公开(公告)号：US07944720B2

公开(公告)日：2011-05-17

申请号：US12192007

申请日：2008-08-14

申请人： Takahiro Suzuki ,  Yasuo Notohara ,  Tsunehiro Endo ,  Yuji Mori

发明人： Takahiro Suzuki ,  Yasuo Notohara ,  Tsunehiro Endo ,  Yuji Mori

IPC分类号： H02M1/10

CPC分类号： H03K7/08 ,  G06F1/025 ,  H02P27/08

摘要： Provided is a control technique of a PWM conversion type power converter capable of compensating for a voltage error due to voltage drop mainly at a switching element and managing a switching time of a PWM signal at the same time, and capable of suppressing increase/decrease of software operation load and addition of a hardware circuit to the minimum. A semiconductor integrated circuit having a PWM signal generating unit which generates a PWM signal is provided with a PWM timer unit including a counter counting a pulse width of a pulse signal inputted from the outside with delay from a PWM signal, a register loading a counter value of the counter in synchronization with the PWM signal, and an A/D converting unit converting an analog signal serving as a source signal of the pulse signal inputted from the outside to a digital signal.

摘要翻译： 提供了一种PWM转换型电力转换器的控制技术，其能够主要在开关元件处补偿由于电压降引起的电压误差，并且同时管理PWM信号的开关时间，并且能够抑制 软件操作负载和硬件电路的添加至少。 具有产生PWM信号的PWM信号产生单元的半导体集成电路具有PWM定时器单元，该PWM定时器单元包括对来自PWM信号的延迟从外部输入的脉冲信号的脉冲宽度进行计数的计数器单元， 的计数器，以及将从外部输入的脉冲信号的源信号用作数字信号的模拟信号的A / D转换单元。

公开(公告)号：US20110182096A1

公开(公告)日：2011-07-28

申请号：US13080207

申请日：2011-04-05

申请人： Takahiro Suzuki ,  Yasuo Notohara ,  Tsunehiro Endo ,  Yuji Mori

发明人： Takahiro Suzuki ,  Yasuo Notohara ,  Tsunehiro Endo ,  Yuji Mori

IPC分类号： H02M7/537 ,  H03K7/08

CPC分类号： H03K7/08 ,  G06F1/025 ,  H02P27/08

摘要： Provided is a control technique of a PWM conversion type power converter capable of compensating for a voltage error due to voltage drop mainly at a switching element and managing a switching time of a PWM signal at the same time, and capable of suppressing increase/decrease of software operation load and addition of a hardware circuit to the minimum. A semiconductor integrated circuit having a PWM signal generating unit which generates a PWM signal is provided with a PWM timer unit including a counter counting a pulse width of a pulse signal inputted from the outside with delay from a PWM signal, a register loading a counter value of the counter in synchronization with the PWM signal, and an A/D converting unit converting an analog signal serving as a source signal of the pulse signal inputted from the outside to a digital signal.

摘要翻译： 提供了一种PWM转换型电力转换器的控制技术，其能够主要在开关元件处补偿由于电压降引起的电压误差，并且同时管理PWM信号的开关时间，并且能够抑制 软件操作负载和硬件电路的添加至少。 具有产生PWM信号的PWM信号产生单元的半导体集成电路具有PWM定时器单元，该PWM定时器单元包括对来自PWM信号的延迟从外部输入的脉冲信号的脉冲宽度进行计数的计数器单元， 的计数器，以及将从外部输入的脉冲信号的源信号用作数字信号的模拟信号的A / D转换单元。

公开(公告)号：US20090135630A1

公开(公告)日：2009-05-28

申请号：US12335867

申请日：2008-12-16

申请人： Takahiro Suzuki ,  Yoshitaka Iwaji ,  Tsunehiro Endo ,  Yasuo Notohara ,  Yoshiaki Kurita ,  Tatsuo Ando ,  Chikara Tanaka

发明人： Takahiro Suzuki ,  Yoshitaka Iwaji ,  Tsunehiro Endo ,  Yasuo Notohara ,  Yoshiaki Kurita ,  Tatsuo Ando ,  Chikara Tanaka

IPC分类号： H02M5/458

CPC分类号： H02M7/003 ,  H02M5/4585 ,  H02M2001/0012

摘要： A converter includes a converter circuit 1 having a plurality of bridge-connected semiconductor switching devices for converting AC power into DC power, a smoothing condenser connected in parallel to the DC side of the converter circuit and a current detector provided in a condenser circuit to control a condenser current flowing through the smoothing condenser to be a set value. The condenser current is controlled to be the set value (e.g. zero) to thereby reduce the capacity of the smoothing condenser and make the converter small.

