High attenuation filtering circuit for power converters
    3.
    发明授权
    High attenuation filtering circuit for power converters 失效
    用于电源转换器的高衰减滤波电路

    公开(公告)号:US07672147B1

    公开(公告)日:2010-03-02

    申请号:US11953422

    申请日:2007-12-10

    IPC分类号: H02M1/12 H02M1/14

    CPC分类号: H02M1/126 H02M3/28

    摘要: A power converter includes an output filter circuit including first and second inductive elements; a voltage source coupled to the output filter circuit, the voltage source for generating a voltage across the output filter circuit, the voltage including an alternating voltage component, the alternating voltage component causing the application of an alternating current to the first inductive element of the output filter circuit; and an attenuation filtering circuit. The attenuation filtering circuit includes a first magnetically coupled inductive arrangement for generating a first opposing alternating current in response to the alternating voltage applied to the first inductive element of the output filter circuit; a first combining element for combining the first opposing alternating current with the alternating current to partially cancel the alternating current, thereby producing an attenuated alternating current applied to the second inductive element of the output filter circuit; a second magnetically coupled inductive arrangement for generating a second opposing alternating current in response to the attenuated alternating current applied to the second inductive element of the output filter circuit; and a second combining element for combining the second opposing alternating current with the attenuated alternating current to substantially cancel the attenuated alternating current.

    摘要翻译: 功率转换器包括:输出滤波电路,包括第一和第二电感元件; 耦合到所述输出滤波器电路的电压源,用于产生所述输出滤波器电路两端的电压的所述电压源,所述电压包括交流电压分量,所述交流电压分量导致向所述输出的所述第一电感元件施加交流电 滤波电路; 和衰减滤波电路。 衰减滤波电路包括第一磁耦合电感装置,用于响应于施加到输出滤波器电路的第一电感元件的交流电压产生第一相对的交流电; 第一组合元件,用于将第一相对的交流电流与交流电流组合以部分地消除交流电流,从而产生施加到输出滤波器电路的第二电感元件的衰减的交流电; 第二磁耦合电感装置,用于响应于施加到输出滤波器电路的第二感应元件的衰减的交流电流产生第二相对的交流电; 以及第二组合元件,用于将第二相对交流电流与衰减的交流电流组合,以基本上抵消衰减的交流电流。

    Alternating current to direct current power conversion
    6.
    发明授权
    Alternating current to direct current power conversion 有权
    交流电流直流电源转换

    公开(公告)号:US08208274B2

    公开(公告)日:2012-06-26

    申请号:US13096005

    申请日:2011-04-28

    IPC分类号: H02M3/335 H02M7/5387

    摘要: An alternating current to direct current (AC to DC) power conversion system is provided. The system includes a rectifier configured to convert an input AC voltage to an initial pulsating DC voltage. The system also includes an inverter configured to convert the initial pulsating DC voltage to a converted AC voltage. The system further includes a plurality of transformers, each transformer including a primary winding paired to a secondary winding, wherein each of the primary windings is coupled in series with the other primary windings, wherein the series coupled primary windings are coupled to the inverter to receive respective portions of the converted AC voltage. The system also includes a plurality of bridges, each bridge coupled to a respective secondary winding configured to receive a respective portion of a transformed AC voltage from the respective secondary windings, and coupled in parallel to the other bridges to provide a combined DC output voltage.

    摘要翻译: 提供了直流(AC-DC)电力转换系统的交流电。 该系统包括被配置为将输入AC电压转换为初始脉动直流电压的整流器。 该系统还包括被配置为将初始脉动直流电压转换为转换的交流电压的逆变器。 该系统还包括多个变压器,每个变压器包括与次级绕组成对的初级绕组,其中每个初级绕组与其它初级绕组串联耦合,其中串联耦合初级绕组耦合到逆变器以接收 转换后的交流电压的各部分。 该系统还包括多个桥,每个桥耦合到相应的次级绕组,其被配置为从相应的次级绕组接收变换的AC电压的相应部分,并联耦合到其它桥以提供组合的DC输出电压。

    Ripple-current reduction schemes for AC converters
    7.
    发明授权
    Ripple-current reduction schemes for AC converters 失效
    交流转换器的纹波电流降低方案

    公开(公告)号:US07016205B2

    公开(公告)日:2006-03-21

    申请号:US10676898

    申请日:2003-10-01

    IPC分类号: H02M1/12

    摘要: An AC ripple current reduction circuit for an AC converter having: an AC voltage source at the input; a first capacitor across which the circuit output voltage is provided; a first, main inductor in series with the first capacitor and the input; an auxiliary circuit including a second capacitor and a transformer coupled to the main inductor, the secondary of the transformer being in series with the second capacitor; and a means for enabling the flow of a time varying voltage across the first and second capacitors that has a frequency much less than the ripple frequency of the current in the main inductor.

