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公开(公告)号：US20050151503A1
公开(公告)日：2005-07-14
申请号：US11034719
申请日：2005-01-14
申请人： Mamoru Yaeshima , Shigeki Hanyu , Hideki Kagami , Yuuichi Yamada
发明人： Mamoru Yaeshima , Shigeki Hanyu , Hideki Kagami , Yuuichi Yamada
CPC分类号： H02M5/4585
摘要： In an inverter comprising a converter circuit that converts an alternating current into a direct current and an inverter circuit that inverts the direct current into the alternating current, supply of energy from a voltage smoothing capacitor to a load or recovery of energy from the load is facilitated without the necessity of increasing the capacitance of the voltage smoothing capacitor interposed between the converter circuit and inverter circuit. In the converter circuit, before the supply of energy to the load is started, the voltage on a dc link is raised. Before collection of energy from the load is started, the voltage on the dc link is lowered.
摘要翻译： 在包括将交流电转换成直流电的转换器电路的逆变器和将直流转换为交流电的逆变器电路中，有助于从电压平滑电容器到负载的能量供给或从负载恢复能量 而不需要增加介于转换器电路和逆变器电路之间的电压平滑电容器的电容。 在转换器电路中，在开始向负载供电之前，直流链路上的电压升高。 在从负载收集能量开始之前，直流链路上的电压降低。
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公开(公告)号：US20050068000A1
公开(公告)日：2005-03-31
申请号：US10952795
申请日：2004-09-30
申请人： Yuuichi Yamada , Naoto Ota , Takashi Harada , Mamoru Yaeshima
发明人： Yuuichi Yamada , Naoto Ota , Takashi Harada , Mamoru Yaeshima
CPC分类号： G01R31/343 , H02P27/08
摘要： While the motor drive amplifier is not operating, electromagnetic switch contacts are held closed for a predetermined period of time, three-phase power is rectified by a rectifier circuit and a smoothing capacitor is charged. Then, the smoothing capacitor is discharged through a discharging resistor and, when a predetermined voltage is reached, a contact is closed, with the result that a closed circuit is formed by the smoothing capacitor, a detection resistor, a motor coil, motor insulation resistance, and ground. A voltage generating across the detection resistor due to leakage current is detected and compared with a reference value. If the detected voltage exceeds the reference value, an insulation degradation signal is delivered.
摘要翻译： 当电机驱动放大器不工作时，电磁开关触点保持关闭一段预定的时间，三相电源由整流电路整流，平滑电容器被充电。 然后，平滑电容器通过放电电阻器放电，并且当达到预定电压时，触点闭合，结果是由平滑电容器，检测电阻器，电动机线圈，电动机绝缘电阻形成闭合电路 ，和地面。 检测由漏电流产生的检测电阻两端的电压，并将其与参考值进行比较。 如果检测到的电压超过参考值，则传递绝缘劣化信号。
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公开(公告)号：US06891737B1
公开(公告)日：2005-05-10
申请号：US10340678
申请日：2003-01-13
CPC分类号： H02M7/53875 , G01R19/2513 , H02P21/0025 , H02P23/14 , H02P2205/01
摘要： An inverter apparatus is provided with first and second current detectors for detecting the current of two arbitrary phases and further with first and second A/D converters, and they are integrated into one unit. It furthermore stores, in a storage device, a compensation value for compensating for an unbalance between gains of the first current detector and the first A/D converter, and gains of the second current detector and the second A/D converter. By multiplying the detected current value of either one of the detected phases by this compensation value, it equalizes the current feedback gains for both phases.
摘要翻译： 逆变器装置设置有用于检测两个任意相位的电流的第一和第二电流检测器，并且还具有第一和第二A / D转换器，并且它们被集成到一个单元中。 此外，还在存储装置中存储用于补偿第一电流检测器和第一A / D转换器的增益之间的不平衡的补偿值，以及第二电流检测器和第二A / D转换器的增益。 通过将检测到的相位中的任何一个的检测的电流值乘以该补偿值，则它使两相的电流反馈增益相等。
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公开(公告)号：US20060038524A1
公开(公告)日：2006-02-23
申请号：US11204095
申请日：2005-08-16
IPC分类号： H02P7/06
CPC分类号： H02P5/74
摘要： An object of the present invention is to provide a servo motor driving apparatus and a servo motor driving method for driving a plurality of servo motors, wherein provisions are made to improve the reuse efficiency of servo motor regenerative energy. The servo motor driving apparatus (2) comprises: a plurality of inverter circuits (4, 4″, 4″) which supply AC power to the plurality of servo motors (5, 5′, 5″), respectively; a converter circuit (3) which supplies electric power in common to the inverter circuits (4, 4′, 4″); and an inverter control unit (6) which, when giving an acceleration command to any one of the servo motors, gives a deceleration command to another one of the servo motors at the same time.
