公开(公告)号：US20220172774A1

公开(公告)日：2022-06-02

申请号：US17210009

申请日：2021-03-23

Applicant: SK hynix Inc.

Inventor： Woongrae KIM ,  Se Won LEE

IPC: G11C11/406 ,  G11C11/4074 ,  G11C11/4076

Abstract: An electronic device includes a drive control signal generation circuit and an internal voltage drive circuit. The drive control signal generation circuit detects a level of an internal voltage to generate a drive control signal that adjusts a level of the internal voltage. The internal voltage drive circuit drives the internal voltage based on the drive control signal.

公开(公告)号：US20240210509A1

公开(公告)日：2024-06-27

申请号：US18193462

申请日：2023-03-30

Applicant: SK hynix Inc.

Inventor： Dong Hyun HWANG ,  Se Won LEE

IPC: G01R35/00 ,  G01R31/28 ,  G01R31/316

CPC classification number: G01R35/005 ,  G01R31/2829 ,  G01R31/316

Abstract: A sensor circuit includes a sensing voltage generating circuit configured to generate a sensing voltage set to have a voltage level corresponding to a sensing condition. The sensor circuit also includes a comparison signal generating circuit configured to compare the sensing voltage with at least one reference voltage to generate at least one comparison signal. The sensor circuit further includes a voltage code calibrating circuit configured to calibrate at least one voltage code for adjusting a voltage level of the reference voltage, based on the at least one comparison signal.

公开(公告)号：US20240162913A1

公开(公告)日：2024-05-16

申请号：US18182071

申请日：2023-03-10

Applicant: SK hynix Inc.

Inventor： Se Won LEE

IPC: H03M1/12 ,  H03M1/18

CPC classification number: H03M1/1245 ,  H03M1/183

Abstract: A sample and hold circuit includes a sampling circuit including a first amplifier configured to amplify an input voltage to generate an amplification voltage, the sampling circuit configured to perform a sampling operation of sampling the amplification voltage. The sample and hold circuit also includes a holding circuit configured to perform a holding operation of setting an output voltage to a voltage level of the input voltage, based on the sampling operation and an amplification operation of a second amplifier.

公开(公告)号：US20220101907A1

公开(公告)日：2022-03-31

申请号：US17550635

申请日：2021-12-14

Applicant: SK hynix Inc.

Inventor： Woongrae KIM ,  Byeong Cheol LEE ,  Se Won LEE

IPC: G11C11/4074 ,  G11C11/406 ,  G11C8/10

Abstract: A power control circuit includes a power control signal generation circuit configured to generate a voltage control signal according to a deep sleep command for operating a semiconductor apparatus in a deep sleep mode; a voltage divider circuit having a division ratio that is changed according to the voltage control signal, and configured to generate a divided voltage by dividing an internal voltage at the changed division ratio; a comparator configured to generate a detection signal by comparing a reference voltage to the divided voltage; an oscillator configured to generate an oscillation signal according to the detection signal; and a pump configured to generate the internal voltage according to the oscillation signal.

公开(公告)号：US20200211616A1

公开(公告)日：2020-07-02

申请号：US16661342

申请日：2019-10-23

Applicant: SK hynix Inc.

Inventor： Woongrae KIM ,  Byeong Cheol LEE ,  Se Won LEE

IPC: G11C11/4074 ,  G11C8/10 ,  G11C11/406

Abstract: A power control circuit includes a power control signal generation circuit configured to generate a voltage control signal according to a deep sleep command for operating a semiconductor apparatus in a deep sleep mode; a voltage divider circuit having a division ratio that is changed according to the voltage control signal, and configured to generate a divided voltage by dividing an internal voltage at the changed division ratio; a comparator configured to generate a detection signal by comparing a reference voltage to the divided voltage; an oscillator configured to generate an oscillation signal according to the detection signal; and a pump configured to generate the internal voltage according to the oscillation signal.

公开(公告)号：US20250015771A1

公开(公告)日：2025-01-09

申请号：US18490557

申请日：2023-10-19

Applicant: SK hynix Inc.

Inventor： Se Won LEE

IPC: H03F3/45 ,  H03K3/356 ,  H03K19/0185

Abstract: An electronic device includes a capacitor connected to an output node of a reception circuit. The reception circuit includes an input unit receiving an input signal and an inverted input signal. The reception circuit also includes a current source including a first PMOS transistor positioned between a power supply voltage terminal and a first internal node and a first NMOS transistor positioned between a ground voltage terminal and a second internal node, the current source configured to amplify a voltage difference of the input signal and the inverted input signal. The reception circuit further includes an output unit driving the output node according to a current supplied from the current source.

公开(公告)号：US20240160235A1

公开(公告)日：2024-05-16

申请号：US18185212

申请日：2023-03-16

Applicant: SK hynix Inc.

Inventor： Se Won LEE

IPC: G05F1/46 ,  G11C5/14 ,  H03K19/00

CPC classification number: G05F1/468 ,  G05F1/465 ,  G11C5/147 ,  H03K19/0016

Abstract: A semiconductor device includes a voltage supply circuit including a first pad to which a first source voltage that is generated from an external power source is applied and a second pad to which a second source voltage that is generated from the external power source is applied and configured to generate an internal voltage based on at least one of the first source voltage and the second source voltage and an internal voltage supply circuit configured to generate the internal voltage by supplying less than all of the second source voltage to the first source voltage when a level of the second source voltage is a set voltage level or higher, when generating the internal voltage based on the first source voltage.

公开(公告)号：US20220413529A1

公开(公告)日：2022-12-29

申请号：US17501589

申请日：2021-10-14

Applicant: SK hynix Inc.

Inventor： Se Won LEE

IPC: G05F1/56 ,  G05F3/08

Abstract: A voltage generation circuit includes an operation voltage driving circuit configured to drive an operation voltage based on a calibration voltage and a feedback voltage and generate the feedback voltage from the operation voltage. The voltage generation circuit also includes a reference voltage calibration circuit configured to generate the calibration reference voltage, wherein the calibration reference voltage varies based on a set value calculated according to the feedback voltage and a reference voltage.

公开(公告)号：US20220172772A1

公开(公告)日：2022-06-02

申请号：US17676644

申请日：2022-02-21

Applicant: SK hynix Inc.

Inventor： Se Won LEE ,  Tae Kyun SHIN ,  Jun Sang LEE

IPC: G11C11/406 ,  G11C11/4074

Abstract: An electronic device includes an internal mode control circuit suitable for generating a burst control signal, a blocking control signal and an internal voltage control signal based on a refresh cycle when an internal mode is performed in a self-refresh operation, a refresh control circuit suitable for generating a refresh signal for performing a refresh operation every refresh cycle when the self-refresh operation is performed, generating the refresh signal every set cycle based on the burst control signal when the internal mode is performed, and blocking the generation of the refresh signal based on the blocking control signal, and an internal voltage generation circuit suitable for adjusting a level of an internal voltage for the refresh operation based on the internal voltage control signal.