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    • 1. 发明申请
    • METHOD FOR OPERATING A CONVERTER AND CORRESPONDING APPARATUS
    • 用于操作转换器和相应装置的方法
    • US20100008118A1
    • 2010-01-14
    • US12498680
    • 2009-07-07
    • Frank BeckerNorbert Benesch
    • Frank BeckerNorbert Benesch
    • H02M7/217
    • H02M7/219
    • A method for operating a line-side fundamental-frequency-clocked converter is disclosed. The converters has a bridge circuit with, for example three, upper and, for example three, lower semiconductor switches, which are connected to respective positive and negative terminals of a DC link circuit. Center taps of connected pairs of the upper and lower semiconductor switches are connected to the line voltage phases. Two upper or two lower semiconductor switches are simultaneously activated during fundamental frequency operation for a predetermined time period before or after a natural trigger instant of the semiconductor switches caused by a line voltage angle. An estimated line voltage angle for clocking the semiconductor switches is tracked based on two phase currents measured while the two upper or two lower semiconductor switches are simultaneously active.
    • 公开了一种用于操作线路侧基频时钟转换器的方法。 转换器具有桥接电路,其具有例如三个上部和(例如三个)下半导体开关,其连接到DC链路电路的相应的正极和负极端子。 上下半导体开关的连接对的中心抽头连接到线路电压相位。 在由线电压角度引起的半导体开关的自然触发时刻之前或之后的预定时间段内,在基频操作期间,同时激活两个上或下两个半导体开关。 基于在两个上半导体开关或两个下半导体开关同时有效时测量的两相电流来跟踪用于计时半导体开关的估计线电压角。
    • 2. 发明授权
    • Method for operating a converter and corresponding apparatus
    • 用于操作转换器和相应设备的方法
    • US08116108B2
    • 2012-02-14
    • US12498680
    • 2009-07-07
    • Frank BeckerNorbert Benesch
    • Frank BeckerNorbert Benesch
    • H02M7/217H02M7/219H02M7/23H02M7/25
    • H02M7/219
    • A method for operating a line-side fundamental-frequency-clocked converter is disclosed. The converters has a bridge circuit with, for example three, upper and, for example three, lower semiconductor switches, which are connected to respective positive and negative terminals of a DC link circuit. Center taps of connected pairs of the upper and lower semiconductor switches are connected to the line voltage phases. Two upper or two lower semiconductor switches are simultaneously activated during fundamental frequency operation for a predetermined time period before or after a natural trigger instant of the semiconductor switches caused by a line voltage angle. An estimated line voltage angle for clocking the semiconductor switches is tracked based on two phase currents measured while the two upper or two lower semiconductor switches are simultaneously active.
    • 公开了一种用于操作线路侧基频时钟转换器的方法。 转换器具有桥接电路,其具有例如三个上部和(例如三个)下半导体开关,其连接到DC链路电路的相应的正极和负极端子。 上下半导体开关的连接对的中心抽头连接到线路电压相位。 在由线电压角度引起的半导体开关的自然触发时刻之前或之后的预定时间段内,在基频操作期间,同时激活两个上或下两个半导体开关。 基于在两个上半导体开关或两个下半导体开关同时有效时测量的两相电流来跟踪用于计时半导体开关的估计线电压角。
    • 5. 发明授权
    • Method and apparatus for setting a feedback power of a fundamental frequency clocked converter
    • 用于设置基频时钟转换器的反馈功率的方法和装置
    • US08130523B2
    • 2012-03-06
    • US12499404
    • 2009-07-08
    • Norbert Benesch
    • Norbert Benesch
    • H02M7/219
    • H02M7/797H02J3/1892
    • A method and an apparatus for setting a feedback power of a converter clocked at a fundamental frequency on the power supply side are disclosed. The converter includes a bridge circuit equipped with controllable semiconductor switches, wherein the semiconductor switches are clocked at the fundamental frequency depending on a desired direction of a power flow through the bridge circuit. Drive signals for the semiconductor switches are derived from the clock pulses at the fundamental frequency and a switch-on delay which depends on a DC link voltage of a DC link connected to the converter. The switch-on delay is determined based on a predetermined characteristic curve that depends on the DC link voltage.
    • 公开了一种用于设置在电源侧以基频计时的转换器的反馈功率的方法和装置。 转换器包括配备有可控半导体开关的桥接电路,其中半导体开关根据通过桥式电路的功率流的期望方向以基频计时。 用于半导体开关的驱动信号源自基频的时钟脉冲和取决于连接到转换器的DC链路的DC链路电压的接通延迟。 基于取决于DC链路电压的预定特性曲线来确定接通延迟。
    • 8. 发明授权
    • Apparatus for rapidly measuring angle-dependent diffraction effects on finely patterned surfaces
    • 用于在精细图案化表面上快速测量与角度相关的衍射效应的装置
    • US06724475B2
    • 2004-04-20
    • US09968587
    • 2001-10-01
    • Norbert BeneschClaus SchneiderLothar Pfitzner
    • Norbert BeneschClaus SchneiderLothar Pfitzner
    • G01N2100
    • G01B11/30G01N21/4788
    • An apparatus for measuring angle-dependent diffraction effects includes a coherent radiation source, a device for deflecting the coherent radiation in different directions, a spherical or aspherical mirror or mirror segments configured to correspond to a spherical or aspherical mirror, and a detector unit for measuring the intensity of the radiation diffracted at a specimen. The radiation deflected in different directions is reflected by the mirror configuration in such a way that the coherent beam is deflected onto the specimen with different angles of incidence in a temporally successively sequential manner. For this purpose, the angle of incidence of the measuring beam is altered continuously or in small steps. The intensities of the direct reflection (zero-order diffraction) and also of the higher orders of diffraction that may occur are measured. This evaluation allows conclusions to be drawn regarding the form and material of the periodic structures examined.
    • 用于测量依赖于角度的衍射效应的装置包括相干辐射源,用于偏转不同方向的相干辐射的装置,被配置为对应于球面或非球面镜的球面镜或非球面镜或镜片,以及用于测量的检测器单元 在试样处辐射的辐射强度。 以不同方向偏转的辐射由反射镜构造反射,使得相干光束以时间上依次顺序的方式以不同的入射角偏转到样本上。 为此,测量光束的入射角度连续地或以小的步长改变。 测量直接反射(零级衍射)的强度以及可能发生的较高的衍射级数。 该评估允许对所检查的周期性结构的形式和材料得出结论。