公开(公告)号：US09438144B2

公开(公告)日：2016-09-06

申请号：US14205489

申请日：2014-03-12

申请人： GENERAL ELECTRIC COMPANY

发明人： Fei Xu ,  Xu Chu ,  Pengju Kang ,  Heng Wu ,  Baoming Huang

IPC分类号： H02H7/09 ,  H02P6/00 ,  H02P6/12

CPC分类号： H02P29/024 ,  B60L11/1805 ,  B60L11/1851 ,  B60L2220/20 ,  B60L2240/42 ,  B60L2270/00 ,  H02P6/12 ,  H02P6/34 ,  H02P23/0077 ,  H02P27/06 ,  H02P29/0241

摘要： An exemplary motor driving system includes a power source, a driving circuit, a controller, a motor, and a protection circuit. The driving circuit including at least one switching device coupled with the power source. The motor includes a plurality of windings. The motor is coupled with the driving circuit and driven by the driving circuit. The controller is configured to provide first switch signals to the at least one switching device of the driving circuit in a normal mode. The protection circuit is coupled with the controller, and configured to generate second switch signals based at least in part on a fault signal in a fault mode and provide the second switch signals to the at least one switching device of the driving circuit so as to reconstruct circuit loops between the driving circuit and the plurality of windings. A method for operating the motor driving system is also described.

摘要翻译： 示例性的电动机驱动系统包括电源，驱动电路，控制器，电动机和保护电路。 驱动电路包括与电源耦合的至少一个开关装置。 马达包括多个绕组。 电机与驱动电路耦合并由驱动电路驱动。 控制器被配置为以正常模式向驱动电路的至少一个开关装置提供第一开关信号。 保护电路与控制器耦合，并被配置为至少部分地基于故障模式中的故障信号产生第二开关信号，并将第二开关信号提供给驱动电路的至少一个开关装置，以便重构 电路在驱动电路和多个绕组之间循环。 还描述了用于操作电动机驱动系统的方法。

公开(公告)号：US09397593B2

公开(公告)日：2016-07-19

申请号：US14395360

申请日：2012-06-05

申请人： Masanori Kato

发明人： Masanori Kato

IPC分类号： H02P6/12 ,  H02P27/04 ,  H02M5/458 ,  H02H7/08 ,  H02H7/09 ,  H02P27/08 ,  H02P29/00 ,  H02P29/02 ,  G01R31/02 ,  G01R31/42

CPC分类号： H02P6/12 ,  G01R31/028 ,  G01R31/42 ,  H02P27/085 ,  H02P29/026 ,  H02P29/40

摘要： A ripple current that flows into a main-circuit capacitor is estimated based on a system impedance and output power to a motor, thereby making it possible to always perform ripple-current estimation and life estimation computation for the main-circuit capacitor online. Because data of the system impedance which largely affects the ripple-current estimation for the main-circuit capacitor is used, the capacitor ripple current can be estimated according to the magnitude of the system impedance. This enables highly-accurate life estimation computation of the main-circuit capacitor.

摘要翻译： 基于系统阻抗和对电动机的输出功率来估计流入主电路电容器的纹波电流，从而可以在线地对主电路电容器进行纹波电流估计和寿命估计计算。 由于使用了主要影响主电路电容器的纹波电流估计的系统阻抗的数据，所以可以根据系统阻抗的大小估算电容器纹波电流。 这使得能够对主电路电容器进行高精度的寿命估计计算。

公开(公告)号：US09178449B2

公开(公告)日：2015-11-03

申请号：US13579143

申请日：2011-01-11

申请人： Naoyoshi Takamatsu ,  Masaki Okamura

发明人： Naoyoshi Takamatsu ,  Masaki Okamura

IPC分类号： H02H7/09 ,  H02H7/08 ,  H02P6/00 ,  B60L11/00 ,  B60L11/14 ,  B60L11/16 ,  B60L11/18 ,  B60L15/20 ,  H02P23/14 ,  H02P27/08 ,  H02P21/00

CPC分类号： H02P6/001 ,  B60L11/005 ,  B60L11/14 ,  B60L11/16 ,  B60L11/1868 ,  B60L15/20 ,  B60L2210/14 ,  B60L2210/40 ,  B60L2240/421 ,  B60L2240/423 ,  H02P21/36 ,  H02P23/14 ,  H02P27/08 ,  H02P2201/07 ,  H02P2201/09 ,  Y02T10/643 ,  Y02T10/644 ,  Y02T10/645 ,  Y02T10/70 ,  Y02T10/7005 ,  Y02T10/7022 ,  Y02T10/7066 ,  Y02T10/7077 ,  Y02T10/7225 ,  Y02T10/7241 ,  Y02T10/7275

