Patent · US Active

Method for operating an electric appliance and electric appliance

US9427294B2 · kind B2 · utility

2Cited by

5References

14Claims

0Family size

Assignee

The Braun Corporation · DE

Inventors

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

Key dates

Filing date	Aug 19, 2011
Grant date	Aug 30, 2016
Priority date	—
Expiry date	Apr 18, 2033

Classification

Technology area (CPC H)Electricity
CPC primaryH02P25/32
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

An electrical appliance with a resonant motor for driving a vibratory component is provided that has a control unit for driving the resonant motor with a predetermined driving frequency and for measuring the motion-induced voltage of the resonant motor and for determining whether the measured voltage value coincides with a predetermined target voltage value or whether the measured voltage value has crossed over the predetermined target value. The control unit measures the motion-induced voltage at a predetermined time of measurement (tm) within a driving cycle.

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