Patent · US Active

Planar drive system, method for operating a planar drive system, and stator for driving a rotor

US12212191B2 · kind B2 · utility

0Cited by

2References

19Claims

0Family size

Assignee

Beckhoff Automation GmbH · DE

Inventors

Lukas Bentfeld · Delbrück, DE
Rolf Brinkmann · Bad Salzuflen, DE
Patrick Jebramcik · Gütersloh, DE
Tim Kaulmann · Paderborn, DE

Key dates

Filing date	Aug 12, 2022
Grant date	Jan 28, 2025
Priority date	—
Expiry date	Apr 5, 2043

Classification

Technology area (CPC H)Electricity
CPC primaryH02K2201/18
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A planar drive system comprises a stator and a rotor. The stator comprises a plurality of stator conductors. The rotor comprises a magnet device comprising at least one rotor magnet. The stator is configured to energize the stator conductors. A magnetic interaction can be produced between energized stator conductors of the stator and the magnet device of the rotor in order to drive the rotor. The stator is configured to carry out the energizing of the stator conductors by a current control based on a pulse-width modulation. Due to the current control, a ripple current in energized stator conductors of the stator and thereby an alternating magnetic field can be generated. The rotor comprises at least one rotor coil in which an alternating voltage can be induced due to the alternating magnetic field.

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