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:
Jun. 06, 2006
Filed:
Sep. 30, 2002
Rainer Topp, Reutlingen, DE;
Horst Meinders, Reutlingen, DE;
Wolfgang Feiler, Reutlingen, DE;
Robert Bosch GmbH, Stuttgart, DE;
Abstract
A semiconductor circuit configuration is described, in particular for ignition applications, having a semiconductor power switching device which has a first main terminal, a second main terminal and a control terminal; a clamping diode device which is switched between the first main terminal and the control terminal for clamping an external voltage (V) which is applied at the first main terminal; the clamping diode device having a first part with a first clamp voltage and a second part with a second clamp voltage (V'), the second part being connected in series with the first part; a controllable semiconductor switching device which is connected in parallel with the first part for controllable bridging of the first part, so that either the sum (V) of the first and the second clamp voltages, or the second clamp voltage (V′) is provided for clamping the external voltage (V) applied at the first main terminal; and a control circuit for controlling the controllable semiconductor switching device as a function of a predetermined operating state of the semiconductor power switching device.