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. 31, 2009
Filed:
Mar. 21, 2007
Rory Dickman, Graz, AT;
Heinrich Trebo, Graz, AT;
Rory Dickman, Graz, AT;
Heinrich Trebo, Graz, AT;
Infineon Technologies AG, Munich, DE;
Abstract
A driver circuit for providing an output signal for switching an electrical load on and off has a field-effect transistor having a gate terminal and an output for providing the output signal to the electrical load, a buffer circuit connected to the gate terminal of the field-effect transistor to impress a charge change current on the gate terminal of the field-effect transistor based on a drive signal, and a comparator having a first input for receiving the gate voltage and a second input for receiving the output signal to determine whether the gate voltage and the output voltage fulfill a predetermined relationship with respect to each other, and to provide the drive signal to the buffer circuit so that the charge change current is changed in magnitude when the predetermined relationship is fulfilled as compared to the charge change current when the predetermined relationship is not fulfilled.