Patent · US Expired

Method for suppressing current peaks during commutation of a brushless direct-current motor

US5361021A · kind A · utility

6Cited by

17References

10Claims

0Family size

Assignee

Heidelberger Druckmaschinen AG · DE

Inventors

Helmut Meyer · Hilden, DE
Kai Albrecht · Heidelberg, DE
Jurgen Seeberger · Baunach, DE

Key dates

Filing date	Jul 7, 1992
Grant date	Nov 1, 1994
Priority date	—
Expiry date	Jul 7, 2012

Classification

Technology area (CPC H)Electricity
CPC primaryH02P6/28
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A method for suppressing current peaks occurring during commutation in phase windings of a brushless direct-current motor, including supplying the phase windings via an indirect direct-current converter with rectangular current having an actual value measured exclusively in a direct-current link of the converter (single-current measurement), and delaying current buildup in the phase winding by a time period t.sub.v with respect to a current decay.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.