摘要翻译： A转换器包括转换器电路1，其具有用于将AC电力转换为DC电力的多个桥接半导体开关器件，与转换器电路的DC侧并联连接的平滑电容器和设置在电容器电路中的电流检测器 流过平滑电容器的电容器电流为设定值。 冷凝器电流被控制为设定值（例如零），从而降低平滑电容器的容量并使转换器变小。

公开(公告)号：US07839663B2

公开(公告)日：2010-11-23

申请号：US12335867

申请日：2008-12-16

申请人： Takahiro Suzuki ,  Yoshitaka Iwaji ,  Tsunehiro Endo ,  Yasuo Notohara ,  Yoshiaki Kurita ,  Tatsuo Ando ,  Chikara Tanaka

发明人： Takahiro Suzuki ,  Yoshitaka Iwaji ,  Tsunehiro Endo ,  Yasuo Notohara ,  Yoshiaki Kurita ,  Tatsuo Ando ,  Chikara Tanaka

IPC分类号： H02M5/45 ,  H02M5/458

CPC分类号： H02M7/003 ,  H02M5/4585 ,  H02M2001/0012

摘要： A converter includes a converter circuit 1 having a plurality of bridge-connected semiconductor switching devices for converting AC power into DC power, a smoothing condenser connected in parallel to the DC side of the converter circuit and a current detector provided in a condenser circuit to control a condenser current flowing through the smoothing condenser to be a set value. The condenser current is controlled to be the set value (e.g. zero) to thereby reduce the capacity of the smoothing condenser and make the converter small.

摘要翻译： A转换器包括转换器电路1，其具有用于将AC电力转换为DC电力的多个桥接半导体开关器件，与转换器电路的DC侧并联连接的平滑电容器和设置在电容器电路中的电流检测器 流过平滑电容器的电容器电流为设定值。 冷凝器电流被控制为设定值（例如零），从而降低平滑电容器的容量并使转换器变小。

公开(公告)号：US07471525B2

公开(公告)日：2008-12-30

申请号：US11213728

申请日：2005-08-30

申请人： Takahiro Suzuki ,  Yoshitaka Iwaji ,  Tsunehiro Endo ,  Yasuo Notohara ,  Yoshiaki Kurita ,  Tatsuo Ando ,  Chikara Tanaka

发明人： Takahiro Suzuki ,  Yoshitaka Iwaji ,  Tsunehiro Endo ,  Yasuo Notohara ,  Yoshiaki Kurita ,  Tatsuo Ando ,  Chikara Tanaka

IPC分类号： H02M5/45 ,  H02M5/40 ,  H02M5/456

CPC分类号： H02M7/003 ,  H02M5/4585 ,  H02M2001/0012

摘要： A converter includes a converter circuit 1 having a plurality of bridge-connected semiconductor switching devices for converting AC power into DC power, a smoothing condenser connected in parallel to the DC side of the converter circuit and a current detector provided in a condenser circuit to control a condenser current flowing through the smoothing condenser to be a set value. The condenser current is controlled to be the set value (e.g. zero) to thereby reduce the capacity of the smoothing condenser and make the converter small.

