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    Charger Having Battery Diagnostic Function and Control Method Thereof
    3.
    发明申请
    Charger Having Battery Diagnostic Function and Control Method Thereof 有权
    具有电池诊断功能的充电器及其控制方法

    公开(公告)号：US20150288197A1

    公开(公告)日：2015-10-08

    申请号：US14436323

    申请日：2013-10-24

    Applicant: FOUNDATION OF SOONGSIL UNIVERSITY-INDUSTRY COOPERATION

    Inventor： Woojin Choi

    IPC: H02J7/00 ,  H02J7/02

    CPC classification number: H02J7/007 ,  G01R31/3662 ,  G01R31/3679 ,  H02J7/0021 ,  H02J7/02 ,  H02J7/022 ,  H02J7/025

    Abstract: The present invention relates to a charger capable of diagnosing a lifespan of a battery when the battery is being charged, and a control method thereof. The charger includes a converter applying one of a perturbation voltage and a perturbation current to a battery, and a digital signal processor transmitting a perturbation signal in which an AC signal is added to a DC signal via the converter, measuring an output response of the battery, calculating an impedance spectrum according to the output response of the battery, calculating an impedance parameter by selecting an equivalent circuit according to the impedance spectrum, and estimating a lifespan of the battery by comparing the calculated impedance parameter of the battery with a predetermined impedance parameter of a reference battery.

    Abstract translation: 本发明涉及一种能够诊断电池在充电时的寿命的充电器及其控制方法。 充电器包括对电池施加扰动电压和扰动电流之一的转换器，以及数字信号处理器，其经由转换器发送其中将AC信号添加到DC信号的扰动信号，测量电池的输出响应 根据电池的输出响应计算阻抗谱，根据阻抗谱选择等效电路来计算阻抗参数，并通过将计算出的电池阻抗参数与预定的阻抗参数进行比较来估算电池的使用寿命 的参考电池。

    Multiple output converter and method for controlling the same
    5.
    发明授权
    Multiple output converter and method for controlling the same 有权

    公开(公告)号：US09793817B2

    公开(公告)日：2017-10-17

    申请号：US14767567

    申请日：2014-06-26

    Applicant: Foundation of Soongsil University-Industry Cooperation

    Inventor： Woojin Choi ,  Long Tran Van

    IPC: H02M3/335 ,  H02M1/00

    CPC classification number: H02M3/33561 ,  H02M3/3353 ,  H02M2001/009

    Abstract: A multiple output converter is provided. The multiple output converter includes a power conversion circuit and a switching control unit. The power conversion circuit includes an input unit having at least one first switch, a transformer unit configured to convert a magnitude of power from the input unit, an output unit having a plurality of output terminals, which are configured to receive the power from the transformer unit, and a second switch unit having a plurality of second switches, wherein each of the plurality of second switches is installed in each of the plurality of output terminals, respectively, and is controlled in a time division multiple control manner. The switching control is configured to transmit a pulse width modulation signal to the at least one first switch and the plurality of second switches for controlling the at least one first switch and the plurality of second switches in the time division multiple control manner.

    Charger having battery diagnosis function and method of driving the same
    6.
    发明授权
    Charger having battery diagnosis function and method of driving the same 有权

    公开(公告)号：US09958509B2

    公开(公告)日：2018-05-01

    申请号：US15155691

    申请日：2016-05-16

    Applicant: FOUNDATION OF SOONGSIL UNIVERSITY—INDUSTRY COOPERATION

    Inventor： Woojin Choi ,  Moonsik Choi

    IPC: H02J7/00 ,  H02J7/14 ,  G01R31/36

    CPC classification number: G01R31/3679 ,  G01R31/3662 ,  H02J7/0029 ,  H02J7/0042 ,  H02J7/0047 ,  H02J7/0068 ,  H02J2007/0059

    Abstract: Provided herein is a charger having a battery diagnosis function. The charger is connected between an input power supply supplying an input voltage and a battery and charges the battery with the input voltage. The charger includes a full-bridge-circuit connected to the input power supply and comprising a first switch, a second switch, a third switch, and a fourth switch, a transformer including a primary winding and a secondary winding, wherein the primary winding is connected to the full-bridge-circuit to transform the input voltage received from the full-bridge-circuit and transmits the voltage to the secondary winding, and a rectifying circuit comprising a fifth switch and a sixth switch, connected between the secondary winding and the battery, and rectifying the voltage received from the transformer to charge the battery, or transmitting power in two directions for diagnosing a state-of-health of the battery.

    Active clamp full bridge converter and driving method thereof
    8.
    发明授权
    Active clamp full bridge converter and driving method thereof 有权

    公开(公告)号：US10277138B2

    公开(公告)日：2019-04-30

    申请号：US16071807

    申请日：2016-11-23

    Applicant: Foundation of Soongsil University-Industry Cooperation

    Inventor： Woojin Choi ,  Duong Tran Dai

    IPC: H02M3/335 ,  H02M1/32 ,  H02M1/00

    Abstract: Provided is an active clamp full bridge converter, which includes: a transformer having a primary coil and a secondary coil and configured to convert a voltage; a primary circuit connected to an input capacitor for supplying an input power and including a full bridge circuit having first to fourth switches to transmit the input power to the primary coil according to a switching operation of the first to fourth switches; and a secondary circuit connected to the secondary coil and including a rectifying bridge circuit having first to fourth diodes, an active clamp circuit connected to the rectifying bridge circuit and composed of an active clamp switch and a clamping capacitor connected in series, and an output inductor connected to the active clamp circuit, to transmit an energy received from the primary circuit by the transformer to an output capacitor connected to the output inductor and the active clamp circuit.

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