Power factor corrector with high power factor at low road or high mains voltage conditions
    1.
    发明授权
    Power factor corrector with high power factor at low road or high mains voltage conditions 有权
    功率因数校正器,在低路或高电源电压条件下具有高功率因数

    公开(公告)号:US09531257B2

    公开(公告)日:2016-12-27

    申请号:US13513992

    申请日:2010-12-28

    摘要: A power factor corrector raises power factor at low loads or high mains voltages by modifying the switch timing or the current received by the power converter. It achieves this by increasing the switch-on time of a control switch during the falling time so that the majority of the switch-on time during a mains period occurs during the falling time, to thereby control the current received by the converter to compensate for current received by the intermediate filter. Some embodiments may employ a feedback system to produce one or more error signals that modify the control signal used to control the operation of the converter. Various embodiments may also include additional stages that limit the compensation range of the error signal.

    摘要翻译: 功率因数校正器通过修改开关时序或电源转换器接收到的电流来提高低负载或高电源电压下的功率因数。 它通过在下降时间内增加控制开关的接通时间来实现这一点,使得在电源时段期间的大部分接通时间在下降时间期间发生,从而控制由转换器接收的电流来补偿 电流由中间滤波器接收。 一些实施例可以采用反馈系统来产生修改用于控制转换器的操作的控制信号的一个或多个误差信号。 各种实施例还可以包括限制误差信号的补偿范围的附加级。

    POWER FACTOR CORRECTOR WITH HIGH POWER FACTOR AT LOW LOAD OR HIGH MAINS VOLTAGE CONDITIONS
    2.
    发明申请
    POWER FACTOR CORRECTOR WITH HIGH POWER FACTOR AT LOW LOAD OR HIGH MAINS VOLTAGE CONDITIONS 有权
    功率因数校正器,具有低负载或高电压电压条件下的高功率因数

    公开(公告)号:US20120300517A1

    公开(公告)日:2012-11-29

    申请号:US13513992

    申请日:2010-12-28

    IPC分类号: H02M7/04

    摘要: A power factor corrector raises power factor at low loads or high mains voltages by modifying the switch timing or the current received by the power converter. It achieves this by increasing the switch-on time of a control switch during the falling time so that the majority of the switch-on time during a mains period occurs during the falling time, to thereby control the current received by the converter to compensate for current received by the intermediate filter. Some embodiments may employ a feedback system to produce one or more error signals that modify the control signal used to control the operation of the converter. Various embodiments may also include additional stages that limit the compensation range of the error signal.

    摘要翻译: 功率因数校正器通过修改开关时序或电源转换器接收到的电流来提高低负载或高电源电压下的功率因数。 它通过在下降时间内增加控制开关的接通时间来实现这一点,使得在电源时段期间的大部分接通时间在下降时间期间发生,从而控制由转换器接收的电流来补偿 电流由中间滤波器接收。 一些实施例可以采用反馈系统来产生修改用于控制转换器的操作的控制信号的一个或多个误差信号。 各种实施例还可以包括限制误差信号的补偿范围的附加级。

    Belt light
    3.
    外观设计

    公开(公告)号:USD1020017S1

    公开(公告)日:2024-03-26

    申请号:US29834373

    申请日:2022-04-11

    申请人: Cheng Zhang

    设计人: Cheng Zhang

    摘要: FIG. 1 is a perspective view of a belt light showing my new design;
    FIG. 2 is a front elevational view thereof;
    FIG. 3 is a rear elevational view thereof;
    FIG. 4 is a left side elevational view thereof;
    FIG. 5 is a right side elevational view thereof;
    FIG. 6 is a top plan view thereof; and,
    FIG. 7 is a bottom plan view thereof.
    The broken lines throughout the drawing figures depict portions of the belt light that form no part of the claimed design.

    DATA CENTRE SYSTEM AND METHOD FOR A DATA CENTRE TO PROVIDE SERVICE
    4.
    发明申请
    DATA CENTRE SYSTEM AND METHOD FOR A DATA CENTRE TO PROVIDE SERVICE 有权
    数据中心系统和数据中心提供服务的方法

    公开(公告)号:US20140258496A1

    公开(公告)日:2014-09-11

    申请号:US14346653

    申请日:2012-07-17

    IPC分类号: H04L12/803

    摘要: A data center system and a method for a data center to provide service are provided. The data center system comprises at least one first load balancing device, a plurality of second load balancing devices, and a plurality of servers. The first load balancing device is configured to transmit the first type network request to one of the plurality of second load balancing devices with a first scheduling strategy. The second load balancing device is configured to convert the first type network request to a second type network request, and to transmit the second type network request after the source address and destination address translation to one of the plurality of servers with a second scheduling strategy. The server is configured to generate a second type network response according to the second type network request and to return the second type network response to a corresponding second load balancing device.