摘要： A motor drive system control apparatus includes: a direct current power supply; a three-phase alternating current motor; a first power converter including switching circuits corresponding to each of three phases of the three-phase alternating current motor and a smoothing condenser disposed electrically in parallel with the switching circuits; an estimating device for estimating peak generation timing in which a peak is generated in an inter-terminal voltage VH of the smoothing condenser on the basis of at least one of an operating condition of the three-phase alternating current motor; a switching condition of the switching circuits corresponding to each of the three phases; and a controlling device for controlling a drive condition of the first power converter so the inter-terminal voltage VH (or a VH peak) in the peak generation timing decreases, for a predetermined period from start timing set in a time domain before the estimated peak generation timing.

摘要翻译： 电动机驱动系统控制装置包括：直流电源; 三相交流电动机; 第一电力转换器，包括与三相交流电动机的三相中的每一相对应的开关电路和与开关电路并联设置的平滑电容器; 估计装置，用于根据三相交流电动机的工作条件中的至少一个来估计在平滑电容器的端子间电压VH中产生峰值的峰值产生定时; 对应于三相中的每一个的开关电路的开关条件; 以及用于控制第一功率转换器的驱动条件的控制装置，使得峰值生成定时中的端子间电压VH（或VH峰值）在从估计峰值之前的时域中设置的开始定时开始的预定时间段内减小 生成时间。

公开(公告)号：US09071188B2

公开(公告)日：2015-06-30

申请号：US12875504

申请日：2010-09-03

申请人： John C. Vanko ,  Larry T. Albert ,  Michael K. Forster ,  Bhanuprasad V. Gorti ,  Jason K. Leh ,  Garrett P. McCormick ,  Samuel G. Woods ,  David R. Beers

发明人： John C. Vanko ,  Larry T. Albert ,  Michael K. Forster ,  Bhanuprasad V. Gorti ,  Jason K. Leh ,  Garrett P. McCormick ,  Samuel G. Woods ,  David R. Beers

IPC分类号： H02H7/09 ,  H02K7/14 ,  H02P7/00 ,  H02P27/04 ,  H02P25/14 ,  B25F5/00 ,  H02H3/02 ,  H02P29/00 ,  H02P3/22 ,  H02H7/093

CPC分类号： H02P25/145 ,  B25F5/00 ,  H02H3/023 ,  H02H3/247 ,  H02H7/0827 ,  H02H7/093 ,  H02K7/145 ,  H02P3/22 ,  H02P7/00 ,  H02P23/26 ,  H02P29/10

摘要： A protective redundancy circuit is provided for a power tool having an electric motor. The protective redundant subsystem is comprised of: a motor switch coupled in series with the motor; a motor control module that controls the switching operation of the motor switch; and a protective control module that monitors switching operation of the motor switch and disables the power tool when the switching operation of the motor switch fails. In the context of an AC powered tool, the switching operation of the motor switch is correlated to and synchronized to the waveform of the AC input signal. During each cycle or half cycle, the motor control module introduces a delay period before closing the motor switch and the protective control module determines the operational status of the motor switch by measuring the voltage across the motor switch during the delay period.

摘要翻译： 为具有电动机的电动工具提供保护冗余电路。 保护冗余子系统包括：与电动机串联耦合的电动机开关; 控制电动机开关的开关动作的电动机控制模块; 以及保护控制模块，用于监视电动机开关的切换操作，并且在电动机开关的切换操作失败时禁用电动工具。 在交流电动工具的上下文中，电动机开关的开关操作与AC输入信号的波形相关并与其同步。 在每个周期或半周期期间，电机控制模块在关闭电动机开关之前引入延迟时间，并且保护控制模块通过在延迟期间测量电动机开关两端的电压来确定电动机开关的操作状态。

公开(公告)号：US09042146B2

公开(公告)日：2015-05-26

申请号：US13548685

申请日：2012-07-13

申请人： Bruce W. Weiss ,  Doyle F. Busse ,  Jeremy J. Keegan ,  Lixiang Wei ,  Michael W. Loth ,  Rangarajan M. Tallam ,  Yogesh Patel

