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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：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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公开(公告)号：US10714945B2
公开(公告)日：2020-07-14
申请号：US16168017
申请日：2018-10-23
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Tae Hwang Kong , Sun Kyu Lee , Sung Yong Lee , Dae Yong Kim , Sang Ho Kim
Abstract: A charge control circuit includes: a charge current control circuit configured to receive an input voltage at a first node, output a sensing current to a second node, and turn on a power transistor; a comparator configured to compare a voltage level of the second node with a voltage level of a third node, wherein the third node receives a charging current from the power transistor; a current mirror configured to generate a mirror current corresponding to the sensing current; and an amplifier configured to receive a first feedback voltage based on the mirror current, and amplify a difference between the first feedback voltage and a reference voltage to generate a switch control signal, wherein in response to the switch control signal and a plurality of control signals, the charge current control circuit is configured to decrease the sensing current and turn on the power transistor.
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公开(公告)号：US10110032B2
公开(公告)日：2018-10-23
申请号：US15096687
申请日：2016-04-12
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Tae Hwang Kong , Sun Kyu Lee , Sung Yong Lee , Dae Yong Kim , Sang Ho Kim
Abstract: A charge control circuit includes: a charge current control circuit configured to receive an input voltage at a first node, output a sensing current to a second node, and turn on a power transistor; a comparator configured to compare a voltage level of the second node with a voltage level of a third node, wherein the third node receives a charging current from the power transistor; a current mirror configured to generate a mirror current corresponding to the sensing current; and an amplifier configured to receive a first feedback voltage based on the mirror current, and amplify a difference between the first feedback voltage and a reference voltage to generate a switch control signal, wherein in response to the switch control signal and a plurality of control signals, the charge current control circuit is configured to decrease the sensing current and turn on the power transistor.
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