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:
May. 30, 2000
Filed:
Mar. 06, 1998
Applicant:
Inventors:
Assignee:
Hilti Aktiengesellschaft, Schaan, LI;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02M / ;
U.S. Cl.
CPC ...
363132 ; 363 60 ;
Abstract
A method of reducing feedbacks on a temporary flow of current drawn from a network, during an operation of an inductive load, by active filtering of harmonics of a network fundamental component with a booster converter (6) and according to which the function of a necessary choke of the booster converter is taken up, at least partially, by the inductive load; and a booster converter for effecting the method, in which the function of the booster converter is integrated into the inductive load driving bridge circuit and into the motor, with at least one motor winding being so connected that it replaces, at least partially, the conventional booster converter choke.