Circuit arrangement for preventing high current flow during energy-saving mode

摘要

In accordance with one embodiment, a circuit arrangement is provided including a circuit having a first terminal for a first supply potential and a second terminal for a second supply potential, wherein the first terminal is coupled to the first supply potential; a switch, by means of which the second terminal can be coupled to the second supply potential; a voltage source coupled to the second terminal; and a control device designed to open the switch in reaction to receiving a turn-off signal in an operating mode in which the switch is closed, and subsequently to control the voltage source in such a way that it varies the potential of the second terminal in the direction of the first supply potential.

主权项

1. A circuit arrangement comprising:
a circuit having a first terminal for a first supply potential and a second terminal for a second supply potential, wherein the first terminal is coupled to the first supply potential; a switch, by means of which the second terminal can be coupled to the second supply potential; a voltage source coupled to the second terminal; and a control device designed to open the switch in reaction to receiving a turn-off signal in an operating mode in which the switch is closed, and subsequently to control the voltage source in such a way that it varies the potential of the second terminal in the direction of the first supply potential, wherein the first supply potential is a high supply potential and the second supply potential is a low supply potential, wherein the voltage source varies the potential of the second terminal in the direction of the first supply potential by feeding current to the second terminal current in addition to a total current which flows from the first supply potential through the circuit to the second terminal, and wherein the control device controls the voltage source in such a way that the current fed to the second terminal by the voltage source does not exceed an adjustably set maximum value and so that a voltage of the voltage source is increased to a voltage of the first supply potential within a predefined period of time.