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1. 发明申请

US20100052598A1 POWER REGENERATIVE CONVERTER 有权
标题翻译：功率再生转换器
公开(公告)号：US20100052598A1
公开(公告)日：2010-03-04
申请号：US12524316
申请日：2007-04-10
申请人： Yoshitomo Hayashi , Akihiko Iwata
发明人： Yoshitomo Hayashi , Akihiko Iwata
IPC分类号： H02P3/18
CPC分类号： H02P27/06 , H02M7/797 , H02P9/006 , H02P29/0241
摘要： There are provided a smoothing capacitor (71) for storing an induced electromotive force generated by a three-phase induction motor (5), a regenerative transistor (81 to 86) for switching a terminal voltage of the smoothing capacitor to carry out a power regenerating operation over a three-phase AC power supply (3), a line voltage detecting portion (6) for detecting a line voltage of the three-phase AC power supply, a fundamental waveform generating portion (10) for generating, from a signal output from the line voltage detecting portion, a fundamental waveform defined to be a line voltage waveform of the three-phase AC power supply in which a source voltage distortion component is not mixed, a base driving signal creating portion (7) for creating a base driving signal to be used for an ON/OFF control of the regenerative transistor based on a signal output from the fundamental waveform generating portion, and a base driving signal output portion (9) for outputting the base driving signal.
摘要翻译：提供一种用于存储由三相感应电动机（5）产生的感应电动势的平滑电容器（71），用于切换平滑电容器的端电压的再生晶体管（81至86），以执行电力再生通过三相交流电源（3），用于检测三相交流电源线路电压的线路电压检测部分（6），从信号输出端产生的基波形成部分（10）来自线电压检测部分的基本波形被定义为不混合源电压失真分量的三相AC电源的线电压波形，用于产生基极驱动的基极驱动信号产生部分（7）信号用于根据从基波形成部分输出的信号进行再生晶体管的ON / OFF控制;以及基本驱动信号输出部（9），用于输出基本驱动符号 al。

2. 发明授权

US08188701B2 Power regenerative converter 有权
标题翻译：电力再生转换器
公开(公告)号：US08188701B2
公开(公告)日：2012-05-29
申请号：US12524316
申请日：2007-04-10
申请人： Yoshitomo Hayashi , Akihiko Iwata
发明人： Yoshitomo Hayashi , Akihiko Iwata
IPC分类号： H02P27/06 , H02P3/14 , H02P3/18
CPC分类号： H02P27/06 , H02M7/797 , H02P9/006 , H02P29/0241
摘要： There are provided a smoothing capacitor (71) for storing an induced electromotive force generated by a three-phase induction motor (5), a regenerative transistor (81 to 86) for switching a terminal voltage of the smoothing capacitor to carry out a power regenerating operation over a three-phase AC power supply (3), a line voltage detecting portion (6) for detecting a line voltage of the three-phase AC power supply, a fundamental waveform generating portion (10) for generating, from a signal output from the line voltage detecting portion, a fundamental waveform defined to be a line voltage waveform of the three-phase AC power supply in which a source voltage distortion component is not mixed, a base driving signal creating portion (7) for creating a base driving signal to be used for an ON/OFF control of the regenerative transistor based on a signal output from the fundamental waveform generating portion, and a base driving signal output portion (9) for outputting the base driving signal.
摘要翻译：提供一种用于存储由三相感应电动机（5）产生的感应电动势的平滑电容器（71），用于切换平滑电容器的端电压的再生晶体管（81至86），以执行电力再生通过三相交流电源（3），用于检测三相交流电源线路电压的线路电压检测部分（6），从信号输出端产生的基波形成部分（10）来自线电压检测部分的基本波形被定义为不混合源电压失真分量的三相AC电源的线电压波形，用于产生基极驱动的基极驱动信号产生部分（7）信号用于根据从基波形成部分输出的信号进行再生晶体管的ON / OFF控制;以及基本驱动信号输出部（9），用于输出基本驱动符号 al。