发明人： Bruce W. Weiss ,  Doyle F. Busse ,  Jeremy J. Keegan ,  Lixiang Wei ,  Michael W. Loth ,  Rangarajan M. Tallam ,  Yogesh Patel

IPC分类号： H02M7/537 ,  H02H7/09 ,  H02M7/48

CPC分类号： H02P6/20 ,  H02H7/09 ,  H02M7/48 ,  H02M7/537 ,  H02P6/04 ,  H02P6/28

摘要： Systems and methods are provided for pre-charging the DC bus on a motor drive. Pre-charging techniques involve pre-charge circuitry including a manual switch, an automatic switch, and pre-charge control circuitry to switch the automatic switch between pre-charge and pre-charge bypass modes in response to an initialized pre-charge operation, input voltage sags, and so forth. In some embodiments, the pre-charge operation may be initialized by switching the manual switch closed. In some embodiments, the pre-charge operation may also be initialized by a detected voltage sag on the DC bus. The pre-charge circuitry may also be configured to disconnect to isolate a motor drive from the common DC bus under certain fault conditions.

摘要翻译： 提供的系统和方法用于在电机驱动器上对DC总线进行预充电。 预充电技术涉及预充电电路，包括手动开关，自动开关和预充电控制电路，以响应于初始化的预充电操作，输入的预充电和预充电旁路模式来切换自动开关 电压骤降​​等。 在一些实施例中，预充电操作可以通过关闭手动开关来初始化。 在一些实施例中，预充电操作也可以由DC总线上的检测到的电压暂降来初始化。 预充电电路还可以被配置为在某些故障条件下将电动机驱动器与公共DC总线隔离。

公开(公告)号：US08878475B2

公开(公告)日：2014-11-04

申请号：US12940438

申请日：2010-11-05

申请人： Frederic Bonvin ,  Diego Armaroli

发明人： Frederic Bonvin ,  Diego Armaroli

IPC分类号： H02H7/09 ,  G11B19/28

CPC分类号： G11B19/28

摘要： Techniques and apparatus for limiting the current through a motor, such as a motor for rotating a rotatable element of a hard drive. The current can be limited based on a threshold. A first threshold value can be set for a first time period. A second threshold value can be set for a second time period in which the current through the motor rises. The second threshold value is lower than the first threshold value. A spike in the supply current upon accelerating the rotatable element of the motor can thereby be reduced or eliminated.

摘要翻译： 用于限制通过马达的电流的技术和装置，例如用于旋转硬盘驱动器的可旋转元件的马达。 可以根据阈值限制电流。 可以在第一时间段内设置第一阈值。 可以在其中通过电动机的电流上升的第二时间段设置第二阈值。 第二阈值低于第一阈值。 因此，可以减少或消除在加速电动机的可旋转元件时的供电电流的尖峰。

公开(公告)号：US08810176B2

公开(公告)日：2014-08-19

申请号：US13486619

申请日：2012-06-01

申请人： Eiichiro Kawakami ,  Takeshi Itoh

发明人： Eiichiro Kawakami ,  Takeshi Itoh

IPC分类号： H02H7/09 ,  H02P6/10

CPC分类号： H02P6/10

摘要： A boost control section for controlling a converter includes a PI control section and a resonance suppression section. The PI control section calculates a basic command value based on a deviation between a drive voltage generated by the converter and a target voltage to equalize the drive voltage and the target voltage. The resonance suppression section calculates, based on the state of variation of the drive voltage, a correction value for correcting the basic command value to suppress the variation. The basic command value is corrected by adding the correction value. First and second drive pulses corresponding to the corrected command value are outputted to the converter.

摘要翻译： 用于控制转换器的升压控制部分包括PI控制部分和谐振抑制部分。 PI控制部基于由转换器产生的驱动电压与目标电压之间的偏差来计算基本指令值，以平均驱动电压和目标电压。 谐振抑制部基于驱动电压的变化的状态，计算用于校正基本指令值的校正值，以抑制变化。 通过添加校正值来校正基本指令值。 对应于修正的指令值的第一和第二驱动脉冲被输出到转换器。

公开(公告)号：US20140218828A1

公开(公告)日：2014-08-07

申请号：US14022835

申请日：2013-09-10

申请人： Delta Electronics, Inc.

