公开(公告)号：US20250138614A1

公开(公告)日：2025-05-01

申请号：US18903543

申请日：2024-10-01

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Kijoong KIM ,  Yunseo KANG ,  Hojin CHUN

IPC: G06F1/30 ,  G06F1/26

Abstract: An operating method of a storage device, may include: adjusting a value of preset electrical energy to be stored in the auxiliary power supply, based on information about first required energy according to process variability of a main system; adjusting a value of electrical energy to be stored in the auxiliary power supply or a value of second required energy, based on information about the second required energy for a temperature of the main system and a required performance of the main system, to obtain an adjusted value of the electrical energy or an adjusted value of the second required energy; and based on the adjusted value of the electrical energy or the adjusted value of the second required energy being greater than a value of available energy of the auxiliary power supply, outputting a signal indicating that the auxiliary power supply operates in a fail mode.

公开(公告)号：US20230186988A1

公开(公告)日：2023-06-15

申请号：US17876077

申请日：2022-07-28

Applicant: Samsung Electronics Co., Ltd.

Inventor： Hojin CHUN ,  Minsung KIL ,  Hyoungtaek LIM

IPC: G11C14/00

CPC classification number: G11C14/0018

Abstract: A storage device includes a main system; a power loss protection integrated circuit (PLP IC) configured to provide output power to the main system based on external or internal power; and an auxiliary power supply configured to provide the internal power to the PLP IC. The main system may operate in a dump mode where data is backed up in response to at least one of a first condition or a second condition being satisfied. The PLP IC may provide the output power based on the internal power in response to a sudden power off (SPO) occurring. The first condition is satisfied when the SPO occurs and an SPO time is longer than a maximum filtering time. The second condition is satisfied when the SPO occurs and a voltage level of the internal power provided by the auxiliary power supply is lower than a voltage level of a threshold voltage.