公开(公告)号：US12119760B1

公开(公告)日：2024-10-15

申请号：US17503300

申请日：2021-10-16

Applicant: The Charles Stark Draper Laboratory, Inc.

Inventor： Louis Beryl Kratchman ,  James A. Bickford ,  Kasey Russell ,  Paul A. Ward

IPC: G01M7/02 ,  H02N1/00 ,  H02P31/00

CPC classification number: H02N1/002 ,  H02P31/00

Abstract: A control circuit for an electrostatic machine includes a current source or sink, an inductor, a switching network coupled between the current source or sink and the electrostatic machine, and between the inductor and the electrostatic machine. A controller is configured to automatically cause the switching network to connect the current source or sink to the electrostatic machine each half-cycle of a periodically alternating polarity. At each polarity alternation, the electrostatic machine is isolated from the current source or sink for a first period of time. At each polarity alternation, the inductor is connected to the electrostatic machine for a second period of time while the electrostatic machine is isolated from the current source or sink, and then disconnect the inductor from the electrostatic machine.

公开(公告)号：US20240204693A1

公开(公告)日：2024-06-20

申请号：US18591610

申请日：2024-02-29

Applicant: Huawei Technologies Co., Ltd.

Inventor： Fengpei Sun ,  Zhihong Feng ,  Jinghui Xu ,  Xiaoshi Dong ,  Jianbo Sun

IPC: H02N1/00 ,  G02B26/08

CPC classification number: H02N1/002 ,  G02B26/0833

Abstract: An actuating member and a related device are provided, and may be applied to an optical communication scenario such as OXC, VOA, or WSS, or the field of projection display. A first fastening structure (11), a second fastening structure (12), and a third fastening structure (13) are fastened to a substrate. A rotating frame (40) is connected to the first fastening structure (11) by using a first cantilever beam (21), and a first comb (31) is formed on the rotating frame (40). The first comb (31) is arranged in a staggered manner with a second comb (32), and the second comb (32) is formed on the second fastening structure (12). A rotating platform (60) is located at an inner side of the rotating frame (40), the rotating platform (60) is connected to the rotating frame (40) by using a second cantilever beam (22).

公开(公告)号：US20240128894A1

公开(公告)日：2024-04-18

申请号：US18348010

申请日：2023-07-06

Applicant: C-Motive Technologies, Inc.

Inventor： Justin Kyle Reed ,  Ryan Knippel ,  William D. Butrymowicz ,  Graham T. Reitz ,  Matthew Maroon ,  Baoyun Ge ,  Daniel Colin Ludois ,  Aditya Nandakumar Ghule ,  Serge Kuro ,  Kevin Frankforter

IPC: H02N1/00 ,  H02N2/12 ,  H02N2/14

CPC classification number: H02N1/006 ,  H02N1/002 ,  H02N1/004 ,  H02N2/12 ,  H02N2/14

Abstract: An example electrostatic machine includes a number of stator plates, each having a stator electrode and rotationally fixed to a housing, a shaft at least partially defined within the housing and configured to rotate about an axis, and a number of rotor plates, each having a rotor electrode and rotational fixed to the shaft. The electrostatic machine includes a dielectric fluid disposed in the housing, and that fills a gap between the stator plates and the rotor plates. The electrostatic machine includes a seal associated with the shaft, where the seal includes a material compatible with the dielectric fluid.

公开(公告)号：US11848625B2

公开(公告)日：2023-12-19

申请号：US17619328

申请日：2020-06-17

Applicant: STRAWB Inc.

Inventor： Keiji Saneyoshi ,  Kazuo Okuda

IPC: H02N1/08 ,  H02N1/00

CPC classification number: H02N1/002 ,  H02N1/08

Abstract: The present invention is directed to providing an electrostatic actuator that can generate a large electrostatic force even if composed of a ribbon-shaped electrode film.
In an electrostatic actuator 10, 20 including a ribbon-shaped first electrode film 11 and a ribbon-shaped second electrode film 12, a plurality of first electrodes 1 formed of the first electrode film 11 and a plurality of second electrodes 2 formed of the second electrode film 12 are folded and laminated between one end 13 and the other end 14 of the electrostatic actuator 10, 20, and the plurality of first electrodes 1 include a pair of end electrodes 1a that are adjacent to each other in a direction in which the first electrode film 11 extends in a ribbon shape and are respectively positioned at the one end 13 and the other end 14 when laminated and at least one intermediate electrode 1b that is positioned between the end electrodes 1a when laminated.