发明人： Che-Hung LIN ,  Yueh-Lung HUANG ,  Yen-Hung CHEN

IPC分类号： H02H7/09

CPC分类号： H02H7/09 ,  H02H3/207

摘要： A power-protection apparatus is provided. The apparatus includes an over-voltage protection unit for generating an over-voltage detection signal when the power supply of the load is over the upper limit of a predetermined voltage range; an under-voltage protection unit for generating an under-voltage detection signal when the power supply of the load is under the lower limit of the predetermined voltage range; a working-state detection unit for receiving a control signal and generating a working-state detection signal when the level time-change rate of the control signal is over a time-change rate threshold; and a power-control unit coupled to the over-voltage protection unit, the working-state detection unit and the under-voltage protection unit for controlling the on and off of the power supply according to the over-voltage detection signal, the under-voltage detection signal or the working-state detection

摘要翻译： 提供了一种电源保护装置。 该装置包括：过电压保护单元，用于当负载的电源超过预定电压范围的上限时产生过电压检测信号; 欠压保护单元，用于当所述负载的电源处于所述预定电压范围的下限时产生欠电压检测信号; 工作状态检测单元，用于当控制信号的电平时间变化率超过时间变化率阈值时，接收控制信号并产生工作状态检测信号; 以及功率控制单元，其耦合到过电压保护单元，工作状态检测单元和欠压保护单元，用于根据过电压检测信号控制电源的接通和关断， 电压检测信号或工作状态检测

公开(公告)号：US08760094B2

公开(公告)日：2014-06-24

申请号：US13315555

申请日：2011-12-09

申请人： Eugene V. Solodovnik ,  Jeffrey J. White

发明人： Eugene V. Solodovnik ,  Jeffrey J. White

IPC分类号： H02H7/09

CPC分类号： G05F1/66 ,  B60R16/03 ,  H02H7/125 ,  H02P1/021

摘要： An apparatus and method for protecting a power system comprising a generator providing power to an alternating current bus, a power converter for converting alternating current power on the alternating current bus to direct current power on a direct current bus, and a direct current load powered by the direct current power on the direct current bus. An undesired condition is identified at the input to the power converter from the alternating current bus. The undesired condition is caused by at least one of the power converter, the direct current bus, or the load. The power converter is disconnected from the alternating current bus in response to identifying the undesired condition for at least a time delay. The time delay is selected such that the power converter is disconnected from the alternating current bus before the alternating current bus is disconnected from the generator due to the undesired condition.

摘要翻译： 一种用于保护包括向交流总线供电的发电机的电力系统的装置和方法，用于将交流总线上的交流电转换成直流母线上的直流电力的功率转换器，以及由直流母线 直流母线上的直流电源。 在来自交流总线的功率转换器的输入处识别出不期望的状况。 不利条件由功率转换器，直流总线或负载中的至少一个引起。 响应于识别至少一个时间延迟的不期望的状况，电力转换器与交流总线断开连接。 选择时间延迟，使得在由于不期望的状况而使交流总线与发电机断开之前，电力转换器与交流总线断开连接。

公开(公告)号：US20140111890A1

公开(公告)日：2014-04-24

申请号：US13656232

申请日：2012-10-19

申请人： MACRONIX INTERNATIONAL CO., LTD.

发明人： Hsin-Liang Chen ,  Shuo-Lun Tu

IPC分类号： H01L29/73 ,  H02H9/04 ,  H02H7/09 ,  H01L27/088

CPC分类号： H02H7/09 ,  H01L27/0262 ,  H01L29/7436 ,  H02H9/04 ,  H02H9/046

摘要： A bi-directional electrostatic discharge (ESD) protection device may include a substrate, an N+ doped buried layer, an N-type well region and two P-type well regions. The N+ doped buried layer may be disposed proximate to the substrate. The N-type well region may encompass the two P-type well regions such that a portion of the N-type well region is interposed between the two P-type well regions. The P-type well regions may be disposed proximate to the N+ doped buried layer and comprise one or more N+ doped plates and one or more P+ doped plates.

摘要翻译： 双向静电放电（ESD）保护装置可以包括衬底，N +掺杂掩埋层，N型阱区和两个P型阱区。 N +掺杂掩埋层可以靠近衬底设置。 N型阱区可以包围两个P型阱区，使得N型阱区的一部分插入在两个P型阱区之间。 P型阱区可以靠近N +掺杂掩埋层设置并且包括一个或多个N +掺杂板和一个或多个P +掺杂板。