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    DIRECT-CURRENT POWER SUPPLY, REFRIGERATION CYCLER, AIR CONDITIONER, AND REFRIGERATOR
    2.
    发明申请
    DIRECT-CURRENT POWER SUPPLY, REFRIGERATION CYCLER, AIR CONDITIONER, AND REFRIGERATOR 有权

    公开(公告)号：US20220399828A1

    公开(公告)日：2022-12-15

    申请号：US17776736

    申请日：2020-02-20

    申请人： Mitsubishi Electric Corporation

    发明人： Koyo SHIMIZU ,  Shinichiro URA ,  Takuto YAMASHITA ,  Keisuke UEMURA

    IPC分类号： H02M7/219 ,  F25B31/02

    摘要： A direct-current power supply includes: a rectifier circuit in which switching elements are bridge-connected; a reactor; a gate circuitry that drives the switching elements; and a gate circuitry that drives the switching elements. A connection point between the switching element and the switching element is connected to an alternating-current power supply via the reactor, and a connection point between the switching element and the switching element is connected to the alternating-current power supply without via the reactor. A time during which the gate circuitry turns on the switching elements is longer than a time during which the gate circuitry turns on the switching elements.

    POWER CONVERSION DEVICE AND MOTOR DRIVE DEVICE INCLUDING POWER CONVERSION DEVICE
    3.
    发明申请
    POWER CONVERSION DEVICE AND MOTOR DRIVE DEVICE INCLUDING POWER CONVERSION DEVICE 有权
    电力转换装置和包括电力转换装置的电动机驱动装置

    公开(公告)号：US20160094177A1

    公开(公告)日：2016-03-31

    申请号：US14782608

    申请日：2013-04-12

    申请人： MITSUBISHI ELECTRIC CORPORATION

    发明人： Takuya SHIMOMUGI ,  Keisuke UEMURA ,  Koichi ARISAWA ,  Yosuke SHINOMOTO ,  Shigeo UMEHARA ,  Shinichiro URA ,  Makoto TANIKAWA

    IPC分类号： H02P27/08 ,  H02M7/5395 ,  H02M7/501

    CPC分类号： H02P27/085 ,  H02M7/501 ,  H02M7/53875 ,  H02M7/5395 ,  H02M2001/0009 ,  H02P2205/01

    摘要： A power conversion device includes a power-supply shunt resistance that is provided between an inverter and the negative-voltage side of a DC power supply, and respective-phase lower-arm shunt resistances that are provided between the power-supply shunt resistance and respective-phase lower-arm switching elements. Respective-phase lower-arm voltages, that are respective voltages between the negative-voltage side of the DC power supply and connection points between the respective-phase lower-arm switching elements and the respective-phase lower-arm shunt resistances, are detected to calculate respective-phase currents that flow through a load device in accordance with detection values of the respective-phase lower-arm voltages, and to control a carrier frequency of a carrier signal, which serves as a reference frequency of each drive signal, according to a change in a specific control parameter A.

    摘要翻译： 电力转换装置包括设置在逆变器和直流电源的负电压侧之间的电源分流电阻以及设置在电源分流电阻和相应的电源分流电阻之间的各自的相位下臂分流电阻 相位下臂开关元件。 检测直流电源的负电压侧和各相下臂开关元件与各相下臂分路电阻之间的连接点之间的各电压的各相下臂电压， 根据各相位下臂电压的检测值，计算流经负载装置的各相电流，并根据下述方式控制作为各驱动信号的基准频率的载波信号的载波频率 特定控制参数A的更改。

    ELECTRIC MOTOR DRIVE DEVICE AND OUTDOOR UNIT OF AIR CONDITIONER
    5.
    发明申请
    ELECTRIC MOTOR DRIVE DEVICE AND OUTDOOR UNIT OF AIR CONDITIONER 有权

    公开(公告)号：US20210234489A1

    公开(公告)日：2021-07-29

    申请号：US17268723

    申请日：2018-09-07

    申请人： Mitsubishi Electric Corporation

    发明人： Shun MIYAMORI ,  Shinichiro URA

    IPC分类号： H02P25/18 ,  F24F1/20

    摘要： An electric motor drive device includes: a main substrate mounted with a power supply circuit that generates, on the basis of alternating-current power supplied from an alternating-current power supply, a drive power to drive a compressor motor; a plurality of connection switching relays that perform switching between connections for the compressor motor; a small substrate mounted with the connection switching relays; a relay drive circuit that switches the connection switching relays; lead wires that connect the compressor motor and the small substrate to the power supply circuit; and lead wires that connect the small substrate and the compressor motor.

