Switching power supply apparatus
    51.
    发明授权

    公开(公告)号:US06646848B2

    公开(公告)日:2003-11-11

    申请号:US10059922

    申请日:2002-01-29

    CPC classification number: H02M1/32 H02M3/156 H02M3/33569 H02M2001/0009

    Abstract: An overcurrent protection circuit of a switching power supply apparatus, wherein a rectangular wave voltage is formed from an input voltage by the ON/OFF operation switching means, and an output voltage is formed by smoothing the rectangular wave voltage by using an inductance device and a capacitor, restricts overcurrent by detecting the peak current of a current flowing through the switching means and by using an input voltage Vin, an output voltage Vout and a voltage proportional to the ON/OFF ratio D of the switching means.

    Method of determining movement sequence and apparatus for realizing it
    52.
    发明授权
    Method of determining movement sequence and apparatus for realizing it 失效
    确定运动顺序的方法和实现它的装置

    公开(公告)号:US06576919B1

    公开(公告)日:2003-06-10

    申请号:US09031514

    申请日:1998-02-27

    Applicant: Koji Yoshida

    Inventor: Koji Yoshida

    Abstract: The present invention relates to a movement sequence determining method of obtaining a preferred solution of movement sequence within a predetermined time and an apparatus for realizing it so that a movement sequence, indicating a visit order of plural process areas having degrees of freedom in scan directions of local areas being objects of a predetermined process of exposure, inspection, or the like, can be achieved in a shortest time. The method comprises at least an arithmetic step of generating a group including plural movement sequences that can be carried out, out of a group of movement sequence candidates, each indicating a visit order of plural process areas as well as scan directions of local areas in the plural process areas, and selecting a movement sequence in which a movement operation between plural process areas is completed in a shortest time, from the group generated, and a prestep of producing a movement time management table storing movement times, each from a movement start position to a movement end position, in unit lengths between process areas. Accordingly, a resultant solution of movement sequence includes information concerning the visit order of process areas and the scan direction of each process area. The apparatus comprises at least an arithmetic section for carrying out the arithmetic step, and a memory for storing the movement time management table.

    Abstract translation: 本发明涉及一种在预定时间内获得移动序列的优选方案的移动顺序确定方法和用于实现它的装置,使得指示扫描方向上具有自由度的多个处理区域的访问顺序的移动顺序 可以在最短时间内实现作为曝光,检查等的预定处理对象的局部区域。 该方法至少包括一个算术步骤,用于生成包括可以被执行的多个移动序列的组,该运动序列包括运动序列候选组中的每一个运动序列,每组运动序列候选指示多个处理区域的访问顺序以及在该区域中的局部区域的扫描方向 多个处理区域,并且从生成的组中选择其中在最短时间内完成多个处理区域之间的移动操作的移动顺序,以及生成存储移动时间的移动时间管理表的预定步骤,每个移动时间管理表从移动开始位置 到运动结束位置,处理区域之间的单位长度。 因此,所得到的移动顺序的解决方案包括关于处理区域的访问顺序和每个处理区域的扫描方向的信息。 该装置至少包括用于执行算术步骤的算术部分和用于存储移动时间管理表的存储器。

    Optical module, board mounted optical module, and assembly method of optical module
    53.
    发明授权
    Optical module, board mounted optical module, and assembly method of optical module 失效
    光模块,板载光模块,光模组装方式

    公开(公告)号:US06488416B1

    公开(公告)日:2002-12-03

    申请号:US09662338

    申请日:2000-09-14

    CPC classification number: G02B6/4201 G02B6/4292

    Abstract: A conventional problem is to provide an optical module capable of being reflow mounted together with electronic components collectively, and, at the same time, securing a mechanical strength that can bear a large stress at the time of an attachment/detachment of the optical fiber. A solution to the above-mentioned problem can be attained by using an optical connector removable type optical module for reflow mounting having a fixing structure for fixing itself to a mount board, including a receptacle part installed to an optical module 19 to which an optical connector 1 is detachably connected; electric terminals 4 for reflow mounting that are arranged corresponding to lands 8 on a mount board 6; and stud parts 5 that are able to fit in fixing holes 7 on the mount board 6.

    Abstract translation: 常规的问题是提供一种能够一体地与电子部件一起回流安装的光学模块,同时确保在光纤的安装/拆卸时可承受较大应力的机械强度。 对于上述问题的解决方案可以通过使用用于回流安装的光学连接器可拆卸型光学模块来实现,该光学连接器可拆卸型光学模块具有用于将自身固定到安装板上的固定结构,其包括安装到光学模块19的插座部分,光学连接器 1可拆卸地连接; 用于回流安装的电端子4,其对应于安装板6上的焊盘8; 以及能够装配在安装板6上的固定孔7中的螺柱部件5。

    Switching power supply with delay circuit for light-load period
    54.
    发明授权
    Switching power supply with delay circuit for light-load period 有权
    开关电源带有延迟电路,用于轻载周期

    公开(公告)号:US06452816B2

    公开(公告)日:2002-09-17

    申请号:US09867038

    申请日:2001-05-29

    CPC classification number: H02M3/3376

    Abstract: In an isolation type DC-DC converter for performing full-wave rectification in the secondary of a transformer, two switching sections 11 and 13 alternately switch ON and OFF, thereby reversing the current I3 flowing through a primary winding 3a of the transformer 3. A switching control circuit 7 outputs switching signals G1 and G3 to the switching sections 11 and 13, respectively, thereby controlling the switching of the switching sections. A load current sensing section 9 senses the amount of load current, then compares it with a predetermined threshold value. When the amount of load current sensed is smaller than the threshold value, a delay circuit 8 delays the switching signals G1 and G3 to the switching sections 11 and 13 for a predetermined delay time. The delay time is set to be substantially equal to ¼ of the resonance period determined by the self-inductance of the primary winding 3a of the transformer 3.

