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21 条记录 (耗时 0.015 秒)

    Multi-level active filter
    1.
    发明授权
    Multi-level active filter 失效
    多级有源滤波器

    公开(公告)号：US07405498B2

    公开(公告)日：2008-07-29

    申请号：US11435181

    申请日：2006-05-16

    申请人： Mukul Rastogi ,  Peter Hammond ,  Stan Simms

    发明人： Mukul Rastogi ,  Peter Hammond ,  Stan Simms

    IPC分类号： H02J1/02

    CPC分类号： H02J3/1857 ,  H02M7/49 ,  Y02E40/26

    摘要： A multi-phase active filter includes a group of power cells electrically connected in a three-phase configuration, a precharging circuit, and a controller that controls the voltage delivered to the plurality of power cells. Each power cell includes an inverter having a pair of direct current (DC) terminals, at least one capacitor electrically connected in parallel with the inverter, and an energy dissipating circuit that is electrically connected in parallel with the inverter. The energy dissipating circuit of each power cell self-regulates DC voltage within the cell.

    摘要翻译： 多相有源滤波器包括以三相配置电连接的一组功率单元，预充电电路和控制输送到多个功率单元的电压的控制器。 每个功率单元包括具有一对直流（DC）端子的逆变器，与逆变器并联电连接的至少一个电容器和与逆变器并联电连接的能量消耗电路。 每个功率单元的耗能电路自调节电池内的直流电压。

    INTEGRATED POWER CELL BYPASS ASSEMBLY AND POWER SUPPLY INCLUDING SAME
    2.
    发明申请
    INTEGRATED POWER CELL BYPASS ASSEMBLY AND POWER SUPPLY INCLUDING SAME 有权
    集成电源单元旁路组件和包括其中的电源

    公开(公告)号：US20080088186A1

    公开(公告)日：2008-04-17

    申请号：US11861608

    申请日：2007-09-26

    申请人： Peter Hammond

    发明人： Peter Hammond

    IPC分类号： H01H47/00

    CPC分类号： H02M7/49 ,  H01F29/02 ,  H02M2001/325 ,  Y10T307/826

    摘要： A bypass assembly. The bypass assembly includes a plurality of movable terminals configured to mate with fixed terminals of a power cell of a power supply. At least one of the movable terminals and its corresponding fixed terminal collectively form a contact when the at least one of the movable terminals and the corresponding fixed terminal are mated.

    摘要翻译： 旁路组件。 旁路组件包括被配置为与电源的功率单元的固定端子配合的多个可移动端子。 当可移动端子和对应的固定端子中的至少一个配合时，可移动端子及其对应的固定端子中的至少一个共同形成接触。

    Low and medium voltage PWM AC/DC power conversion method and apparatus
    3.
    发明授权
    Low and medium voltage PWM AC/DC power conversion method and apparatus 失效
    低压和中压PWM AC / DC电源转换方法及装置

    公开(公告)号：US5638263A

    公开(公告)日：1997-06-10

    申请号：US351822

    申请日：1994-12-08

    申请人： Kenneth Opal ,  Harry Abrams ,  Peter Hammond

    发明人： Kenneth Opal ,  Harry Abrams ,  Peter Hammond

    IPC分类号： H02M3/28 ,  H02M3/337 ,  H02M7/23 ,  H02M7/48 ,  H02M7/49 ,  H02M7/515

    CPC分类号： H02M3/285 ,  H02M3/337 ,  H02M7/23 ,  H02M7/49 ,  H02M2007/4835

    摘要： A power supply apparatus and method for supplying direct current power to low and medium voltage DC loads wherein a multi-phase transformer having multiple secondary windings provides multi-phase power to multiple power cells, each of which have a single DC output and are controllable by a modulation controller. The primary and secondary windings in the power transformer may be star- or mesh-connected; the secondary windings may be shifted in phase. Because the power cells can be connected in series, the maximum output voltage for each cell may be less than the maximum line-to-line voltage. The power cell output can have variable DC voltage and current which can be controlled using pulse-width modulation techniques. AC input power is converted to DC output power for each power output line. Output power modulation can be produced by interdigitating a selected number of carrier signals so that harmonic components reflected back to the input are attenuated.

