利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

9 条记录 (耗时 0.018 秒)

    POWER MODULE
    2.
    发明申请
    POWER MODULE 审中-公开

    公开(公告)号：US20200035656A1

    公开(公告)日：2020-01-30

    申请号：US16591183

    申请日：2019-10-02

    申请人： ROHM CO., LTD.

    发明人： Tatsuya MIYAZAKI ,  Hirotaka OTAKE

    IPC分类号： H01L25/16 ,  H01L23/00 ,  H02M7/5387 ,  H02M1/08 ,  H02M7/00

    摘要： Power module includes: first transistors Q1, Q4 forming at least one half bridge, and disposed at upper and lower arms thereof; second transistors QM1, QM4 of which drains are respectively connected to gates G1 and G4 sides of the first transistors, and sources are respectively connected to the sources S1, S4 sides thereof; source signal wiring patterns SSP1, SSP4 respectively connected to the sources S1, S4 of the first transistors; first connected conductors MSW1, MSW4 for respectively connecting between the source signal wiring patterns and the sources of the second transistors; second gate signal wiring patterns MGP1, MGP4 respectively connected to gates MG1, MG4 of the second transistors; and second connected conductors MGW1, MGW4 for respectively connecting between the gate signal wiring patterns and the gates of the second transistors. Lengths of the first connection conductors are respectively equal to or shorter than lengths of the second connection conductors.

    SEMICONDUCTOR DEVICE
    4.
    发明申请
    SEMICONDUCTOR DEVICE 有权

    公开(公告)号：US20230132511A1

    公开(公告)日：2023-05-04

    申请号：US17910460

    申请日：2021-03-15

    申请人： ROHM CO., LTD.

    发明人： Yuta OKAWAUCHI ,  Yasuo KANETAKE ,  Tatsuya MIYAZAKI ,  Takukazu OTSUKA

    IPC分类号： H01L29/66 ,  H01L29/78 ,  H01L29/778 ,  H01L29/08

    摘要： A semiconductor device includes a first and a second switching element, a first and a second conductive member, and a capacitor. The first switching element has a first element obverse surface and a first element reverse surface facing away from each other in a first direction. The second switching element has a second element obverse surface and a second element reverse surface facing away from each other in the first direction. The first and second conductive members are spaced apart in a second direction orthogonal to the first direction. The capacitor has a first and a second connection terminal. The first and second switching elements are connected in series, forming a bridge. The first and second connection terminals are electrically connected to opposite ends of the bridge. The capacitor and the first switching element are on the first conductive member, the second switching element on the second conductive member.

    ELECTRIC POWER CONVERSION DEVICE AND CONTROL DEVICE THEREFOR
    6.
    发明申请
    ELECTRIC POWER CONVERSION DEVICE AND CONTROL DEVICE THEREFOR 有权

    公开(公告)号：US20220021299A1

    公开(公告)日：2022-01-20

    申请号：US17294112

    申请日：2019-11-29

    申请人： Rohm Co., Ltd.

    发明人： Tatsuya MIYAZAKI ,  Yuta OKAWAUCHI ,  Hirotaka OTAKE ,  Mamoru TSURUYA

    IPC分类号： H02M1/42 ,  H02M7/162 ,  H02M1/00 ,  H02M3/335 ,  H02M7/5395

    摘要： A control device 100 is used as a principle controller of an electric power conversion device 1 having a switch circuit 10 including transistors M1-M4. The control device: subtracts, from a reference signal REF set in accordance with an operating mode MODE (PFC/INV) of the electric power conversion device 1, a product signal (K×I) obtained by multiplying an object-of-control electric current I of the switch circuit 10 by a prescribed coefficient K; and generates, on the basis of the computation result (=REF−K×I), control signals S1-S4 (and consequently, gate signals G1-G4) for the transistors M1-M4.

    AC POWER SUPPLY DEVICE
    7.
    发明申请
    AC POWER SUPPLY DEVICE 有权

    公开(公告)号：US20210234474A1

    公开(公告)日：2021-07-29

    申请号：US16967552

    申请日：2018-11-14

    申请人： ROHM CO., LTD.

    发明人： Hirotaka OTAKE ,  Tatsuya MIYAZAKI ,  Mamoru TSURUYA

    IPC分类号： H02M7/487 ,  H02M1/42 ,  H02M7/5395

    摘要： AC power supply device 1 includes input capacitors 11 and 12 connected at a neutral point X of a three-phase output, transistor bridges 20* (where * denotes U, V, and/or W) each consisting of PWM control badges 20*1 and 20*2 each including two switch elements, transformers T* connected to output terminals of the transistor bridges 20*, reactors Ls* connected to the transformers T*, smoothing capacitors 40* connected to the reactors Ls*. The transformers T* are autotransformers including a core 33* and windings 31* and 32* coupled with each other via the core 33*. One ends of the windings are connected to output terminals of the PWM control bridges 20*1 and 20*2, respectively, while the other terminals are connected to the reactors Ls*. The windings 31* and 32* are wound in such directions that magnetic fluxes generated in the core 33* are cancelled with each other.