公开(公告)号：US09948182B2

公开(公告)日：2018-04-17

申请号：US14856846

申请日：2015-09-17

Applicant: U.S. Army Research Laboratory ATTN: RDRL-LOC-I

Inventor： Nathan S. Lazarus ,  Sarah S. Bedair

IPC: H02M3/158

CPC classification number: H02M3/158 ,  H02M3/335

Abstract: A DC-DC power converter having a power source, a load, and a transmission line terminated at one end. A first switch is electrically connected between the power source and a second end of the transmission line and movable between an open and a closed position. A second switch is electrically connected between the second end of the transmission line and the load and is movable between an open and a closed position. A switch control circuit switches the first and second switches between their respective open and closed positions. A pulse forming network forms the transmission line to store the charge in the transmission line.

公开(公告)号：US10038376B2

公开(公告)日：2018-07-31

申请号：US14818336

申请日：2015-08-05

Applicant: U.S. Army Research Laboratory ATTN: RDRL-LOC-I

Inventor： Nathan S. Lazarus ,  Sarah S. Bedair

IPC: H02M3/158 ,  H02M1/00 ,  H02M7/48

CPC classification number: H02M3/158 ,  H02M2001/0058 ,  H02M2001/0064 ,  H02M2007/4818 ,  Y02B70/1441 ,  Y02B70/1491

Abstract: A DC-DC power converter having a power source, a load, and a transmission line terminated at one end. A first switch is electrically connected between the power source and the second end of the transmission line. A second switch is electrically connected between the second end of the transmission line and the load and both switches are movable between an open and a closed position. A switch control circuit switches the first and second electric switches between their open and closed positions at a selected high frequency. A plurality of variable impedance elements are electrically connected to the transmission line at spaced intervals while an impedance control circuit is electrically connected to the variable impedance elements to vary the impedance of the impedance elements and thereby vary the voltage applied to the load.

公开(公告)号：US20170040893A1

公开(公告)日：2017-02-09

申请号：US14818336

申请日：2015-08-05

Applicant: U.S. Army Research Laboratory ATTN: RDRL-LOC-I

Inventor： Nathan S. Lazarus ,  Sarah S. Bedair

IPC: H02M3/158

CPC classification number: H02M3/158 ,  H02M2001/0058 ,  H02M2001/0064 ,  H02M2007/4818 ,  Y02B70/1441 ,  Y02B70/1491

Abstract: A DC-DC power converter having a power source, a load, and a transmission line terminated at one end. A first switch is electrically connected between the power source and the second end of the transmission line. A second switch is electrically connected between the second end of the transmission line and the load and both switches are movable between an open and a closed position. A switch control circuit switches the first and second electric switches between their open and closed positions at a selected high frequency. A plurality of variable impedance elements are electrically connected to the transmission line at spaced intervals while an impedance control circuit is electrically connected to the variable impedance elements to vary the impedance of the impedance elements and thereby vary the voltage applied to the load.

Abstract translation: 一种DC-DC电力转换器，其具有在一端终止的电源，负载和传输线。 第一开关电连接在电源和传输线的第二端之间。 第二开关电连接在传输线的第二端和负载之间，并且两个开关可在打开和关闭位置之间移动。 开关控制电路以选定的高频率在其打开和关闭位置之间切换第一和第二电开关。 多个可变阻抗元件以间隔的间隔电连接到传输线，同时阻抗控制电路电连接到可变阻抗元件以改变阻抗元件的阻抗，从而改变施加到负载的电压。

公开(公告)号：US10553342B2

公开(公告)日：2020-02-04

申请号：US15209115

申请日：2016-07-13

Applicant: U.S. Army Research Laboratory ATTN: RDRL-LOC-I

Inventor： Nathan S. Lazarus ,  Christopher D. Meyer

IPC: H01F1/44 ,  H01F27/02 ,  H01F27/24

Abstract: A deformable inductive device includes an elastomer material having at least one deformable electrode and a liquid magnetic core formed in the elastomer material and containing a magnetic liquid. Depending on the device's configuration, the deformable element may be embedded in, attached to, or in close proximity with the liquid magnetic core. In some embodiments, the deformable inductive device may be configured as an inductor, solenoid, or transformer and the deformable electrode is at least partially embedded in the liquid magnetic core, for instance. In another embodiment, the deformable inductive device may be configured as part of a wireless power transfer system which includes a coil and a magnetic backplane having the liquid magnetic core with the coil being attached to or in close proximity to the magnetic backplane.

公开(公告)号：US20190242024A1

公开(公告)日：2019-08-08

申请号：US16209147

申请日：2018-12-04

Applicant: U.S. Army Research Laboratory ATTN: RDRL-LOC-I

Inventor： Nathan S. Lazarus ,  Kristin E. Angel

IPC: C25D5/12 ,  C25D7/12 ,  C25D3/12 ,  B29C64/336 ,  B29C64/118 ,  B29C64/112 ,  B29C64/295

CPC classification number: C25D5/12 ,  B29C64/112 ,  B29C64/118 ,  B29C64/295 ,  B29C64/336 ,  C25D3/12 ,  C25D7/123

Abstract: Systems, methods, architectures, mechanisms and/or apparatus configured to provide selective electroplating of a fused deposition modeling (FDM) printed article without the use of additional intermediate steps.

