Patent · US Active

Method and device for adjusting the frequency of a drive current of an electric motor

US8466638B2 · kind B2 · utility

2Cited by

11References

13Claims

0Family size

Assignee

The Procter & Gamble Company · US

Inventors

Torsten Klemm · Bad Soden, DE
Ingo Vetter · Karben, DE
Uwe Jungnickel · Königstein, DE

Key dates

Filing date	Aug 12, 2010
Grant date	Jun 18, 2013
Priority date	—
Expiry date	Nov 16, 2031

Classification

Technology area (CPC H)Electricity
CPC primaryH02P25/032
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A small electric appliance is described which comprises an oscillation-capable mechanism (4), an electric motor (1) to drive the oscillation-capable mechanism (4), wherein the electric motor (1) can be operated with a drive current (10) at a predetermined frequency (f), and a device (3) for adjusting the frequency (f) of the drive current of the electric motor (1).Furthermore, a method for adjusting the frequency (f) of a drive current (10) of an electric motor is described comprising the following steps of

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