Method and Apparatus for Reducing Radiated Emissions in Switching Power Converters
    1.
    发明申请
    Method and Apparatus for Reducing Radiated Emissions in Switching Power Converters 有权
    用于减少开关电源转换器辐射辐射的方法和装置

    公开(公告)号:US20140035497A1

    公开(公告)日:2014-02-06

    申请号:US13562889

    申请日:2012-07-31

    CPC classification number: H02P23/28 H02M1/126 H02M5/458 H02P27/06

    Abstract: A filter for reducing radiated emissions in switching power converters such as a motor drive is disclosed. The switching power converter modulates a DC voltage input to generate a desired AC voltage output. Capacitors are connected in parallel between each output phase and a common connection, which may be a ground connection. The magnitude and layout of the capacitors are selected to minimize current conducted by the capacitors. The capacitors may be surface mount technology located proximate to the switching devices or the capacitors may be incorporated in the circuit board on which the switching devices are mounted. The filter may be applied to any of the switching elements in a motor drive, such as the inverter section, an active rectifier section, or a switched mode power supply.

    Abstract translation: 公开了一种用于减少诸如电动机驱动器的开关电力转换器中的辐射发射的滤波器。 开关电源转换器调制直流电压输入以产生所需的交流电压输出。 电容器在每个输出相位和公共连接之间并联连接,公共连接可以是接地连接。 选择电容器的幅度和布局以最小化由电容器传导的电流。 电容器可以是位于开关器件附近的表面贴装技术,或者电容器可以并入安装开关器件的电路板中。 滤波器可以应用于诸如逆变器部分,有源整流器部分或开关模式电源的电动机驱动器中的任何开关元件。

    Method of making an electric inductor and inductor made by same
    2.
    发明申请
    Method of making an electric inductor and inductor made by same 失效
    制造电感和电感的方法

    公开(公告)号:US20050068141A1

    公开(公告)日:2005-03-31

    申请号:US10675307

    申请日:2003-09-30

    Applicant: Gary Skibinski

    Inventor: Gary Skibinski

    CPC classification number: H01F27/085 H01F27/24

    Abstract: The present invention provides an improved inductor design which bounces thermal requirements with magnetic and other requirements. The package is designed based upon the desired magnetic volume and the dimensions of a primary heat dissipation surface, which is preferably designed for conductive heat transfer during operation. The other dimensions, such as the height of the package, result from these two parameters. Optimized package designs may thus be obtained which provide the desired operating temperatures, while better utilizing the magnetic volume. Package designs may include new aspect ratios, such as ratios providing a base area greater than a lateral side area. Aspect ratios between base dimensions, such as a diameter in cylindrical package and the resulting height may also be characteristic of the inductors resulting from the novel design approach.

    Abstract translation: 本发明提供了一种改进的电感器设计,其通过磁性和其它要求反弹热需求。 该封装基于所需的磁体积和主要散热表面的尺寸而设计,该主要散热表面优选地设计用于在操作期间进行导电传热。 其他尺寸,例如包装的高度来自这两个参数。 因此可以获得提供期望操作温度的优化的包装设计,同时更好地利用磁体积。 包装设计可以包括新的长宽比,例如提供大于横向侧面积的基部面积的比率。 基本尺寸之间的长宽比,例如圆柱形封装中的直径和所得高度也可能是由新颖设计方法产生的电感器的特征。

    Precharge circuit having microprocessor-based firing angle control
circuitry
    3.
    发明授权
    Precharge circuit having microprocessor-based firing angle control circuitry 失效
    具有基于微处理器的触发角度控制电路的预充电电路

    公开(公告)号:US5483142A

    公开(公告)日:1996-01-09

    申请号:US124893

    申请日:1993-09-22

    CPC classification number: H02J3/01 H02H9/001 H02M7/125 H02M7/1623 Y02E40/40

    Abstract: A capacitor precharge circuit limits both peak DC link current and peak AC line current to any desired peak magnitude thereby providing for optimum precharge control and robust operation. The precharge circuit employs a microprocessor which implements a non-linear discontinuous current control scheme without the need for current sensors. The precharge circuit is well suited for use with an AC to DC converter having link inductor and a DC bus capacitor which requires precharging before full power is applied to the converter.

    Abstract translation: 电容器预充电电路将峰值DC链路电流和峰值AC线路电流限制到任何所需的峰值,从而提供最佳的预充电控制和鲁棒的操作。 预充电电路采用微处理器,其实现非线性不连续电流控制方案,而不需要电流传感器。 预充电电路非常适用于具有链路电感器和直流总线电容器的AC至DC转换器,该直流总线电容器在全功率被施加到转换器之前需要预充电。

    Harmonic compensator using low leakage reactance transformer
    4.
    发明授权
    Harmonic compensator using low leakage reactance transformer 失效
    谐波补偿器采用低漏电抗变压器

    公开(公告)号:US5341281A

    公开(公告)日:1994-08-23

    申请号:US62376

    申请日:1993-05-14

    Applicant: Gary Skibinski

    Inventor: Gary Skibinski

    Abstract: A harmonic compensator comprises a transformer having low leakage reactance connected between a utility and a load and a signal generator which injects into the transformer a signal having a frequency which cancels undesirable higher order harmonics induced by the load. The low leakage reactance nature of the transformer permits injection of high frequency signals which restore the fundamental sine wave of the signal from the utility and thereby eliminates undesirable nonlinear harmonics which cause up-line disruptions. The low leakage reactance transformers may comprise a coaxial structure having a thin hollow tube as the primary coil, a coaxial structure having a single main coaxial cable distributed into several paralleled coaxial cables of smaller diameter, or a co-planar transformer structure having flat strip line conductors wrapped around a conventional core as the primary and secondary coils. Injection of a high frequency signal from the signal generator into the low leakage reactance transformer does not generate unacceptably large voltage drops as in conventional transformers because leakage reactance is low. Thus, the signal compensator is able to produce a signal of sufficiently high dynamic response to match that of even the fastest changing portions of the undesired harmonic signal travelling toward the utility from the load.

