Startup control method of brushless DC motor
    1.
    发明申请
    Startup control method of brushless DC motor 有权
    无刷直流电机启动控制方法

    公开(公告)号:US20060132075A1

    公开(公告)日:2006-06-22

    申请号:US11183956

    申请日:2005-07-19

    IPC分类号: H02P7/06

    CPC分类号: H02P6/20 H02P6/182

    摘要: A startup control method of a BLDC motor is disclosed. The method can control the BLDC motor to prevent the generation of a transient current such that the vibration of the BLDC motor can be reduced at the startup stage and perform a stable conversion into a senseless operation mode such that the startup failure rate of the BLDC motor can be reduced. The startup control method includes commutating a current applied to stator windings according to a rotor position. The method of operating the BLDC motor includes a rotor position that is forcibly aligned and so that phase commutation is performed, a back-electromotive force (back- emf) is detected from a lead voltage of a phase of a voltage which is not applied thereto after performing phase commutation and a determination is performed as to whether the detected back-emf is in a rising interval. The lead voltage of the phase of the voltage which is not applied thereto is integrated, such that if the back-emf is in a rising interval and if an instance that the integration result is greater than a predetermined value a phase commutation time point is setand conversion into a senseless operation mode is performed if the back-emf detected from the lead voltage is in a stable interval, based on a frequency of the voltage applied to the stator winding.

    摘要翻译: 公开了一种BLDC电机的启动控制方法。 该方法可以控制BLDC电机,以防止产生瞬态电流,从而可以在启动阶段减小BLDC电机的振动,并执行稳定转换为无意义运行模式,使得BLDC电机的启动故障率 可以减少 启动控制方法包括根据转子位置对应用于定子绕组的电流进行换向。 操作BLDC电动机的方法包括被强制对准的转子位置,从而进行相位换向,从未施加到其上的电压的相位的引线电压检测反向电动势(反电动势) 在执行相位换向之后,执行关于所检测的反电动势是否处于上升间隔的确定。 未对其施加的电压的相位的引导电压被积分,使得如果反电动势处于上升间隔,并且如果积分结果大于预定值的情况,则设置相位换向时间点, 基于施加到定子绕组的电压的频率,如果从引线电压检测到的反电动势处于稳定的间隔,则执行转换为无意义操作模式。

    Convection part for electric oven range
    2.
    发明申请
    Convection part for electric oven range 有权
    电炉范围对流部件

    公开(公告)号:US20060027560A1

    公开(公告)日:2006-02-09

    申请号:US11199218

    申请日:2005-08-09

    IPC分类号: A21B1/22

    CPC分类号: F24C15/325 F24C15/322

    摘要: A convection part of an electric oven range is provided. In the convection part, a convection motor is provided, a convection fan is connected with the convection motor, and a fan housing encloses the convection fan and it includes at least one pair of discharge ducts in opposite directions.

    摘要翻译: 提供电炉范围的对流部分。 在对流部分中,设置有对流电动机,对流风扇与对流电动机连接,风扇壳体包围对流风扇,并且包括至少一对相反方向的排放管道。

    Micro-column electron beam apparatus
    4.
    发明申请
    Micro-column electron beam apparatus 失效
    微柱电子束装置

    公开(公告)号:US20060151716A1

    公开(公告)日:2006-07-13

    申请号:US11257244

    申请日:2005-10-24

    IPC分类号: G21G5/00

    摘要: Provided is a micro-column electron beam apparatus including: a base; an electron lens bracket on which an electron lens modulate can be fixed, mounted in a central portion of the base; an electron beam source tip module vertically disposed on the electron lens module; a pan spring plate stage module that is mounted over the base, supports the electron beam source tip module at a central portion thereof, and includes a three-coupling pan spring plate portion including first through third spring units that are coupled to the electron beam source tip module in three directions on a plane perpendicular to the vertical axis, which vertically passes the center of the electron beam source tip module, to elastically support the electron beam source tip module in three directions; a first piezoelectric actuator coupled to the pan spring plate stage module to move the electron beam source tip module along a first axis perpendicular to the vertical axis; and a second piezoelectric actuator coupled to the pan spring plate stage module to move the electron beam source tip module along a second axis perpendicular to the vertical axis and the first axis.

