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

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   Message 7,046 of 7,706   
   Andrew Gabriel to James Wilkinson Sword   
   Re: Why are motors not current limited?   
   21 Apr 18 16:55:20   
   
   XPost: uk.d-i-y, alt.home.repair   
   From: andrew@cucumber.demon.co.uk   
      
   In article ,   
   	"James Wilkinson Sword"  writes:   
   > 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?   
      
   You can buy professional power tools with that sort of protection,   
   or you can buy much cheaper DIY tools without it. My Metabo SDS   
   drill has it, but it cost well over £300.   
      
   > I assume something like this must be done on electric cars, or instead of   
   stalling the engine, you'd wreck the motor.   
      
   Vastly more expensive power controller than the light dimmer used   
   as a speed control in DIY power tools.   
      
   --   
   Andrew Gabriel   
   [email address is not usable -- followup in the newsgroup]   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)   

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