The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 13, 2011
Filed:
May. 03, 2005
Philipp Buhler, Zurich, CH;
Philipp Buhler, Zurich, CH;
Mecos Traxler AG, Winterthur, CH;
Abstract
A magnetic bearing device and a method of operation for such a device are provided. The device comprises a group () of electromagnetic actuators (). Each actuator is electrically connected to an amplifier unit (). The actuators of a first subgroup are connected to a first common node (), while the actuators of a second subgroup are connected to a second common node (). The common nodes () are connected either directly or through means like an additional actuator. Preferably the common nodes () have no additional electrical connection to the amplifier unit. According to a special embodiment of the invention, each subgroup of actuators consists of only one single actuator and the common node has an electrical connection to the amplifier. Thus the device comprises two actuators in a series configuration connected to an H bridge. The common node may be connected to either of two different voltages. The invention enables simplified wiring without increased load requirements for the wires.