    SWITCH DEVICE, POWER CONVERSION DEVICE, MOTOR DRIVE DEVICE, AIR BLOWER, COMPRESSOR, AIR CONDITIONER, REFRIGERATOR, AND FREEZER
    7.
    发明申请
    SWITCH DEVICE, POWER CONVERSION DEVICE, MOTOR DRIVE DEVICE, AIR BLOWER, COMPRESSOR, AIR CONDITIONER, REFRIGERATOR, AND FREEZER 有权
    开关装置，电力转换装置，电机驱动装置，空气鼓风机，压缩机，空调，制冷器和冷冻机

    公开(公告)号：US20160233783A1

    公开(公告)日：2016-08-11

    申请号：US15022577

    申请日：2013-09-25

    申请人： MITSUBISHI ELECTRIC CORPORATION

    发明人： Keisuke UEMURA ,  Takuya SHIMOMUGI ,  Koichi ARISAWA ,  Yosuke SHINOMOTO ,  Shigeo UMEHARA ,  Shinichiro URA ,  Makoto TANIKAWA

    IPC分类号： H02M7/04 ,  H02M7/44 ,  H02M1/32

    CPC分类号： H02M7/04 ,  H02M1/08 ,  H02M1/32 ,  H02M7/44 ,  H02M7/5387

    摘要： A switch device in a power conversion device is located between a power supply and a load, wherein the power conversion device includes a shunt resistance and a switching element and is capable of executing stable control, the switch device includes a switching element that includes a gate terminal, a gate drive circuit that applies a drive voltage Vcc to a gate terminal of the switching element, and a control unit that generates a drive signal to the gate drive circuit, wherein a value obtained by subtracting a threshold voltage Vth of the switching element from the drive voltage Vcc to be applied to the gate terminal of the switching element is greater than a product of a resistance value Rsh+Rdc from an emitter of the switching element to a negative electrode of the gate drive circuit and a maximum current value Ipeak that flows through the switching element.

    摘要翻译： 电力转换装置中的开关装置位于电源和负载之间，其中电力转换装置包括分流电阻和开关元件，并且能够执行稳定的控制，开关装置包括开关元件，其包括栅极 端子，将驱动电压Vcc施加到开关元件的栅极端子的栅极驱动电路，以及向栅极驱动电路产生驱动信号的控制单元，其中通过减去开关元件的阈值电压Vth获得的值 从施加到开关元件的栅极端子的驱动电压Vcc大于从开关元件的发射极到栅极驱动电路的负极的电阻值Rsh + Rdc的乘积和最大电流值Ipeak 其流过开关元件。

    POWER CONVERSION DEVICE AND MOTOR DRIVING DEVICE
    8.
    发明申请
    POWER CONVERSION DEVICE AND MOTOR DRIVING DEVICE 有权
    电力转换装置和电动机驱动装置

    公开(公告)号：US20160036350A1

    公开(公告)日：2016-02-04

    申请号：US14779991

    申请日：2013-04-12

    申请人： MITSUBISHI ELECTRIC CORPORATION

    发明人： Keisuke UEMURA ,  Takuya SHIMOMUGI ,  Koichi ARISAWA ,  Yosuke SHINOMOTO ,  Shigeo UMEHARA ,  Shinichiro URA ,  Makoto TANIKAWA

    IPC分类号： H02M7/5387 ,  H02P6/00

    CPC分类号： H02M7/53871 ,  H02M7/53873 ,  H02M7/53875 ,  H02M2001/0009 ,  H02M2007/53876 ,  H02P27/06

    摘要： The power conversion device includes a power-supply shunt resistor provided between a negative voltage side of a DC power supply and an inverter and phase lower-arm shunt resistors respectively provided between phase lower-arm switching elements of two arms among three arms and the power-supply shunt resistor. The power conversion device detects voltages between connection points of the phase lower-arm switching elements and the phase lower-arm shunt resistors and a negative voltage side of the DC power supply and calculates, on the basis of detection values of the voltages, phase currents flowing to a load device.

    摘要翻译： 电力转换装置包括设置在直流电源的负电压侧和逆变器之间的电源分流电阻器和分别设置在三个臂之间的两个臂的相位下臂开关元件之间的相位下臂分流电阻器，并且电力 - 分流电阻。 电力转换装置检测相位下臂开关元件和相位下臂分流电阻的连接点与直流电源的负电压侧之间的电压，并根据电压的检测值，相位电流 流入负载设备。