    摘要翻译: 提供数据中心系统和数据中心提供服务的方法。 数据中心系统包括至少一个第一负载平衡装置,多个第二负载平衡装置和多个服务器。 第一负载平衡装置被配置为以第一调度策略将第一类型网络请求发送到多个第二负载平衡装置之一。 第二负载平衡装置被配置为将第一类型网络请求转换为第二类型网络请求,并且在源地址和目的地地址转换之后,以第二调度策略向多个服务器之一发送第二类型网络请求。 服务器被配置为根据第二类型网络请求生成第二类型网络响应,并且将第二类型网络响应返回到对应的第二负载平衡设备。

    Utilization of kraft lignin in phenol/formaldehyde bonding resins for OSB

    公开(公告)号:US08445563B2

    公开(公告)日:2013-05-21

    申请号:US12947703

    申请日:2010-11-16

    IPC分类号: C08L97/02 C08K5/13

    摘要: A resin for OSB comprising an aqueous resole reaction product of phenol, formaldehyde, alkaline metal hydroxide or carbonate, urea and a degraded lignin polymer having 35-65% solids, a pH of 8-13 and a viscosity 50-1000 centipoises. The phenol and formaldehyde are present in a molar ratio of 1.5 to 3.4 moles formaldehyde to 1 mole phenol and are 40 to 85% of the total solids added to the mixture. In one embodiment they are 50 to 75% of the total solids added to the mixture. The alkaline metal hydroxide or carbonate are 5 to 20% of the total solids added to the mixture. Urea is 5 to 35% of the total solids added to the mixture. The degraded lignin is 5 to 20% of the total solids added to the mixture.A method for making the resin and a product using the resin.

    Preparation of a carbon nanomaterial using a reverse microemulsion
    7.
    发明授权
    Preparation of a carbon nanomaterial using a reverse microemulsion 失效
    使用反相微乳液制备碳纳米材料

    公开(公告)号:US08318122B2

    公开(公告)日:2012-11-27

    申请号:US12248993

    申请日:2008-10-10

    申请人: Cheng Zhang Bing Zhou

    发明人: Cheng Zhang Bing Zhou

    IPC分类号: C01B31/02 B82B3/00

    CPC分类号: B82Y30/00 C01B32/05

    摘要: Powdered, amorphous carbon nanomaterials are formed from a carbon precursor in reverse microemulsion that includes organic solvent, surfactant and water. Methods for manufacturing amorphous, powdered carbon nanomaterials generally include steps of (1) forming a reverse microemulsion including at least one non-polar solvent, at least one surfactant, and at least one polar solvent, (2) adding at least one carbon precursor substance to the reverse microemulsion, (3) reacting the at least one carbon precursor substance so as to form an intermediate carbon nanomaterial, (4) separating the intermediate amorphous carbon nanomaterial from the reverse microemulsion, and (5) heating the intermediate amorphous carbon nanomaterial for a period of time so as to yield an amorphous, powdered carbon nanomaterial. Amorphous, powdered carbon nanomaterials manufactured according to the present disclosure typically have a surface area of at least 500 m2/g, a graphitic content of at least 25%, and a conductivity of at least 150 S/m.

    摘要翻译: 粉末状无定形碳纳米材料由反相微乳液中的碳前体形成,其包括有机溶剂,表面活性剂和水。 制造无定形粉末状碳纳米材料的方法通常包括以下步骤:(1)形成包含至少一种非极性溶剂,至少一种表面活性剂和至少一种极性溶剂的反相微乳液,(2)加入至少一种碳前体物质 (3)使至少一种碳前体物质反应以形成中间碳纳米材料,(4)将中间无定形碳纳米材料与反相微乳液分离,(5)将中间无定形碳纳米材料加热至 一段时间以产生无定形的粉末状碳纳米材料。 根据本公开制造的无定形粉末碳纳米材料通常具有至少500m 2 / g的表面积,至少25%的石墨含量和至少150S / m的电导率。

    Event-based battery monitor for implantable devices
    8.
    发明授权
    Event-based battery monitor for implantable devices 有权
    基于事件的可植入式电池监视器

    公开(公告)号:US08131365B2

    公开(公告)日:2012-03-06

    申请号:US12492416

    申请日:2009-06-26

    IPC分类号: A61N1/00

    摘要: A remaining charge capacity of a battery having an initial charge capacity is monitored. The battery powers a remote implantable medical device (IMD) that includes an active state, during which the remote IMD performs at least one function, and an inactive state, during which the remote IMD performs no functions. An active state charge consumption is computed based on stored parameters associated with an operational charge consumption for each function, and an inactive state charge consumption is computed based on a leakage current associated with the inactive state and a time the remote IMD is in the inactive state. The active state charge consumption and inactive state charge consumption are subtracted from the initial charge capacity to determine the remaining charge capacity.

