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:
Mar. 29, 2005
Filed:
Dec. 23, 2003
Harald Panhofer, Graz, AT;
Harald Panhofer, Graz, AT;
Infineon Technologies AG, Munich, DE;
Abstract
A circuit arrangement is provided for actuating a semiconductor switch connected in series with an inductive load. The circuit includes a first input terminal for supplying an input signal which governs whether the semiconductor switch is on or off, a second input terminal for supplying a voltage measurement signal, and an output terminal for providing an actuation signal for the semiconductor switch. Connected between the first input terminal and the output terminal is a driver circuit which, for a given level of the input signal, takes a control signal as a basis for generating an actuation signal having a first or a second signal profile. To generate the control signal, a control signal generation circuit is provided which takes a stipulation by the first input signal as a basis for sensing a value of the voltage measurement signal in order to provide a sample value and generates the control signal on the basis of a comparison between the instantaneous voltage measurement signal, or a signal which is dependent thereon, and a reference value which is dependent on the sample value, or the sample value itself.