公开(公告)号：US20180019049A1

公开(公告)日：2018-01-18

申请号：US15209115

申请日：2016-07-13

Applicant: U.S. Army Research Laboratory ATTN: RDRL-LOC-I

Inventor： Nathan S. Lazarus ,  Christopher D. Meyer

IPC: H01F27/28 ,  H01F27/24 ,  H01F27/02

CPC classification number: H01F27/022 ,  H01F1/44 ,  H01F27/24

Abstract: A deformable inductive device includes an elastomer material having at least one deformable electrode and a liquid magnetic core formed in the elastomer material and containing a magnetic liquid. Depending on the device's configuration, the deformable element may be embedded in, attached to, or in close proximity with the liquid magnetic core. In some embodiments, the deformable inductive device may be configured as an inductor, solenoid, or transformer and the deformable electrode is at least partially embedded in the liquid magnetic core, for instance. In another embodiment, the deformable inductive device may be configured as part of a wireless power transfer system which includes a coil and a magnetic backplane having the liquid magnetic core with the coil being attached to or in close proximity to the magnetic backplane.

公开(公告)号：US20170323714A1

公开(公告)日：2017-11-09

申请号：US15144995

申请日：2016-05-03

Applicant: U.S. Army Research Laboratory ATTN: RDRL-LOC-I

Inventor： Nathan S. Lazarus ,  Christopher D. Meyer ,  Iain M. Kierzewski

IPC: H01F3/08 ,  H01F5/00 ,  H01F38/14 ,  H01F41/02

CPC classification number: H01F3/08 ,  H01F1/26 ,  H01F5/00 ,  H01F27/365 ,  H01F38/14

Abstract: A deformable inductive device includes a magnetic core formed of an elastomer material having magnetic particles dispersed in it and at least one deformable electrode. Depending on the device's configuration, the deformable element may be embedded in, attached to, or in close proximity with the magnetic core. In some embodiments, the deformable inductive device may be configured as an inductor, solenoid, or transformer and the deformable electrode is at least partially embedded in the magnetic core, for instance. In another embodiment, the deformable inductive device may be configured as part of a wireless power transfer system which includes a coil and a magnetic backplane having the magnetic core with the coil being attached to or in close proximity to the magnetic backplane.

公开(公告)号：US20180166220A1

公开(公告)日：2018-06-14

申请号：US15378685

申请日：2016-12-14

Applicant: U.S. Army Research Laboratory ATTN: RDRL-LOC-I

Inventor： Nathan S. Lazarus ,  Christopher P. Migliaccio ,  Iain M. Kierzewski

IPC: H01G7/04

CPC classification number: H01G7/04

Abstract: A variable capacitor includes a substrate; a plurality of electrodes on the substrate; a phase change material on the plurality of electrodes; and a thermo-modifying element adjacent to the phase change material, wherein the thermo-modifying element changes a temperature of the phase change material. The change in temperature of the phase change material may change a capacitance between the plurality of electrodes. The thermo-modifying element may be integrated into the substrate. The thermo-modifying element may include a heater that raises a temperature of the phase change material to change from a solid state to a liquid state. The thermo-modifying element may include a layer of metal adjacent to the substrate, and wherein when electrical current flows through the layer of metal, the layer of metal forms a resistive heater and raises a temperature of the phase change material to change from a solid state to a liquid state.

公开(公告)号：US20150302982A1

公开(公告)日：2015-10-22

申请号：US14016284

申请日：2013-09-03

Applicant: U.S. Army Research Laboratory ATTN: RDRL-LOC-I

Inventor： Christopher D. Meyer ,  Nathan S. Lazarus

IPC: H01F27/40 ,  H01F29/00

CPC classification number: H01F21/06

Abstract: Embodiments of the present invention provide a tunable inductor having a magnetic core which has an air gap. In order to vary the inductance of the inductor, the inductor includes a tuner that is moveable relative to the magnetic core in the vicinity of the air gap. An actuator is attached to the tuner which, upon actuation, moves the tuner relative to the magnetic core to thereby vary the spacing between the tuner and the core in the vicinity of the air gap. The variation of the spacing between the tuner and the magnetic core varies the effective air gap of the overall inductor in the desired fashion.

Abstract translation: 本发明的实施例提供一种具有具有气隙的磁芯的可调电感器。 为了改变电感器的电感，电感器包括可在气隙附近相对于磁芯移动的调谐器。 致动器附接到调谐器，其在致动时使调谐器相对于磁芯移动，从而改变调谐器和芯之间在气隙附近的间隔。 调谐器和磁芯之间的间距的变化以期望的方式改变整个电感器的有效气隙。