利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

7 条记录 (耗时 0.016 秒)

    Systems and methods for characterizing impedance of an energy storage device
    3.
    发明授权
    Systems and methods for characterizing impedance of an energy storage device 有权

    公开(公告)号：US10393818B2

    公开(公告)日：2019-08-27

    申请号：US15368426

    申请日：2016-12-02

    申请人： The Trustees of Dartmouth College

    发明人： Eric Din ,  Christopher Schaef ,  Keith Moffat ,  Jason T. Stauth

    IPC分类号： H02J7/00 ,  H02M1/00 ,  G01R31/389

    摘要： A method for characterizing electrical impedance of an energy storage device includes the following steps: (a) controlling a first switching power converter to transfer electric power between a first energy storage device and a load, (b) controlling the first switching power converter to generate a sinusoidal perturbation on electric current flowing through the first energy storage device, (c) determining an alternating current (AC) component of the electric current flowing through the first energy storage device, (d) determining an AC component of voltage across the first energy storage device, and (e) determining a complex impedance of the first energy storage device based at least in part on the AC component of the electric current flowing through the first energy storage device and the AC component of the voltage across the first energy storage device.

    SYSTEMS AND METHODS FOR PROMOTING LOW LOSS IN PARALLEL CONDUCTORS AT HIGH FREQUENCIES
    4.
    发明申请
    SYSTEMS AND METHODS FOR PROMOTING LOW LOSS IN PARALLEL CONDUCTORS AT HIGH FREQUENCIES 审中-公开
    用于在高频下促进并行导线器中的低损耗的系统和方法

    公开(公告)号：US20150279549A1

    公开(公告)日：2015-10-01

    申请号：US14420234

    申请日：2013-08-02

    申请人： The Trustees Of Dartmouth College

    发明人： Charles R. Sullivan ,  Jason T. Stauth

    IPC分类号： H01F27/32 ,  H01F27/24

    CPC分类号： H01F27/323 ,  H01F27/24 ,  H01F27/2847 ,  H01F2027/2857

    摘要： A magnetic device includes a winding forming N turns, where N is an integer greater than or equal to one. The winding includes a stack of M foil conductors electrically coupled in parallel, where adjacent foil conductors of the stack of M foil conductors are separated from each other by a respective separation layer. M is an integer greater than one. Each separation layer has dimensions such that net magnetic flux in the separation layer is substantially zero when a changing current of equal magnitude flows through each of the M foil conductors. Another magnetic device includes M foil conductors electrically coupled in parallel. M is an integer greater than one. The M foil conductors are magnetically coupled. The other magnetic device further includes a current balancing transformer electrically coupled to the M foil conductors.

    摘要翻译： 磁性装置包括形成N圈的绕组，其中N是大于或等于1的整数。 绕组包括并联电耦合的M箔导体堆叠，其中M箔导体堆叠的相邻箔导体通过相应的分离层彼此分离。 M是大于1的整数。 每个分离层的尺寸使得当等量的变化的电流流过每个M箔导体时，分离层中的净磁通量基本为零。 另一磁性装置包括并联电耦合的M箔导体。 M是大于1的整数。 M箔导体磁耦合。 另一个磁性装置还包括电耦合到M箔导体的电流平衡变换器。

    System and method for reducing power loss in switched-capacitor power converters
    5.
    发明授权
    System and method for reducing power loss in switched-capacitor power converters 有权

    公开(公告)号：US09793794B2

    公开(公告)日：2017-10-17

    申请号：US15116780

    申请日：2015-02-04

    申请人： The Trustees of Dartmouth College

    发明人： Jason T. Stauth ,  Kapil Kesarwani

    IPC分类号： H02M3/07 ,  H02M1/08 ,  H02M1/00

    CPC分类号： H02M3/07 ,  H02M1/08 ,  H02M2001/0058 ,  H02M2003/072 ,  Y02B70/1491

    摘要： A system for reducing power loss in a switched-capacitor converter includes a first and second switched capacitor sub-converter each having a flying capacitor and a first, second, third, and fourth switching device. Each switching device is controlled by one of a first, second, third, and fourth clock signal. The first, second, third and fourth clock signals of the second switched capacitor sub-converter are inverted such that the first switched capacitor sub-converter operates during a first phase and the second switched capacitor converter operates during a second phase that is 1800 degrees out of phase from the first phase. The system also includes a resonant charge sharing portion for coupling a bottom-plate parasitic capacitance of the first switched capacitor sub-converter to a bottom-plate parasitic capacitance of the second switched capacitor converter.

    MICROFABRICATED MAGNETIC DEVICES AND ASSOCIATED METHODS
    7.
    发明申请
    MICROFABRICATED MAGNETIC DEVICES AND ASSOCIATED METHODS 审中-公开
    微晶磁性器件及相关方法

    公开(公告)号：US20130328165A1

    公开(公告)日：2013-12-12

    申请号：US13911900

    申请日：2013-06-06

    申请人： The Trustees of Dartmouth College

    发明人： Daniel V. Harburg ,  Charles R. Sullivan ,  Christopher G. Levey ,  Jason T. Stauth

    IPC分类号： H01L49/02 ,  H01F5/00

    CPC分类号： H01L28/10 ,  H01F5/003 ,  H01F17/0006 ,  H01F41/046 ,  H01F2017/0066 ,  H01L23/5227 ,  H01L2924/0002 ,  H01L2924/00

    摘要： A magnetic device includes a semiconductor wafer, a spiral winding, and a magnetic core. The spiral winding forms a plurality of turns and is disposed in a channel of the semiconductor wafer. The magnetic core is disposed at least partially in the channel of the semiconductor wafer and at least partially surrounds the plurality of turns. A width of the spiral winding optionally varies such that a respective width of an edge turn is smaller than a respective width of a middle turn. The channel is formed, for example, by a method including (1) patterning a resist layer on the semiconductor wafer using a mask including angularly extending compensation features, and (2) anistropically etching the semiconductor wafer to form the channel.

    摘要翻译： 磁性器件包括半导体晶片，螺旋绕组和磁芯。 螺旋绕组形成多个匝并且设置在半导体晶片的沟道中。 磁芯至少部分地设置在半导体晶片的通道中，并且至少部分地围绕多个匝。 螺旋绕组的宽度可选地变化，使得边缘匝的相应宽度小于中匝的相应宽度。 该通道例如通过包括（1）使用包括角度延伸的补偿特征的掩模在半导体晶片上构图抗蚀剂层的方法形成，以及（2）非理想地蚀刻半导体晶片以形成沟道。