Title:
DRIVING CIRCUIT
Document Type and Number:
WIPO Patent Application WO2000011788
Kind Code:
A3
Abstract:
The invention relates to a driving circuit comprising a driver control circuit, a first and a second driving transistor and a current limiting device. In order to limit the current flowing through the driving transistor, said current limiting device controls the voltage at the gate of said first driving transistor. A control input of the current limiting device is used to adjust the current-limitation application point to the load to be controlled by a negative feedback. According to a second embodiment, a driving circuit having one of its two transistors designed as a MOSFET and the other one as a bipolar transistor is produced in such a way that diodes of the two driving transistors block the switched-off supply voltage or transmit the voltage according to a voltage applied on the output of said driving circuit.
Inventors:
WERKER HEINZ (DE)
KILLAT DIRK (DE)
HAASE ORDWIN (DE)
GROEPL MARTIN (DE)
KILLAT DIRK (DE)
HAASE ORDWIN (DE)
GROEPL MARTIN (DE)
Application Number:
PCT/DE1999/002416
Publication Date:
August 10, 2000
Filing Date:
August 02, 1999
Export Citation:
Assignee:
SIEMENS AG (DE)
WERKER HEINZ (DE)
KILLAT DIRK (DE)
HAASE ORDWIN (DE)
GROEPL MARTIN (DE)
WERKER HEINZ (DE)
KILLAT DIRK (DE)
HAASE ORDWIN (DE)
GROEPL MARTIN (DE)
International Classes:
H03K19/003; H03K19/0175; H03K19/0944; (IPC1-7): H03K19/003; H03K17/082; H03K19/0944; H03K19/0175
Foreign References:
| EP0332077A2 | 1989-09-13 | |||
| US5362998A | 1994-11-08 | |||
| EP0427557A1 | 1991-05-15 | |||
| US5541799A | 1996-07-30 | |||
| EP0529118A1 | 1993-03-03 | |||
| US5363063A | 1994-11-08 |
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