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13 条记录 (耗时 0.013 秒)

    SWITCHING CIRCUIT AND POWER CONVERTER
    1.
    发明公开
    SWITCHING CIRCUIT AND POWER CONVERTER 审中-公开

    公开(公告)号：US20240364213A1

    公开(公告)日：2024-10-31

    申请号：US18686713

    申请日：2022-03-29

    申请人： OMRON Corporation

    发明人： Noriyuki NOSAKA ,  Mamoru SUEKI ,  Satoshi IWAI ,  Junya MISHIMA ,  Hironori TAUCHI ,  Wataru OKADA

    IPC分类号： H02M1/44 ,  H02M1/08 ,  H02M7/537 ,  H03K17/16

    CPC分类号： H02M1/44 ,  H02M1/08 ,  H02M7/537 ,  H03K17/16

    摘要： A switching circuit including: a switching device configured to conduct or open a state between a drain terminal and a source terminal; a drive circuit including a first switch element and a second switch element, the drive circuit being configured to open and close the first switch element and the second switch element, and output a drive voltage for driving the switching device to the gate terminal via an output end; a clamp circuit including a third switch element configured to conduct between a reference potential of the drive circuit and a connection point of a path connecting the output end of the drive circuit and the gate terminal; and a ferrite inductor provided immediately near the output end of the drive circuit, and having one end connected to the output end and the other end connected to the connection point.

    OVERCURRENT PROTECTION CIRCUIT AND POWER CONVERTER
    2.
    发明公开
    OVERCURRENT PROTECTION CIRCUIT AND POWER CONVERTER 审中-公开

    公开(公告)号：US20230361555A1

    公开(公告)日：2023-11-09

    申请号：US18042622

    申请日：2021-08-20

    申请人： OMRON Corporation

    发明人： Noriyuki NOSAKA ,  Hironori TAUCHI ,  Takuro HASHIMOTO

    IPC分类号： H02H7/12

    CPC分类号： H02H7/12

    摘要： An overcurrent protection circuit includes a first switching element including a fourth terminal, a sixth terminal connected to a first terminal, and a fifth terminal, and a second switching element including a seventh terminal connected to the fifth terminal, an eighth terminal connected to the fourth terminal, and a ninth terminal. The first switching element electrically connects the sixth terminal and the fifth terminal in response to detecting a voltage value between the first terminal and a third terminal of the switching device exceeding a predetermined threshold based on the predetermined threshold voltage input into the fourth terminal. The second switching element electrically connects, in response to the sixth terminal and the fifth terminal of the first switching element being electrically connected to each other, the eighth terminal and the ninth terminal to lower the predetermined threshold voltage input into the fourth terminal of the first switching element.

    VOLTAGE BALANCE CIRCUIT FOR SEMICONDUCTOR DEVICES CONNECTED IN SERIES WITH EACH OTHER, SWITCHING CIRCUIT, AND POWER CONVERTER APPARATUS
    3.
    发明申请
    VOLTAGE BALANCE CIRCUIT FOR SEMICONDUCTOR DEVICES CONNECTED IN SERIES WITH EACH OTHER, SWITCHING CIRCUIT, AND POWER CONVERTER APPARATUS 有权

    公开(公告)号：US20220060101A1

    公开(公告)日：2022-02-24

    申请号：US17274991

    申请日：2019-03-14

    申请人： OMRON Corporation

    发明人： Noriyuki NOSAKA ,  Wataru OKADA ,  Chen CHEN ,  Takanori ISHII

    IPC分类号： H02M1/088 ,  H02M7/537

    摘要： A voltage balance circuit including first and second semiconductor devices connected in series with each other is provided with a first transformer having a primary winding and a secondary winding, a second transformer having a primary winding and a secondary winding. A pair of capacitors connected in series with each other and connected between the output terminals of the plurality of semiconductor devices. A first control signal is applied to the control electrode of the first semiconductor device via the primary winding of the first transformer. A second control signal is applied to the control electrode of the second semiconductor device via the primary winding of the second transformer, with one end of each secondary winding connected to each other.

