Patent ID: 11947401
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 9:
10. A system on chip (SoC) for receiving an external supply voltage, the SoC comprising:
a core configured to maintain a clock gating state in which supplying a clock signal from an outside source is suspended;
a plurality of header switch circuits configured to deliver a supply voltage, which is reduced from the external supply voltage, to the core in response to a plurality of control signals; and
a voltage regulator configured to:
monitor the supply voltage;
change logic levels of the plurality of control signals according to a difference level equal to a difference between the supply voltage and a target voltage;
output the plurality of control signals, the logic levels of which have been changed, to the plurality of header switch circuits; and
generate a compensation supply voltage for the core based on the difference between the supply voltage and the target voltage in the state in which supplying the clock signal to the core is suspended.