    摘要翻译: 本发明提供一种微柱电子束装置,包括:基底; 可以固定电子透镜调制的电子透镜支架,安装在基座的中心部分; 垂直设置在电子透镜模块上的电子束源头模块; 安装在基座上方的平板弹簧板台模块在其中心部分处支撑电子束源头模块,并且包括三联盘盘弹簧板部分,其包括耦合到电子束源的第一至第三弹簧单元 尖端模块在垂直于垂直轴线的平面上垂直通过电子束源头模块的中心,在三个方向弹性支撑电子束源头模块; 第一压电致动器,其联接到所述盘簧板模块以沿着垂直于所述垂直轴线的第一轴线移动所述电子束源尖端模块; 以及耦合到盘簧级模块的第二压电致动器,用于沿垂直于垂直轴线和第一轴线的第二轴线移动电子束源尖端模块。

    Micro column electron beam apparatus formed in low temperature co-fired ceramic substrate
    5.
    发明申请
    Micro column electron beam apparatus formed in low temperature co-fired ceramic substrate 失效
    微柱电子束装置形成于低温共烧陶瓷基片中

    公开(公告)号:US20060131752A1

    公开(公告)日:2006-06-22

    申请号:US11260025

    申请日:2005-10-24

    IPC分类号: H01L23/52

    摘要: A micro column electron beam apparatus having a reduced number of interconnections is provided. The micro column electron beam apparatus includes: a low temperature co-fired ceramic (LTCC) substrate; a plurality of deflector electrodes attached to a predetermined top portion of the LTCC substrate; a pad electrode placed at a top edge of the LTCC substrate and transmitting an external signal to the deflector electrodes; and a connection unit placed in the LTCC substrate and electrically connecting the deflector electrode and the pad electrode.

    摘要翻译: 提供了具有减少数量的互连的微型列电子束装置。 微柱电子束装置包括:低温共烧陶瓷(LTCC)基板; 多个偏转器电极,附着到LTCC衬底的预定顶部; 放置在LTCC衬底的顶部边缘处并将外部信号传输到偏转器电极的焊盘电极; 以及连接单元,其放置在LTCC基板中并电连接偏转器电极和焊盘电极。

    Micro stage using piezoelectric element
    6.
    发明申请
    Micro stage using piezoelectric element 有权
    微电极采用压电元件

    公开(公告)号:US20060131996A1

    公开(公告)日:2006-06-22

    申请号:US11231471

    申请日:2005-09-20

    IPC分类号: H02N2/00

    CPC分类号: H02N2/028 H01J2237/20264

    摘要: Provided is a micro stage comprising: a body having a vertically perforated through-hole passing through a central portion thereof; a bobbin including a tip portion with an electron emission tip embedded in the center thereof, and passing through the through-hole of the body to be moved in the through-hole along a first axis perpendicular to a vertical direction; a first piezoelectric element disposed on the body and lengthened when a voltage is applied thereto to push the bobbin in one direction along the first axis; a second piezoelectric element disposed on the body and lengthened when a voltage is applied thereto to push the bobbin in the other direction along the first axis; and an upper cover that is coupled to an upper portion of the body and has a through-hole, through which the bobbin passes and communicates with the through-hole of the body, wherein the bobbin can be positioned as desired along the first axis by adjusting the voltages applied to the first piezoelectric element and the second piezoelectric element. Accordingly, the emission tip can be exactly and stably positioned using only the movable piezoelectric elements.

    摘要翻译: 提供了一种微型台,包括:主体,其具有穿过其中心部分的垂直穿孔的通孔; 线轴,其包括具有嵌入其中心的电子发射尖端的尖端部分,并沿着垂直于垂直方向的第一轴线穿过所述通孔的待通孔; 第一压电元件,其设置在所述主体上,并且当施加电压时被延长以沿着所述第一轴线沿一个方向推动所述线轴; 第二压电元件,其设置在所述主体上并且当施加电压时被延长以沿着所述第一轴线沿另一方向推动所述线轴; 以及上盖,其联接到所述主体的上部并且具有通孔,所述筒管通过所述通孔,所述通孔与所述主体的所述通孔连通,其中所述线轴可根据需要沿着所述第一轴由 调整施加到第一压电元件和第二压电元件的电压。 因此,可以仅使用可动压电元件来精确且稳定地定位发射尖端。

    Tripod Type Constant Velocity Joint
    8.
    发明申请
    Tripod Type Constant Velocity Joint 有权
    三脚架型恒速接头

