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公开(公告)号：US12149155B2
公开(公告)日：2024-11-19
申请号：US18517508
申请日：2023-11-22
Applicant: Samsung Electronics Co., Ltd.
Inventor： Min Sang Park , Dongjin Keum , Byoungmook Kim
Abstract: An apparatus configured to measure a load current provided to a load of a switching converter includes a pulse generation circuit configured to generate a control pulse based on a power switch driving signal of the switching converter, a reference current generation circuit configured to generate a reference current based on the control pulse, a clock generation circuit configured to generate a clock signal based on the control pulse and the reference current, and a clock counter configured to count the number of cycles of the clock signal during a switching period of the switching converter. The reference current generation circuit is configured to adjust the reference current to compensate for a leakage current generated in the clock generation circuit during the switching period.
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公开(公告)号：US09256237B2
公开(公告)日：2016-02-09
申请号：US14149410
申请日：2014-01-07
Applicant: Samsung Electronics Co., Ltd.
Inventor： Hyoungrae Kim , Dongjin Keum
Abstract: Exemplary embodiments disclose a low drop-out regulator including an error amplification unit which includes a zero compensation circuit configured to compensate a plurality of poles which are generated by an output terminal and a buffer, the error amplification unit is configured to generate a first comparison signal in response to a reference voltage and a feedback voltage, the buffer is configured to generate a second comparison signal in response to the first comparison signal and an input voltage, a pass unit configured to provide an output voltage and a load current to the output terminal in response to the second comparison signal and the input voltage, and a feedback unit configured to provide the feedback voltage to the error amplification unit in response to the output voltage. A driving current of the buffer is independently adjusted with respect to the load current.
Abstract translation: 示例性实施例公开了一种低压差调节器，其包括误差放大单元，该误差放大单元包括零补偿电路，该零补偿电路被配置为补偿由输出端子和缓冲器产生的多个极点，误差放大单元被配置为产生第一比较信号 响应于参考电压和反馈电压，缓冲器被配置为响应于第一比较信号和输入电压而产生第二比较信号，通路单元被配置为向输出端提供输出电压和负载电流 响应于第二比较信号和输入电压，以及反馈单元，被配置为响应于输出电压向误差放大单元提供反馈电压。 相对于负载电流独立地调节缓冲器的驱动电流。
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公开(公告)号：US11863056B2
公开(公告)日：2024-01-02
申请号：US17569075
申请日：2022-01-05
Applicant: Samsung Electronics Co., Ltd.
Inventor： Min Sang Park , Dongjin Keum , Byoungmook Kim
CPC classification number: H02M1/0009 , H02M3/157 , H02M3/158
Abstract: An apparatus configured to measure a load current provided to a load of a switching converter includes a pulse generation circuit configured to generate a control pulse based on a power switch driving signal of the switching converter, a reference current generation circuit configured to generate a reference current based on the control pulse, a clock generation circuit configured to generate a clock signal based on the control pulse and the reference current, and a clock counter configured to count the number of cycles of the clock signal during a switching period of the switching converter. The reference current generation circuit is configured to adjust the reference current to compensate for a leakage current generated in the clock generation circuit during the switching period.
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公开(公告)号：US11018574B2
公开(公告)日：2021-05-25
申请号：US16576562
申请日：2019-09-19
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Jehyung Yoon , Dongjin Keum
Abstract: A voltage converter includes a switch controller controlling operation of first second transistors to generate an output voltage from an input voltage while suppressing harmonics generated by the operation of the first an second transistors, wherein the first transistor includes an embedded snubber including a first damping resistor.
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Patent Agency Ranking
公开(公告)号：US10965214B2
公开(公告)日：2021-03-30
申请号：US16243495
申请日：2019-01-09
Applicant: Samsung Electronics Co., Ltd.
Inventor： Minho Choi , Yus Ko , Dongjin Keum , Hwa Yeal Yu , Younghoon Lee
Abstract: An electronic device includes a power management integrated circuit (PMIC) including a plurality of regulators. Each of the plurality of regulators has a current meter configured to measure a respective load current. A load device is configured to receive real-time load current information from the PMIC and to perform a performance improvement operation based on the real-time load current information.
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6.发明申请公开(公告)号：US20190149045A1
公开(公告)日：2019-05-16
申请号：US16243495
申请日：2019-01-09
Applicant: Samsung Electronics Co., Ltd.
Inventor： Minho Choi , Yus Ko , Dongjin Keum , Hwa Yeal Yu , Younghoon Lee
Abstract: An electronic device includes a power management integrated circuit (PMIC) including a plurality of regulators. Each of the plurality of regulators has a current meter configured to measure a respective load current. A load device is configured to receive real-time load current information from the PMIC and to perform a performance improvement operation based on the real-time load current information.
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公开(公告)号：US09973017B2
公开(公告)日：2018-05-15
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.
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公开(公告)号：US09939828B2
公开(公告)日：2018-04-10
申请号：US14800176
申请日：2015-07-15
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Sungwoo Moon , Myeonglyong Ko , Dongjin Keum , Kyunggoo Moh , Pyungwoo Yeon , Youso Cheon
IPC: G05F1/56
Abstract: A direct current (DC)-DC converting circuit includes a voltage converter generating a regulation current in response to a driving signal and generating an output voltage and an output current; an output voltage regulator regulating the output voltage and outputting a first control signal; a voltage limiter limiting a voltage value of the first control signal below a threshold value; a current sensor sensing an intensity of the regulation current and generating a second control signal having a voltage value corresponding to a value of the sensed intensity; and a driving signal generator generating the driving signal based on the first and second control signals, the first control signal having the voltage value below the threshold value.
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公开(公告)号：US09793811B2
公开(公告)日：2017-10-17
申请号：US14735836
申请日：2015-06-10
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Gwang-Yol Noh , Yus Ko , Dongjin Keum , Hwayeal Yu
IPC: H02M3/158
CPC classification number: H02M3/1588 , Y02B70/1466
Abstract: A voltage converter includes first and second charging elements, first and second switches, and first and second switch controllers. The first switch controller adjusts a first activation timing of a first control signal in response to a pulse width modulation signal, a switch signal, and a first control signal. The first control signal is a signal for controlling the first switch. The second switch controller adjusts a second activation timing of a second control signal in response to the pulse width modulation signal, the first control signal, and a second control signal. The second control signal is a signal for controlling the second switch.
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