    Abstract translation: 谐波补偿器包括连接在公用设施和负载之间的低漏电抗的变压器和向变压器注入具有消除由负载引起的不期望的更高次谐波的频率的信号的信号发生器。 变压器的低漏电抗性允许注入高频信号,其恢复来自电力公司的信号的基本正弦波,从而消除引起上行中断的不期望的非线性谐波。 低泄漏电抗变压器可以包括具有作为初级线圈的薄中空管的同轴结构,具有分布成较小直径的多个并联同轴电缆的单个主同轴电缆的同轴结构或具有扁平带状线的共面变压器结构 作为主要和次要线圈缠绕在常规铁芯上的导体。 由于泄漏电抗低,因此将信号发生器的高频信号从低电压互感器注入不会像以往的变压器那样产生不可接受的大电压降。 因此,信号补偿器能够产生足够高的动态响应的信号,以匹配从负载向公用设施行进的不期望的谐波信号的最快变化部分的信号。

    Apparatus used with AC motors for eliminating line voltage reflections
    7.
    发明授权
    Apparatus used with AC motors for eliminating line voltage reflections 失效
    用于交流电机的装置,用于消除线路电压反射

    公开(公告)号:US5831410A

    公开(公告)日:1998-11-03

    申请号:US799737

    申请日:1997-02-12

    Applicant: Gary Skibinski

    Inventor: Gary Skibinski

    CPC classification number: H02J3/01 Y02E40/40

    Abstract: A termination network to be used with an induction motor for eliminating voltage reflections and voltage surges due to voltage reflections, the network includes a resistive element in series with a capacitive element between each two voltage supply lines. The capacitive element initially operates like a short so that a resistive element terminates each line for a short period, the termination network impedance matches the line impedance, and reflection is eliminated. After a voltage pulse passes to a stator winding the capacitor element is charged and the resistive element is effectively removed from the line circuit.

    Abstract translation: 与用于消除由于电压反射引起的电压反射和电压浪涌的感应电动机一起使用的终端网络,网络包括与每个两个电压供应线之间的电容元件串联的电阻元件。 电容元件最初的操作类似于短路,使得电阻元件在短时间内终止每条线,终端网络阻抗与线路阻抗匹配,并且消除了反射。 在电压脉冲通过定子绕组之后,电容器元件被充电,电阻元件被有效地从线路电路中去除。

    Rectifier for reducing current harmonics from unbalanced source

    公开(公告)号:US20060227582A1

    公开(公告)日:2006-10-12

    申请号:US11095015

    申请日:2005-03-31

    CPC classification number: H02M1/126 H02M7/06

    Abstract: A rectifier includes a transformer, a rectifying bridge, a link capacitor, and at least a first resonance loop. The transformer is operable to receive three phase input signals having a source frequency and generate a plurality of transformer phase signals. The rectifying bridge has a number of stages corresponding to the number of transformer phase signals and is operable to generate a rectified output signal based on the transformer phase signals. The link capacitor is coupled across the rectifying bridge. The first resonance loop is coupled between the rectifying bridge and the link capacitor. The first resonance loop has a first resonance frequency corresponding to a harmonic frequency of the source frequency.

    Method and apparatus for reducing radiated emissions in switching power converters
    10.
    发明授权
    Method and apparatus for reducing radiated emissions in switching power converters 有权
    用于减少开关电源转换器辐射发射的方法和装置

    公开(公告)号:US08970148B2

    公开(公告)日:2015-03-03

    申请号:US13562889

    申请日:2012-07-31

    CPC classification number: H02P23/28 H02M1/126 H02M5/458 H02P27/06

    Abstract: A filter for reducing radiated emissions in switching power converters such as a motor drive is disclosed. The switching power converter modulates a DC voltage input to generate a desired AC voltage output. Capacitors are connected in parallel between each output phase and a common connection, which may be a ground connection. The magnitude and layout of the capacitors are selected to minimize current conducted by the capacitors. The capacitors may be surface mount technology located proximate to the switching devices or the capacitors may be incorporated in the circuit board on which the switching devices are mounted. The filter may be applied to any of the switching elements in a motor drive, such as the inverter section, an active rectifier section, or a switched mode power supply.

    Abstract translation: 公开了一种用于减少诸如电动机驱动器的开关电力转换器中的辐射发射的滤波器。 开关电源转换器调制直流电压输入以产生所需的交流电压输出。 电容器在每个输出相位和公共连接之间并联连接,公共连接可以是接地连接。 选择电容器的幅度和布局以最小化由电容器传导的电流。 电容器可以是位于开关器件附近的表面贴装技术,或者电容器可以并入安装开关器件的电路板中。 滤波器可以应用于诸如逆变器部分,有源整流器部分或开关模式电源的电动机驱动器中的任何开关元件。

Patent Agency Ranking