公开(公告)号：US20200185041A1

公开(公告)日：2020-06-11

申请号：US16507205

申请日：2019-07-10

Applicant: Samsung Electronics Co., Ltd.

Inventor： Se-heon Baek ,  Ki-chang Jang ,  Dae-seok Byeon

IPC: G11C16/30 ,  G11C16/08 ,  G05F1/575 ,  H02M1/08

Abstract: There are provided a method of operating a voltage generator. The method includes providing a reference voltage, sensing a magnitude of a charge current for increasing voltages of a plurality of word lines based on the reference voltage, determining whether the sensed magnitude of the charge current is greater than a peak current value, increasing the reference voltage in accordance with a first slope when the sensed magnitude of the charge current is less than or equal to the peak current value, and increasing the reference voltage in accordance with a second slope less than the first slope when the detected magnitude of the charge current is greater than the peak current value.

公开(公告)号：US11069415B2

公开(公告)日：2021-07-20

申请号：US16983006

申请日：2020-08-03

Applicant: Samsung Electronics Co., Ltd.

Inventor： Se-heon Baek ,  Dae-seok Byeon ,  Ki-chang Jang ,  Young-sun Min

IPC: G11C16/30 ,  H02M3/07 ,  G11C16/32 ,  G11C11/56 ,  G11C16/04

Abstract: The non-volatile memory device includes a memory cell array including a plurality of memory cells and a voltage generator configured to supply a voltage to the memory cell array. The voltage generator includes a charge pump circuit, a switching circuit, and a stage controller. The charge pump circuit includes a plurality of pump units and is configured to output a pump voltage and a pump current in accordance with a number of pump units that have received an input voltage among the plurality of pump units. The switching circuit is configured to output the pump voltage. The stage controller is configured to receive an input signal corresponding to the pump current and perform a stage control operation of generating a stage control signal for controlling the number of pump units to be driven.

公开(公告)号：US10910071B2

公开(公告)日：2021-02-02

申请号：US16507205

申请日：2019-07-10

Applicant: Samsung Electronics Co., Ltd.

Inventor： Se-heon Baek ,  Ki-chang Jang ,  Dae-seok Byeon

IPC: G11C16/30 ,  G11C16/08 ,  G05F1/575 ,  H02M1/08 ,  G11C5/14 ,  H02M1/00 ,  G11C16/04 ,  H02M3/07 ,  G11C13/00 ,  G11C11/16

Abstract: There are provided a method of operating a voltage generator. The method includes providing a reference voltage, sensing a magnitude of a charge current for increasing voltages of a plurality of word lines based on the reference voltage, determining whether the sensed magnitude of the charge current is greater than a peak current value, increasing the reference voltage in accordance with a first slope when the sensed magnitude of the charge current is less than or equal to the peak current value, and increasing the reference voltage in accordance with a second slope less than the first slope when the detected magnitude of the charge current is greater than the peak current value.