Multiphase voltage regulator having coupled inductors with reduced winding resistance
    121.
    发明授权
    Multiphase voltage regulator having coupled inductors with reduced winding resistance 有权
    具有耦合电感器的多相电压调节器具有降低的绕组电阻

    公开(公告)号:US07199695B1

    公开(公告)日:2007-04-03

    申请号:US11257404

    申请日:2005-10-25

    CPC classification number: H01F37/00 H01F29/02 H02M3/1584

    Abstract: A multiple phase buck converter or boost converter, or buck-boost converter has an inductor in each phase. A magnetic core with a unique woven topology provides inverse coupling between the inductors. The inductors can comprise straight conductors since the magnetic core has the woven topology wrapped around each inductor. The inductors have a reduced electrical resistance since they are straight and do not loop around the magnetic core. The reduced electrical resistance increases energy efficiency and improves transient response of the circuit. The magnetic core can comprise top and bottom portions that are magnetically connected. The inductors can comprise straight circuit board traces and the circuit board can have holes to accommodate the magnetic core.

    Abstract translation: 多相降压转换器或升压转换器或降压 - 升压转换器在每相中都有一个电感。 具有独特编织拓扑的磁芯提供了电感器之间的反耦合。 电感器可以包括直导体,因为磁芯具有缠绕在每个电感器周围的编织拓扑。 电感器具有降低的电阻,因为它们是直的并且不环绕磁芯。 降低的电阻提高了能量效率并改善了电路的瞬态响应。 磁芯可以包括磁性连接的顶部和底部。 电感器可以包括直线电路板迹线,并且电路板可以具有孔以容纳磁芯。

    Self-driven scheme for synchronous rectifier
    122.
    发明申请
    Self-driven scheme for synchronous rectifier 有权
    同步整流器的自驱动方案

    公开(公告)号:US20060226819A1

    公开(公告)日:2006-10-12

    申请号:US11094438

    申请日:2005-03-31

    CPC classification number: H02M3/1582 H02M3/338

    Abstract: A voltage converter uses a component such as a JFET or four-terminal power MOSFET having no body diode and exhibiting no body diode conduction characteristic as a synchronous rectifier to reduce switching losses and body diode conduction losses and to support high frequency switching so that use of smaller components and higher current densities can be achieved. These effects are enhanced by a self-driven circuit utilizing positive feedback to enhance switching speed and reduce switching losses which increase with switching frequency.

    Abstract translation: 电压转换器使用诸如JFET或不具有体二极管导通特性的JFET或四端子功率MOSFET的组件作为同步整流器来减少开关损耗和体二极管导通损耗并支持高频开关,从而使用 可以实现更小的组件和更高的电流密度。 这些效应通过利用正反馈的自驱动电路增强,以提高开关速度并减少开关频率增加的开关损耗。

    Optical system
    123.
    发明申请
    Optical system 失效
    光学系统

    公开(公告)号:US20060119845A1

    公开(公告)日:2006-06-08

    申请号:US11005325

    申请日:2004-12-07

    CPC classification number: G01N21/6452

    Abstract: An optical system is provided for achieving enhanced rejection of scattered excitation light and superior signal-to-noise performance when reading microplate wells. The optical system uses an axial configuration in which the excitation beam incident upon the sample propagates along the axis of the microplate well. Excitation light from a light source, such as a lamp or fiber optic bundle, is collimated into a beam using a lens. A reflective pick-off mirror is then used to reflect the collimated excitation beam upward along the well axis. A focusing lens, with a diameter exceeding the diameter of the collimated excitation beam, is used to focus the excitation beam in the well. The same broad lens is used to collimate the emitted fluorescent light, of which a large percentage propagates axially past the pick-off mirror towards a second focusing lens that focuses the emission beam onto the face of a fiber optic bundle. The emitted light is later filtered and detected using at a position that is optically shielded from the aforementioned optical system. The optical system is incorporated into a microplate reader or automated assay instrument in order to provide a compact assembly for sensitive fluorescence measurements either above or below the microplate. The optical system further enables the simultaneous measurement of absorbance and fluorescence in a compact optical configuration.

