The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 17, 2021
Filed:
Oct. 23, 2017
Applicant:
Husqvarna Ab, Huskvarna, SE;
Inventor:
Magnus Rosén, Alingsås, SE;
Assignee:
HUSQVARNA AB, Huskvarna, SE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02M 1/44 (2007.01); H01B 9/02 (2006.01); H02M 1/42 (2007.01); H02M 1/12 (2006.01);
U.S. Cl.
CPC ...
H02M 1/44 (2013.01); H01B 9/02 (2013.01); H02M 1/4225 (2013.01); H02M 2001/123 (2013.01);
Abstract
An arrangement () of an electrical power tool for reducing a touch current is disclosed. The arrangement comprises a filter () configured to reduce electrical interference, a voltage booster () configured to rectify and increase an alternating current into a direct current, a motor comprising a motor drive () configured to power the electrical power tool, and a choke impedance () arranged between the voltage booster and the motor drive such that an input of the choke impedance is connected to the voltage booster and an output of the choke impedance is connected to the motor drive.