摘要翻译： A转换器包括转换器电路1，其具有用于将AC电力转换为DC电力的多个桥接半导体开关器件，与转换器电路的DC侧并联连接的平滑电容器和设置在电容器电路中的电流检测器 流过平滑电容器的电容器电流为设定值。 冷凝器电流被控制为设定值（例如零），从而降低平滑电容器的容量并使转换器变小。

公开(公告)号：US20060044848A1

公开(公告)日：2006-03-02

申请号：US11213728

申请日：2005-08-30

申请人： Takahiro Suzuki ,  Yoshitaka Iwaji ,  Tsunehiro Endo ,  Yasuo Notohara ,  Yoshiaki Kurita ,  Tatsuo Ando ,  Chikara Tanaka

发明人： Takahiro Suzuki ,  Yoshitaka Iwaji ,  Tsunehiro Endo ,  Yasuo Notohara ,  Yoshiaki Kurita ,  Tatsuo Ando ,  Chikara Tanaka

IPC分类号： H02M5/45

CPC分类号： H02M7/003 ,  H02M5/4585 ,  H02M2001/0012

摘要： A converter includes a converter circuit 1 having a plurality of bridge-connected semiconductor switching devices for converting AC power into DC power, a smoothing condenser connected in parallel to the DC side of the converter circuit and a current detector provided in a condenser circuit to control a condenser current flowing through the smoothing condenser to be a set value. The condenser current is controlled to be the set value (e.g. zero) to thereby reduce the capacity of the smoothing condenser and make the converter small.

摘要翻译： A转换器包括转换器电路1，其具有用于将AC电力转换为DC电力的多个桥接半导体开关器件，与转换器电路的DC侧并联连接的平滑电容器和设置在电容器电路中的电流检测器 流过平滑电容器的电容器电流为设定值。 冷凝器电流被控制为设定值（例如零），从而降低平滑电容器的容量并使转换器变小。

公开(公告)号：US20090323232A1

公开(公告)日：2009-12-31

申请号：US12388762

申请日：2009-02-19

申请人： Takahiro Suzuki ,  Yasuo Notohara ,  Kiyoshi Sakamoto

发明人： Takahiro Suzuki ,  Yasuo Notohara ,  Kiyoshi Sakamoto

IPC分类号： H02H3/00 ,  H02M7/537

CPC分类号： H02M7/53873 ,  H02M1/32 ,  H02M7/5395 ,  H02M2001/0009

摘要： The device is provided with an electric power conversion circuit including switching elements for converting a DC electric power to an AC electric power, a load connected to an output side of the electric power conversion circuit, means for detecting a current flowing through a DC side in the electric power conversion circuit, a voltage command value preparing means for controlling the operation of the switching elements in the electric power conversion circuit and a wire breaking detecting means. The wire breaking detection means judges a wire breaking in the load or an abnormality of any of the switching elements in the electric power conversion circuit by making use of a DC current detection value in a period when a current of maximum voltage phase or of voltage minimum phase of the electric power conversion circuit is flowing in a DC current.

摘要翻译： 该装置设置有电力转换电路，该电力转换电路包括用于将DC电力转换为AC电力的开关元件，连接到电力转换电路的输出侧的负载，用于检测流过DC侧的电流的装置 电力转换电路，用于控制电力转换电路中的开关元件的动作的电压指令值准备单元以及断线检测单元。 断线检测装置通过在最大电压相位或电压最小值的电流的周期内利用直流电流检测值来判断负载中的断线或电力转换电路中的任何开关元件的异常 电力转换电路的相位在直流电流中流动。

公开(公告)号：US08305020B2

公开(公告)日：2012-11-06

申请号：US12388762

申请日：2009-02-19

申请人： Takahiro Suzuki ,  Yasuo Notohara ,  Kiyoshi Sakamoto

发明人： Takahiro Suzuki ,  Yasuo Notohara ,  Kiyoshi Sakamoto

IPC分类号： H02H7/08

CPC分类号： H02M7/53873 ,  H02M1/32 ,  H02M7/5395 ,  H02M2001/0009

摘要： The device is provided with an electric power conversion circuit including switching elements for converting a DC electric power to an AC electric power, a load connected to an output side of the electric power conversion circuit, means for detecting a current flowing through a DC side in the electric power conversion circuit, a voltage command value preparing means for controlling the operation of the switching elements in the electric power conversion circuit and a wire breaking detecting means. The wire breaking detection means judges a wire breaking in the load or an abnormality of any of the switching elements in the electric power conversion circuit by making use of a DC current detection value in a period when a current of maximum voltage phase or of voltage minimum phase of the electric power conversion circuit is flowing in a DC current.