摘要翻译： 本发明的目的是提供一种用于驱动多个伺服电动机的伺服电动机驱动装置和伺服电动机驱动方法，其中提供了提高伺服电动机再生能量的再利用效率。 伺服电动机驱动装置（2）包括：分别向多个伺服电动机（5,5'，5“）供给交流电的多个逆变器电路（4,4”，4“）， 向所述逆变器电路（4,4'，4“）共同地供给电力的转换器电路（3）。 以及逆变器控制单元（6），当对所述伺服电动机中的任何一个给予加速指令时，同时向所述伺服电动机的另一个给出减速命令。
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公开(公告)号：US20050047050A1
公开(公告)日：2005-03-03
申请号：US10916487
申请日：2004-08-12
CPC分类号： H02H7/0838 , H02H9/042
摘要： Semiconductor surge absorbing devices are connected individually between power lines for the U, V and W phases, which connect an inverter and a motor, and between the ground and the power lines. The absorbing devices are adapted to be energized to clamp voltages between opposite terminals thereof when the voltages are higher than a given value.
摘要翻译： 半导体浪涌吸收装置分别连接在用于连接逆变器和电动机以及接地和电力线之间的U，V和W相的电力线之间。 当电压高于给定值时，吸收装置适于通电以在其相对端之间钳位电压。
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公开(公告)号：US09562277B2
公开(公告)日：2017-02-07
申请号：US11943207
申请日：2007-11-20
申请人： Mamoru Nakata , Yuuichi Yamada , Koji Itakura , Yoshio Okada , Yoshihito Kawamura , Michiaki Yamasaki
发明人： Mamoru Nakata , Yuuichi Yamada , Koji Itakura , Yoshio Okada , Yoshihito Kawamura , Michiaki Yamasaki
摘要： The present invention provides a magnesium alloy material, having superior mechanical properties without using special production equipment or processes, and a production process thereof. The magnesium alloy material of the present invention composed of an Mg—Zn—RE alloy comprises essential components in the form of 0.5 to 3 atomic percent of Zn and 1 to 5 atomic percent of RE, with the remainder comprising Mg and unavoidable impurities. The Mg—Zn—RE alloy has a lamellar phase formed from a long period stacking ordered structure and α-Mg in the alloy structure thereof. The long period stacking ordered structure has at least one of a curved portion and a bent portion and has a divided portion in at least a portion thereof. Finely granulated α-Mg having a mean particle diameter of 2 μm or less is formed in the divided portion.
摘要翻译： 本发明提供一种在不使用特殊的生产设备或方法的情况下具有优异的机械性能的镁合金材料及其制造方法。 由Mg-Zn-RE合金构成的本发明的镁合金材料包含0.5〜3原子％的Zn和1〜5原子％的RE的必需成分，其余为Mg和不可避免的杂质。 Mg-Zn-RE合金在其合金结构中具有由长周期堆积有序结构形成的层状相和α-Mg。 长周期层叠结构具有弯曲部分和弯曲部分中的至少一个，并且在其至少一部分中具有分割部分。 在分割部分中形成平均粒径为2μm以下的细粒状的α-Mg。
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17.发明授权公开(公告)号：US08588037B2
公开(公告)日：2013-11-19
申请号：US13419394
申请日：2012-03-13
IPC分类号： G11B11/00
CPC分类号： G11B20/10009 , G11B5/3133 , G11B5/6088 , G11B20/10305 , G11B20/10509 , G11B27/36 , G11B2005/0021 , G11B2220/2508
摘要： A magnetic disk device of an embodiment includes a magnetic disk, a magnetic head, a laser-beam-intensity control unit, a reproduced-signal detecting unit, and a magnetic-disk evaluating unit. The magnetic head reads a signal recorded in the magnetic disk, or performs magnetic recording while irradiating a laser beam onto the magnetic disk. The laser-beam-intensity control unit controls the intensity of the laser beam. The reproduced-signal detecting unit detects the signal read by the magnetic head. The magnetic-disk evaluating unit evaluates the signal read from the magnetic head, on the basis of a relation between a noise level detected from the signal read by the magnetic head, and the intensity of the laser beam.
