Bearing assembly with wear-resistant bearing surfaces
    71.
    发明申请
    Bearing assembly with wear-resistant bearing surfaces 审中-公开
    轴承总成具有耐磨轴承面

    公开(公告)号:US20050152627A1

    公开(公告)日:2005-07-14

    申请号:US10892074

    申请日:2004-07-15

    摘要: A bearing assembly includes a tube (30) axially defining an inner hole (32), a radial bearing (10) fixed in the inner hole of the tube and having an inner bearing surface concentric with the inner hole, and a shaft (20) pivotably received the inner hole. The shaft comprises a contact portion (22, 220) circumferentially formed at an outer periphery thereof confronting with the inner bearing surface of the bearing. The contact portion comprises an outer bearing surface being configured to have a substantially same abrasive resistance with the bearing surface to reduce wear thereon.

    摘要翻译: 轴承组件包括轴向地限定内孔(32)的管(30),固定在管的内孔中并具有与内孔同心的内支承表面的径向轴承(10)和轴(20) 可枢转地接收内孔。 轴包括在与轴承的内轴承表面相对的外周处周向形成的接触部分(22,220)。 接触部分包括外部支承表面,其被配置为具有与支承表面基本上相同的耐磨性以减少其上的磨损。

    Rubber extruder
    72.
    发明申请
    Rubber extruder 失效
    橡胶挤出机

    公开(公告)号:US20050100624A1

    公开(公告)日:2005-05-12

    申请号:US10347232

    申请日:2003-01-21

    IPC分类号: B29C47/00 B29C47/54

    摘要: A rubber extruder includes a barrel, a screw rod extending into the barrel, a threaded member threadedly engaging the screw rod and rotatable relative to the screw rod, a limiting member for limiting rotation of the screw rod upon rotation of the threaded member so as to permit axial movement of the screw rod, and a driving unit for rotating the threaded member.

    摘要翻译: 橡胶挤出机包括筒体,延伸到筒体中的螺杆,螺纹构件,其螺纹地接合螺杆并且可相对于螺杆旋转;限制构件,用于限制螺杆在螺纹构件旋转时的旋转,从而 允许螺杆的轴向移动,以及用于旋转螺纹构件的驱动单元。

    Clip for mounting heat sink to circuit board
    73.
    发明申请
    Clip for mounting heat sink to circuit board 失效
    用于将散热片安装到电路板的夹子

    公开(公告)号:US20050068742A1

    公开(公告)日:2005-03-31

    申请号:US10900767

    申请日:2004-07-27

    IPC分类号: H01L23/40 H01L23/467 H05K7/20

    摘要: A clip (10) includes a body (12) including spaced first and second end portions, a first locking part (20) extending from the first end portion for attaching to a heat sink (80), and a second locking part (30) extending from the second end portion for attaching to a circuit board (50). The first locking part includes a pin (21), a pair of C-shaped spring portions (22), and a compressible mounting portion (23). The spring portions and the mounting portion are for cooperatively sandwiching the heat sink therebetween. The second locking part includes a taper head (30) and a neck (31). The second locking part engages with the circuit board in the neck. The first locking part offsets from the second locking part in a vertical direction. The heat sink of which the mounting holes offset from the mounting holes of the circuit board is therefore fitable to the circuit board.

    摘要翻译: 夹具(10)包括主体(12),其包括间隔开的第一和第二端部,从第一端部延伸以附接到散热器(80)的第一锁定部分(20)和第二锁定部分(30) 从所述第二端部延伸以附接到电路板(50)。 第一锁定部分包括销(21),一对C形弹簧部分(22)和可压缩安装部分(23)。 弹簧部分和安装部分用于协同地将散热片夹在其间。 第二锁定部分包括锥形头部(30)和颈部(31)。 第二锁定部分与颈部中的电路板接合。 第一锁定部件在垂直方向上与第二锁定部件偏移。 因此,安装孔偏离电路板的安装孔的散热器适合于电路板。

    Hysteretic mode LED driver with precise average current
    74.
    发明授权
    Hysteretic mode LED driver with precise average current 有权
    滞后模式LED驱动器具有精确的平均电流

    公开(公告)号:US08884942B2

    公开(公告)日:2014-11-11

    申请号:US12885959

    申请日:2010-09-20

    IPC分类号: G06F3/038 G06F3/041 H05B33/08

    CPC分类号: H05B33/0851

    摘要: A hysteretic mode LED driver for providing a driving current for an LED includes a hysteretic comparing circuit and a feedback loop. The hysteretic comparing circuit compares a driving current related sensing signal with a reference signal to control the average value of the driving current. The feedback loop senses the error between the average value of the driving current and a target value to adjust the reference signal or the offset of the hysteretic comparing circuit to adjust the average value of the driving current.

