公开(公告)号：US10705155B2

公开(公告)日：2020-07-07

申请号：US16038802

申请日：2018-07-18

Applicant: Samsung Electronics Co., Ltd.

Inventor： Su-yong An ,  Byung-ok Kang ,  Woo-sung Lee ,  Jae-woong Choi ,  Young-sang Cho

IPC: G01R31/40 ,  G11C29/02 ,  G01R31/26 ,  G11C5/14 ,  H02J7/34 ,  G11C16/34 ,  G11C29/00 ,  H02J7/00 ,  G01R31/64 ,  G11C29/04

Abstract: Power management apparatuses are provided. A power management apparatus includes a secondary power device that includes at least one capacitor. The power management apparatus includes a charging circuit that includes a direct current (DC)-DC converter and that is configured to supply power to the secondary power device. Moreover, the power management apparatus includes a measuring circuit that is configured to measure a switching profile of the DC-DC converter, and to determine a state of the secondary power device by comparing at least one time period of the switching profile with a reference time. Related memory systems and methods of operation are also provided.

公开(公告)号：US20190162797A1

公开(公告)日：2019-05-30

申请号：US16038802

申请日：2018-07-18

Applicant: Samsung Electronics Co., Ltd.

Inventor： Su-yong An ,  Byung-ok Kang ,  Woo-sung Lee ,  Jae-woong Choi ,  Young-sang Cho

IPC: G01R31/40 ,  G01R31/02 ,  G11C29/02 ,  G01R31/26 ,  G11C16/34 ,  G11C5/14 ,  H02J7/00 ,  H02J7/34

Abstract: Power management apparatuses are provided. A power management apparatus includes a secondary power device that includes at least one capacitor. The power management apparatus includes a charging circuit that includes a direct current (DC)-DC converter and that is configured to supply power to the secondary power device. Moreover, the power management apparatus includes a measuring circuit that is configured to measure a switching profile of the DC-DC converter, and to determine a state of the secondary power device by comparing at least one time period of the switching profile with a reference time. Related memory systems and methods of operation are also provided.