    摘要翻译: 监视具有初始充电容量的电池的剩余充电容量。 电池为远程可植入医疗设备(IMD)供电,该远程可植入医疗设备(IMD)包括活动状态,在该状态期间,远程IMD执行至少一个功能,以及非活动状态,在该状态期间,远程IMD不执行功能。 基于与每个功能的操作电荷消耗相关联的存储参数来计算活动状态电荷消耗,并且基于与非活动状态相关联的泄漏电流和远程IMD处于非活动状态的时间来计算非活动状态电荷消耗 。 从初始充电容量中减去活动状态电荷消耗和无效状态电荷消耗,以确定剩余充电容量。

    System and method for managing wireless base station handoff information
    9.
    发明授权
    System and method for managing wireless base station handoff information 失效
    用于管理无线基站切换信息的系统和方法

    公开(公告)号:US08036173B2

    公开(公告)日:2011-10-11

    申请号:US11651307

    申请日:2007-01-09

    IPC分类号: H04Q1/00

    CPC分类号: H04W8/20 H04W36/08

    摘要: The present invention is directed to a system and method which base stations send informational messages to neighbor base stations when conditions change, so that the neighbor base stations can update its database to keep itself current on the parameters (including availability, traffic load, modulation scheme, etc.) to use in effecting efficient base station to base station handoffs. In one embodiment, the receiving base station marks the time of the received message from a neighbor base station and if a new updated message is not received within a time window then the receiving base station assumes that there is a problem with that neighbor.

    摘要翻译: 本发明涉及一种系统和方法,当条件改变时,基站向相邻基站发送信息消息,使得邻近基站可以更新其数据库以保持自身最新的参数(包括可用性,业务负载,调制方案 等)用于实现有效的基站到基站切换。 在一个实施例中,接收基站标记来自相邻基站的接收到的消息的时间,并且如果在时间窗口内没有接收到新的更新的消息,则接收基站假设该邻居存在问题。

    Hypertension diagnosis and therapy using pressure sensor
    10.
    发明授权
    Hypertension diagnosis and therapy using pressure sensor 有权
    高血压诊断和治疗使用压力传感器

    公开(公告)号:US08027724B2

    公开(公告)日:2011-09-27

    申请号:US11833435

    申请日:2007-08-03

    IPC分类号: A61N1/08

    摘要: An example relates to a method for sensing a pulmonary artery pressure (PAP) and providing a sensed PAP signal, detecting an abnormal blood pressure (BP) condition using information from the sensed PAP signal, delivering a pacing energy to a heart, and automatically altering at least one pacing characteristic in response to the detected abnormal BP condition. The detecting an abnormal BP condition can include detecting various forms of hypertension or hypotension. The automatically altering the at least one pacing characteristic can include automatically altering at least one of a pacing rate, a pacing waveform, an atriventricular (AV) delay, an interventricular (VV) delay, a pacing mode, or a pacing site. The method can also include delivering vagal nerve stimulation and automatically altering the vagal nerve stimulation in response to the detected abnormal BP condition. The detecting the abnormal BP condition can also include using a sensed auxiliary physiological parameter.

    摘要翻译: 一个例子涉及一种用于感测肺动脉压(PAP)并提供感测到的PAP信号的方法,使用来自感测到的PAP信号的信息检测异常血压(BP)状况,将起搏能量递送到心脏,并且自动改变 响应于检测到的异常BP状况的至少一个起搏特征。 检测异常BP病症可包括检测各种形式的高血压或低血压。 自动改变至少一个起搏特征可以包括自动改变起搏速率,起搏波形,房室(AV)延迟,心室间(VV)延迟,起搏模式或起搏部位中的至少一个。 该方法还可以包括递送迷走神经刺激并响应于检测到的异常BP状况自动改变迷走神经刺激。 检测异常BP状况还可以包括使用感测的辅助生理参数。