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Subject: 
Re: Motors comparison page updated
Newsgroups: 
lugnet.technic, lugnet.robotics
Followup-To: 
lugnet.robotics, lugnet.org.us.smart
Date: 
Wed, 12 Jan 2011 20:40:44 GMT
Viewed: 
5727 times
  
In lugnet.announce, Philippe Hurbain wrote:

My motors comparison page now includes tests of the E-motor...

Thank you! Surprising that with as easy as it is to backdrive, that the
efficiency is as low as it is.

Out of (not idle) curiosity, is it possible to drive even more current-hungry
devices safely from the NXT? I need a way to drive a 120V AC, 15 amp device
under NXT control (I need to be able to cycle it on/off rapidly with a variable
duty cycle, to control average power output).

--
Brian Davis



Message has 1 Reply:
  Re: Motors comparison page updated
 
Hi Brian, (...) I was surprised too. I suspect a relatively high internal resistance of the windings, rather than mechanical friction, as the source of losses. No, (shame on me!) I didn't checked yet with an ohmmeter. (...) This is clearly outside (...) (14 years ago, 13-Jan-11, to lugnet.robotics, lugnet.org.us.smart)

Message is in Reply To:
  Motors comparison page updated
 
My (URL) motors comparison page> now includes tests of the E-motor from (URL) Energy Add-On Set (9688)>. (URL) Enjoy! (URL) Philo> (14 years ago, 12-Jan-11, to lugnet.announce, lugnet.technic, lugnet.robotics, FTX) ! 

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