Patent · US Active

Method for operating an electrical treatment device and electrical treatment device

US11651911B2 · kind B2 · utility

0Cited by

4References

14Claims

0Family size

Assignee

Andreas Stihl AG & Co. KG · DE

Inventors

Tobias Schmidt · Munich, DE
Kay-Steffen Gurr · Heilbronn, DE
Marc Saemann · Geislingen, DE
Rudolf Saemann · Balingen, DE

Key dates

Filing date	Sep 8, 2020
Grant date	May 16, 2023
Priority date	—
Expiry date	Sep 17, 2041

Classification

Technology area (CPC H)Electricity
CPC primaryH02P29/40
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A method operates an electrical treatment device having a user-operable operating switch, and a motor electronics system with a motor control and an electric drive motor. The switch electrically connects to a drive voltage source and the motor electronics system. The motor electronics system electrically connects to the drive motor on an output side via the motor control. The method monitors whether an input voltage at the motor electronics system meets a closed criterion or an open criterion, wherein the closed criterion is characteristic of a closed switching state of the operating switch, and wherein the open criterion is characteristic of an open switching state of the operating switch, and when the open criterion is met, operates the motor control in a state from an open state set that includes a voltage control state for limiting an increase in the input voltage caused by the running-down electric drive motor.

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