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1.
公开(公告)号:US20200310477A1
公开(公告)日:2020-10-01
申请号:US16582401
申请日:2019-09-25
Applicant: Samsung Electronics Co., Ltd.
Inventor: Ikhwan KIM , Nomiyama TAKAHIRO , Jiseon PAEK , Jaeyeol HAN
Abstract: A regulating circuit including a first direct current (DC)-DC converter configured to apply a first supply voltage to a first node in a first mode and apply the first supply voltage to a second node in a second mode, a first low drop output (LDO) regulator connected to the first node, the first LDO regulator configured to provide an output voltage to an output node by regulating the first supply voltage of the first node, and a second LDO regulator connected to the first node, the second LDO regulator configured to provide an auxiliary current to the first node in the second mode may be provided.
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公开(公告)号:US20230050531A1
公开(公告)日:2023-02-16
申请号:US17702163
申请日:2022-03-23
Applicant: Samsung Electronics Co., Ltd.
Inventor: Jeongkwang LEE , Ikhwan KIM , Takahiro NOMIYAMA , Youngho JUNG
Abstract: A voltage dividing capacitor circuit includes first capacitor through third capacitor dividers and first through fourth load capacitors. The first capacitor divider includes a first flying capacitor and a plurality of first switches connected in series between a first voltage node and a ground node, and is connected to a second voltage node. The second capacitor divider is connected to the first voltage node, the second voltage node, and a first intermediate voltage node. The third capacitor divider is connected to the second voltage node, the ground voltage node, and a second intermediate voltage node. The first through fourth load capacitors are connected in series between the first voltage node and the ground node. The second capacitor divider includes a second flying capacitor and a plurality of second switches connected in series between the first voltage node and the second voltage node.
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3.
公开(公告)号:US20220060114A1
公开(公告)日:2022-02-24
申请号:US17521187
申请日:2021-11-08
Applicant: Samsung Electronics Co., Ltd.
Inventor: Ikhwan KIM , Nomiyama TAKAHIRO , Jiseon PAEK , Jaeyeol HAN
Abstract: A regulating circuit including a first direct current (DC)-DC converter configured to apply a first supply voltage to a first node in a first mode and apply the first supply voltage to a second node in a second mode, a first low drop output (LDO) regulator connected to the first node, the first LDO regulator configured to provide an output voltage to an output node by regulating the first supply voltage of the first node, and a second LDO regulator connected to the first node, the second LDO regulator configured to provide an auxiliary current to the first node in the second mode may be provided.
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公开(公告)号:US20250070722A1
公开(公告)日:2025-02-27
申请号:US18741079
申请日:2024-06-12
Applicant: Samsung Electronics Co., Ltd.
Inventor: Ikhwan KIM , Junsuk BANG , Jeongil SEO
Abstract: A power modulator configured to provide a supply voltage of a power amplifier. The power modulator includes a converter configured to output the supply voltage to the power amplifier, a switch connected to a first capacitor and a second capacitor, a first end of the first capacitor being connected to the converter, a second end of the first capacitor being connected to the switch, a first end of the second capacitor being connected to the converter, a second end of the second capacity being connected to a ground and the switch, and a capacitance of the second capacitor being less than a capacitance of the first capacitor, and a driver connected to the switch, the driver being configured to turn off the switch based on an occurrence of a transition of the supply voltage.
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5.
公开(公告)号:US20230145751A1
公开(公告)日:2023-05-11
申请号:US18153208
申请日:2023-01-11
Applicant: Samsung Electronics Co., Ltd.
Inventor: Jeongkwang LEE , Ikhwan KIM , Takahiro NOMIYAMA , Youngho JUNG
Abstract: A voltage dividing capacitor circuit includes a first capacitor voltage divider and a second capacitor voltage divider. The first capacitor voltage divider is connected to a second voltage node, the first capacitor voltage divider includes a first flying capacitor and a plurality of first switches, the second voltage node coupled to a second load capacitor, the plurality of first switches connected in series between a first voltage node and a ground node, the first voltage node coupled to a first load capacitor, and the ground node coupled to a ground voltage. The second capacitor voltage divider is connected between the first voltage node and the second voltage node, and includes a second flying capacitor and a plurality of second switches, the plurality of second switches connected in series between the first voltage node and the second voltage node.
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6.
公开(公告)号:US20220075401A1
公开(公告)日:2022-03-10
申请号:US17334053
申请日:2021-05-28
Applicant: Samsung Electronics Co., Ltd.
Inventor: Jeongkwang LEE , Ikhwan KIM , Takahiro NOMIYAMA , Youngho JUNG
IPC: G05F1/56
Abstract: A voltage dividing capacitor circuit includes a first capacitor voltage divider and a second capacitor voltage divider. The first capacitor voltage divider is connected to a second voltage node, the first capacitor voltage divider includes a first flying capacitor and a plurality of first switches, the second voltage node coupled to a second load capacitor, the plurality of first switches connected in series between a first voltage node and a ground node, the first voltage node coupled to a first load capacitor, and the ground node coupled to a ground voltage. The second capacitor voltage divider is connected between the first voltage node and the second voltage node, and includes a second flying capacitor and a plurality of second switches, the plurality of second switches connected in series between the first voltage node and the second voltage node.
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