Patent ID: 7042249
Filing Date: 2006-05-09
Classification: H03K

Abstract:
1. A method for actuating a transistor having the following steps: (a) a first predetermined positive potential is applied to a first voltage supply node in a latch circuit, the voltage supply node being coupled to a control connection on the transistor; (b) a reference-ground potential is applied to a second voltage supply node in the latch circuit, the second voltage supply node being connected to a source connection on the transistor; (c) the latch circuit is set to a predetermined state, which turns the transistor on or off; (d) the potential at the second voltage supply node is lowered linearly, preferably in ramp form, as far as a predetermined negative potential; and (e) the potential at the first voltage supply node is lowered if the potential difference between the first and second voltage supply nodes exceeds a predetermined threshold value.