    SEMICONDUCTOR CIRCUIT
    6.
    发明申请
    SEMICONDUCTOR CIRCUIT 有权

    公开(公告)号：US20230043841A1

    公开(公告)日：2023-02-09

    申请号：US17793847

    申请日：2020-12-16

    申请人： OMRON Corporation

    发明人： Noriyuki NOSAKA ,  Chen CHEN ,  Takanori ISHII ,  Wataru OKADA

    IPC分类号： H03K17/687

    摘要： A semiconductor circuit includes: a first inductor part configured to connect in series with a source electrode of a first semiconductor element; and a second inductor part configured to connect in series with a source electrode in a second semiconductor element that is configured to connect in parallel with the first semiconductor element; the first inductor part and the second inductor part are arranged to generate an induced electromotive force in the first inductor part and the second inductor part by way of a magnetic interaction so that the currents flowing in the first inductor part and the second inductor part are reinforced in the same direction.

    POWER CONVERTER APPARATUS PROVIDED WITH LOW-PASS FILTER CIRCUIT FOR REDUCING SWITCHING FREQUENCY COMPONENTS
    9.
    发明申请
    POWER CONVERTER APPARATUS PROVIDED WITH LOW-PASS FILTER CIRCUIT FOR REDUCING SWITCHING FREQUENCY COMPONENTS 有权

    公开(公告)号：US20210167692A1

    公开(公告)日：2021-06-03

    申请号：US17259500

    申请日：2019-03-11

    申请人： OMRON Corporation

    发明人： Noriyuki NOSAKA ,  Takeo NISHIKAWA ,  Wataru OKADA ,  Satoshi IWAI ,  Takanori ISHII ,  Gun ETO

    IPC分类号： H02M5/451 ,  H02M5/452

    摘要： A power converter apparatus is provided to include a switching circuit, and a filter circuit. The switching circuit generates an AC voltage by switching a DC voltage at a predetermining switching frequency, and the filter circuit converts the AC voltage from the switching circuit into the DC voltage by low-pass filtering the AC voltage. The filter circuit induces first and second bypass capacitors, and an inductor. The first bypass capacitor bypasses noise of a first frequency component of the AC voltage from the switching circuit, and the second bypass capacitor bypasses noise of a second frequency component of the AC voltage from the switching circuit, which is lower than the first frequency component. The inductor is inserted between the first and second bypass capacitors, and the inductance thereof is set so that a resonance frequency of the filter circuit is lower than the switching frequency by insertion of the inductor.

    DRIVING CIRCUIT FOR SWITCHING ELEMENT AND SWITCHING CIRCUIT
    10.
    发明公开
    DRIVING CIRCUIT FOR SWITCHING ELEMENT AND SWITCHING CIRCUIT 审中-公开

    公开(公告)号：US20230387912A1

    公开(公告)日：2023-11-30

    申请号：US18245930

    申请日：2021-09-07

    申请人： OMRON Corporation

    发明人： Noriyuki NOSAKA ,  Hironori TAUCHI ,  Takuro HASHIMOTO ,  Wataru OKADA ,  Mamoru SUEKI ,  Satoshi IWAI

    IPC分类号： H03K17/687 ,  H03K17/16 ,  H03K17/0412

    CPC分类号： H03K17/6871 ,  H03K17/168 ,  H03K17/04123

    摘要： A driving circuit that drives a switching element, the driving circuit includes: a controller that includes a first terminal connected to a gate terminal of the switching element and a second terminal connected to a source terminal of the switching element, and outputs a control signal from the first terminal to the gate terminal; a first capacitor and a first resistor connected in parallel; and a second capacitor and a second resistor connected in parallel, in which the first capacitor and the first resistor are connected in series to a first connecting wire for connecting the gate terminal and the first terminal on the gate terminal side of the first connecting wire, and in which the second capacitor and the second resistor are connected in series to the first connecting wire on the first terminal side of the first connecting wire.