3. 发明授权

US08659924B2 Power conversion apparatus 有权
标题翻译：电力转换装置
公开(公告)号：US08659924B2
公开(公告)日：2014-02-25
申请号：US13128584
申请日：2009-04-08
申请人： Masaki Yamada , Akihiko Iwata
发明人： Masaki Yamada , Akihiko Iwata
IPC分类号： H02M1/42 , H02M7/217
CPC分类号： H02M1/4225 , H02M1/12 , H02M7/217 , Y02B70/126 , Y10T307/675
摘要： In a power conversion apparatus that converts AC power to DC power, an inverter circuit including one or more single-phase inverters connected in series with each other is connected in series at the subsequent stage of a rectification of an AC input. At the subsequent stage of the inverter circuit, a smoothing capacitor connected via a rectification diode, and a short-circuiting switch for bypassing the smoothing capacitor are provided. The short-circuiting switch is subjected to ON/OFF control by PWM control such that a voltage of the DC voltage supply of the inverter circuit follows a target voltage. The inverter circuit is subjected to output control such that a DC voltage of the smoothing capacitor follows a target voltage and an input power factor is improved.
摘要翻译：在将AC电力转换为DC电力的电力转换装置中，在AC输入的整流的后续阶段，串联连接包括串联连接的一个以上的单相逆变器的逆变电路。在逆变器电路的后续阶段，提供通过整流二极管连接的平滑电容器和用于旁路平滑电容器的短路开关。短路开关通过PWM控制进行ON / OFF控制，使得逆变器电路的直流电压源的电压跟随目标电压。对逆变器电路进行输出控制，使得平滑电容器的直流电压跟随目标电压，并且提高输入功率因数。

4. 发明授权

US08649196B2 Power converting apparatus with an output voltage that is the sum of voltages generated by individual inverters 失效
标题翻译：电力转换装置，其输出电压是由各个逆变器产生的电压之和
公开(公告)号：US08649196B2
公开(公告)日：2014-02-11
申请号：US13145573
申请日：2009-11-10
申请人： Kenji Fujiwara , Akihiko Iwata
发明人： Kenji Fujiwara , Akihiko Iwata
IPC分类号： H02M7/48
CPC分类号： H02M7/49 , H02M7/487 , H02M7/797 , H02M2007/4835
摘要： A power converting apparatus includes a first inverter (3) connected to a first DC power supply (1) and a plurality of second inverters (4A, 4B) connected in series to the first DC power supply (1). The plurality of second inverters (4A, 4B) provide compensation to an output voltage of the first inverter (3) by the sum of outputs at which a power balance becomes approximately zero. The power converting apparatus generates output voltage commands (VrefA, VrefB) for the respective second inverters (4A, 4B) upon individually making an adjustment so that DC bus voltages of the second inverters (4A, 4B) become equal to each other depending on whether charging or discharging mode is selected while keeping the sum of the individual output voltage commands (VrefA, VrefB) at a target sum voltage (Vref2).
摘要翻译：电力转换装置包括连接到第一直流电源（1）的第一反相器（3）和与第一直流电源（1）串联连接的多个第二反相器（4A，4B）。多个第二反相器（4A，4B）通过功率平衡变为近似为零的输出的和来向第一反相器（3）的输出电压提供补偿。电力转换装置在单独进行调整时，对各个第二逆变器（4A，4B）产生输出电压指令（VrefA，VrefB），使得第二反相器（4A，4B）的直流母线电压根据是否变得相等选择充电或放电模式，同时将各个输出电压指令（VrefA，VrefB）的和保持在目标和电压（Vref2）。

5. 发明申请

US20120099353A1 POWER CONVERTING APPARATUS 有权
标题翻译：电源转换装置
公开(公告)号：US20120099353A1
公开(公告)日：2012-04-26
申请号：US13382707
申请日：2010-05-07
申请人： Satoshi Azuma , Takeshi Oi , Akihiko Iwata
发明人： Satoshi Azuma , Takeshi Oi , Akihiko Iwata
IPC分类号： H02M7/48
CPC分类号： H02M7/49 , Y02B70/1483
摘要： A power converting apparatus includes a main inverter having a high-voltage DC power supply that operates at a low frequency employing SiC MOSFETs having a high withstand voltage exceeding 600 V and a sub-inverter having a low-voltage capacitor that operates through high-frequency PWM employing Si MOSFETs having a low withstand voltage. With AC sides of the main inverter and the sub-inverter connected in series, the power converting apparatus outputs AC power having a prescribed voltage waveform by adding voltages individually generated by the main inverter and the sub-inverter. Specifically, the SiC MOSFETs are used only in the main inverter of which devices are required to have a high withstand voltage and the Si MOSFETs are used in the sub-inverter of which devices may have a relatively low withstand voltage, whereby conduction loss is reduced with an inexpensive circuit configuration.
摘要翻译：电力转换装置包括：主逆变器，其具有使用高耐受电压超过600V的SiC MOSFET的低频工作的高压直流电源以及具有通过高频工作的低压电容器的副逆变器 PWM采用具有低耐受电压的Si MOSFET。主逆变器和副逆变器的AC侧串联连接，电力转换装置通过加上由主逆变器和副逆变器分别产生的电压，输出具有规定电压波形的交流电力。具体来说，SiC MOSFET仅用于需要具有高耐压的器件的主逆变器中，并且在其逆变器中使用Si MOSFET，其中器件可能具有相对低的耐受电压，从而降低了传导损耗具有廉价的电路配置。