摘要翻译： 该装置设置有电力转换电路，该电力转换电路包括用于将DC电力转换为AC电力的开关元件，连接到电力转换电路的输出侧的负载，用于检测流过DC侧的电流的装置 电力转换电路，用于控制电力转换电路中的开关元件的动作的电压指令值准备单元以及断线检测单元。 断线检测装置通过在最大电压相位或电压最小值的电流的周期内利用直流电流检测值来判断负载中的断线或电力转换电路中的任何开关元件的异常 电力转换电路的相位在直流电流中流动。

公开(公告)号：US07602138B2

公开(公告)日：2009-10-13

申请号：US11527475

申请日：2006-09-27

申请人： Daigo Kaneko ,  Takahiro Suzuki ,  Tsunehiro Endo ,  Kazuaki Tobari ,  Hajime Uematsu

发明人： Daigo Kaneko ,  Takahiro Suzuki ,  Tsunehiro Endo ,  Kazuaki Tobari ,  Hajime Uematsu

IPC分类号： H02P21/00

CPC分类号： H02P21/22

摘要： An apparatus for controlling the drive of an electric motor, having a current detector for detecting the current through an externally connected electric motor; a controller for generating a control signal to control the electric motor on the basis of the current detected by the current detector and the speed command for specifying the rotational speed of the electric motor; wherein the apparatus includes a load estimator for estimating the mechanical load condition associated with the electric motor on the basis of the current detected by the current detector and the speed command, and the controller controls the electric motor current on the basis of the detected current, the speed command and the estimated load condition.

摘要翻译： 一种用于控制电动机的驱动的装置，具有用于检测通过外部连接的电动机的电流的电流检测器; 控制器，用于基于由电流检测器检测的电流和用于指定电动机的转速的速度指令来产生控制电动机的控制信号; 其特征在于，所述装置包括基于由所述电流检测器检测出的电流和所述速度指令来估计与所述电动机相关联的机械负载状况的负载估计器，并且所述控制器基于检测到的电流来控制所述电动机电流， 速度命令和估计的负载条件。

公开(公告)号：US20050204760A1

公开(公告)日：2005-09-22

申请号：US11001036

申请日：2004-12-02

申请人： Yoshiaki Kurita ,  Tatsuo Ando ,  Noriaki Yamada ,  Takashi Ooishi ,  Tsunehiro Endo ,  Takahiro Suzuki

发明人： Yoshiaki Kurita ,  Tatsuo Ando ,  Noriaki Yamada ,  Takashi Ooishi ,  Tsunehiro Endo ,  Takahiro Suzuki

IPC分类号： F25B1/00 ,  F25B49/00 ,  F25B49/02 ,  G05B15/02 ,  H02M3/155 ,  H02M7/48

CPC分类号： F25B49/025 ,  F25B2600/021 ,  H02M5/451 ,  H02P27/08 ,  Y02B30/741

摘要： A refrigerating apparatus having a refrigerating cycle that comprises a compressor, an electric motor that drives the compressor, and an inverter device that variably controls the operating frequency of the electric motor. The inverter device includes a converter circuit that converts an A.C. voltage from an A.C. power supply into a D.C. current, an inverter circuit comprising a D.C./A.C converter, and a shunt resistance that detects a D.C. current flowing through a switching element of the inverter circuit. The shunt resistance detects a D.C. current, and the detected D.C. current value is calculated as a sine wave A.C. current for the electric motor in relation to action of the switching element.

摘要翻译： 具有包括压缩机，驱动压缩机的电动机和可变地控制电动机的工作频率的逆变器装置的制冷循环的制冷装置。 逆变器装置包括：转换电路，其将来自交流电源的交流电压转换为直流电;逆变器电路，包括直流/交流转换器;以及分流电阻，其检测流过逆变器电路的开关元件的直流电流 。 分流电阻检测直流电流，并且检测到的直流电流值被计算为电动机相对于开关元件的作用的正弦波A.C.电流。