    Abstract translation: 提供了一种光学系统,用于在读取微孔板孔时实现增强的散射激发光的抑制和优异的信噪比性能。 光学系统使用轴向配置,其中入射到样品上的激发光束沿微孔板的轴传播。 来自光源(例如灯或光纤束)的激发光利用透镜准直成束。 然后使用反射式拾取镜将准直激发光束沿着井轴向上反射。 使用直径超过准直激励光束的直径的聚焦透镜将激发光束聚焦在井中。 相同的宽透镜用于准直发射的荧光,其中大百分比沿轴向传播通过拾取镜朝向将发射光束聚焦到光纤束的表面上的第二聚焦透镜。 在与上述光学系统光学屏蔽的位置处,发射的光被稍后滤波和检测。 将光学系统并入微孔板读数器或自动化测定仪器中,以便提供用于微板上方或下方的敏感荧光测量的紧凑组件。 光学系统还能够以紧凑的光学配置同时测量吸光度和荧光。

    Self-driven circuit for synchronous rectifier DC/DC converter
    124.
    发明授权
    Self-driven circuit for synchronous rectifier DC/DC converter 有权
    用于同步整流DC / DC转换器的自驱动电路

    公开(公告)号:US07016203B2

    公开(公告)日:2006-03-21

    申请号:US10852683

    申请日:2004-05-25

    CPC classification number: H02M3/33592 Y02B70/1475

    Abstract: A power converter having a primary circuit (e.g. full bridge) and a secondary circuit (e.g. current doubler) has switches in the secondary circuit that are controlled by a drive circuit. The drive circuit is connected to a swing node in the primary circuit, and is powered by the primary circuit. The drive circuit has an isolation device such as a transformer to provide electrical isolation between the primary circuit and secondary circuit. The drive circuit provides a current source for driving the secondary switch gates, thereby reducing power consumption. The present drive circuit provides clean gate drive signals without noise and oscillations. The drive circuits of the invention are simple, and require only a few components.

    Abstract translation: 具有主电路(例如全桥)和次级电路(例如倍频器)的功率转换器具有由驱动电路控制的次级电路中的开关。 驱动电路连接到主电路中的摆动节点,并由主电路供电。 驱动电路具有诸如变压器的隔离装置,以在主电路和次级电路之间提供电隔离。 驱动电路提供用于驱动次级开关门的电流源,从而降低功耗。 本驱动电路提供清洁的栅极驱动信号,无噪声和振荡。 本发明的驱动电路简单,仅需少量组件。

    Heat activated ink jet ink
    125.
    再颁专利
    Heat activated ink jet ink 有权
    热活化喷墨油墨

    公开(公告)号:USRE38952E1

    公开(公告)日:2006-01-31

    申请号:US10195922

    申请日:2002-07-15

    CPC classification number: C09D11/02 C09D11/328

    Abstract: A method of printing a liquid ink which is produced from a heat activated dye which is selected from a limited group of dyes which are capable of transfer at low energy. A printer which uses liquid ink, such as an ink jet printer, prints an image onto an intermediate substrate medium. The dyes contained in the ink are not substantially activated during the process of printing on to the medium. The image formed by the printed ink is transferred from the medium to a final substrate by the application of heat and pressure for a short period of time to activate the ink. The dye and dispersing/emulsifying agent(s) are selected from a limited group to produce an ink which permits thermal transfer at low energy, with the resulting image, as deposited on the final substrate, having an optical density of 1.0 or greater. Liquid ink is produced using heat activated dyes selected from a limited group of dyes that are capable of heat activation. The dyes are not substantially soluble in the liquid carrier, such as water. One or more emulsifying agents stabilize the ink formulation. A printer that uses liquid ink, such as an ink jet printer, is used to print the ink, and the dye is heat activated after printing.