    摘要翻译: 用于为LED提供驱动电流的迟滞模式LED驱动器包括迟滞比较电路和反馈回路。 迟滞比较电路将驱动电流相关感测信号与参考信号进行比较,以控制驱动电流的平均值。 反馈回路检测驱动电流的平均值与目标值之间的误差,以调整参考信号或滞后比较电路的偏移量,以调整驱动电流的平均值。

    Constant on-time switching regulator, and control method and on-time calculation circuit therefor
    75.
    发明授权
    Constant on-time switching regulator, and control method and on-time calculation circuit therefor 有权
    恒定导通时间开关稳压器及其控制方法及其导通时间计算电路

    公开(公告)号:US08531166B2

    公开(公告)日:2013-09-10

    申请号:US13066595

    申请日:2011-04-19

    IPC分类号: G05F1/40

    CPC分类号: H02M3/156

    摘要: The present invention discloses a constant on-time switching regulator, a control method therefor, and an on-time calculation circuit for calculating an on-time period of a constant on-time switching regulator. The on-time calculation circuit calculates on-time according to practical conditions. It includes: a driver gate receiving a gate signal of a power switch in a switching regulator, the driver gate operating between high and low levels of a first reference voltage and ground; a low pass filter receiving an output from the driver gate and generating a second reference voltage, a ratio between the second reference voltage and the first reference voltage being substantially the same as a duty ratio of the gate signal; and an on-time generator comparing the second reference voltage with a ramp signal to determine an on-time of the power switch.

    摘要翻译: 本发明公开了一种恒定导通时间开关调节器及其控制方法,以及用于计算恒定导通时间开关调节器的导通时间周期的接通时间计算电路。 导通时间计算电路根据实际条件准时计算。 它包括:驱动器门接收开关调节器中的电源开关的门信号,驱动器门在第一参考电压和地的高电平和低电平之间工作; 接收来自所述驱动器门的输出并产生第二参考电压的低通滤波器,所述第二参考电压与所述第一参考电压之间的比率基本上与所述栅极信号的占空比相同; 以及导通时间发生器,将所述第二参考电压与斜坡信号进行比较,以确定所述电源开关的接通时间。

    ELECTRONIC DEVICE WITH HEAT SINK
    76.
    发明申请
    ELECTRONIC DEVICE WITH HEAT SINK 审中-公开
    具有散热的电子设备

    公开(公告)号:US20130161074A1

    公开(公告)日:2013-06-27

    申请号:US13596718

    申请日:2012-08-28

    IPC分类号: H05K7/20

    摘要: An electronic device includes a circuit board and a heat sink . A heat generating part is located on the circuit board. Through holes are defined in the circuit board. The heat sink includes a main body and resilient pieces located on the main body. The resilient pieces includes a latching portion and a resisting portion located on the latching portion. The latching portion extends through the through hole to engage with the circuit board. The resisting portion is received in the through hole and abuts the circuit board. The main body closely abuts the heat generating part. The latching portion can be disengaged from the circuit board simply by squeezing the resisting portion.

    摘要翻译: 电子设备包括电路板和散热器。 发热部位于电路板上。 电路板中定义了通孔。 散热器包括主体和位于主体上的弹性片。 弹性件包括锁定部分和位于闩锁部分上的阻挡部分。 闩锁部分延伸穿过通孔以与电路板接合。 阻力部分被容纳在通孔中并且邻接电路板。 主体紧贴发热部分。 简单地通过挤压阻挡部分,可以将闩锁部分与电路板脱离。

    ELECTRONIC DEVICE HAVING DUST CLEANING APPARATUS
    77.
    发明申请
    ELECTRONIC DEVICE HAVING DUST CLEANING APPARATUS 审中-公开
    具有清洁装置的电子装置

    公开(公告)号:US20130155611A1

    公开(公告)日:2013-06-20

    申请号:US13571452

    申请日:2012-08-10

    IPC分类号: H05K7/20 H05K7/00

    CPC分类号: G06F1/20 G06F1/203

    摘要: An electronic device includes a bottom plate, a cover plate, a dust collection box, and a dust cleaning apparatus. A heat sink is mounted in the bottom plate. The cover plate covers on the bottom plate. The cover plate defines a cutout. The dust collection box is placed on the bottom plate via the cutout. The dust cleaning apparatus is slidably mounted on the bottom plate. The dust cleaning apparatus moves relative to the heat sink to sweep dust of the heat sink into the dust collection box.

