公开(公告)号：US20160211737A1

公开(公告)日：2016-07-21

申请号：US15083853

申请日：2016-03-29

Applicant: Huawei Technologies Co., Ltd.

Inventor： Dan Yang ,  Qinghai Wang ,  Yongfa Zhu

IPC: H02M1/12 ,  H02M1/44 ,  H02M3/158

CPC classification number: H02M1/12 ,  H02M1/44

Abstract: An active filter, which may effectively suppress the low-frequency noise, includes a main circuit and a control circuit. The control circuit is configured to detect a first current output by a negative electrode of an input end of a conversion circuit to acquire an alternating current component (harmonic component) in the first current, and generate a control signal according to the harmonic component. The main circuit is configured to generate, under the control of the control signal, a second current having a phase opposite to a phase of the harmonic component, so that a source current formed after the first current and the second current pass through a power source is a direct current.

Abstract translation: 可以有效地抑制低频噪声的有源滤波器包括主电路和控制电路。 控制电路被配置为检测由转换电路的输入端的负电极输出的第一电流，以获得第一电流中的交流分量（谐波分量），并根据谐波分量产生控制信号。 主电路被配置为在控制信号的控制下产生具有与谐波分量的相位相反的相位的第二电流，使得在第一电流和第二电流之后形成的源极电流通过电源 是直流电。

公开(公告)号：US20140347825A1

公开(公告)日：2014-11-27

申请号：US14308960

申请日：2014-06-19

Applicant: Huawei Technologies Co., Ltd.

Inventor： Quan Guo ,  Yongfa Zhu ,  Chengzhang Han

IPC: H01F27/28 ,  H05K7/02

CPC classification number: H01F27/2804 ,  H01F5/00 ,  H01F17/0013 ,  H01F17/06 ,  H01F2027/2809 ,  H02M3/06 ,  H02M3/158 ,  H02M3/1588 ,  H05K1/0218 ,  H05K1/0298 ,  H05K1/115 ,  H05K1/165 ,  H05K1/18 ,  H05K3/429 ,  H05K7/02 ,  H05K2201/086 ,  H05K2201/10015 ,  Y02B70/1466

Abstract: The present invention discloses a circuit board, including a substrate and a magnetic core, where the magnetic core is embedded into the substrate, at least one turn of a winding conductor wound around the magnetic core is arranged on the substrate, each turn of the winding conductor includes a first end-surface conductor and a second end-surface conductor that are separately arranged on two ends of the magnetic core, and each turn of the winding conductor further includes a first side-surface conductor that penetrates through the magnetic core from an inner side of the magnetic core and a second side-surface conductor that penetrates through the magnetic core from an outer side of the magnetic core. The circuit board and the power conversion apparatus having the circuit board provided by the present invention, achieve larger inductance, save materials, and reduce cost for fabricating a power conversion apparatus.

Abstract translation: 本发明公开了一种电路板，包括基板和磁芯，其中磁芯嵌入基板中，缠绕在磁芯上的绕组导体的至少一圈设置在基板上，绕组的每一圈 导体包括分开布置在磁芯的两端上的第一端面导体和第二端面导体，绕组导体的每一圈还包括从第一侧面导体和第二端面导体穿过磁芯的第一侧面导体， 磁芯的内侧和从磁芯的外侧穿过磁芯的第二侧面导体。 具有本发明提供的电路板的电路板和电力转换装置实现更大的电感，节省材料并降低制造电力转换装置的成本。