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. 28, 2005
Filed:
Nov. 28, 2002
Schroder Ralf Gen Berghegger, Glandorf, DE;
Schroder Ralf gen Berghegger, Glandorf, DE;
Friwo Geraetebau GmbH, Ostbevern, DE;
Abstract
The present invention relates to an inductive contactless power transmitter having a primary side including a first inductor (L) on the primary side and an oscillator for producing an alternating signal which is supplied to the inductor (L) on the primary side, and having a secondary side which includes an inductor on the secondary side that can be coupled to the inductor (L) on the primary side, a load (R) which is variable in time, and a detection means () for determining a power demand of the load on the secondary side, the first oscillator being a voltage-controlled oscillator having a frequency that is adjustable in response to the power demand determined by the detection means ().