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公开(公告)号：US20240136833A1
公开(公告)日：2024-04-25
申请号：US18199732
申请日：2023-05-18
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Daewoong CHO , Kyeseok YOON , Seunghoon KIM , Jeongdu YOO , Sungwoo LEE , Jungwook HEO
IPC: H02J7/00
CPC classification number: H02J7/00304 , H02J7/00714 , H02J7/007182
Abstract: A circuit includes: an overcurrent limiting (OCL) detector configured to detect whether a level of an inductor current reaches an OCL level and to generate an OCL detection voltage; a control loop circuit configured to generate a reset voltage by comparing a ramp voltage reflecting the level of the inductor current with an error voltage generated based on an operating condition that is out of a preset operating condition; an adaptive OCL controller configured to generate an OCL control current by counting a number of pulses of the OCL detection voltage and a number of pulses of the reset voltage; an oscillator configured to generate an oscillation voltage wherein a frequency of the oscillation voltage varies based on a magnitude of the overcurrent limit control current; and a switching transistor for switching the inductor current based on the oscillation voltage.
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公开(公告)号：US20250038555A1
公开(公告)日：2025-01-30
申请号：US18753373
申请日：2024-06-25
Applicant: Samsung Electronics Co., Ltd.
Inventor： Sungwoo LEE , Jaekyu KIM , Sungwoo MOON , Daewoong CHO , Jungwook HEO
Abstract: A charging circuit may include a buck-boost circuit and a voltage regulator circuit, wherein the buck-boost circuit converts a first input voltage received at a first node into a first output voltage and charges a battery based on the first output voltage, and time-divisionally converts a second input voltage provided from the battery into a second output voltage provided to a first external device and a third output voltage provided to a second external device, and the voltage regulator circuit adjusts the first input voltage to generate the second output voltage and the third output voltage.
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公开(公告)号：US20240235221A9
公开(公告)日：2024-07-11
申请号：US18199732
申请日：2023-05-19
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Daewoong CHO , Kyeseok YOON , Seunghoon KIM , Jeongdu YOO , Sungwoo LEE , Jungwook HEO
IPC: H02J7/00
CPC classification number: H02J7/00304 , H02J7/00714 , H02J7/007182
Abstract: A circuit includes: an overcurrent limiting (OCL) detector configured to detect whether a level of an inductor current reaches an OCL level and to generate an OCL detection voltage; a control loop circuit configured to generate a reset voltage by comparing a ramp voltage reflecting the level of the inductor current with an error voltage generated based on an operating condition that is out of a preset operating condition; an adaptive OCL controller configured to generate an OCL control current by counting a number of pulses of the OCL detection voltage and a number of pulses of the reset voltage; an oscillator configured to generate an oscillation voltage wherein a frequency of the oscillation voltage varies based on a magnitude of the overcurrent limit control current; and a switching transistor for switching the inductor current based on the oscillation voltage.
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4.发明公开公开(公告)号：US20230142751A1
公开(公告)日：2023-05-11
申请号：US17953755
申请日：2022-09-27
Applicant: Samsung Electronics Co., Ltd.
Inventor： Yonghwan CHO , Sungwoo LEE , Hyoungseok OH , Daewoong CHO , Jungwook HEO
IPC: H02J7/00
CPC classification number: H02J7/0019 , H02J7/007182 , H02J2207/20 , H02J2207/40
Abstract: A charger integrated circuit is configured to charge a battery device including a first battery and a second battery connected in series. The circuit includes a direct charger configured to generate a first charging current and a first current based on an input voltage received from an input terminal, the first current used to generate a first system current, and a buck converter configured to generate a second current and a second system current based on the input voltage, the second current used to generate a second charging current. The circuit includes a switched capacitor configured to generate the first system current based on the first current, and to generate the second charging current based on the second current, and a linear charger configured to provide the first charging current and the second charging current to the battery device.
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公开(公告)号：US20230059963A1
公开(公告)日：2023-02-23
申请号：US17891363
申请日：2022-08-19
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Kyeseok YOON , Hyebong KO , Jinwoo SO , Hyoungseok OH , Daewoong CHO , Jungwook HEO
Abstract: A buck converter including: a first switching element connecting an input voltage node to a switching node; a second switching element connecting the switching node to a ground node; a low drop out (LDO) voltage regulator connected to the input voltage node; a pulse width modulation (PWM) controller configured to receive a mode signal indicating an operation mode and toggle, in response to the mode signal, a first control signal for turning on the first switching element or a second control signal for turning on the second switching element; a bootstrap charger configured to receive the mode signal and toggle, in response to the mode signal, a third control signal for turning on the second switching element; and a bootstrap capacitor connecting an output node of the LDO voltage regulator to the switching node.
