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    Core structure and interleaved DC-DC converter topology
    31.
    发明申请
    Core structure and interleaved DC-DC converter topology 有权
    核心结构和交错DC-DC转换器拓扑

    公开(公告)号：US20030198067A1

    公开(公告)日：2003-10-23

    申请号：US10302095

    申请日：2002-11-21

    Applicant: Innovative Technology Licensing, LLC

    Inventor： Jian Sun ,  Xiukuan Jing ,  Sriram Chandrasekaran ,  Vivek Mehrotra

    IPC: H02H007/125

    CPC classification number: H02M7/043 ,  H01F3/08 ,  H01F17/04 ,  H01F30/06

    Abstract: There is disclosed a core structure with a very low profile, high power density and lower losses. The disclosed design allows for a larger core area where the DC fluxes are added, thereby reducing the air-gap requirements in the cores derived from low saturation density materials such as ferrites. The cellular nature of the design can be effectively employed in vertically packaged power converters and modules. Also disclosed is a DC-DC converter topology which preferably employs the disclosed core. N AC drive voltages drive N current doubler rectifiers (CDRs) in accordance with the symmetric modulation scheme; each CDR provides two rectified output currents to an output node. Each AC drive voltage has a switching period Ts. The drive voltages are phase-shifted by Ts/(2*N), such that the rectified output currents of the CDRs are interleaved, thereby reducing output voltage ripple.

    Abstract translation: 公开了具有非常低的轮廓，高功率密度和较低损耗的核心结构。 所公开的设计允许添加DC通量的更大的核心区域，从而降低由诸如铁氧体的低饱和密度材料衍生的芯中的气隙要求。 设计的蜂窝特性可以有效地用于垂直封装的功率转换器和模块。 还公开了优选采用所公开的核心的DC-DC转换器拓扑。 N交流驱动电压根据对称调制方案驱动N个倍增整流器（CDR）; 每个CDR向输出节点提供两个经整流的输出电流。 每个交流驱动电压具有开关周期Ts。 驱动电压通过Ts /（2 * N）相移，使得CDR的整流输出电流交错，从而降低输出电压纹波。

    Core structure
    32.
    发明申请
    Core structure 有权
    核心结构

    公开(公告)号：US20030197585A1

    公开(公告)日：2003-10-23

    申请号：US10126477

    申请日：2002-04-18

    Applicant: INNOVATIVE TECHNOLOGY LICENSING, LLC

    Inventor： Sriram Chandrasekaran ,  Vivek Mehrotra ,  Jian Sun

    IPC: H01F017/06

    CPC classification number: H02M7/043 ,  H01F3/08 ,  H01F17/04 ,  H01F30/06

    Abstract: There is disclosed a core structure with a very low profile, high power density and lower losses. Higher core surface area and improved core utilization in terms of flux density are other desirable feature in the disclosed design. The disclosed design also allowed for a larger core area where the DC fluxes are added, thereby reducing the air-gap requirements in the cores derived from low saturation density materials such as ferrites. The cellular nature of the design can also be effectively employed in vertically packaged power converters and modules.

    Abstract translation: 公开了具有非常低的轮廓，高功率密度和较低损耗的核心结构。 在公开的设计中，更高的核心表面积和在磁通密度方面的改进的磁芯利用率是其它期望的特征。 所公开的设计还允许添加DC通量的较大的核心区域，从而降低由诸如铁氧体的低饱和密度材料衍生的芯中的气隙要求。 设计的蜂窝性质也可以有效地用于垂直封装的功率转换器和模块。

    Apparatus for control of DC power by electromagnetic induction
    33.
    发明授权
    Apparatus for control of DC power by electromagnetic induction 失效
    用于通过电磁感应控制直流电力的装置

    公开(公告)号：US4162441A

    公开(公告)日：1979-07-24

    申请号：US848979

    申请日：1977-11-07

    Applicant: Nathan A. Moerman

    Inventor： Nathan A. Moerman

    IPC: G05F1/38 ,  H01F29/14 ,  H01F38/02 ,  H02M7/04 ,  G05F1/22 ,  G05F7/00

    CPC classification number: H02M7/043 ,  G05F1/38 ,  H01F29/14 ,  H01F38/02 ,  H01F2029/143 ,  H01F2038/026

    Abstract: Apparatus for control of direct current by means of systematic switching and progressive variation of magnetic flux in associated magnetic paths. Subdivision of the input DC power between two transformer devices permits transformation by controlled electromagnetic induction into stabilized outputs which may be recombined into continuous DC power at controlled voltage or current levels.

