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公开(公告)号：US20230400870A1
公开(公告)日：2023-12-14
申请号：US18137698
申请日：2023-04-21
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： HYUNSEOK NAM
IPC: G05F1/575
CPC classification number: G05F1/575
Abstract: A voltage regulator providing an output voltage includes; a compensator receiving a reference voltage and a first feedback voltage corresponding to the output voltage and generating a comparison voltage in response to the reference voltage and the first feedback voltage, a buffer input control circuit receiving the comparison voltage and generating a buffer input voltage in response to the comparison voltage and a second feedback voltage, a buffer circuit receiving the buffer input voltage and generating a gate voltage in response to the buffer input voltage, a pass transistor generating an output voltage at an output voltage node in response to the gate voltage, and a fast voltage compensating circuit generating the second feedback voltage in response to the output voltage.
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公开(公告)号：US20230137979A1
公开(公告)日：2023-05-04
申请号：US17959545
申请日：2022-10-04
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： HYUNSEOK NAM
IPC: G01R31/317 , H03K19/20 , H03K4/06
Abstract: An electronic circuit includes a ramp signal generator, an oscillator, a monitoring circuit and a logic controller. The ramp signal generator generates a ramp signal. The oscillator generates a clock signal. The monitoring circuit operates in an operation mode selected from a first mode of monitoring an external output voltage and a second mode of performing an analog built-in self-test (ABIST), and generates a comparator output. The logic controller controls the monitoring circuit to operate in the operation mode. When the monitoring circuit operates in the second mode, the logic controller counts the clock signal, controls the monitoring circuit to perform the ABIST based on the ramp signal, and generates an ABIST output indicating whether the monitoring circuit operates normally based on a value of the counting and the comparator output.
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公开(公告)号：US20200136598A1
公开(公告)日：2020-04-30
申请号：US16506311
申请日：2019-07-09
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： HYUNSEOK NAM
Abstract: A duty timing detector includes a saw-tooth voltage generator that outputs a saw-tooth voltage in synchronization with a toggle signal repeatedly transitioning between a high level and a low level. A sample block obtains a level of the saw-tooth voltage in synchronization with the toggle signal and outputs the obtained level as a first sample voltage. A hold block stores the first sample voltage in synchronization with the toggle signal and outputs the stored first sample voltage as a second sample voltage. A voltage divider divides the second sample voltage to output a division voltage. A comparator compares the saw-tooth voltage and the division voltage to detect a target timing in each duty of the toggle signal.
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公开(公告)号：US20220109408A1
公开(公告)日：2022-04-07
申请号：US17240630
申请日：2021-04-26
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： HYUNSEOK NAM
Abstract: An amplifier includes an input circuit that amplifies a difference between a first input voltage and a second input voltage to generate a first current and a second current. A positive feedback circuit amplifies a difference between the first current and the second current to generate a third current and a fourth current and outputs a difference between the third current and the fourth current through an output node. A temperature compensation circuit adjusts an amplification factor of the positive feedback circuit in response to a change of temperature.
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公开(公告)号：US20160087462A1
公开(公告)日：2016-03-24
申请号：US14856376
申请日：2015-09-16
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： RYOTARO KUDO , DONGJIN KEUM , YUS KO , HYUNSEOK NAM , GWANG-YOL NOH , WHANSEOK SEO , JAEYOUP CHOI
IPC: H02J7/00
CPC classification number: H02J7/0068 , H02J7/0052 , H02J7/007
Abstract: A charger circuit includes a first path regulator, a path switch, and a second path regulator. The first path regulator is configured to generate a first regulation current based on an input voltage and an input current. The path switch is configured to pass or block a first charging current in response to a control signal. The first charging current is generated based on the first regulation current. The second path regulator is configured to generate a second regulation current based on the input voltage and the input current. At least one of the first charging current and a second charging current is used to charge a battery. The second charging current is generated based on the second regulation current. The second charging current is transferred to the battery without passing through the path switch.
