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公开(公告)号：US20180191168A1
公开(公告)日：2018-07-05
申请号：US15861898
申请日：2018-01-04
Applicant: NATIONAL INSTRUMENTS CORPORATION
Inventor： John G. Banaska , Chin-Hong Cheah
CPC classification number: H02J3/46 , G05F1/12 , H02M1/4208 , H02M3/33569 , H02M2001/0058
Abstract: A multiphase power converter may include a number of LLC converter stages coupled in a parallel interleaved current sharing configuration. The total current provided by the multiphase power converter may be balanced between the different LLC converter stages by sensing a respective output current in each LLC converter stage, with the sensed output current of one of the LLC converter stages used as a reference current, and performing one or more adjustments for each LLC converter stage (other than the reference LLC converter stage), based on the sensed output currents. The adjustments may include adjusting the input voltage provided to the LLC converter stage, the resonant frequency of the LLC converter stage, and/or the effective resonance impedance of the LLC converter stage. The ability to sense the phase current or power makes it possible to achieve balance between different LLC converter stages in a multiphase LLC-stage current sharing configuration.
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公开(公告)号：US20180269772A1
公开(公告)日：2018-09-20
申请号：US15923438
申请日：2018-03-16
Applicant: NATIONAL INSTRUMENTS CORPORATION
Inventor： John G. Banaska , Chin-Hong Cheah
IPC: H02M1/00
CPC classification number: H02M1/00 , H02M3/285 , H02M3/33507 , H02M2001/0003 , H02M2001/0058 , Y02B70/1491
Abstract: A multiphase current-sharing configuration may include at least two power supplies providing respective output-currents in the current-sharing configuration. One or more of the power supplies may itself be a multiphase power supply. A first power supply of the current-sharing configuration may detect a phase difference between an external control signal provided to the first power supply to control the output voltage of the first power supply, and an internal control signal provided by a VCO of the first power supply. The phase difference may be provided to an integrator to cause the internal control signal to track the external control signal when the external control signal is available, and maintain a present operating frequency of the internal control signal in case the external control signal is lost, in which case the internal control signal may be used to uninterruptedly control the output voltage of the first power supply.
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Patent Agency Ranking
公开(公告)号：US12149176B2
公开(公告)日：2024-11-19
申请号：US17535022
申请日：2021-11-24
Applicant: NATIONAL INSTRUMENTS CORPORATION
Inventor： John G. Banaska , Chin-Hong Cheah
Abstract: A multiphase current-sharing configuration may include at least two power supplies providing respective output-currents in the current-sharing configuration. One or more of the power supplies may itself be a multiphase power supply. A first power supply of the current-sharing configuration may detect a phase difference between an external control signal provided to the first power supply to control the output voltage of the first power supply, and an internal control signal provided by a VCO of the first power supply. The phase difference may be provided to an integrator to cause the internal control signal to track the external control signal when the external control signal is available, and maintain a present operating frequency of the internal control signal in case the external control signal is lost, in which case the internal control signal may be used to uninterruptedly control the output voltage of the first power supply.
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公开(公告)号：US20220085721A1
公开(公告)日：2022-03-17
申请号：US17535022
申请日：2021-11-24
Applicant: NATIONAL INSTRUMENTS CORPORATION
Inventor： John G. Banaska , Chin-Hong Cheah
Abstract: A multiphase current-sharing configuration may include at least two power supplies providing respective output-currents in the current-sharing configuration. One or more of the power supplies may itself be a multiphase power supply. A first power supply of the current-sharing configuration may detect a phase difference between an external control signal provided to the first power supply to control the output voltage of the first power supply, and an internal control signal provided by a VCO of the first power supply. The phase difference may be provided to an integrator to cause the internal control signal to track the external control signal when the external control signal is available, and maintain a present operating frequency of the internal control signal in case the external control signal is lost, in which case the internal control signal may be used to uninterruptedly control the output voltage of the first power supply.
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公开(公告)号：US09651585B2
公开(公告)日：2017-05-16
申请号：US14133167
申请日：2013-12-18
Applicant: NATIONAL INSTRUMENTS CORPORATION
Inventor： John G. Banaska , Pablo Limon
CPC classification number: G01R19/0092 , G01R3/00 , H05K1/0219 , H05K1/0268 , H05K2201/09618 , Y10T29/49147
Abstract: System and methods for use and fabrication of a printed circuit board (PCB). The PCB may include a node and a plurality of rows of vias that may be configured to establish a plurality of current pathways away from the node. The node may be a sensitive node and the plurality of current pathways may reduce leakage current at the node responsive to a signal applied to the node. Each row of the plurality of rows of vias may be offset with respect to adjacent rows of vias in a horizontal plane of the PCB. The PCB may have multiple layers and the node may be on an exterior surface layer or an interior layer. The vias may be mirco-vias, buried-vias, or through-vias.
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公开(公告)号：US20150168463A1
公开(公告)日：2015-06-18
申请号：US14133167
申请日：2013-12-18
Applicant: NATIONAL INSTRUMENTS CORPORATION
Inventor： John G. Banaska , Pablo Limon
CPC classification number: G01R19/0092 , G01R3/00 , H05K1/0219 , H05K1/0268 , H05K2201/09618 , Y10T29/49147
Abstract: System and methods for use and fabrication of a printed circuit board (PCB). The PCB may include a node and a plurality of rows of vias that may be configured to establish a plurality of current pathways away from the node. The node may be a sensitive node and the plurality of current pathways may reduce leakage current at the node responsive to a signal applied to the node. Each row of the plurality of rows of vias may be offset with respect to adjacent rows of vias in a horizontal plane of the PCB. The PCB may have multiple layers and the node may be on an exterior surface layer or an interior layer. The vias may be mirco-vias, buried-vias, or through-vias.
Abstract translation: 印刷电路板（PCB）的使用和制造的系统和方法。 PCB可以包括可以被配置为建立远离节点的多个电流路径的节点和多个通孔行。 节点可以是敏感节点，并且多个当前路径可以响应于施加到节点的信号来减少节点处的泄漏电流。 多行通孔中的每一行可以相对于PCB的水平平面中的相邻的通孔行而偏移。 PCB可以具有多个层，并且节点可以在外表面层或内层上。 通孔可以是通孔，通孔或通孔。
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公开(公告)号：US11211869B2
公开(公告)日：2021-12-28
申请号：US15923438
申请日：2018-03-16
Applicant: NATIONAL INSTRUMENTS CORPORATION
Inventor： John G. Banaska , Chin-Hong Cheah
Abstract: A multiphase current-sharing configuration may include at least two power supplies providing respective output-currents in the current-sharing configuration. One or more of the power supplies may itself be a multiphase power supply. A first power supply of the current-sharing configuration may detect a phase difference between an external control signal provided to the first power supply to control the output voltage of the first power supply, and an internal control signal provided by a VCO of the first power supply. The phase difference may be provided to an integrator to cause the internal control signal to track the external control signal when the external control signal is available, and maintain a present operating frequency of the internal control signal in case the external control signal is lost, in which case the internal control signal may be used to uninterruptedly control the output voltage of the first power supply.
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