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   alt.electronics      Electronics design, repair, worship, etc      7,706 messages   

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   Message 7,033 of 7,706   
   James Wilkinson Sword to Al Borland   
   Re: Why are motors not current limited?   
   21 Apr 18 13:11:10   
   
   XPost: uk.d-i-y, alt.home.repair   
   From: imvalid@somewear.com   
      
   On Sat, 21 Apr 2018 12:54:04 +0100, Al Borland  wrote:   
      
   > On 4/21/2018 7:35 AM, James Wilkinson Sword wrote:   
   >> How hard can it be to put some kind of electronic limiter on a power tool   
   so if you over-stress it, it doesn't consume enough current to melt the coils?   
   >   
   > The motor is efficiently protected by voltage, current and temperature   
   sensors to prevent overloading.  Stop buying junk and start buying Hiltis.   
   >   
   > https://www.hilti.com/cordless-systems/cordless-drills/r663645   
   #technical-data   
      
   I'm not talking about little cordless drills, I mean mains powered tools of   
   around a kilowatt.  Even if they're cheap, surely these sensors are a fraction   
   of the price of the whole tool, and you'd get so many less warranty returns.   
      
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