6. 发明授权

US08036008B2 DC/DC power converting apparatus 有权
标题翻译： DC / DC电力转换装置
公开(公告)号：US08036008B2
公开(公告)日：2011-10-11
申请号：US12441025
申请日：2007-05-17
申请人： Matahiko Ikeda , Takahiro Urakabe , Kiyoharu Anzai , Akihiko Iwata , Hirotoshi Maekawa , Toshiyuki Kikunaga , Masaru Kobayashi , Tatsuya Okuda
发明人： Matahiko Ikeda , Takahiro Urakabe , Kiyoharu Anzai , Akihiko Iwata , Hirotoshi Maekawa , Toshiyuki Kikunaga , Masaru Kobayashi , Tatsuya Okuda
IPC分类号： H02M7/10
CPC分类号： H02M3/158 , H02M2001/0077
摘要： Three or more circuits including a driving inverter circuit and rectifier circuits are connected in series, each of the circuits including a high-voltage side MOSFET and a low-voltage side MOSFET connected in series as well as a smoothing capacitor having positive and negative terminals between which the MOSFETs are connected. LC series circuits, each including a capacitor and an inductor, are disposed individually between one specific circuit and the other circuits with periods of resonance of the LC series circuits made equal to one another. In performing DC/DC power conversion through charging and discharging operation of the capacitors, a resonance phenomenon of the LC series circuits is used to improve conversion efficiency and achieve a reduction in size of the apparatus structure.
摘要翻译：包括驱动逆变器电路和整流电路的三个或更多个电路串联连接，每个电路包括串联连接的高压侧MOSFET和低压侧MOSFET，以及平滑电容器，其间具有正极和负极端子 MOSFET连接。 LC串联电路各自包括电容器和电感器，分别设置在一个特定电路和其它电路之间，其中LC串联电路的谐振周期彼此相等。在通过电容器的充放电操作进行DC / DC电力转换时，使用LC串联电路的谐振现象来提高转换效率并实现装置结构的尺寸减小。

7. 发明申请

US20110215651A1 POWER CONVERSION APPARATUS 有权
标题翻译：功率转换装置
公开(公告)号：US20110215651A1
公开(公告)日：2011-09-08
申请号：US13128584
申请日：2009-04-08
申请人： Masaki Yamada , Akihiko Iwata
发明人： Masaki Yamada , Akihiko Iwata
IPC分类号： H02J4/00
CPC分类号： H02M1/4225 , H02M1/12 , H02M7/217 , Y02B70/126 , Y10T307/675
摘要： In a power conversion apparatus that converts AC power to DC power, an inverter circuit including one or more single-phase inverters connected in series with each other is connected in series at the subsequent stage of a rectification of an AC input. At the subsequent stage of the inverter circuit, a smoothing capacitor connected via a rectification diode, and a short-circuiting switch for bypassing the smoothing capacitor are provided. The short-circuiting switch is subjected to ON/OFF control by PWM control such that a voltage of the DC voltage supply of the inverter circuit follows a target voltage. The inverter circuit is subjected to output control such that a DC voltage of the smoothing capacitor follows a target voltage and an input power factor is improved.
摘要翻译：在将AC电力转换为DC电力的电力转换装置中，在AC输入的整流的后续阶段，串联连接包括串联连接的一个以上的单相逆变器的逆变电路。在逆变器电路的后续阶段，提供通过整流二极管连接的平滑电容器和用于旁路平滑电容器的短路开关。短路开关通过PWM控制进行ON / OFF控制，使得逆变器电路的直流电压源的电压跟随目标电压。对逆变器电路进行输出控制，使得平滑电容器的直流电压跟随目标电压，并且提高输入功率因数。

