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:
May. 19, 2009
Filed:
Feb. 09, 2006
Daniel Moser, Stuttgart, DE;
Helmut Moser, Heilbronn, DE;
Daniel Moser, Stuttgart, DE;
Helmut Moser, Heilbronn, DE;
ATMEL Germany GmbH, Heilbronn, DE;
Abstract
A circuit arrangement is provided for a power supply to a transponder including an antenna resonant circuit and a downstream rectifier circuit for receiving and for rectifying an electromagnetic signal, a charging capacitor connected downstream on the output side of the rectifier circuit to provide a first supply voltage, with a tuning circuit for tuning the antenna resonant circuit to its resonance frequency, and with an auxiliary voltage source, which is designed to provide a second supply voltage, lower than the first supply voltage, for supplying the tuning circuit. A method is also provided for supplying power to a transponder with a first supply voltage, as well as a transponder having a circuit arrangement for a power supply.