inside as the NXT motors.

The motor driver chip in the IR RC receiver
http://www.brickshelf.com/cgi-bin/gallery.cgi?i=2337974 is the same chip as the
NXT motor driver chip.

This all means that the large motors have lots of power (as they are geared a
bit lower than NXT motors), but also that Power Functions motors and NXT motors
are electrically interchangeable, with similar voltage and current
characteristics for a given motor load.  Since an NXT to 9V adapter lead is
available from TLG and there will also be backward compatibility between Power
Functions and the 9V system, it will be possible to connect Power Functions
motors to NXTs and NXT motors to Power Functions receivers.  You will need to
construct your own encoder device if you want feedback when using a PF motor
with an NXT though.

Mark



Message has 1 Reply:
  Re: More Power Functions info released
 
(...) snip... (...) snip... Not to be a stickler, but gearing doesn't increase motor power. Unless the large motor has less internal power loss (reduced friction would be nice) it will have more torque, less speed, and the same power as the NXT (...) (18 years ago, 14-Mar-07, to lugnet.technic)

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