公开(公告)号：US11495961B2

公开(公告)日：2022-11-08

申请号：US17229436

申请日：2021-04-13

Applicant: Samsung SDI Co., Ltd.

Inventor： Keunyoung Kim ,  Hyun Kim ,  Jaesoon Park ,  Sunho Choi

IPC: H02H9/00 ,  H03K17/687

Abstract: Provided is an inrush current limiter and a system including the same, the inrush current limiter including first and second input nodes for receiving an input voltage from a power source, a first output node and a second output node for being connected with a load, an inrush-current-limiting portion including a transistor connected between the first input node and the first output node, and for turning on the transistor when a voltage level of the input voltage is higher than a first level, and for limiting an inrush current by controlling time until the transistor is turned on after application of the input voltage, a switch connected between a control terminal of the transistor and the second input node, and a mode controller for turning on the switch when the voltage level of the input voltage is lower than a second level that is lower than the first level.

公开(公告)号：US11476840B2

公开(公告)日：2022-10-18

申请号：US17446575

申请日：2021-08-31

Applicant: Samsung SDI Co., Ltd.

Inventor： Keunyoung Kim ,  Hyun Kim ,  Jaesoon Park ,  Sunho Choi

IPC: H03K5/153 ,  H03K3/013 ,  H03K5/24

Abstract: A comparator circuit includes: a comparator comprising: a first input terminal receiving an input voltage; a second input terminal receiving a reference voltage; an output terminal outputting an output signal according to a result of a comparison between the input voltage and the reference voltage; and a power supply terminal receiving an operating voltage; and a mode controller applying a first operating voltage and a first reference voltage to the second input terminal and the power supply terminal of the comparator for a predetermined delay time in response to a supply of power being initiated from a power supply, and applying a second operating voltage and a second reference voltage to the second input terminal and the power supply terminal of the comparator in response to the delay time elapsing, wherein the first operating voltage is higher than a ground voltage and is lower than the second operating voltage.

公开(公告)号：US11121566B2

公开(公告)日：2021-09-14

申请号：US16532153

申请日：2019-08-05

Applicant: Samsung SDI Co., Ltd.

Inventor： Sunho Choi

IPC: H02J7/00 ,  H01M10/42 ,  H01M10/44 ,  G05F1/575

Abstract: The described technology relates to a power supply and a battery pack including the same. In one embodiments, the power supply includes an input terminal configured to receive input power, a regulator configured to reduce a voltage of the input power, and a sensing circuit configured to sense an output voltage of the regulator. The power supply also includes a reference voltage controller configured to receive the input power as driving power and to feedback-control the output voltage of the regulator to correspond to a preset reference voltage, based on the sensed output voltage. The power supply further includes a switch arranged between the input terminal and the reference voltage controller and configured to control the driving power applied to the reference voltage controller.

公开(公告)号：US11088551B2

公开(公告)日：2021-08-10

申请号：US16532153

申请日：2019-08-05

Applicant: Samsung SDI Co., Ltd.

Inventor： Sunho Choi

IPC: H02J7/00 ,  H01M10/42 ,  H01M10/44 ,  G05F1/575

Abstract: The described technology relates to a power supply and a battery pack including the same. In one embodiments, the power supply includes an input terminal configured to receive input power, a regulator configured to reduce a voltage of the input power, and a sensing circuit configured to sense an output voltage of the regulator. The power supply also includes a reference voltage controller configured to receive the input power as driving power and to feedback-control the output voltage of the regulator to correspond to a preset reference voltage, based on the sensed output voltage. The power supply further includes a switch arranged between the input terminal and the reference voltage controller and configured to control the driving power applied to the reference voltage controller.

公开(公告)号：US11539205B2

公开(公告)日：2022-12-27

申请号：US17229436

申请日：2021-04-13

Applicant: Samsung SDI Co., Ltd.

Inventor： Keunyoung Kim ,  Hyun Kim ,  Jaesoon Park ,  Sunho Choi

IPC: H02H9/00 ,  H03K17/687

Abstract: Provided is an inrush current limiter and a system including the same, the inrush current limiter including first and second input nodes for receiving an input voltage from a power source, a first output node and a second output node for being connected with a load, an inrush-current-limiting portion including a transistor connected between the first input node and the first output node, and for turning on the transistor when a voltage level of the input voltage is higher than a first level, and for limiting an inrush current by controlling time until the transistor is turned on after application of the input voltage, a switch connected between a control terminal of the transistor and the second input node, and a mode controller for turning on the switch when the voltage level of the input voltage is lower than a second level that is lower than the first level.