FIELD: machine building.
SUBSTANCE: invention relates to cutting power tools. Disclosed electric power tool comprises a three-phase brushless motor configured to drive a cutting tool, and a motor control device configured to drive three-phase brushless motor with square voltage waves, as well as a load on cutting tool or a temperature detector. Motor control device is able to change a conduction angle depending on signals from detectors between two values, which are equal to or greater than 120 degrees and not more than 180 degrees.
EFFECT: broader technological capabilities of electric tool.
22 cl, 39 dwg
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