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.

Date of Patent:
Feb. 23, 2010

Filed:

Feb. 21, 2006
Applicants:

Eberhard Drechsler, Dresden, DE;

Thomas Komma, Ottobrunn, DE;

Inventors:

Eberhard Drechsler, Dresden, DE;

Thomas Komma, Ottobrunn, DE;

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H01F 38/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

The invention relates to an energy transmission device having a primary coil for transmitting to a detachable secondary coil electromagnetic energy by induction with the electromagnetic energy being characterized by an energy transmission frequency and sensing component for detecting at least one characteristic variable of a detachable secondary end including the secondary coil. The sensing component is adapted to detect information on the presence of a detachable secondary end in an especially reliable manner. For this purpose, the sensing component couples a measuring voltage having a measuring frequency that is different from the energy transmission frequency into the secondary coil.


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