Elektrowerkzeug und Verfahren zum Steuern eines Motors innerhalb eines Elektrowerkzeugs

Details

Veröffentlichungs-Nr.

EP2433757

Aktenzeichen

EP11183160

Anmeldetag

28. September 2011

Veröffentlichung

31. Dezember 2014

Erteilung

31. Dezember 2014

Rechtsraum

EP

IPC

B25F5/00

Abstract

A power tool includes a housing, a brushless DC motor housed inside the housing, a power supply, a control unit, and an input unit such as a trigger switch actuated by a user. The control unit controls the commutation of the motor through a series of power switches coupled to the power supply. The control unit initiates electronic braking of the motor after occurrence of a condition in the input unit, such as trigger release or reduced speed, indicative of the power tool shut-down. A mechanism is provided to power the control unit for a predetermined amount of time after the detection of the condition from the input unit in order to complete the electronic braking of the motor.

Anmelder

Firma

Black & Decker Inc.

Land

🇺🇸 USA

Fachgebiete