Circuit arrangement and method for operating a circuit arrangement

A circuit arrangement comprising:

• an electronic component coupled to at least one common power supply node and configured to provide a first signal having a variation in time that is based on power supply via the at least one common power supply node;
• a detecting circuit coupled to the electronic component, the detecting circuit being configured to detect the first signal and to provide a digital switch array control signal based on the variation in time of the first signal;
• a switch array coupled between the at least one common power supply node and at least one power supply source;
• an additional electronic component coupled to a main power supply source and configured to provide an additional signal, wherein variation in time of the additional signal is based on power supply by the main power supply source;
• an additional detecting circuit coupled to the additional electronic component, the additional detecting circuit being configured to detect the additional signal provided by the additional electronic component and to provide an additional digital switch array control signal based on the variation in time of the additional signal;
• wherein the switch array comprises at least one first switch coupled between the at least one common power supply node and the at least one power supply source, and at least one additional switch coupled between the at least one common power supply node and the main power supply source;
• wherein the switch array is configured to control the power supply via the at least one common power supply node based on the digital switch array control signal and the additional digital switch array control signal,
• wherein the at least one first switch is controlled by the digital switch array control signal and the at least one additional switch is controlled by the additional digital switch array control signal.

A method for operating a circuit arrangement, the method comprising:

• providing a signal by an electronic component coupled to at least one common power supply node, wherein variation in time of the signal is dependent on power supply to the least one common power supply node;
• providing a digital switch array control signal dependent on the variation in time of the signal provided by the electronic component;
• providing at least one additional signal by at least one additional electronic component coupled to the at least one common power supply node, wherein variation in time of the at least one additional signal is dependent on power supply to the at least one common power supply node, and wherein the at least one additional signal is time-shifted with respect to the first signal;
• providing at least one additional digital switch array control signal based on the variation in time of the at least one additional signal and the at least one additional digital switch array control signal;
• controlling the power supply to the at least one common power supply node by means of a switch array coupled between the at least one common power supply node and at least one power supply source, dependent on the digital switch array control signal and on the at least one additional digital switch array control signal wherein the switch array comprises at least one first switch and at least one additional switch coupled between the at least one common power supply node and the at least one power supply source and wherein the at least one first switch is controlled by the digital switch array control signal and the at least one additional switch is controlled by the at least one additional digital switch array control signal.

A method for operating a circuit arrangement, the method comprising:

• providing a signal by an electronic component coupled to at least one common power supply node, wherein variation in time of the signal is dependent on power supply to the least one common power supply node;
• providing a digital switch array control signal dependent on the variation in time of the signal provided by the electronic component;
• providing an additional signal by an additional electronic component coupled to a main power supply source, wherein variation in time of the additional signal is based on power supply by the main power supply source;
• providing an additional digital switch array control signal based on the variation in time of the additional signal controlling the power supply to the at least one common power supply node by means of a switch array coupled between the at least one common power supply node and at least one power supply source, dependent on the digital switch array control signal and on the additional digital switch array control signal wherein the switch array comprises at least one first switch coupled between the at least one common power supply node and the at least one power supply source, and at least one additional switch coupled between the at least one common power supply node and the main power supply source and wherein the at least one first switch is controlled by the digital switch array control signal and the at least one additional switch is controlled by the additional digital switch array control signal.