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Electric power tools

  • US 20100163266A1
  • Filed: 12/24/2009
  • Published: 07/01/2010
  • Est. Priority Date: 12/26/2008
  • Status: Abandoned Application
First Claim
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1. An electric power tool, comprising:

  • a housing body part capable of housing a brushless DC motor as a driving source;

    a grip part formed to protrude from a lateral part of the housing body part;

    a switch part provided in such a position that allows a user to engage a finger of the user with the switch part while the user holds the grip part;

    a battery capable of supplying a power to the blushless DC motor;

    a three-phase bridge circuit configured to control the blushless DC motor and including switching devices; and

    a capacitor connected in parallel with the three-phase bridge circuit;

    wherein the three-phase bridge circuit is disposed proximal to the brushless DC motor within the housing body part, and the capacitor is disposed at a position proximal to the switch part.

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