Patent ID: 7196431

Claim:
A device for prompting a controller in a vehicle having a power supply circuit for the controller, to transfer the controller from an idle state into a normal operating state, said device comprising: a prompting means actuatable for switching the power supply through to bring the controller into the normal operating state; wherein the prompting means is connected in series with an impulse generator stage, between power supply lines; the impulse generator stage has a central tap which is connected directly or indirectly with the control input of a first transistor; an output of the first transistor is connected directly or indirectly with a control input of a second transistor that connects the supply power with the controller; and a connection line from an output of the second transistor is fed back to a node in a conductor which connects the central tap and the control input of the first transistor, for self-holding of the through switching state of the second transistor.