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公开(公告)号：US20170059619A1
公开(公告)日：2017-03-02
申请号：US15119400
申请日：2015-02-04
Applicant: OMRON Corporation
Inventor： Hiroshi IMAI , Keiki MATSUURA , Hiroyuki TOKUSAKI , Mao OGIMOTO
IPC: G01R15/16
Abstract: There is provided a non-contact voltage measurement device which can precisely measure a measurement target voltage by suppressing a flow of a leakage current via a parasitic capacitance produced between an electric field shield and an electric circuit. A drive voltage applying unit applies a voltage generated from an output voltage of a low impedance unit of the electric circuit and equal to an input voltage of a high impedance unit, to a first electric field shield coated on the high impedance unit.
Abstract translation: 提供了一种非接触电压测量装置，其可以通过在电场屏蔽和电路之间产生的寄生电容来抑制泄漏电流的流动来精确地测量测量目标电压。 驱动电压施加单元将由电路的低阻抗单元的输出电压产生的电压等于高阻抗单元的输入电压施加到涂覆在高阻抗单元上的第一电场屏蔽。
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公开(公告)号：US20200014308A1
公开(公告)日：2020-01-09
申请号：US16490066
申请日：2017-11-21
Inventor： Hiroyuki TOKUSAKI , Takashi HYODO , Satoshi OGASAWARA , Wataru KODAKA
IPC: H02M5/293
Abstract: A power supply control device according to one or more embodiments may be provided to: control a power conversion device that has a configuration in which a resonant circuit is provided on an output side of a matrix converter including switching circuits having snubber elements, and that performs AC-AC conversion of output from a multi-phase AC power supply. The power supply control device performs control such that: the output current, which has a phase difference caused by the resonant circuit, is negative during a period in which an absolute value of a positive-going output voltage that is output from the power conversion device increases while the output current is positive during a period in which the absolute value of a negative-going output voltage increases; and a polarity of the output current does not change within a period in which the snubber element is discharged.
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Patent Agency Ranking
公开(公告)号：US20240104281A1
公开(公告)日：2024-03-28
申请号：US18254083
申请日：2021-09-14
Applicant: OMRON Corporation
Inventor： Liangyu SHEN , Takeshi KIRIBUCHI , Takeshi ASHIDA , Hiroyuki TOKUSAKI , Masashi DOI
IPC: G06F30/367
CPC classification number: G06F30/367 , G06F2119/06
Abstract: A design assist device assists with designing of a power supply system to supply and distribute power from a power supply and a capacitor connected parallel to each other to a plurality of load devices through a power supply path combining a plurality of power cables. The design assist device includes a calculator and an outputter. The calculator calculates time-series data about a current flowing through the capacitor based on configuration information representing an overall configuration of the power supply path and operation pattern information representing an operation pattern of each of the plurality of load devices, and calculates, based on the time-series data about the current, a recommended capacitance being a capacitance recommended for the capacitor. The outputter outputs at least information about the recommended capacitance for the capacitor.
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公开(公告)号：US20240235437A9
公开(公告)日：2024-07-11
申请号：US18547806
申请日：2021-12-20
Applicant: OMRON CORPORATION
Inventor： Masashi DOI , Takeo NISHIKAWA , Takeshi ASHIDA , Hiroyuki TOKUSAKI , Liangyu SHEN
IPC: H02P5/74
CPC classification number: H02P5/74 , H02P2209/07
Abstract: A motor controller includes a plurality of inverters that supply power to a corresponding motor of a plurality of motors through pulse width modulation control, a direct current power supply that supplies power to the plurality of inverters, and a capacitor connected parallel to the direct current power supply. Each of the plurality of inverters is categorized into one of a plurality of groups based on a switching frequency. All inverters in each of the groups have corresponding carrier signals being triangular wave signals determined based on a reference frequency assigned to the group. At least one of the triangular wave signals has at least one of a frequency or a phase different from a frequency or a phase of another triangular wave signal of the triangular wave signals.
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公开(公告)号：US20240136959A1
公开(公告)日：2024-04-25
申请号：US18547806
申请日：2021-12-20
Applicant: OMRON CORPORATION
Inventor： Masashi DOI , Takeo NISHIKAWA , Takeshi ASHIDA , Hiroyuki TOKUSAKI , Liangyu SHEN
IPC: H02P5/74
CPC classification number: H02P5/74 , H02P2209/07
Abstract: A motor controller includes a plurality of inverters that supply power to a corresponding motor of a plurality of motors through pulse width modulation control, a direct current power supply that supplies power to the plurality of inverters, and a capacitor connected parallel to the direct current power supply. Each of the plurality of inverters is categorized into one of a plurality of groups based on a switching frequency. All inverters in each of the groups have corresponding carrier signals being triangular wave signals determined based on a reference frequency assigned to the group. At least one of the triangular wave signals has at least one of a frequency or a phase different from a frequency or a phase of another triangular wave signal of the triangular wave signals.
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公开(公告)号：US20200235674A1
公开(公告)日：2020-07-23
申请号：US16489703
申请日：2017-11-21
Inventor： Hiroyuki TOKUSAKI , Takashi HYODO , Satoshi OGASAWARA , Wataru KODAKA
Abstract: A power supply control device according to one or more embodiments may be provided, in which a power conversion device has a configuration in which a resonant circuit is provided on an output side of a matrix converter using switching circuits including snubber elements so as to perform AC-AC conversion of output from a multi-phase AC power supply. The power conversion device is controlled to make an amplitude of an output current, a phase of the output current and an instantaneous reactive power as close to a control target as possible. The amplitude and the phase of the output current and the instantaneous reactive power are derived based on: an input voltage and a phase of a multi-phase current input to the power conversion device; and characteristics of the resonant circuit.
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公开(公告)号：US20170067939A1
公开(公告)日：2017-03-09
申请号：US15122545
申请日：2015-02-04
Applicant: OMRON CORPORATION
Inventor： Hiroshi IMAI , Keiki MATSUURA , Hiroyuki TOKUSAKI , Mao OGIMOTO , Goro KAWAKAMI , Kohei TOMITA , Atsuhiro OKAMURA
IPC: G01R15/16
CPC classification number: G01R15/16 , G01R1/07 , G01R15/165
Abstract: Provided is a non-contact voltage measuring device capable of measuring, with given accuracy, measurement target voltages applied to various conducting wires having respective different shapes. An inner electrode which is deformable depending on a shape of a wire “w” is electrically connected, via a connecting section, to an outer electrode fixed to an electric field shield.
Abstract translation: 提供一种能够以给定精度测量施加到各种不同形状的各种导线的测量目标电压的非接触式电压测量装置。 根据导线“w”的形状可变形的内部电极通过连接部分电连接到固定在电场屏蔽上的外部电极。
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