Patent · US Active

Switch device for an electric motor, control device and steering system

US10461665B2 · kind B2 · utility

0Cited by

1References

16Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Stefan Walz · Freiberg, DE
Andreas Speinle · Elzach, DE
Markus Weber · Solothurn, CH
Sylvia Wiedemann · Ludwigsburg, DE
Panagiotis Kosioris · Neukirchen, DE
Dirk Lamprecht · Waiblingen, DE
Alexander Krautstrunk · Durlangen, DE

Key dates

Filing date	Feb 15, 2017
Grant date	Oct 29, 2019
Priority date	—
Expiry date	Feb 15, 2037

Classification

Technology area (CPC H)Electricity
CPC primaryH03L7/06
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A switch device for an electric motor includes at least one half-bridge having two semiconductor switches to energize at least one phase of the electric motor on demand. The switch device further includes a drive device assigned to the semiconductor switches and configured to actuate the semiconductor switches in accordance with an activation signal. The driver device includes an oscillator to generate an operating clock frequency, an apparatus to receive a synchronization signal, and a device to adjust the operating clock frequency in accordance with the synchronization signal.

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