Semiconductor circuit, especially for ignition purposes, and the use of the same
US7057240B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 30, 2002 |
| Grant date | Jun 6, 2006 |
| Priority date | — |
| Expiry date | Mar 24, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K2017/0806
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
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 (VA) 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 (VKL′), 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 (VKL) of the first and the second clamp voltages, or the second clamp voltage (VKL′) is provided for clamping the external voltage (VA) 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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.