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Patent Agency Ranking
公开(公告)号：US20240426934A1
公开(公告)日：2024-12-26
申请号：US18532689
申请日：2023-12-07
Applicant: Samsung Electronics Co., Ltd.
Inventor： Jinho KIM , Sangbin MOON , Tae Won SONG , Youngjae KIM , Hyukrae PARK , Jungwook HEO , Terrance Christopher HUANG
IPC: G01R31/392 , G01R31/367 , G01R31/388 , G01R31/389
Abstract: An electronic apparatus includes: a battery; a first calculator configured to obtain sensing data of the battery using a sensor, determine first state information of the battery using the obtained sensing data and a first battery model, and preprocess the obtained sensing data; and a second calculator configured to receive the preprocessed sensing data from the first calculator, determine an aging state of the battery using a second battery model and the received sensing data, update a parameter of the first battery model based on the determined aging state, and transmit the updated parameter to the first calculator.
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公开(公告)号：US20240146178A1
公开(公告)日：2024-05-02
申请号：US18220964
申请日：2023-07-12
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Sungkyu CHO , Kyeseok YOON , Dongjoon KIM , Sungwoo LEE , Daewoong CHO , Jungwook HEO
CPC classification number: H02M1/088 , H02M1/0025 , H02M1/0054 , H02M1/14 , H02M3/158 , H03K3/037
Abstract: A voltage converter, including a switch circuit configured to generate an output voltage by switching an input voltage and a ground voltage based on a driving control signal; an error voltage generator configured to generate an error voltage based on a comparison between the output voltage and a reference voltage; a duty signal generator configured to generate a duty signal having a constant pulse frequency or a modulated pulse frequency, based on a result of the comparing; and a driving controller configured to generate the driving control signal based on the duty signal.
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公开(公告)号：US20230155507A1
公开(公告)日：2023-05-18
申请号：US17985301
申请日：2022-11-11
Applicant: Samsung Electronics Co., Ltd.
Inventor： Sungwoo LEE , Hyoungseok OH , Daewoong CHO , Jungwook HEO
IPC: H02M3/158 , H02J7/00 , H02M3/335 , H02M7/483 , H02M7/5395 , H03K17/693
CPC classification number: H02M3/1582 , H02J7/0068 , H02M3/33584 , H02M7/4837 , H02M7/5395 , H03K17/693
Abstract: A charger integrated circuit includes a bidirectional switching converter including first to fourth switching elements connected in series, an inductor connected to a third switching element, and a capacitor connected to a second switching element and the third switching element, and a controller configured to generate, a first PWM signal and a second PWM signal based on sensing signals from the bidirectional switching converter, and a first switching signal controlling first and fourth switching elements based on the first PWM signal in response to an average of an inductor current being positive, a second switching signal controlling second and third switching elements based on the second PWM signal, and generate the first switching signal based on the second PWM signal, and the second switching signal based on the first PWM signal in response to the average value of the inductor current being negative.
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公开(公告)号：US20220085716A1
公开(公告)日：2022-03-17
申请号：US17536810
申请日：2021-11-29
Applicant: Samsung Electronics Co., Ltd.
Inventor： Kwang Chan LEE , Hyoungseok OH , Hojun YU , Jeongkwang LEE , Jungwook HEO
Abstract: A voltage converter including first to fourth switches between a first voltage node and ground, fifth to eighth switches between the first voltage node and the ground, a first floating capacitor between a first node between the first and second switches and a second node between the third and fourth switches, a second floating capacitor between a third node between the fifth and sixth switches and a fourth node between the seventh and eighth switches, a ninth switch between a second voltage node and a center node, a first inductor between the second node and a third voltage node, a center capacitor between the center node and the ground, a tenth switch between the second voltage node and the third voltage node, a first capacitor between the third voltage node and the ground, and a second capacitor between the second voltage node and the ground may be provided.
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公开(公告)号：US20210075318A1
公开(公告)日：2021-03-11
申请号：US16850413
申请日：2020-04-16
Applicant: Samsung Electronics Co., Ltd.
Inventor： Kwang Chan LEE , Hyoungseok OH , Hojun YU , Jeongkwang LEE , Jungwook HEO
IPC: H02M3/07
Abstract: A voltage converter including first to fourth switches between a first voltage node and ground, fifth to eighth switches between the first voltage node and the ground, a first floating capacitor between a first node between the first and second switches and a second node between the third and fourth switches, a second floating capacitor between a third node between the fifth and sixth switches and a fourth node between the seventh and eighth switches, a ninth switch between a second voltage node and a center node, a first inductor between the second node and a third voltage node, a center capacitor between the center node and the ground, a tenth switch between the second voltage node and the third voltage node, a first capacitor between the third voltage node and the ground, and a second capacitor between the second voltage node and the ground may be provided.
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