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18 条记录 (耗时 0.014 秒)

    Method for controlling an electrical light source by pulse width modulation
    2.
    发明授权
    Method for controlling an electrical light source by pulse width modulation 有权
    通过脉宽调制控制电光源的方法

    公开(公告)号：US07888890B2

    公开(公告)日：2011-02-15

    申请号：US11661663

    申请日：2005-07-14

    申请人： Uli Joos ,  Christian Voss ,  Josef Schnell ,  Jochen Zwick

    发明人： Uli Joos ,  Christian Voss ,  Josef Schnell ,  Jochen Zwick

    IPC分类号： H05B41/36

    CPC分类号： H05B33/0851 ,  H05B33/0818 ,  H05B39/047 ,  Y02B20/346

    摘要： A method for controlling electrical light sources, in particular, light-emitting diodes (LEDs) by pulse width modulation of a supply voltage is disclosed, whereby the supply voltage or a parameter dependent thereon, for example the current or the electrical power, is measured and the pulse width is controlled as a function thereof. According to the invention, for the light source a characteristic curve for the brightness is generated as a function of the supply voltage or the parameter dependent thereon and, from the measured supply voltage or the parameter dependent thereon, an actual brightness value is determined with the characteristic curve and is compared with a given brightness value and the pulse width controlled as a function thereof.

    摘要翻译： 公开了一种通过电源电压的脉冲宽度调制来控制电光源，特别是发光二极管（LED）的方法，由此测量电源电压或其所依赖的参数，例如电流或电功率 并且作为其功能控制脉冲宽度。 根据本发明，对于光源，根据供电电压或依赖于其的参数产生亮度的特性曲线，并且根据所测量的电源电压或依赖于其的参数，实际亮度值由 特性曲线，并与给定的亮度值进行比较，其脉冲宽度作为其功能受到控制。

    Balloon Catheter
    3.
    发明申请
    Balloon Catheter 审中-公开
    气球导管

    公开(公告)号：US20110015571A1

    公开(公告)日：2011-01-20

    申请号：US12741595

    申请日：2008-11-06

    申请人： Jokum Christian Voss ,  Pernille Merethe Guldager

    发明人： Jokum Christian Voss ,  Pernille Merethe Guldager

    IPC分类号： A61M29/00

    CPC分类号： A61M25/10 ,  A61M25/1034

    摘要： The present invention relates to the attachment of balloon walls to catheters in order to provide a balloon catheter. In particular it relates to adhering the balloon walls to the catheters in order to optimize an even inflation of the balloon.

    摘要翻译： 本发明涉及将球囊壁附接到导管以提供球囊导管。 特别地，其涉及将球囊壁粘附到导管以便优化气囊的均匀充气。

    METHOD FOR DRIVING NON-LINEAR LOAD ELEMENTS
    5.
    发明申请
    METHOD FOR DRIVING NON-LINEAR LOAD ELEMENTS 有权
    用于驱动非线性负载元件的方法

    公开(公告)号：US20100308786A1

    公开(公告)日：2010-12-09

    申请号：US12675239

    申请日：2008-08-23

    申请人： Uli Joos ,  Jochen Zwick ,  Josef Schnell ,  Christian Voss

    发明人： Uli Joos ,  Jochen Zwick ,  Josef Schnell ,  Christian Voss

    IPC分类号： G05F1/10

    CPC分类号： H03K17/166 ,  H03K2217/0036 ,  H05B33/0809 ,  H05B33/0818

    摘要： A method for driving a non-linear load element. On account of the non-linear interrelationship between the voltage and the current at the load element and the related non-linear dependence of the power loss on the quantities “voltage” and “current”, an adjustment of the switching speed only on the basis of the power loss in the switching element cannot be carried out with non-linear load elements without being confronted with undesirable switching losses and related electromagnetic noise fields. Therefore, the load current currently flowing in the load element is picked up in addition to the currently determined power loss in the switching element, and the switching speed of the switching element is controlled in dependence on the determined power loss and on the current picked up. The switching speed can be optimally adjusted when driving the non-linear load elements by means of PWM.

    摘要翻译： 一种用于驱动非线性负载元件的方法。 由于负载元件上的电压和电流之间的非线性相互关系以及功率损耗对“电压”和“电流”的相关非线性依赖性，仅在其基础上调整开关速度 的开关元件中的功率损耗不能用非线性负载元件执行，而不会面临不期望的开关损耗和相关的电磁噪声场。 因此，除了开关元件中的当前确定的功率损耗之外，拾取负载元件中当前流动的负载电流，并且根据确定的功率损耗和当前拾取的电流来控制开关元件的开关速度 。 通过PWM驱动非线性负载元件时，可以最佳地调整开关速度。