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:
Jan. 07, 2014
Filed:
Feb. 08, 2012
Michael Asam, Sainbach, DE;
Carmelo Fabio Giunta, Munich, DE;
Wolfgang Horchler, Rosenheim, DE;
Markus Winkler, Munich, DE;
Michael Asam, Sainbach, DE;
Carmelo Fabio Giunta, Munich, DE;
Wolfgang Horchler, Rosenheim, DE;
Markus Winkler, Munich, DE;
Infineon Technologies AG, Neubiberg, DE;
Abstract
A circuit for controlling the switching operation of a transistor is described. A gate driver circuit is operably connected to a control electrode of the transistor and is configured to charge and discharge the control electrode to switch the transistor on and off, respectively, in accordance with a control signal. The charging and discharging of the control electrode is done such that the corresponding transitions in the load current and the output voltage are smooth with a defined slope. A controllable switch is connected to the control electrode such that, when the switch closes, the control electrode is quickly discharged via the switch thus quickly switching off the transistor. A control logic circuit is configured to close the controllable switch for switching off the transistor when at least one of a number of conditions holds true.