Abstract translation: 充电器电路包括第一路径调节器，路径开关和第二路径调节器。 第一路径调节器被配置为基于输入电压和输入电流产生第一调节电流。 路径开关被配置为响应于控制信号传递或阻止第一充电电流。 基于第一调节电流产生第一充电电流。 第二路径调节器被配置为基于输入电压和输入电流产生第二调节电流。 使用第一充电电流和第二充电电流中的至少一个为电池充电。 基于第二调节电流产生第二充电电流。 第二充电电流被传送到电池而不通过路径开关。
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Patent Agency Ranking
公开(公告)号：US20210382508A1
公开(公告)日：2021-12-09
申请号：US17338336
申请日：2021-06-03
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： HYUNSEOK NAM , JEONGWOON KONG , JUNHYUN BAE , SANGYOUNG LEE
IPC: G05F1/56
Abstract: A power management integrated circuit (PMIC) includes; a DC-DC converter configured to provide output power to a load, a controller configured to control switching of the DC-DC converter, and a sense circuit including a capacitive element and configured to detect an output current flowing through a node between the DC-DC converter and the load.
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公开(公告)号：US20210044284A1
公开(公告)日：2021-02-11
申请号：US17079579
申请日：2020-10-26
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： HYUNSEOK NAM
Abstract: A duty timing detector includes a saw-tooth voltage generator that outputs a saw-tooth voltage in synchronization with a toggle signal repeatedly transitioning between a high level and a low level. A sample block obtains a level of the saw-tooth voltage in synchronization with the toggle signal and outputs the obtained level as a first sample voltage. A hold block stores the first sample voltage in synchronization with the toggle signal and outputs the stored first sample voltage as a second sample voltage. A voltage divider divides the second sample voltage to output a division voltage. A comparator compares the saw-tooth voltage and the division voltage to detect a target timing in each duty of the toggle signal.
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公开(公告)号：US20230246598A1
公开(公告)日：2023-08-03
申请号：US18131429
申请日：2023-04-06
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： HYUNSEOK NAM
CPC classification number: H03F1/301 , G09G3/20 , H03F3/45264 , H04R3/02 , G09G2310/0291 , H03F2200/447 , H04R2499/11 , H04R2499/13 , H04R2499/15
Abstract: An amplifier includes an input circuit that amplifies a difference between a first input voltage and a second input voltage to generate a first current and a second current. A positive feedback circuit amplifies a difference between the first current and the second current to generate a third current and a fourth current and outputs a difference between the third current and the fourth current through an output node. A temperature compensation circuit adjusts an amplification factor of the positive feedback circuit in response to a change of temperature.
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9.发明申请公开(公告)号：US20220026476A1
公开(公告)日：2022-01-27
申请号：US17007446
申请日：2020-08-31
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： HYUNSEOK NAM
IPC: G01R19/165 , H03K17/687 , G06F1/28
Abstract: An electronic device includes a driver that is connected with a pin, receives an input signal, and outputs an output signal to the pin in response to the input signal, a core circuit that transfers the input signal to the driver, and a monitor circuit that receives the input and output signals and detects a stuck voltage state of the output signal based on the input and output signals. The monitor circuit includes a first detection circuit that detects the stuck voltage state when the input and output signals are logically incorrect, a second detection circuit that detects the stuck voltage state when the input and output signals are logically correct and when the output signal is at a low level, and a third detection circuit that detects the stuck voltage state when the input and output signals are logically correct and when the output signal is at a high level.
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公开(公告)号：US20200266695A1
公开(公告)日：2020-08-20
申请号：US16705748
申请日：2019-12-06
Applicant: Samsung Electronics Co., Ltd.
Inventor： HYUNSEOK NAM
Abstract: In one embodiment, the electronic circuit includes a first amplifying circuit configured to generate a first compensation voltage based on a first reference voltage and an output voltage. The output voltage is from a functional circuit bloc. A second amplifying circuit is configured to generate a control voltage based on an input voltage, a second reference voltage and the first compensation voltage. The second reference voltage is different than the first reference voltage.
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