摘要翻译： 一个实施例的磁盘装置包括磁盘，磁头，激光束强度控制单元，再现信号检测单元和磁盘评估单元。 磁头读取记录在磁盘中的信号，或者在将激光束照射到磁盘上时进行磁记录。 激光束强度控制单元控制激光束的强度。 再现信号检测单元检测由磁头读取的信号。 磁盘评估单元基于从由磁头读取的信号检测到的噪声电平与激光束的强度之间的关系来评估从磁头读取的信号。
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18.发明申请公开(公告)号：US20130176835A1
公开(公告)日：2013-07-11
申请号：US13419394
申请日：2012-03-13
CPC分类号： G11B20/10009 , G11B5/3133 , G11B5/6088 , G11B20/10305 , G11B20/10509 , G11B27/36 , G11B2005/0021 , G11B2220/2508
摘要： A magnetic disk device of an embodiment includes a magnetic disk, a magnetic head, a laser-beam-intensity control unit, a reproduced-signal detecting unit, and a magnetic-disk evaluating unit. The magnetic head reads a signal recorded in the magnetic disk, or performs magnetic recording while irradiating a laser beam onto the magnetic disk. The laser-beam-intensity control unit controls the intensity of the laser beam. The reproduced-signal detecting unit detects the signal read by the magnetic head. The magnetic-disk evaluating unit evaluates the signal read from the magnetic head, on the basis of a relation between a noise level detected from the signal read by the magnetic head, and the intensity of the laser beam.
摘要翻译： 一个实施例的磁盘装置包括磁盘，磁头，激光束强度控制单元，再现信号检测单元和磁盘评估单元。 磁头读取记录在磁盘中的信号，或者在将激光束照射到磁盘上时进行磁记录。 激光束强度控制单元控制激光束的强度。 再现信号检测单元检测由磁头读取的信号。 磁盘评估单元基于从由磁头读取的信号检测到的噪声电平与激光束的强度之间的关系来评估从磁头读取的信号。
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19.发明授权公开(公告)号：US07135835B2
公开(公告)日：2006-11-14
申请号：US11200201
申请日：2005-08-10
申请人： Yuuichi Yamada , Shigeki Hanyu , Tomokazu Yoshida
发明人： Yuuichi Yamada , Shigeki Hanyu , Tomokazu Yoshida
IPC分类号： H02P27/04
CPC分类号： H02P23/06 , H02M5/4585
摘要： The invention is directed to the provision of a converter apparatus, an inverter apparatus, and a DC link voltage control method, wherein the upper limit value of the DC link voltage that rises due to regenerative energy occurring from a motor is set high, thereby increasing the regenerative energy to be stored in a DC link. The converter apparatus (10) comprises: a voltage detection part (11) for monitoring the DC link voltage occurring across the DC link (30); and a charge stopping part (12) for stopping charging a power storage part (C) when the detected value of the DC link voltage exceeds a predetermined upper limit voltage as the motor (3) is decelerated.
摘要翻译： 本发明旨在提供一种转换器装置，逆变器装置和直流链路电压控制方法，其中由于由电动机产生的再生能量而升高的直流母线电压的上限值被设定为高，从而增加 要存储在直流链路中的再生能量。 转换器装置（10）包括：电压检测部分（11），用于监测跨过直流链路（30）发生的直流链路电压; 以及当所述电动机（3）减速时，当所述直流母线电压的检测值超过规定的上限电压时，停止对蓄电部（C）充电的充电停止部（12）。
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公开(公告)号：US06147469A
公开(公告)日：2000-11-14
申请号：US180569
申请日：1998-11-10
IPC分类号： G05B19/18 , G05B19/414 , H04B10/24
CPC分类号： G05B19/4142 , G05B19/414 , B29C2945/76953 , B29C45/76 , G05B2219/33155 , G05B2219/33177 , G05B2219/33198 , G05B2219/33207 , Y02P90/265
摘要： A communication apparatus and method provides communication in a controller of an industrial machine which is not affected by disconnection of cables, external electrical noise, nor complicated lead-around cable work. Communication between a numerical control device, as a main control unit, and servo amplifiers, as drive control units servo motors of a machine tool, is performed by way of infrared communication. The communication may take the form of input/output voltage commands, i.e. PWM commands, and feedback signals. By way of the infrared communication, lead-around cable operation, disconnection, and external electrical noises are eliminated, while simplifying machine tool layout design.
摘要翻译： PCT No.PCT / JP98 / 00983 Sec。 371日期：1998年11月10日 102（e）1998年11月10日日期PCT 1998年3月10日PCT PCT。 公开号WO98 / 40798 日期1998年9月17日通信装置和方法在不受电缆断开，外部电气噪声以及复杂的引线电缆工作影响的工业机器的控制器中提供通信。 数字控制装置作为主控制单元和作为机床的驱动控制单元伺服电动机的伺服放大器之间的通信通过红外线通信进行。 通信可以采取输入/输出电压命令（即PWM命令）和反馈信号的形式。 通过红外通信，消除了引线电缆的操作，断线和外部电气噪声，同时简化了机床布局设计。
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