    公开(公告)号:US20080058107A1

    公开(公告)日:2008-03-06

    申请号:US11927601

    申请日:2007-10-29

    IPC分类号: F16D3/26

    摘要: A tripod type constant velocity joint comprises a housing having three track grooves which are defined at trisected positions of the housing along a circumferential direction and extend in a radial direction; a spider having three polyhedral trunnions which are projectedly formed at trisected positions of the spider along the circumferential direction to be respectively inserted into the track grooves and each of which has at least two polygonal surfaces; inner rollers a circumferential inner surface of each of which has a curved contour for surrounding the polyhedral trunnion; a plurality of needle rollers assembled to a circumferential outer surface of each inner roller; and outer rollers each formed to be rotated through the needle rollers, to be moved in an axial direction of the inner roller, and to be moved in an axial direction of the track groove along a guide surface of the housing.

    摘要翻译: 三脚架式等速万向节包括具有三个轨道槽的壳体,其沿着圆周方向限定在壳体的三维位置处并沿径向方向延伸; 具有三个多面耳轴的蜘蛛,其沿着圆周方向突出地形成在所述蜘蛛的三分位置处,以分别插入到所述轨道槽中,并且每个具有至少两个多边形表面; 内滚子,其每个的周向内表面具有用于围绕多面耳轴的弯曲轮廓; 组装到每个内辊的周向外表面上的多个滚针; 以及外辊,每一个都形成为通过滚针旋转,沿着内辊的轴向移动,并且沿着壳体的引导表面在轨道槽的轴向方向上移动。

    Method and system for transmitting voice data by using wireless LAN and bluetooth
    9.
    发明申请
    Method and system for transmitting voice data by using wireless LAN and bluetooth 审中-公开
    使用无线局域网和蓝牙传输语音数据的方法和系统

    公开(公告)号:US20080026695A1

    公开(公告)日:2008-01-31

    申请号:US11878938

    申请日:2007-07-27

    IPC分类号: H04B7/00 H04Q7/20

    CPC分类号: H04W16/14 H04W88/06 H04W88/10

    摘要: Embodiments of methods and systems of the application can transmit data (e.g., voice) using a wireless LAN and a Bluetooth. One system embodiment can include a terminal device, an AP (access point) for communicating with the terminal device according to a first (e.g., wireless LAN) protocol by using a first frequency band among multiple frequency bands of a prescribed frequency band (e.g., ISM frequency band) and a headset for communicating with the terminal device according to a second (e.g., Bluetooth) protocol by using at least one frequency band of remaining frequency bands by excepting the first frequency band.

    摘要翻译: 应用的方法和系统的实施例可以使用无线LAN和蓝牙传输数据(例如,语音)。 一个系统实施例可以包括终端设备,用于根据第一(例如无线LAN)协议与终端设备进行通信的AP(接入点),该协议通过使用规定频带的多个频带中的第一频带(例如, ISM频带)和耳机,用于通过除了第一频带之外使用剩余频带的至少一个频带,根据第二(例如,蓝牙)协议与终端设备进行通信。

    Chip on board package and manufacturing method thereof
    10.
    发明申请
    Chip on board package and manufacturing method thereof 有权
    船上芯片封装及其制造方法

    公开(公告)号:US20070176198A1

    公开(公告)日:2007-08-02

    申请号:US11709154

    申请日:2007-02-22

    IPC分类号: H01L33/00 H01L21/00

    摘要: A Chip on Board (COB) package which can reduce the manufacturing costs by using a general PCB as a substrate, increase a heat radiation effect from a light source, thereby realizing a high quality light source at low costs, and a manufacturing method thereof. The COB package includes a board-like substrate with a circuit printed on a surface thereof, the substrate having a through hole. The package also includes a light source positioned in the through hole and including a submount and a dome structure made of resin, covering and fixing the light source to the substrate. The invention allows a good heat radiation effect by using the general PCB as the substrate, enabling manufacture of a high quality COB package at low costs. This in turn improves emission efficiency of the light source, ultimately realizing a high quality light source.

    摘要翻译: 通过使用通用PCB作为基板可以降低制造成本的芯片上(COB)封装,增加了来自光源的散热效果,从而以低成本实现高质量的光源及其制造方法。 COB封装包括具有印刷在其表面上的电路的板状衬底,该衬底具有通孔。 封装还包括位于通孔中的光源,并且包括底座和由树脂制成的圆顶结构,将光源覆盖并固定到基板。 本发明通过使用通用PCB作为基板来实现良好的散热效果,能够以低成本制造高质量的COB封装。 这又提高了光源的发光效率,最终实现了高质量的光源。