    摘要翻译： 一种用于向低压和中压DC负载提供直流电力的电源装置和方法，其中具有多个次级绕组的多相变压器向多个功率单元提供多相功率，每个功率单元具有单个DC输出并且可由 调制控制器。 电源变压器中的初级和次级绕组可以是星形或网状连接的; 次级绕组可以相位移位。 由于功率单元可以串联连接，每个单元的最大输出电压可能小于最大线间电压。 功率单元输出可以具有可以使用脉冲宽度调制技术来控制的可变直流电压和电流。 交流输入功率转换为每个电力输出线的直流输出功率。 输出功率调制可以通过交叉选择数量的载波信号来产生，使得反射回输入的谐波分量被衰减。

    High frequency ultrasonic system
    4.
    发明授权
    High frequency ultrasonic system 失效
    高频超声波系统

    公开(公告)号：US5038808A

    公开(公告)日：1991-08-13

    申请号：US493808

    申请日：1990-03-15

    申请人： Peter Hammond ,  Kevin S. Schumacher

    发明人： Peter Hammond ,  Kevin S. Schumacher

    IPC分类号： B08B3/00 ,  B08B3/12 ,  H01L21/00 ,  H01L21/304

    CPC分类号： H01L21/67057 ,  B08B3/12 ,  Y10S134/902

    摘要： A high frequency ultrasonic system for sonically removing particles from substrates or wafers held in a carrier or carriers in a tank of liquid, such as DI water. A frame encompasses the tank and supports the transducer housing at an angle with respect to the tank bottom and also provides for horizontal movement between the sides of the tank. A transducer housing supports at least one transducer within the transducer housing. The transducer housing can be supported and moved at an angle with respect to the tank bottom.

    Method of treating cellulose material with CO2 or source thereof
    5.
    发明授权
    Method of treating cellulose material with CO2 or source thereof 有权
    用CO2或其来源处理纤维素材料的方法

    公开(公告)号：US09446985B2

    公开(公告)日：2016-09-20

    申请号：US13496031

    申请日：2010-09-17

    申请人： Peter Hammond

    发明人： Peter Hammond

    IPC分类号： C04B18/26 ,  C04B20/04 ,  C04B20/10 ,  C04B20/12 ,  B01J20/22 ,  C08K5/00 ,  C09K21/00 ,  C04B103/63

    CPC分类号： C04B18/26 ,  C04B20/104 ,  C04B20/107 ,  C04B20/12 ,  C04B2103/63 ,  Y02W30/97 ,  C04B18/24 ,  C04B20/04 ,  C04B20/1018

    摘要： The present invention relates to materials having improved and useful properties and to methods relating to the manufacture of said materials. In particular the present invention relates to a method of modifying the surface of a material, preferably a fibrous material, to enable carbon dioxide to be carried by the surface. The carbon dioxide may be bound to the surface in a reversible or irreversible manner. The method of treating the surface of a material comprises (a) contacting the surface of the material with a composition comprising an amino compound; and (b) contacting the surface of the material with a composition comprising carbon dioxide or a source thereof.

    摘要翻译： 本发明涉及具有改进和有用性质的材料以及与所述材料的制造有关的方法。 特别地，本发明涉及一种改变材料表面，优选纤维材料以使二氧化碳能够被表面承载的方法。 二氧化碳可以以可逆或不可逆的方式结合到表面。 处理材料表面的方法包括（a）使材料的表面与包含氨基化合物的组合物接触; 和（b）使材料的表面与包含二氧化碳或其源的组合物接触。

    Apparatus for in situ testing of a soil sample
    7.
    发明授权
    Apparatus for in situ testing of a soil sample 失效
    用于土壤样品原位测试的设备

    公开(公告)号：US07677330B2

    公开(公告)日：2010-03-16

    申请号：US11674892

    申请日：2007-02-14

    申请人： Peter Hammond

    发明人： Peter Hammond

    IPC分类号： E21B7/26 ,  E21B49/08

    CPC分类号： E21B49/00 ,  E02D1/025

    摘要： An apparatus for in situ testing of a soil sample includes an elongate body having a hollow core and an open end, an upper barrier or means for forming an upper barrier within soil across the hollow core, and means for forming a lower barrier within soil across the hollow core such that a sample zone is defined with the hollow core between the upper and lower barriers. A fluid supply means delivers a fluid to the sample zone; and a fluid exit means removes the fluid from the sample zone.

