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Title:
METHOD AND DEVICE FOR THE ELECTRODYNAMIC BRAKING OF A UNIVERSAL MOTOR
Document Type and Number:
WIPO Patent Application WO/2013/152900
Kind Code:
A3
Abstract:
The invention relates to an improved electrodynamic method for the braking of a universal motor. By means of assigning ignition angles of an electronic semi-conductor switch that short-circuits the armature of the universal motor during the braking operation to rotational speeds, the ignition angle of the semi-conductor switch is adapted to the actual rotational speed by means of determining the rotational speed. As a result, a significant shortening of the braking time and a significant reduction of brush sparking at the armature advantageously occurs, which can advantageously lead to reduced wear and hence a prolonged service life of the universal motor.

Inventors:
WISZNIEWSKI JACEK (DE)
POGORZELSKI KAMIL (DE)
Application Number:
PCT/EP2013/054424
Publication Date:
January 03, 2014
Filing Date:
March 05, 2013
Export Citation:
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Assignee:
BOSCH GMBH ROBERT (DE)
International Classes:
H02P3/18; H02P25/14
Domestic Patent References:
WO2011076827A22011-06-30
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