    摘要翻译: 一种用于AC转换器的AC纹波电流降低电路,具有:输入端的AC电压源; 提供电路输出电压的第一电容器; 第一个主电感器与第一个电容器和输入端串联; 辅助电路,包括第二电容器和耦合到主电感器的变压器,变压器的次级与第二电容器串联; 以及用于使第一和第二电容器之间的时变电流的流动的频率远小于主电感器中的电流的纹波频率的装置。

    Ripple cancellation circuit for ultra-low-noise power supplies
    8.
    发明授权
    Ripple cancellation circuit for ultra-low-noise power supplies 有权
    用于超低噪声电源的纹波消除电路

    公开(公告)号:US06693805B1

    公开(公告)日:2004-02-17

    申请号:US10209034

    申请日:2002-07-31

    IPC分类号: H02M114

    摘要: A low-ripple power supply includes a storage capacitor coupled across load terminals, and an inductor connected to a source of voltage including a varying or pulsatory component and a direct component, for causing a flow of current to said capacitor through the inductor. The varying component of the inductor current flowing in the capacitor results in ripple across the load. A winding is coupled to the inductor for generating a surrogate of the varying inductor current. The surrogate current is added to the inductor current to cancel or reduce the magnitude of the varying current component. This cancellation effectively reduces the varying current component flowing in the storage capacitor, which in turn reduces the ripple appearing across the load terminals.(121)

    摘要翻译: 低纹波电源包括耦合在负载端子之间的存储电容器和连接到包括变化或脉动分量和直接分量的电压源的电感器,用于通过电感器引起电流流向所述电容器。 在电容器中流动的电感电流的变化分量导致负载上的纹波。 绕组耦合到电感器以产生变化的电感器电流的替代。 替代电流被加到电感电流以消除或减小变化电流分量的大小。 这种消除有效地减少了在存储电容器中流动的变化的电流分量,这反过来又减少了跨负载端子出现的波动。(121)

    High current inductor and method for making same
    9.
    发明授权
    High current inductor and method for making same 有权
    大电流电感及其制作方法

    公开(公告)号:US06583705B2

    公开(公告)日:2003-06-24

    申请号:US09682487

    申请日:2001-09-07

    IPC分类号: H01F2728

    摘要: A high current inductor is constructed using two single-sided or double-sided printed circuit boards having patterned copper traces thereon, a magnetic toroidal core, and multiple interconnecting wires extending between the boards. Multiple turns for the inductor are created by suitably configuring the copper traces on the printed circuit boards. Vias are employed on each circuit board for electrically interconnecting the boards to each other. Multiple thick, solid-gauge wires are situated in the vias in order to provide a very large copper area, thus providing high current carrying capability.

    摘要翻译: 使用其上具有图案化铜迹线的两个单面或双面印刷电路板,磁环形磁芯和在电路板之间延伸的多个互连电线构成高电流电感器。 通过适当地配置印刷电路板上的铜迹线来创建电感器的多个匝数。 每个电路板采用通孔,用于将电路板彼此电连接。 为了提供非常大的铜面积,通孔中设有多条厚实的电线,从而提供高的载流能力。

    ALTERNATING CURRENT TO DIRECT CURRENT POWER CONVERSION
    10.
    发明申请
    ALTERNATING CURRENT TO DIRECT CURRENT POWER CONVERSION 有权
    替代电流直接电流转换

    公开(公告)号:US20120092898A1

    公开(公告)日:2012-04-19

    申请号:US13096005

    申请日:2011-04-28

    IPC分类号: H02M3/335

    摘要: An alternating current to direct current (AC to DC) power conversion system is provided. The system includes a rectifier configured to convert an input AC voltage to an initial pulsating DC voltage. The system also includes an inverter configured to convert the initial pulsating DC voltage to a converted AC voltage. The system further includes a plurality of transformers, each transformer including a primary winding paired to a secondary winding, wherein each of the primary windings is coupled in series with the other primary windings, wherein the series coupled primary windings are coupled to the inverter to receive respective portions of the converted AC voltage. The system also includes a plurality of bridges, each bridge coupled to a respective secondary winding configured to receive a respective portion of a transformed AC voltage from the respective secondary windings, and coupled in parallel to the other bridges to provide a combined DC output voltage.

    摘要翻译: 提供了直流(AC-DC)电力转换系统的交流电。 该系统包括被配置为将输入AC电压转换为初始脉动直流电压的整流器。 该系统还包括被配置为将初始脉动直流电压转换为转换的交流电压的逆变器。 该系统还包括多个变压器,每个变压器包括与次级绕组成对的初级绕组,其中每个初级绕组与其它初级绕组串联耦合,其中串联耦合初级绕组耦合到逆变器以接收 转换后的交流电压的各部分。 该系统还包括多个桥,每个桥耦合到相应的次级绕组,其被配置为从相应的次级绕组接收变换的AC电压的相应部分,并联耦合到其它桥以提供组合的DC输出电压。