公开(公告)号：US20230384848A1

公开(公告)日：2023-11-30

申请号：US18305474

申请日：2023-04-24

Applicant: Samsung Electronics Co., Ltd.

Inventor： Soo-Young JI ,  Younggeon Yoo ,  Brianmyungjune Jung ,  Sung Chul Hur

IPC: G06F1/26 ,  G06F1/30

CPC classification number: G06F1/263 ,  G06F1/305

Abstract: Disclosed is a storage device including a non-volatile memory that inputs or outputs data at a request of a host system, a volatile memory that temporarily stores data input to or output from the non-volatile memory, an internal spare power source that supplies power to a part of the volatile memory in response to main power supplied from the host system dropping to a first amount or less, and a storage controller that controls the non-volatile memory and the volatile memory. The storage controller is configured to divide the volatile memory into area-received-duplication-power, and at least one area-received-spare-power, in response to the main power dropping to the first amount or less, to redundantly supply spare power to the area-received-duplication-power from an external spare power source and the internal spare power source, and to supply the spare power to the at least one area-received-spare-power from the external spare power source.