    Abstract translation: <?delete-start id =“DEL-S-00001”date =“20060131”?>一种印刷由热活化染料制成的液体油墨的方法,该活化染料选自能够转移的有限染料组 在低能量。 使用液体墨水的打印机,例如喷墨打印机,将图像打印到中间基板介质上。 包含在墨水中的染料在印刷到介质的过程中基本上不被活化。 由印刷油墨形成的图像通过在短时间内施加热和压力从介质转移到最终的基板以启动油墨。 染料和分散/乳化剂选自有限的组合以产生允许以低能量进行热转印的油墨,沉积在最终基材上的所得图像具有1.0或更大的光密度。 ?delete-end id =“DEL-S-00001”?> <?insert-start id =“INS-S-00001”date =“20060131”?>液体油墨是使用选自有限组 能够热活化的染料。 染料基本上不溶于液体载体,如水。 一种或多种乳化剂稳定油墨制剂。 使用诸如喷墨打印机之类的液体墨水的打印机来打印墨水,并且在打印后染料被热激活。<?insert-end id =“INS-S-00001”?>

    Overvoltage projection circuit
    128.
    发明申请
    Overvoltage projection circuit 审中-公开
    过电压投影电路

    公开(公告)号:US20050141158A1

    公开(公告)日:2005-06-30

    申请号:US10870499

    申请日:2004-06-17

    CPC classification number: H02M1/32 H02M3/1584

    Abstract: An overvoltage protection circuit for use with a power supply is proposed, wherein the power supply includes a voltage supply circuit and a diode having a first electrode and a second electrode. The overvoltage protection circuit is used to stop or reduce the output voltage of the voltage supply circuit when the output voltage of the voltage supply circuit exceeds its maximum output voltage rating. The overvoltage protection circuit comprises a first comparator for detecting a first voltage at the first electrode of the diode and outputting a first detecting signal in response to the comparison between the first voltage and the maximum output voltage rating, a second comparator for detecting a second voltage at the second electrode of the diode and outputting a second detecting signal in response to the comparison between the second voltage and the maximum output voltage rating, and a logic circuit for stopping or reducing the output voltage of the voltage supply circuit when both of the first voltage and the second voltage are higher than the maximum output voltage rating.

    Abstract translation: 提出了一种用于电源的过电压保护电路,其中电源包括电压供应电路和具有第一电极和第二电极的二极管。 当电源电路的输出电压超过其最大输出额定电压时,过电压保护电路用于停止或降低电源电路的输出电压。 过电压保护电路包括用于检测二极管的第一电极处的第一电压并响应于第一电压和最大输出电压额定值之间的比较而输出第一检测信号的第一比较器,用于检测第二电压 在二极管的第二电极处,并且响应于第二电压和最大输出电压额定值之间的比较而输出第二检测信号;以及逻辑电路,用于在第一和第二电压两者之间停止或减小电压供应电路的输出电压 电压和第二电压高于最大输出电压额定值。

    Optical performance monitor using co-located switchable fiber bragg grating array
    129.
    发明申请
    Optical performance monitor using co-located switchable fiber bragg grating array 失效
    光学性能监视器采用共同定位的可切换光纤布拉格光栅阵列

    公开(公告)号:US20050105902A1

    公开(公告)日:2005-05-19

    申请号:US10714451

    申请日:2003-11-17

    Abstract: The present invention provides methods and devices for optical performance monitoring using co-located switchable fiber Bragg gratings (FBGs) in conjunction with a few detectors. This arrangement combines the merit of both tunable FBG filters and discrete detectors to achieve high spectral resolution, fast detection process and great dynamic range. By using parallel co-located FBGs in conjunction with a banded architecture, the tuning range of each FBG becomes much smaller (equivalent of ˜0.08% strain). As a result, not only does the update speed of the spectral characteristics for each channel become much faster, but it effectively eliminates the concern of FBG long-term reliability as well.

    Abstract translation: 本发明提供了使用共同定位的可切换光纤布拉格光栅(FBG)与几个检测器结合的光学性能监测的方法和装置。 这种布置结合了可调谐FBG滤波器和离散检测器的优点,以实现高光谱分辨率,快速检测过程和极好的动态范围。 通过与并联架构结合使用并行并置FBG,每个FBG的调谐范围变得更小(相当于〜0.08%应变)。 因此,不仅每个通道的频谱特性的更新速度变得更快,而且有效地消除了FBG长期可靠性的担忧。

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