    摘要翻译： 用于土壤样品的原位测试的装置包括具有中空芯和开口端的细长体，用于在穿过中空芯的土壤中形成上部屏障的上部屏障或装置，以及用于在土壤中形成下部屏障的装置 所述中空芯使得样品区被所述上部和下部屏障之间的中空芯限定。 流体供应装置将流体输送到样品区域; 并且流体出口装置从样品区域去除流体。

    SOIL TESTING APPARATUS
    8.
    发明申请
    SOIL TESTING APPARATUS 失效
    土壤测试装置

    公开(公告)号：US20080190664A1

    公开(公告)日：2008-08-14

    申请号：US11674892

    申请日：2007-02-14

    申请人： Peter Hammond

    发明人： Peter Hammond

    IPC分类号： E21B7/26 ,  E21B49/08

    CPC分类号： E21B49/00 ,  E02D1/025

    摘要： An apparatus for in situ testing of a soil sample comprises an elongate body having a hollow core and an open end; an upper barrier or means for forming, in use, an upper barrier, within soil, across the hollow core; means for forming, in use, a lower barrier, within soil, across the hollow core such that a sample zone is defined with the hollow core between the upper and lower barriers; fluid supply means for delivery of a fluid to the sample zone; and fluid exit means for removal of the fluid from the sample zone.

    摘要翻译： 用于土壤样品的原位测试的装置包括具有中空芯和开口端的细长体; 用于在使用中在土壤内形成穿过中空芯的上部障碍物的上部屏障或装置; 用于在使用中在土壤中形成穿过中空芯的较低障碍物的装置，使得样品区域被定义为上部和下部屏障之间的中空芯; 用于将流体输送到样品区的流体供应装置; 以及用于从样品区域去除流体的流体出口装置。

    FIBER OPTIC RING FOR BYPASS SYSTEM IN MULTI-CELL POWER SUPPLY
    9.
    发明申请
    FIBER OPTIC RING FOR BYPASS SYSTEM IN MULTI-CELL POWER SUPPLY 有权
    用于多节电源旁路系统的光纤环

    公开(公告)号：US20160247641A1

    公开(公告)日：2016-08-25

    申请号：US15028952

    申请日：2013-09-18

    申请人： Paolo Malapelle ,  Vance McMichael ,  Peter Hammond

    发明人： Paolo Malapelle ,  Vance McMichael ,  Peter Hammond

    IPC分类号： H01H9/54

    CPC分类号： H01H9/54 ,  H02J3/46 ,  H02M1/32 ,  H02M5/458 ,  H02M7/003 ,  H02M7/49 ,  H02M7/493 ,  H02M2001/0003 ,  H02M2001/325

    摘要： Embodiments of a bypass system for a multi-cell power supply are provided. An aspect includes a plurality of power cells, each of the plurality of power cells comprising a respective bypass device comprising one or more contactors. Another aspect includes a central control. Yet another aspect includes a fiber optic ring comprising a plurality of fiber optic links that connect the respective bypass device in each of the plurality of power cells and the central control in series, wherein the fiber optic ring starts and ends at the central control, and the central control is configured to communicate with the one or more contactors in the plurality of bypass devices via the fiber optic ring.

    摘要翻译： 提供了用于多单元电源的旁路系统的实施例。 一个方面包括多个功率单元，多个功率单元中的每个功率单元包括包括一个或多个接触器的相应旁路装置。 另一方面包括中央控制。 另一方面包括一光纤环，其包括多个光纤链路，所述多个光纤链路将多个功率单元中的每个功率单元中的相应旁路装置和串联的中央控制器连接，其中光纤环在中央控制器处开始和结束，以及 中央控制器被配置为经由光纤环与多个旁路装置中的一个或多个接触器通信。