    Abstract translation: 用于通过相关磁路中的磁通量的系统切换和逐行变化来控制直流电流的装置。 在两个变压器装置之间分配输入直流电力允许通过受控的电磁感应转换成稳定的输出，其可以以受控的电压或电流水平重新组合成连续的直流电力。

    Power supply device and image forming apparatus
    36.
    发明授权
    Power supply device and image forming apparatus 有权

    公开(公告)号：US12126272B2

    公开(公告)日：2024-10-22

    申请号：US17718562

    申请日：2022-04-12

    Applicant: CANON KABUSHIKI KAISHA

    Inventor： Yuya Hirano

    IPC: H02M1/00 ,  H02M1/34 ,  H02M3/335 ,  H02M7/04 ,  H03K17/16

    CPC classification number: H02M7/043 ,  H02M1/0029 ,  H02M1/0054 ,  H02M1/346 ,  H02M3/335 ,  H02M7/05 ,  H03K17/163 ,  Y02B70/10

    Abstract: A power supply device includes a transformer including a primary winding, a secondary winding and an auxiliary winding, first, second and third circuits, and a switch. The first circuit in which a first capacitor and a first rectifier are connected in series is connected to the primary winding in parallel. The switch of which one end is connected to one end of the primary winding. The second circuit in which the auxiliary winding and a second rectifier are connected in serial is connected between a connecting point, to which the first capacitor and the first rectifier are connected, and the other end of the switch. The third circuit including a resistor and a third rectifier is connected to a gate of the switch. In the third circuit, a resistance value in a direction where a current flows into the gate of the switch is smaller than that in a direction where the current flows out of the gate.

    Transformer and power supply device with transformer
    39.
    发明授权
    Transformer and power supply device with transformer 有权

    公开(公告)号：US11862384B2

    公开(公告)日：2024-01-02

    申请号：US17469652

    申请日：2021-09-08

    Applicant: TDK CORPORATION

    Inventor： Lian Wen Zou ,  Qing Lu Qin

    IPC: H01F27/29 ,  H01F27/28 ,  H02M7/04 ,  H01F30/00 ,  H02M7/00

    CPC classification number: H01F27/2847 ,  H01F30/00 ,  H02M7/003 ,  H02M7/043

    Abstract: A transformer and a power supply device. In the transformer, the first secondary coil including: first and second plate coils; and a first holding portion formed therebetween, the second secondary coil including: third and fourth plate coils; and a second holding portion formed therebetween, the first secondary coil is arranged between the third and fourth coils, the ends of the first plate coil and third plate coil are connected by solder, and the ends of the second plate coil and fourth plate coil are connected by solder, when the secondary-side rectifier circuit is a center-tapped rectifier circuit, the first holding portion, the second holding portion, and the bus bar are connected by solder through the connection hole, when the secondary-side rectifier circuit is a rectifier circuit other than the center-tapped rectifier circuit, the first holding portion and the second holding portion are connected by solder through the connection hole.

    Power conversion system
    40.
    发明授权
    Power conversion system 有权

    公开(公告)号：US11799302B2

    公开(公告)日：2023-10-24

    申请号：US16972274

    申请日：2019-05-29

    Applicant: TOSHIBA MITSUBISHI-ELECTRIC INDUSTRIAL SYSTEMS CORPORATION

    Inventor： Yoshinori Tsuruma

    IPC: H02J7/00 ,  H02M7/04

    CPC classification number: H02J7/00306 ,  H02J7/0048 ,  H02M7/043

    Abstract: The power conversion system includes a power conversion circuit, a power conversion control circuit including a charging control mode, and a command value generating part. The charging control mode is a mode in which the output voltage of the power conversion circuit is controlled so that an interconnection inductance receives an interconnection inductance voltage determined by the power supply voltage vector of the AC power supply and the voltage command value vector having a delay phase with respect to the power supply voltage vector and having a magnitude and a phase based on the command value. The command value generating part generates a second command value for operation of the charging control mode when the voltage of the storage battery falls below the over-discharge threshold.

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