    Abstract translation: 在用于在变压器次级中进行全波整流的隔离型DC-DC转换器中,两个开关部11和13交替地接通和断开,从而使流过变压器3的初级绕组3a的电流I3反转。 开关控制电路7将切换信号G1,G3分别输出到切换部11,13,由此控制切换部的切换。 负载电流检测部分9感测负载电流的量,然后将其与预定的阈值进行比较。 当检测到的负载电流量小于阈值时,延迟电路8将开关信号G1和G3延迟到开关部分11和13一段预定的延迟时间。 延迟时间被设定为基本上等于由变压器3的初级绕组3a的自感确定的谐振周期的1/4。

    Switching power supply with surge current and surge voltage prevention
    57.
    发明授权
    Switching power supply with surge current and surge voltage prevention 失效
    开关电源具有浪涌电流和浪涌电压预防

    公开(公告)号:US5774345A

    公开(公告)日:1998-06-30

    申请号:US725366

    申请日:1996-10-03

    Abstract: A direct current output voltage is switched by two switching units and a current alternately changing directions is supplied to a primary winding of a transformer. An alternating voltage induced in a secondary winding of the transformer is rectified and smoothed, and is applied to a control circuit. A bidirectional switching unit is connected in parallel with the primary winding, and is controlled by the control circuit so that the primary winding is short-circuited by the bidirectional switching unit and an exciting energy of the transformer is held continuously.

    Abstract translation: 直流输出电压由两个开关单元切换,并且电流交替变化的方向被提供给变压器的初级绕组。 在变压器的次级绕组中感应的交流电压被整流和平滑,并被施加到控制电路。 双向开关单元与初级绕组并联连接,由控制电路控制,使得初级绕组由双向开关单元短路,变压器的激励能量持续保持。

    Optical fiber complex overhead line
    59.
    发明授权
    Optical fiber complex overhead line 失效
    光纤复合架空线

    公开(公告)号:US5699467A

    公开(公告)日:1997-12-16

    申请号:US659535

    申请日:1996-06-06

    CPC classification number: G02B6/4422 G02B6/4407 G02B6/4489

    Abstract: An optical fiber complex overhead line including a spacer formed with a plurality of helical grooves in its outer periphery extending along the axial direction, each helical groove shaped to be able to accommodate at least two bundles of multi-core type optical fiber in the width direction of the groove, at least two bundles of multi-core type optical fiber accommodated in each of the helical grooves, a protective optical fiber covering accommodating the spacer, and a plurality of conductor strands arranged around the protective optical fiber covering.

    Abstract translation: 一种光纤复合物架空线,其包括在其外周沿着轴向延伸的多个螺旋槽形成的间隔物,每个螺旋槽成形为能够在宽度方向上容纳至少两束多芯型光纤 所述槽中的至少两束多芯型光纤被容纳在所述螺旋槽中,保护性光纤覆盖物容纳所述隔离物,以及多个导体绞线布置在所述保护性光纤覆盖物周围。

    Laser marking apparatus
    60.
    发明授权
    Laser marking apparatus 失效
    激光打标机

    公开(公告)号:US5587094A

    公开(公告)日:1996-12-24

    申请号:US433416

    申请日:1995-05-23

    CPC classification number: B23K26/08 B23K26/066 B23K26/082 B23K26/0821

    Abstract: A laser marking apparatus, capable of marking at a high scanning speed, effectively utilizing a laser power, and providing high marking accuracy, irradiates an incident laser beam from a laser beam source onto a marking surface by raster-scanning through a raster scanning system. The raster scanning system includes an X-direction polarizing mirror, a Y-direction polarizing mirror, a field lens, and a mask. A double polarizing prism, which includes a pair of polarizing prisms (13a, 13b) for branching the incident laser beam (1) into twin laser beams, is arranged in series at an intermediate position between the laser beam source (2) and the upstream one of the X-direction polarizing mirror (3) and the Y-direction polarizing mirror (8). An adjusting means is provided to vary the distance between the two polarizing prisms (13a, 13b) or to rotate one or both of the polarizing prisms (13a, 13b) to vary the rotation angle by rotating one of the twin laser beams around the other, to thereby vary the distance between the centers of the twin laser beams as they irradiate the mask.

    Abstract translation: PCT No.PCT / JP93 / 01717 Sec。 371日期:1995年5月23日 102(e)日期1995年5月23日PCT提交1993年11月24日PCT公布。 公开号WO94 / 12309 日期:1994年6月9日一种激光打标设备,能够以高扫描速度进行标记,有效地利用激光功率,并提供高标记精度,通过光栅扫描通过激光束源将入射激光束照射到标记表面上 光栅扫描系统。 光栅扫描系统包括X方向偏振镜,Y方向偏振镜,场透镜和掩模。 包括用于将入射激光束(1)分支成双激光束的一对偏振棱镜(13a,13b)的双偏振棱镜在激光束源(2)和上游之间的中间位置串联布置 X方向偏振镜(3)和Y方向偏振镜(8)中的一个。 提供调节装置以改变两个偏振棱镜(13a,13b)之间的距离或旋转偏振棱镜(13a,13b)中的一个或两个,以通过使两个激光束中的一个围绕另一个旋转来改变旋转角度 从而在照射该掩模时改变双激光束的中心之间的距离。

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