公开(公告)号：US20230163700A1

公开(公告)日：2023-05-25

申请号：US17967082

申请日：2022-10-17

Applicant: Hyundai Motor Company ,  Kia Corporation ,  Korea Advanced Institute of Science and Technology

Inventor： Kyoung Jin CHANG ,  Dong Chul PARK ,  Ki Uk KYUNG ,  Hyun Woo KIM ,  Min Ki KIM ,  Jong Seok NAM ,  Ji Hyeong MA

IPC: H02N1/00

CPC classification number: H02N1/002

Abstract: A flexible actuator for curved surfaces and a control method thereof is used for curved surfaces and generates high vibration using a relatively low voltage.

公开(公告)号：US20170050217A1

公开(公告)日：2017-02-23

申请号：US15345741

申请日：2016-11-08

Applicant: Texas Instruments Incorporated

Inventor： PETER B. JOHNSON ,  IRA OAKTREE WYGANT

IPC: B06B1/02 ,  A61B8/00 ,  H02N1/00

CPC classification number: B06B1/0292 ,  A61B8/4483 ,  B06B2201/76 ,  H02N1/002 ,  H02N1/006 ,  H02N1/008

Abstract: A Capacitive Micromachined Ultrasonic Transducer (CMUT) device includes at least one CMUT cell including a first substrate having a top side including a patterned dielectric layer thereon including a thick and a thin dielectric region. A membrane layer is bonded on the thick dielectric region and over the thin dielectric region to provide a movable membrane over a micro-electro-mechanical system (MEMS) cavity. A through-substrate via (TSV) includes a dielectric liner which extends from a bottom side of the first substrate to a top surface of the membrane layer. A top side metal layer includes a first portion over the TSV, over the movable membrane, and coupling the TSV to the movable membrane. A patterned metal layer is on the bottom side surface of the first substrate including a first patterned layer portion contacting the bottom side of the first substrate lateral to the TSV.

Abstract translation: 电容式微加工超声波传感器（CMUT）装置包括至少一个CMUT单元，该CMUT单元包括第一基板，该第一基板的顶侧包括在其上的图案化的介电层，其包括厚和薄的电介质区域。 膜层结合在厚电介质区域和薄介电区域上，以在微机电系统（MEMS）空腔上提供可移动膜。 贯穿衬底通孔（TSV）包括从第一衬底的底侧延伸到膜层的顶表面的电介质衬垫。 顶侧金属层包括在TSV上方的第一部分，在可移动膜上方，并且将TSV耦合到可移动膜。 图案化的金属层在第一基板的底侧表面上，包括与TSV横向的第一基板的底侧接触的第一图案化层部分。

公开(公告)号：US09548634B2

公开(公告)日：2017-01-17

申请号：US14420516

申请日：2013-07-25

Applicant: Japan Science and Technology Agency ,  The University of York

Inventor： Atsufumi Hirohata

IPC: H02N1/00 ,  H02N15/00 ,  H02K1/27 ,  H01L29/66 ,  H02K1/12

CPC classification number: H02K1/27 ,  H01L29/66984 ,  H02K1/12 ,  H02N1/002 ,  H02N15/00

Abstract: A spin rotary member includes a substrate, a spin injector made of a ferromagnetic material magnetized in a substrate in-plane direction, and provided on the substrate, a spin rotor made of a ferromagnetic material having a magnetic moment rotatable in the substrate in-plane direction, and provided on the substrate, being separated from the spin injector, a channel part made of a non-magnetic material, arranged between the spin injector and the spin rotor, and bonded with the spin injector and the spin rotor directly or through an insulating layer, and a spin rotation control part configured to control a rotation direction of spin of the channel part.

Abstract translation: 旋转旋转构件包括基板，由在基板的面内方向上被磁化的铁磁材料制成的自旋注入器，并且设置在基板上，由铁磁材料制成的自旋转子，所述铁磁材料具有可在基板内平面旋转的磁矩 并且设置在基板上，与旋转喷射器分离，由非磁性材料制成的通道部分，布置在旋转喷射器和旋转转子之间，并直接或通过旋转喷嘴和旋转旋转转子结合 绝缘层，以及配置为控制通道部的旋转的旋转方向的旋转旋转控制部。

公开(公告)号：US20160322918A1

公开(公告)日：2016-11-03

申请号：US14699775

申请日：2015-04-29

Applicant: General Electric Company

Inventor： Qin Chen ,  Manoj Ramprasad Shah ,  Joo Han Kim ,  Stefan Grubic ,  Nathaniel Benedict Hawes

IPC: H02N1/00 ,  H01B3/24

CPC classification number: H02N1/002 ,  H01B3/24

Abstract: A dielectric fluid includes a first liquid having first dielectric constant and conductivity values. The dielectric fluid also includes a second liquid having second dielectric constant and conductivity values. The first dielectric constant value is greater than the second dielectric constant value and the second electrical conductivity value is less than the first electrical conductivity value. The first and second liquids form an immiscible mixture that has third dielectric constant and conductivity values between the first and second dielectric constant values and the first and second electrical conductivity values, respectively. The first liquid forms a high conductivity phase representative of the first conductivity value, and the second liquid forms a low conductivity phase representative of the second conductivity value. The low conductivity phase is continuous the high conductivity phase is a plurality of droplets non-homogeneously dispersed within, and separated by, the continuous low conductivity phase.

