公开(公告)号：US20220101889A1

公开(公告)日：2022-03-31

申请号：US17346212

申请日：2021-06-12

Applicant: Samsung Electronics Co., Ltd.

Inventor： Chunghyun Ryu ,  Minsung Kil ,  Youngsang Cho

IPC: G11C5/14

Abstract: In a method of resetting a storage device, an internal power supply voltage is generated based on an external power supply voltage. A first reset control signal that is activated when a level of the internal power supply voltage is higher than a reference level. A second reset control signal that is activated after a power-on of the storage device is completed or deactivated after a predetermined delay time from when the external power supply voltage is turned off. A final reset control signal is generated based on the first reset control signal and the second reset control signal. The final reset control signal is activated when at least one of the first and second reset control signals is activated. After the external power supply voltage is turned off, a reset operation is performed when the final reset control signal is activated.

公开(公告)号：US12271265B2

公开(公告)日：2025-04-08

申请号：US18359406

申请日：2023-07-26

Applicant: Samsung Electronics Co., Ltd.

Inventor： Suckhyun Nam ,  Taesun Park ,  Minsung Kil ,  Ho-Jin Chun

IPC: G06F11/14 ,  G06F1/30 ,  G06F11/30

Abstract: A storage device includes a plurality of power circuits configured to operate sequentially to drive the storage device, a control circuit configured to, monitor a plurality of first monitoring signals received from the plurality of power circuits, and generate a retry request in response to detection of hardware initialization failure in at least one of the plurality of power circuits based on the plurality of first monitoring signals, and a power sequence circuit configured to, monitor a plurality of second monitoring signals received from the plurality of power circuits and the control circuit, and retry a hardware initialization operation for at least one power circuit of the plurality of power circuits based on the retry request and the plurality of second monitoring signals.

公开(公告)号：US11854648B2

公开(公告)日：2023-12-26

申请号：US17947301

申请日：2022-09-19

Applicant: Samsung Electronics Co., Ltd.

Inventor： Chunghyun Ryu ,  Minsung Kil ,  Youngsang Cho

IPC: G11C5/14

CPC classification number: G11C5/148

Abstract: In a method of resetting a storage device, an internal power supply voltage is generated based on an external power supply voltage. A first reset control signal that is activated when a level of the internal power supply voltage is higher than a reference level. A second reset control signal that is activated after a power-on of the storage device is completed or deactivated after a predetermined delay time from when the external power supply voltage is turned off. A final reset control signal is generated based on the first reset control signal and the second reset control signal. The final reset control signal is activated when at least one of the first and second reset control signals is activated. After the external power supply voltage is turned off, a reset operation is performed when the final reset control signal is activated.

公开(公告)号：US11488640B2

公开(公告)日：2022-11-01

申请号：US17346212

申请日：2021-06-12

Applicant: Samsung Electronics Co., Ltd.

Inventor： Chunghyun Ryu ,  Minsung Kil ,  Youngsang Cho

IPC: G11C5/14

Abstract: In a method of resetting a storage device, an internal power supply voltage is generated based on an external power supply voltage. A first reset control signal that is activated when a level of the internal power supply voltage is higher than a reference level. A second reset control signal that is activated after a power-on of the storage device is completed or deactivated after a predetermined delay time from when the external power supply voltage is turned off. A final reset control signal is generated based on the first reset control signal and the second reset control signal. The final reset control signal is activated when at least one of the first and second reset control signals is activated. After the external power supply voltage is turned off, a reset operation is performed when the final reset control signal is activated.

公开(公告)号：US12142317B2

公开(公告)日：2024-11-12

申请号：US17876077

申请日：2022-07-28

Applicant: Samsung Electronics Co., Ltd.

Inventor： Hojin Chun ,  Minsung Kil ,  Hyoungtaek Lim

IPC: G11C5/14 ,  G11C14/00

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.

公开(公告)号：US20230016511A1

公开(公告)日：2023-01-19

申请号：US17947301

申请日：2022-09-19

Applicant: Samsung Electronics Co., Ltd.

Inventor： Chunghyun Ryu ,  Minsung Kil ,  Youngsang Cho

IPC: G11C5/14

Abstract: In a method of resetting a storage device, an internal power supply voltage is generated based on an external power supply voltage. A first reset control signal that is activated when a level of the internal power supply voltage is higher than a reference level. A second reset control signal that is activated after a power-on of the storage device is completed or deactivated after a predetermined delay time from when the external power supply voltage is turned off. A final reset control signal is generated based on the first reset control signal and the second reset control signal. The final reset control signal is activated when at least one of the first and second reset control signals is activated. After the external power supply voltage is turned off, a reset operation is performed when the final reset control signal is activated.