Power path controller of a system-on-chip
AssigneeSamsung Electronics Co., Ltd.
InventorsSe-Ki KIM, Dae-Yong KIM, Dong-Hun HEO
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Abstract
A power path controller included in a system-on-chip (SoC) is provided. The power path controller is coupled to a first power source and a second power source. The power path controller includes a first switch located between the first power source and a memory core included in the SoC, a second switch located between the second power source and the memory core, a comparator configured to compare a first power supply voltage supplied from the first power source with a second power supply voltage supplied from the second power source, and a switch controller configured to selectively activate the first switch or the second switch according to a comparison result of the comparator.
Claims26
A power path controller included in a system-on-chip (SoC), the power path controller coupled to a first power source and a second power source, the power path controller comprising:
- a first switch located between the first power source and a memory core included in the SoC;
- a second switch located between the second power source and the memory core;
- a comparator configured to compare a first power supply voltage supplied from the first power source with a second power supply voltage supplied from the second power source;
- and
- a switch controller configured to selectively activate the first switch or the second switch according to a comparison result of the comparator.
(canceled)
9-12. (canceled)
(canceled)
23-24. (canceled)
A power path controller included in a system-on-chip (SoC), the power path controller coupled to a first power source and to a plurality of second power sources, the power path controller comprising:
- a first switch located between the first power source and a memory core included in the SoC;
- a plurality of second switches located between the second power sources and the memory core, respectively;
- and
- a switch controller configured to selectively activate the first switch or one of the second switches such that a first power supply voltage supplied from the first power source or one of a plurality of second power supply voltages supplied from the second power sources is supplied to the memory core, the first power supply voltage being a dynamically changed power supply voltage, and the second power supply voltages being constant power supply voltages having different voltage levels from one another.
26-27. (canceled)
A power path controller included in a system-on-chip (SoC), the power path controller comprising:
- a comparator comprising a first input that is configured to receive a first power supply voltage and a second input that is configured to receive a second power supply voltage;
- a first switch that is electrically connected to the first input of the comparator and generates a first output provided to a memory core included in the SoC;
- a second switch that is electrically connected to the second input of the comparator and generates a second output provided to the memory core;
- and
- a switch controller electrically connected to an output of the comparator and to the first switch and the second switch, the switch controller selectively activating the first switch or the second switch according to the output of the comparator.
31-32. (canceled)
Dependencies are inferred from the claim text.