Abstract translation: 介电流体包括具有第一介电常数和电导率值的第一液体。 电介质流体还包括具有第二介电常数和电导率值的第二液体。 第一介电常数值大于第二介电常数值，第二导电率值小于第一导电率值。 第一和第二液体分别形成第一和第二介电常数值和第一和第二电导率值之间的第三介电常数和电导率值的不混溶混合物。 第一液体形成表示第一电导率值的高导电率相位，第二液体形成代表第二电导率值的低电导率相位。 低导电相是连续的，高导电相是不均匀分散在连续低电导率相中并由连续低电导率相分隔的多个液滴。

公开(公告)号：US20160218644A1

公开(公告)日：2016-07-28

申请号：US15091359

申请日：2016-04-05

Applicant: Richard Banduric

Inventor： Richard Banduric

IPC: H02N11/00

CPC classification number: H02N11/00 ,  B64G1/409 ,  H02N1/002 ,  H02N1/008 ,  H02N11/008

Abstract: Systems and methods of interacting complex electric fields and static electric fields to effect motion are disclosed. An example method includes producing an action force having a reaction force perpendicular to the action force by interacting a relative velocity electric field based on charge of a moving first charged object and a static charge on a second charged object in a different inertial frame of reference. Another example method includes producing an action force having a reaction force perpendicular to the action force by interacting an acceleration generated electric field based on acceleration of a first charged object and a static charge on a second charged object in a different inertial frame of reference. Another example method includes producing an action force having a reaction force perpendicular to the action force by interacting a scalar electric potential and static electric field.

Abstract translation: 公开了复杂电场和静电场相互作用来实现运动的系统和方法。 示例性方法包括通过基于移动的第一带电对象的电荷和在不同惯性参考系的第二带电对象上的静电荷相互作用相对速度电场来产生具有与作用力垂直的反作用力的作用力。 另一个示例性方法包括通过基于第一带电物体的加速度和不同惯性参考系的第二带电物体上的静电荷相互作用加速度产生的电场来产生具有垂直于作用力的反作用力的作用力。 另一个示例性方法包括通过相互作用标量电位和静电场来产生具有与作用力垂直的反作用力的作用力。

公开(公告)号：US09391541B2

公开(公告)日：2016-07-12

申请号：US13634110

申请日：2011-03-10

Applicant: Yuval Cohen ,  Shay Kaplan ,  Daniel Lewin ,  Meir Ben Simon ,  Eric Andreas Haber

Inventor： Yuval Cohen ,  Shay Kaplan ,  Daniel Lewin ,  Meir Ben Simon ,  Eric Andreas Haber

IPC: H02N1/00 ,  H04R19/02 ,  H02P31/00 ,  H04R3/00 ,  H04R29/00 ,  H04R1/40 ,  H04R1/00 ,  H04R19/00

CPC classification number: H02P31/00 ,  H02N1/002 ,  H04R1/005 ,  H04R1/403 ,  H04R3/002 ,  H04R3/007 ,  H04R3/12 ,  H04R19/005 ,  H04R19/02 ,  H04R29/002 ,  H04R2201/003 ,  H04R2201/401 ,  Y10T29/49002

Abstract: An actuator apparatus is provided that includes at least one actuator device, each actuator device including an array of moving elements, each individual moving element is operative to be constrained to travel alternately back and forth along a respective axis responsive to an individual first electrostatic force operative thereupon, wherein each moving element has an at-rest position and is driven away from its at rest position solely by the first electrostatic force; and at least one electrode operative to apply a controlled temporal sequence of potential differences with at least one individual moving element from among the array of moving elements thereby to selectably generate the first electrostatic force; and a controller operative to receive the digital input signal and to control at least one of the at least one electrode and the individual moving element to apply the sequence of potential differences.

Abstract translation: 提供一种致动器装置，其包括至少一个致动器装置，每个致动器装置包括移动元件阵列，每个单独的移动元件可操作地被约束以响应于单独的第一静电力操作沿相应的轴线交替地前后移动 因此，其中每个移动元件具有静止位置，并且仅通过第一静电力而被驱动离开其静止位置; 以及至少一个电极，其操作以从所述移动元件阵列中的至少一个单独的移动元件施加电位差的受控时间序列，从而可选地产生所述第一静电力; 以及控制器，用于接收所述数字输入信号并且控制所述至少一个电极和所述单个移动元件中的至少一个以施加所述电位差序列。