    摘要翻译: 电子装置包括底板,盖板,集尘箱和除尘装置。 散热器安装在底板上。 盖板盖在底板上。 盖板限定了切口。 集尘箱通过切口放置在底板上。 除尘装置可滑动地安装在底板上。 除尘装置相对于散热器移动,将散热器的灰尘除尘到集尘箱中。

    FUSE CIRCUIT FOR FINAL TEST TRIMMING OF INTEGRATED CIRCUIT CHIP
    78.
    发明申请
    FUSE CIRCUIT FOR FINAL TEST TRIMMING OF INTEGRATED CIRCUIT CHIP 有权
    用于集成电路芯片最终测试的保险丝电路

    公开(公告)号:US20130113049A1

    公开(公告)日:2013-05-09

    申请号:US13358242

    申请日:2012-01-25

    IPC分类号: H01L27/06

    摘要: The present invention discloses a fuse circuit for final test trimming of an integrated circuit (IC) chip. The fuse circuit includes at least one electrical fuse, at least one control switch corresponding to the electrical fuse, and a resistant device. The electrical fuse is connected with the control switch in series between a predetermined pin and a grounding pin. The control switch receives a control signal to determine whether a predetermined current flows through the corresponding electrical fuse and breaks the electrical fuse. The resistant device is coupled between a bulk terminal and a source terminal to increase a resistance of a parasitic channel, such that an electrostatic discharge (ESD) protection is enhanced, and errors of final test trimming of an IC chip are avoided.

    摘要翻译: 本发明公开了一种用于集成电路(IC)芯片的最终测试修整的熔丝电路。 熔断器电路包括至少一个电熔丝,对应于电熔丝的至少一个控制开关和一个电阻装置。 电保险丝与控制开关串联连接在预定的引脚和接地引脚之间。 控制开关接收控制信号以确定预定电流是否流过相应的电熔丝并断开电熔丝。 电阻器件耦合在体端子和源极端子之间以增加寄生沟道的电阻,从而增强了静电放电(ESD)保护,并且避免了IC芯片的最终测试修整的误差。

    FIN ASSMEBLY AND HEAT DISSIPATION DEVICE USING THE SAME
    79.
    发明申请
    FIN ASSMEBLY AND HEAT DISSIPATION DEVICE USING THE SAME 审中-公开
    FIN组合和散热装置使用它

    公开(公告)号:US20130068426A1

    公开(公告)日:2013-03-21

    申请号:US13332387

    申请日:2011-12-21

    IPC分类号: F28F13/00

    摘要: A heat dissipation device includes a centrifugal fan and a fin assembly aside the centrifugal fan. The centrifugal fan includes a casing and an impeller received in the casing, the casing defines an air outlet at one side thereof. The fin assembly is located at the air outlet of the centrifugal fan. The fin assembly includes a plurality of fins parallel to and spaced from each other. Each of the fins includes a main body and an extending portion extending form the main body toward the air outlet of the centrifugal fan. Each extending portion includes a side edge facing the air outlet of the centrifugal fan, the side edge is arc shaped and inwardly concaved toward the main body.

    摘要翻译: 散热装置包括离心风扇和离心风扇旁边的散热片组件。 离心风扇包括壳体和容纳在壳体中的叶轮,壳体在其一侧限定出气口。 翅片组件位于离心风机的出风口处。 翅片组件包括彼此平行并间隔开的多个翅片。 每个翼片包括主体和从主体向离心风扇的空气出口延伸的延伸部分。 每个延伸部分包括面向离心风扇的空气出口的侧边缘,该侧边缘是弧形的并朝向主体向内凹陷。

    Constant on-time switching regulator, and control method and on-time calculation circuit therefor
    80.
    发明申请
    Constant on-time switching regulator, and control method and on-time calculation circuit therefor 有权
    恒定导通时间开关稳压器及其控制方法及其导通时间计算电路

    公开(公告)号:US20120019218A1

    公开(公告)日:2012-01-26

    申请号:US13066595

    申请日:2011-04-19

    IPC分类号: G05F1/10

    CPC分类号: H02M3/156

    摘要: The present invention discloses a constant on-time switching regulator, a control method therefor, and an on-time calculation circuit for calculating an on-time period of a constant on-time switching regulator. The on-time calculation circuit calculates on-time according to practical conditions. It includes: a driver gate receiving a gate signal of a power switch in a switching regulator, the driver gate operating between high and low levels of a first reference voltage and ground; a low pass filter receiving an output from the driver gate and generating a second reference voltage, a ratio between the second reference voltage and the first reference voltage being substantially the same as a duty ratio of the gate signal; and an on-time generator comparing the second reference voltage with a ramp signal to determine an on-time of the power switch.

    摘要翻译: 本发明公开了一种恒定导通时间开关调节器及其控制方法,以及用于计算恒定导通时间开关调节器的导通时间周期的接通时间计算电路。 导通时间计算电路根据实际条件准时计算。 它包括:驱动器门接收开关调节器中的电源开关的门信号,驱动器门在第一参考电压和地的高电平和低电平之间工作; 接收来自所述驱动器门的输出并产生第二参考电压的低通滤波器,所述第二参考电压与所述第一参考电压之间的比率基本上与所述栅极信号的占空比相同; 以及导通时间发生器,将所述第二参考电压与斜坡信号进行比较,以确定所述电源开关的接通时间。