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公开(公告)号：US12218534B2
公开(公告)日：2025-02-04
申请号：US17032710
申请日：2020-09-25
Inventor： Sung Yong Lee , Gyu Hyeong Cho , Min Woo Ko , Tae-Hwang Kong , Sang Ho Kim
Abstract: A semiconductor circuit includes a first selection circuit which selects a first battery or a first capacitor, a second selection circuit which selects a second battery or a second capacitor, a voltage measuring circuit which measures a first voltage of the first battery or the first capacitor selected by the first selection circuit, and measures a second voltage of the second battery or the second capacitor selected by the second selection circuit, a controller which compares the first voltage and the second voltage to generate a comparison result, and a switching circuit which receives a signal based on a target output voltage, connects the first battery or capacitor selected by the first selection circuit, and the second battery capacitor selected by the second selection circuit in an interconnection relationship based on the comparison result to provide to an output terminal an output voltage responsive to the target output voltage.
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公开(公告)号：US12079023B2
公开(公告)日：2024-09-03
申请号：US18374028
申请日：2023-09-28
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Jeongpyo Park , Tae-Hwang Kong , Junhyeok Yang , Jooseong Kim
Abstract: An electronic device including: a reference voltage generator circuit to generate a reference voltage based on a first and second voltage, the reference voltage generator circuit including: a first current source to supply a first current to each of a first and second node; an amplifier to amplify a difference between the first voltage of the first node and the second voltage of the second node and to output a difference voltage corresponding to the amplified difference; a first bipolar junction transistor (BJT) connected to the first node; a first resistor connected to the second node; a second BJT connected between the first resistor and ground; a second resistor connected between the second node and ground; and a first transistor to be supplied with a second current from the first current source; and an adaptive cascode circuit to generate a bias voltage applied to a gate of the first transistor.
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Patent Agency Ranking
公开(公告)号：US11543841B2
公开(公告)日：2023-01-03
申请号：US17069500
申请日：2020-10-13
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Sungmin Yoo , Joowon Park , Tae-Hwang Kong , Sangho Kim , Hyunmyoung Kim , Jaeseung Lee
IPC: G05F1/46 , G05F3/16 , G06F1/3206 , G05F1/565
Abstract: A power manager circuit is provided. The power manager circuit includes a bandgap reference circuit, first and second monitoring circuits, and a reference buffer. The bandgap reference circuit generates a first voltage, based on an external voltage that is external to the power manager circuit. The first monitoring circuit determines a logical value of a first alarm signal, based on whether a first voltage level of the first voltage is within a first range. The reference buffer generates a second voltage, based on the first voltage. The second monitoring circuit determines a logical value of a second alarm signal, based on whether a second voltage level of the second voltage is within a second range.
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公开(公告)号：US11340644B2
公开(公告)日：2022-05-24
申请号：US17315621
申请日：2021-05-10
Applicant: Samsung Electronics Co., Ltd.
Inventor： Donghoon Jung , Tae-Hwang Kong , Sangho Kim , Junhyeok Yang , Jeongpyo Park
Abstract: Disclosed is an electronic device, which includes an amplifier circuit that receives a feedback voltage and a reference voltage and amplifies a difference between the feedback voltage and the reference voltage to output an amplified difference voltage, an analog-to-digital converter that converts the amplified difference voltage to a digital code including two or more bits, and low-dropout (LDO) regulators that outputs output voltages based on the digital code. Each of the LDO regulators includes power transistors outputting a corresponding output voltage of the output voltages, drives one of the power transistors in a switching state, and drives each of remaining power transistors in a turned-on state or a turned-off state.
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5.发明授权公开(公告)号：US11797040B2
公开(公告)日：2023-10-24
申请号：US17385010
申请日：2021-07-26
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Jeongpyo Park , Tae-Hwang Kong , Junhyeok Yang , Jooseong Kim
Abstract: An electronic device including: a reference voltage generator circuit to generate a reference voltage based on a first and second voltage, the reference voltage generator circuit including: a first current source to supply a first current to each of a first and second node; an amplifier to amplify a difference between the first voltage of the first node and the second voltage of the second node and to output a difference voltage corresponding to the amplified difference; a first bipolar junction transistor (BJT) connected to the first node; a first resistor connected to the second node; a second BJT connected between the first resistor and ground; a second resistor connected between the second node and ground; and a first transistor to be supplied with a second current from the first current source; and an adaptive cascode circuit to generate a bias voltage applied to a gate of the first transistor.
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公开(公告)号：US20210294365A1
公开(公告)日：2021-09-23
申请号：US17069500
申请日：2020-10-13
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： SUNGMIN YOO , Joowon Park , Tae-Hwang Kong , Sangho Kim , Hyunmyoung Kim , Jaeseung Lee
IPC: G05F1/46 , G05F1/565 , G06F1/3206 , G05F3/16
Abstract: A power manager circuit is provided. The power manager circuit includes a bandgap reference circuit, first and second monitoring circuits, and a reference buffer. The bandgap reference circuit generates a first voltage, based on an external voltage that is external to the power manager circuit. The first monitoring circuit determines a logical value of a first alarm signal, based on whether a first voltage level of the first voltage is within a first range. The reference buffer generates a second voltage, based on the first voltage. The second monitoring circuit determines a logical value of a second alarm signal, based on whether a second voltage level of the second voltage is within a second range.
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公开(公告)号：US20210257841A1
公开(公告)日：2021-08-19
申请号：US17032710
申请日：2020-09-25
Inventor： Sung Yong Lee , Gyu Hyeong Cho , Min Woo Ko , Tae-Hwang Kong , Sang Ho Kim
Abstract: A semiconductor circuit includes a first selection circuit which selects a first battery or a first capacitor, a second selection circuit which selects a second battery or a second capacitor, a voltage measuring circuit which measures a first voltage of the first battery or the first capacitor selected by the first selection circuit, and measures a second voltage of the second battery or the second capacitor selected by the second selection circuit, a controller which compares the first voltage and the second voltage to generate a comparison result, and a switching circuit which receives a signal based on a target output voltage, connects the first battery or capacitor selected by the first selection circuit, and the second battery capacitor selected by the second selection circuit in an interconnection relationship based on the comparison result to provide to an output terminal an output voltage responsive to the target output voltage.
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