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:
Jun. 30, 2009
Filed:
Oct. 27, 2005
Reinhard Hoffmann, Erlangen, DE;
Jörg Lehmpfuhl, Erlangen, DE;
Volker Schmitt, Erlangen, DE;
Wolfgang Spaeth, Zirndorf, DE;
Reinhard Hoffmann, Erlangen, DE;
Jörg Lehmpfuhl, Erlangen, DE;
Volker Schmitt, Erlangen, DE;
Wolfgang Spaeth, Zirndorf, DE;
Siemens Aktiengesellschaft, Munich, DE;
Abstract
A circuit device is disclosed which is used to increase useable motor voltage in a long stator drive. Further, suitable methods for operating a magnetically levitated vehicle provided with the circuit device are also disclosed. In one embodiment of the present invention, the stator section of the long stator drive is connected to the energy supply line on two connection points by way of a first and a second switch. A third switch is located between both connection points arranged on the energy supply line. Both of the stator section connections are connected to the ground potential by way of a fourth and a fifth switch. In one embodiment, in order to accelerate the magnetically levitated vehicle, the first and the second switches are closed and all other switches are opened. The stator section is cross-flown in a direct manner by current in the energy supply line.