8. 发明申请

US20110211381A1 POWER CONVERTING APPARATUS 有权
标题翻译：电源转换装置
公开(公告)号：US20110211381A1
公开(公告)日：2011-09-01
申请号：US13127132
申请日：2009-11-11
申请人： Akihiko Iwata , Hiroshi Ito
发明人： Akihiko Iwata , Hiroshi Ito
IPC分类号： H02M7/5387
CPC分类号： H02M7/49 , H02M7/487 , H02M7/501 , H02M2007/4835
摘要： A neutral point clamped three-phase three-level inverter is connected to a first DC power supply and single-phase inverters are connected in series with AC output lines of individual phases of the three-phase three-level inverter such that sums of output voltages of the three-phase three-level inverter and output voltages of the respective single-phase inverters are output to a load through a smoothing filter. An output control unit controls the three-phase three-level inverter so that the individual phases of the three-phase three-level inverter output primary voltage pulses at a rate of one pulse per half cycle and controls the individual single-phase inverters by PWM, so that output voltages to the individual phases of the load form sine waves of which phases are offset by 2π/3 from one phase to another, the sine waves having the same peak value.
摘要翻译：中性点钳位三相三电平逆变器连接到第一直流电源，单相逆变器与三相三电平逆变器的各相交流输出线串联连接，使得输出电压之和三相三相逆变器的输出电压通过平滑滤波器输出到负载。输出控制单元控制三相三电平逆变器，使得三相三电平逆变器的各相以每半个周期的一个脉冲的速率输出一次电压脉冲，并通过PWM来控制各个单相逆变器，使得负载的各个相的输出电压形成正相波，其相位从一个相位向另一个相位偏移2＆pgr / 3，正弦波具有相同的峰值。

9. 发明申请

US20090116268A1 POWER CONVERTING APPARATUS 失效
标题翻译：电源转换装置
公开(公告)号：US20090116268A1
公开(公告)日：2009-05-07
申请号：US12296286
申请日：2007-04-23
申请人： Yukimori Kishida , Akihiko Iwata , Shinichi Ogusa , Akira Imanaka , Tetsuaki Nagano
发明人： Yukimori Kishida , Akihiko Iwata , Shinichi Ogusa , Akira Imanaka , Tetsuaki Nagano
IPC分类号： H02M7/19
CPC分类号： H02M1/12 , H02M7/797 , H02M2001/007
摘要： A converter controllable in regenerative running mode, which is a power converting apparatus capable of suppressing harmonics without increasing the size of a reactor, and reducing power loss and electromagnetic noise. A power converter is configured by directly connecting AC sides of single-phase sub-converters having a DC voltage lower than a DC voltage of a 3-phase main converter to AC input lines of individual phases thereof in series. The main converter is driven by one gate pulse per half recurring cycle and a voltage produced by each sub-converter at AC terminals thereof is controlled to match a difference between an AC power supply voltage and a voltage produced by the main converter at AC terminals thereof, whereby phase voltages of the power converter are generated as the sums of phase voltages of the individual converters.
摘要翻译：可再生运行模式的A转换器，其是能够在不增加电抗器的尺寸的情况下抑制谐波的电力转换装置，并且减少功率损耗和电磁噪声。电力转换器通过将具有低于三相主转换器的直流电压的直流电压的交流侧直接连接到其各相的交流输入线而构成。主转换器每半周期循环由一个门脉冲驱动，并且控制由其AC端子处的每个子转换器产生的电压，以匹配交流电源电压与由主转换器在其交流端子处产生的电压之间的差从而产生功率转换器的相电压作为各个转换器的相电压之和。

10. 发明授权

US07438420B2 Display apparatus 失效
标题翻译：显示装置
公开(公告)号：US07438420B2
公开(公告)日：2008-10-21
申请号：US11669471
申请日：2007-01-31
申请人： Shigeki Harada , Taichiro Tamida , Akihiko Iwata
发明人： Shigeki Harada , Taichiro Tamida , Akihiko Iwata
IPC分类号： G03B21/26 , G03B21/20 , G03B21/18 , G03B21/16 , G02F1/133
CPC分类号： H04N9/3155 , H04N9/3114
摘要： A display apparatus having a control unit which controls the light source temperature so that the temperature remains within a predetermined temperature range, a light modulation device for displaying images by receiving light emitted from the light source, and modulating the light according to the image data, and a light source controlling unit which adjusts the amount of light that enters the light modulation device, by controlling electrical power fed to the light source, according to the brightness data. Even if a contrast ratio is improved by changing the amount of light of an HID lamp, a passive optical modulation type display apparatus can be provided without reducing the lifetime of the light source lamp.
摘要翻译：一种显示装置，具有控制单元，其控制光源温度使得温度保持在预定温度范围内;光调制装置，用于通过接收从光源发射的光来显示图像，并根据图像数据调制光，以及光源控制单元，其通过根据亮度数据控制馈送到光源的电力来调节进入光调制装置的光量。即使通过改变HID灯的光量来提高对比度，也可以提供无源光调制型显示装置，而不会降低光源灯的寿命。

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