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    ISOLATED GATE DRIVER, TRACTION INVERTER, AND ELECTRIC VEHICLE
    1.
    发明公开
    ISOLATED GATE DRIVER, TRACTION INVERTER, AND ELECTRIC VEHICLE 审中-公开

    公开(公告)号：US20230420930A1

    公开(公告)日：2023-12-28

    申请号：US18462748

    申请日：2023-09-07

    Applicant: ROHM CO., LTD.

    Inventor： Toshiyuki ISHIKAWA

    IPC: H02H7/122 ,  H02M7/537 ,  H02M1/08

    CPC classification number: H02H7/122 ,  H02M1/08 ,  H02M7/537

    Abstract: An isolated gate driver has: a register that stores the adjustment data read from a non-volatile memory; a gate driving circuit that drives the gate of a switching element with a characteristic set based on a value stored in the register; a fault detector that performs fault detection for other than the non-volatile memory; an error detection-correction circuit that performs error detection and error correction on the adjustment data written to the non-volatile memory; a first external terminal for output of the result of fault detection; a second external terminal for output of the result of error detection; and a fault controller that, if a one-bit error is detected in the adjustment data, brings the second external terminal into an error-indicating output state and continues with normal operation of the gate driving circuit and, if a two-or-more-bit error is detected in the adjustment data, forcibly stops the gate driving circuit.

    ISOLATED GATE DRIVER, TRACTION INVERTER, AND ELECTRIC VEHICLE
    3.
    发明公开
    ISOLATED GATE DRIVER, TRACTION INVERTER, AND ELECTRIC VEHICLE 审中-公开

    公开(公告)号：US20230421050A1

    公开(公告)日：2023-12-28

    申请号：US18454277

    申请日：2023-08-23

    Applicant: ROHM CO., LTD.

    Inventor： Toshiyuki ISHIKAWA

    IPC: H02M1/088 ,  H02M7/5387

    CPC classification number: H02M1/088 ,  H02M7/53871 ,  H02M1/325

    Abstract: An isolated gate driver has: a switch connection terminal configured to have a switching element externally connected to it; a non-volatile memory having adjustment data written to it; a register configured to store the adjustment data read from the non-volatile memory; a gate driving circuit configured to drive the gate of the switching element with a characteristic set based on a value stored in the register; and a control logic circuit configured to keep the gate driving circuit in a disabled state until completion of reading the adjustment data from the non-volatile memory and storing it in the register.

    SIGNAL TRANSMISSION CIRCUIT AND VEHICLE
    4.
    发明申请
    SIGNAL TRANSMISSION CIRCUIT AND VEHICLE 审中-公开

    公开(公告)号：US20180026611A1

    公开(公告)日：2018-01-25

    申请号：US15652514

    申请日：2017-07-18

    Applicant: Rohm Co., Ltd.

    Inventor： Toshiyuki ISHIKAWA ,  Daiki YANAGISHIMA ,  Yoshizo OSUMI

    IPC: H03K3/037 ,  H03K19/20 ,  B60L11/18

    CPC classification number: H03K3/037 ,  B60L50/51 ,  H03K17/61 ,  H03K17/687 ,  H03K17/691 ,  H03K19/20 ,  H04L25/0266 ,  H04L25/493

    Abstract: A signal transmission circuit which transmits N (N is a natural number of 2 or more) input signals includes a transmission signal generation portion, 2N transmission portions and an output portion. The transmission signal generation portion generates 2N transmission signals according to the N input signals. The 2N transmission portions respectively transmit the 2N transmission signals output from the transmission signal generation portion while performing electrical insulation. The output portion generates and outputs, based on the 2N transmission signals transmitted by the 2N transmission portions, N output signals that respectively indicate the N input signals. The transmission signal generation portion generates a pulse according to the N input signals and incorporates the pulse in only one of the 2N transmission signals at the same time.

    Signal Transfer Device
    5.
    发明申请
    Signal Transfer Device 有权
    信号传输装置

    公开(公告)号：US20140361810A1

    公开(公告)日：2014-12-11

    申请号：US14297878

    申请日：2014-06-06

    Applicant: Rohm Co., Ltd.

    Inventor： Akio SASABE ,  Hirotaka TAKIHARA ,  Makoto IKENAGA ,  Toshiyuki ISHIKAWA

    IPC: H04L25/02

    CPC classification number: H04L25/0274 ,  H03K19/16

    Abstract: A signal-transferring device having a first circuit and a second circuit that operate on different ground references, and a third circuit for transferring signals while providing insulation between the first circuit and the second circuit. The second circuit switches a logic level of an output signal in accordance with the logic level of an input signal notified by the first circuit, and notifies the first circuit about the logic level of the output signal. The first circuit notifies the second circuit about the logic level of the input signal not only when the logic level of the input signal has been switched, but also when the logic level of the output signal notified by the second circuit does not match the logic level of the input signal.

    Abstract translation: 一种具有在不同接地基准上工作的第一电路和第二电路的信号传送装置，以及用于在第一电路和第二电路之间提供绝缘的同时传送信号的第三电路。 第二电路根据由第一电路通知的输入信号的逻辑电平切换输出信号的逻辑电平，并将第一电路通知输出信号的逻辑电平。 第一电路不仅在输入信号的逻辑电平已被切换时通知第二电路关于输入信号的逻辑电平，而且当第二电路通知的输出信号的逻辑电平与逻辑电平不匹配时， 的输入信号。

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