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:
Aug. 12, 2003
Filed:
Aug. 15, 2002
Martin Bloch, Gröbenzell, DE;
Esther Vega Ordonez, München, DE;
Infineon Technologies AG, Munich, DE;
Abstract
The object is to discharge a first capacitor from a high voltage to a low voltage. To this end, the one electrode of the first capacitor is linked with the one electrode of a second capacitor via a FET path. The other two electrodes of the two capacitors are connected to reference potential. A voltage source with its internal resistance is connected in parallel to the second capacitor. A discharge path leads from the one electrode of the first capacitor from the paths of two FET and a protective resistor to the reference potential. A current path leads from the one electrode of the second capacitor to the reference potential via the paths of two additional FET. A control unit switches on the discharge path. Once the voltage of the first capacity has decreased to the required lower value, the discharge path is blocked while a holding path is opened.