Power management
First Claim
1. An electronic device comprising at least two power management circuits and a signal line connecting said at least two power management circuits;
- wherein each of said at least two power management circuits is adapted to control a power supply to at least one functional component of said electronic device associated to said power management circuit;
wherein each of said at least two power management circuits is adapted to detect at least one of a condition which allows a change of a powering state of said at least one functional component associated to said power management circuit and a condition which requires a change of a powering state of said at least one functional component associated to said power management circuit;
wherein each of said at least two power management circuits is adapted to contribute to a change of a state of said signal line, in case said power management circuit detects a condition which allows or requires, respectively, a change of a powering state of said at least one functional component associated to said power management circuit;
wherein each of said at least two power management circuits is adapted to monitor a state of said signal line; and
wherein each of said at least two power management circuits is adapted to change a powering state of all functional components associated to it upon detection of a change of state of said signal line.
2 Assignments
0 Petitions
Accused Products
Abstract
Each of at least two power management (PM) circuits interconnected by a signal line is adapted to control a power supply to at least one functional component associated to the power management circuit. Each PM circuit is adapted to detect a condition which allows or requires a change of a powering state of the at least one associated functional component and to contribute to a change of a state of the signal line, in case the PM circuit detects a condition which allows or requires, respectively, a change of a powering state of the at least one associated functional component. Each PM circuit is adapted to monitor a state of the signal line. Each PM circuit is adapted to change a powering state of all associated functional components upon detection of a change of state of the signal line.
35 Citations
16 Claims
-
1. An electronic device comprising at least two power management circuits and a signal line connecting said at least two power management circuits;
-
wherein each of said at least two power management circuits is adapted to control a power supply to at least one functional component of said electronic device associated to said power management circuit;
wherein each of said at least two power management circuits is adapted to detect at least one of a condition which allows a change of a powering state of said at least one functional component associated to said power management circuit and a condition which requires a change of a powering state of said at least one functional component associated to said power management circuit;
wherein each of said at least two power management circuits is adapted to contribute to a change of a state of said signal line, in case said power management circuit detects a condition which allows or requires, respectively, a change of a powering state of said at least one functional component associated to said power management circuit;
wherein each of said at least two power management circuits is adapted to monitor a state of said signal line; and
wherein each of said at least two power management circuits is adapted to change a powering state of all functional components associated to it upon detection of a change of state of said signal line. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
-
-
14. A power management circuit comprising:
-
a signal line terminal enabling a connection to a signal line; and
a power supply terminal enabling a control of a power supply to at least one functional component associated to said power management circuit;
wherein said power management circuit is adapted to detect at least one of a condition which allows a change of a powering state of said at least one functional component and a condition which requires a change of a powering state of said at least one functional component;
wherein said power management circuit is adapted to contribute to a change of a state of a signal line connected to said signal line terminal, in case said power management circuit detects a condition which allows or requires, respectively, a change of a powering state of said at least one functional component;
wherein said power management circuit is adapted to monitor a state of a signal line connected to said signal line terminal; and
wherein said power management circuit is adapted to change a powering state of said functional components upon detection of a change of state of a signal line connected to said signal line terminal.
-
-
15. A chip comprising at least one functional component and a power management circuit adapted to control a power supply to said at least one functional component,
wherein said power management circuit is adapted to detect at least one of a condition which allows a change of a powering state of said at least one functional component and a condition which requires a change of a powering state of said at least one functional component; -
wherein said power management circuit is adapted to contribute to a change of a state of a signal line, in case said power management circuit detects a condition which allows or requires, respectively, a change of a powering state of said at least one functional component;
wherein said power management circuit is adapted to monitor a state of said signal line; and
wherein said power management circuit is adapted to change a powering state of said functional components upon detection of a change of state of said signal line.
-
-
16. A method for operating an electronic device comprising at least two power management circuits and a signal line interconnecting said at least two power management circuits, wherein at least one functional component of said electronic device is associated to each of said at least two power management circuits, and wherein each of said at least two power management circuits is adapted to control a power supply to said at least one associated functional component, said method comprising at one of said at least two power management circuits:
-
monitoring a state of said signal line;
monitoring an entry of at least one of a condition which allows a change of a powering state of said at least one functional component associated to said power management circuit and a condition which requires a change of a powering state of said at least one functional component associated to said power management circuit;
contributing to a change of a state of said signal line, in case a condition which allows or requires, respectively, a change of a powering state of said at least one functional component associated to said power management circuit is detected; and
changing a powering state of said at least one functional component associated to said power management circuit upon detection of a change of state of said signal line.
-
Specification