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公开(公告)号：US20150381067A1
公开(公告)日：2015-12-31
申请号：US14767567
申请日：2014-06-26
Inventor： Woojin CHOI , Long TRAN VAN
IPC: H02M3/335
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.
Abstract translation: 提供多输出转换器。 多输出转换器包括功率转换电路和开关控制单元。 电力转换电路包括具有至少一个第一开关的输入单元，被配置为转换来自输入单元的功率大小的变压器单元，具有多个输出端子的输出单元，其被配置为从变压器接收电力 单元，以及具有多个第二开关的第二开关单元，其中，所述多个第二开关中的每一个分别安装在所述多个输出端子中的每一个中，并且以时分多重控制方式进行控制。 开关控制被配置为向至少一个第一开关和多个第二开关发送脉宽调制信号，用于以时分多重控制方式控制至少一个第一开关和多个第二开关。
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Patent Agency Ranking
公开(公告)号：US20160006061A1
公开(公告)日：2016-01-07
申请号：US14767573
申请日：2014-08-14
Inventor： Woojin CHOI , Tuan NGUYEN THANH
CPC classification number: H01M8/04865 , G01R31/3662 , G01R31/3679 , G05F3/24 , H01M8/04649 , H01M8/0494 , H02J7/0068 , H02J7/0072
Abstract: A power converter for a fuel cell is provided. The power converter includes a boost converter connected to the fuel cell and configured to control a load voltage at a predetermined magnitude in a normal operation mode and to induce an output response by applying a predetermined perturbation current to the fuel cell in a diagnosis mode, and a digital signal processor configured to extract an impedance parameter by detecting the output response of the fuel cell in the diagnosis mode, and predict a lifespan of the fuel cell according to the impedance parameter. The normal operation mode is configured to supply a voltage in response to a change of a load and the diagnosis mode is configured to predict the lifespan of the fuel cell.
Abstract translation: 提供了一种用于燃料电池的功率转换器。 功率转换器包括连接到燃料电池并且被配置为在正常操作模式下控制预定大小的负载电压并且通过在诊断模式中对燃料电池施加预定的扰动电流而引起输出响应的升压转换器，以及 数字信号处理器，被配置为通过在诊断模式中检测燃料电池的输出响应来提取阻抗参数，并且根据阻抗参数预测燃料电池的寿命。 正常操作模式被配置为响应于负载的变化而提供电压，并且诊断模式被配置为预测燃料电池的寿命。
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公开(公告)号：US20180294674A1
公开(公告)日：2018-10-11
申请号：US15766749
申请日：2016-11-17
Inventor： Woojin CHOI , Hung TRAN DUC
Abstract: Provided is a resonance converter for a wireless charger, which includes a full bridge inverter connected to an input power source that supplies an input voltage and having first to fourth switches, a resonance tank having a plurality of resonators composed of capacitors and coils connected in series and configured to receive the input voltage from the full bridge inverter and perform voltage conversion in an inductive power transfer manner among the plurality of resonators, and a rectification bridge configured to rectify an output voltage sent from the resonance tank and transfer the rectified output voltage to a battery.
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4.发明申请公开(公告)号：US20160349331A1
公开(公告)日：2016-12-01
申请号：US15155691
申请日：2016-05-16
Inventor： Woojin CHOI , Moonsik CHOI
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.
Abstract translation: 本文提供具有电池诊断功能的充电器。 充电器连接在提供输入电压的输入电源和电池之间，并以输入电压对电池充电。 充电器包括连接到输入电源的全桥电路，包括第一开关，第二开关，第三开关和第四开关，包括初级绕组和次级绕组的变压器，其中初级绕组是 连接到全桥电路以变换从全桥电路接收的输入电压，并将电压传输到次级绕组;以及整流电路，包括第五开关和第六开关，连接在次级绕组和 电池，并整流从变压器接收的电压对电池充电，或者在两个方向上发射电力，以诊断电池的健康状况。
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公开(公告)号：US20190028035A1
公开(公告)日：2019-01-24
申请号：US16071807
申请日：2016-11-23
Inventor： Woojin CHOI , Duong TRAN DAI
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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公开(公告)号：US20150372513A1
公开(公告)日：2015-12-24
申请号：US14767571
申请日：2014-08-14
Inventor： Woojin CHOI , Long TRAN VAN
IPC: H02J7/00
CPC classification number: H02J7/007 , H02J7/0003 , H02J7/0013 , H02J7/0021 , H02J7/0022 , H02J7/0052 , H02J7/0081 , H02J7/0083 , H02J7/02 , H02J7/04 , H02J7/045
Abstract: A multiple battery charger is provided. The multiple battery charger includes an input unit configured to receive or block power from a power supply unit, an output unit including a plurality of output terminals, wherein the plurality of output terminals are commonly connected to the input unit and charge a plurality of batteries, and wherein each of the plurality of output terminals includes at least one of a plurality of second switches for a selective receipt of the power from the input unit and the plurality of output terminals are controlled in a time division multiple control manner, and a switching control unit configured to transmit a pulse width modulation signal to the input unit and the output unit so as to independently control the power applied to the plurality of batteries. Accordingly, a plurality of different kinds of batteries and the same kind of batteries in which charge states are different can be simultaneously charged.
Abstract translation: 提供多重电池充电器。 多电池充电器包括：被配置为从电源单元接收或阻断电力的输入单元，包括多个输出端子的输出单元，其中多个输出端子共同连接到输入单元并对多个电池充电， 并且其中所述多个输出端子中的每一个包括多个第二开关中的至少一个，用于选择性地接收来自所述输入单元的功率，并且所述多个输出端子以时分多重控制方式进行控制，并且切换控制 单元，被配置为向输入单元和输出单元发送脉宽调制信号，以独立地控制施加到多个电池的功率。 因此，可以同时充电多种不同种类的电池和充电状态不同的相同种类的电池。
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